Коды ошибок arctic cat 700

Basir


  • #21

Считай ошибки, что гадать

самостоятельно как это сделать?

chuwak


  • #22

Если не изменяет память
Вставить перемычку к крайние 2 контакта диагностического разъема
Включить полный привод и блокировку
Включить зажигание
На табло высветится SC это сохраненные ошибки, AC активные ошибки
Если будет 00 ошибок нет
[DOUBLEPOST=1428436865,1428436730][/DOUBLEPOST]Парни в мануале все это есть, прочтите на досуге от корки до корки.
Кстати есть возможность перевести весь сервис мануал на русский, но это потребует небольших финансовых затрат если интересно можем скинутся и я сделаю

Смирнов Вячеслав


  • #23

Парни привет, подскажите пожалуйста, когда глушу кота 700 моргает ошибка сначала Р0635, потом она гаснет и появляется EFI, только купил технику, что может быть? подскажите

Присоединяюсь к вопросу. С ошибкой 0635 понятно ( усилитель) а что EFI значит и что делать для устранения

  • #24

Присоединяюсь к вопросу. С ошибкой 0635 понятно ( усилитель) а что EFI значит и что делать для устранения

EFI появляется когда есть какая-либо ошибка. Т.е. надо либо в сервис, либо считывать ошибки и самому разбираться.

  • #25

Кто знает что за ошибка EC 0.0 или что это вообще, сначала выскочила EFI? замкнул два провода и вылезло это?

  • #26

Привет, кто знает значение ошибок sc 1.2 и sc1.3. Когда включаю зажигание насос качает бенз, но давление держит после накачки не больше секунды. То есть заводить приходиться прям в процессе накачки. Померил давление после бензонасоса, все в норме 3.2 очка. Почему не держится не пойму, где клапан есть который должен некоторое время держать давление после включения зажигания???

  • #27

Привет, кто знает значение ошибок sc 1.2 и sc1.3. Когда включаю зажигание насос качает бенз, но давление держит после накачки не больше секунды. То есть заводить приходиться прям в процессе накачки. Померил давление после бензонасоса, все в норме 3.2 очка. Почему не держится не пойму, где клапан есть который должен некоторое время держать давление после включения зажигания???

Клапан находится на пластиковой колбе для насоса (круглый металлический, защелкивается пластиковой крышкой). У меня такое было, спрашивал у всех совет. Совет был один- продуть клапан. У меня не вышло, он то держал, то лил и квадр заводился с 3-5 раза. отдельно клапан я не нашел, а насос в сборе с клапаном стоит доХ.
Поступил кардинально, заглушил клапан, врезал в крышку фитинг для обратки и поставил снаружи фильтр с обратным клапаном от фольсвагена и шланг на обратку. Работает отлично.

  • #28

Клапан находится на пластиковой колбе для насоса (круглый металлический, защелкивается пластиковой крышкой). У меня такое было, спрашивал у всех совет. Совет был один- продуть клапан. У меня не вышло, он то держал, то лил и квадр заводился с 3-5 раза. отдельно клапан я не нашел, а насос в сборе с клапаном стоит доХ.
Поступил кардинально, заглушил клапан, врезал в крышку фитинг для обратки и поставил снаружи фильтр с обратным клапаном от фольсвагена и шланг на обратку. Работает отлично.

А что за фильтр такой? Я знаю что клапан там есть, но обычно когда он не работает, то не работает и квадрик и давление либо маленькое либо большое. А тут прям все в норме, но давляк не держится и секунду. Буду разбирать, смотреть. Про фильтр по подробнее поделись? Думал о таком, но не знал где взять.:Drinks:

  • #29

Топливный фильтр UFI 31.832.00

Артикул: 31.832.00
Производитель: UFI

Италия

Параметры:

  • Наружный диаметр 1 [мм]: 61
  • Внешний диаметр [мм]: 55
  • Впускн. ? [мм]: 8
  • Выпускн.-? [мм]: 8
  • Высота [мм]: 164
  • Давление открытия обгонного клапана [бар]: 3

ТИПО ТАКОГО, они все стоят в районе 1000-1300 руб.
А по работе, я вынимал колбу всю и пихал в пластиковую пятилитровую канистру и смотрел как работает. Ставил обычный манометр водяной на шланг. При включении зажигания насос должен дать 3-5 атм, лишнее сбросить через клапан и давление должно остаться в районе 3 атм и ОЧЕНЬ медленно снижаться. У меня сбрасывал сразу до 0. Поэтому заводился раза с 5-ого. Потом работал нормально, но меня это достало.

IgoR_S


  • #30

Клапан находится на пластиковой колбе для насоса (круглый металлический, защелкивается пластиковой крышкой). У меня такое было, спрашивал у всех совет. Совет был один- продуть клапан. У меня не вышло, он то держал, то лил и квадр заводился с 3-5 раза. отдельно клапан я не нашел, а насос в сборе с клапаном стоит доХ.
Поступил кардинально, заглушил клапан, врезал в крышку фитинг для обратки и поставил снаружи фильтр с обратным клапаном от фольсвагена и шланг на обратку. Работает отлично.

Сергей, здравствуйте.
Стал мозги колупать клапан этот. то вообще не пропускает и тогда давление 5,5, то давление до 2-х падает
Отдельно не найти действительно(
Скажите, как Ваша система? Стабильно работает до сих пор?

  • #31

А что означает . Speed sensor. То что в переводе датчик скорости это мне понятно. Как на это реагировать?

  • #32

Сергей, здравствуйте.
Стал мозги колупать клапан этот. то вообще не пропускает и тогда давление 5,5, то давление до 2-х падает
Отдельно не найти действительно(
Скажите, как Ваша система? Стабильно работает до сих пор?

Да, все отлично работало пару лет. Сейчас квадр продан другому человеку. Проблем не высказывает.

  • #33

Парни подскажите вылезла ошибка АС32 заменил бензонасос, промыл форсунку — не заводится и не могу скинуть ошибку . TRV 700 12 года пробег 2700 я первый владелец

car2006man


  • #34

Смотри провода тонкие к форсунке и датчикам инжектора. Они с виду могут быть нормальные, а внутри жила обломана.

  • #36

Смотри провода тонкие к форсунке и датчикам инжектора. Они с виду могут быть нормальные, а внутри жила обломана.

Действительно провод на форсунку который выходит из жгута был короткий и натянутый, следствие лопнули жилы . Все по чинил Спасибо за быстрый ответ и за подсказку!

car2006man


  • #38

Добрый день, подскажите пожалуйста как убрать ошибку на котике 700 пишет belt на щитке приборов и перезагружает ее постоянно

car2006man


  • #39

Скорее всего хана приборке..

  • #40

Belt это ремень, как сбросить эту ошибку.?

Считать код ошибки можно и не имея дорогостоящего сканера, по морганию лампочки EFI. Для этого три раза нужно повернуть ключ зажигания на вкл-выкл. Поворачиваем ключ в положение вкл, ждем пока накачает насос, потом быстро без пауз выкл-вкл-выкл-вкл.

№ Код Описание возможной неисправности 1 Р0030 Обрыв в цепи нагревателя датчика кислорода 2 Р0031 Замыкание на массу в цепи нагревателя датчика кислорода первого цилиндра 3 Р0037 Замыкание на массу в цепи нагревателя датчика кислорода второго цилиндра 4 Р0032 Замыкание на «+» в цепи нагревателя датчика кислорода первого цилиндра 5 Р0038 Замыкание на «+» в цепи нагревателя датчика кислорода второго цилиндра 6 Р0053 Внутреннее сопротивление нагревателя датчика кислорода не соответствует норме 7 Р0105 Нет изменений сигнала с датчика давления воздуха на впуске (старение, засорение или замораживание влаги в датчике) 8 Р0106 Ошибочный сигнал с датчика давления воздуха на впуске ( утечка воздуха через датчик или места подсоединения, выход его из строя, проблема с проходом воздуха в датчик) 9 Р0107 Замыкание на массу в цепи датчика давления воздуха на впуске (слишком низкий уровень сигнала — для BOSCH; слишком низкий уровень сигнала с Т-МАР датчика — для DELPHI) 10 Р0108 Замыкание на «+» в цепи датчика давления воздуха на впуске (слишком высокий уровень сигнала — для BOSCH; слишком высокий уровень сигнала с Т-МАР датчика — для DELPHI) 11 Р0112 Слишком низкое напряжение сдатчика температуры воздуха на впуске (замыкание на массу) 12 Р0113 Замыкание на «+» в цепи датчика температуры воздуха на впуске (слишком высокий уровень сигнала) 13 Р0116 Сигнал сдатчика температуры двигателя ошибочный 14 Р0117 Напряжение сигнала с датчика температуры двигателя слишком низкое (замыкание на массу) 15 Р0118 Напряжение сигнала с датчика температуры двигателя слишком высокое (перемычка на какую-то цепь питания) 16 Р0122 Слишком низкое напряжение с датчика положения заслонки (замыкание на массу) 17 Р0123 Слишком высокое напряжение с датчика положения заслонки (перемычка на какую-то цепь питания) 18 Р0130 Не соответствует норме сигнал с датчика кислорода (нарушение контакта в разъёме или перемычка с цепью нагревателя) 19 Р0131 Слишком низкое напряжение с датчика кислорода первого цилиндра (замыкание на массу) 20 Р0137 Слишком низкое напряжение с датчика кислорода второго цилиндра (замыкание на массу) 21 Р0132 Слишком высокое напряжение в сигнальной цепи датчика кислорода первого цилиндра (если ECU видит напряжение с него постоянно более 1,5 V, то считает это как замыкание на «+») 22 Р0138 Слишком высокое напряжение в сигнальной цепи датчика кислорода второго цилиндра (если ECU видит напряжение с него постоянно более 1,5V, то считает это как замыкание на «+») 23 Р0133 Старение датчика кислорода (переход ECU на усреднённые данные для работы системы впрыска, датчик увеличил время отклика, заменить датчик) 24 Р0134 Ошибочный сигнал сдатчика кислорода (если при запуске двигателя ECU видит, что напряжение с него постоянно остаётся в диапазоне 0,4- 0,6V, то считает это как замыкание на «+») 25 Р0170

Самообучающаяся система управления впрыском расценивает работу цепи контроля за смесеобразованием как некорректную. Появление данных кодов корректно

26 Р0171

Самообучающаяся система управления впрыском расценивает работу цепи контроля над смесеобразованием как «беднит». только в том случае, если отсутствуют какие-либо ошибки в системе

27 Р0172

Самообучающаяся система управления впрыском расценивает работу цепи контроля над смесеобразованием как «богатит». управления впрыском.

28 Р0201 Обрыв в цепи форсунки первого цилиндра (нарушение контакта в разъёмах) 29 Р0202 Обрыв в цепи форсунки второго цилиндра (нарушение контакта в разъёмах) 30 Р0230/0231 Сбой в цепи управления топливным насосом 31 Р0232 Перемычка на «+»в цепи управления топливным насосом (перемычка с какой-либо цепью питания) 32 Р0261 Замыкание на массу в цепи управления форсункой 33 Р0262 Перемычка на «+»в цепи управления форсункой (перемычка с какой-либо цепью питания) 34 Р0321 Сбой точки отсчёта датчиком частоты вращения двигателя (напр. изменение взаимного расположения датчика и ротора) 35 Р0322 Нет сигнала от датчика частоты вращения двигателя (напр. короткое замыкание или обрыв) 36 Р0336 Недостоверный сигнал сдатчика положения коленвала 37 Р0337 Низкий уровень сигнала с датчика положения коленвала 38 Р0351 Сбой в управлении цепью зажигания 39 Р0352   40 Р0444 Подтверждённая версия X-MOTO: Обрыв в цепи клапана XX- для BOSCH Обрыв цепи (низкое напряжение) дополнительного реле стартера- для DELPHI 41 Р0445 Подтверждённая версия X-MOTO: Слишком высокое напряжение на дополнительном реле стартера для DELPHI 42 Р0458 Версия X-MOTO: Слишком низкое напряжение на клапан XX — для BOSCH 43 Р0459 Версия X-MOTO: Слишком высокое напряжение на клапан XX — для BOSCH 44 Р0500 Недостоверный сигнал от датчика скорости (при наличии особых условий: напр. включена нейтраль, но движение продолжается) 45 Р0501 Недостоверный сигнал от датчика скорости (обрыв или замыкание в цепи, выход из строя датчика) 46 Р0505 Сбой в цепи регулирования XX 47 Р0506 Частота вращения на холостом ходу ниже заданной (напр. нарушение в работе воздушного клапана XX, нарушение положения упорного винта заслонки, заедание тросика газа, грязь внутри корпуса заслонки или привода) 48 Р0507 Частота вращения на холостом ходу выше заданной (возможные причины: нарушение в работе воздушного клапана XX, нарушение положения упорного винта заслонки, заедание тросика газа, грязь внутри корпуса заслонки или привода, утечка воздуха на впуске) 49 Р0560 Напряжение АКБ необычное 50 Р0562 Слишком низкое напряжение на АКБ 51 Р0563 Слишком высокое напряжение на АКБ 52 Р0602 Неисправность модуля электронного контроля (ECU) 53 Р0627 Обрыв в цепи реле топливного насоса 54 Р0628 Замыкание на массу в цепи реле топливного насоса 55 Р0629 Замыкание на «+» в цепи реле топливного насоса 56 Р0650 Неполадки в цепи MIL Light (Лампы «Check engine») 57 Р0850 Неполадки в цепи запуска двигателя (не может быть запущен на нейтрали) 58 Р1693 Замыкание на «+» в цепи MIL Light (Лампы «Check engine») (Версия X-MOTO: В цепи тахометра слишком низкий уровень сигнала сдатчика положения коленвала — для DELPHI) 59 Р1694 Замыкание на массу в цепи MIL Light (Лампы «Check engine») (Версия X-MOTO: В цепи тахометра слишком высокий уровень сигнала с датчика положения коленвала — для DELPHI) 60 Р2177 Самообучающаяся система управления впрыском расценивает смесь на оборотах выше XX как «Слишком бедная» 61 Р2178 Самообучающаяся система управления впрыском расценивает смесь на оборотах выше XX как «Слишком богатая»

Устанавливается на многие модели мототехники с инжектором.

Delphi MT05 работает на базе процессора Infineon SAK-XC164CM-16F40F с внутренней флеш-памятью 128Кб.

Список техники:

Benelli: BN302, VLM 150, BJ250T-8
Bennche: Bighorn 400, Bighorn 700
Excalibur: UTV700-4, UTV700-5
Geon: Blackster 250 EFI, Daytona 350 EFI, Invader 350 EFI, Issen 250 EFI, Tossa 250 EFI, Tourer 350 EFI
HiSUN: 700 EFI
Jialing: JH200-8
Lifan: LF250-P
Massimo: Alligator 700, MSU-400, MSU-500
Menards: Yardsport YS700, Yardsport YS400, Yardsport UTV 700, Yardsport UTV 400
Qlink: FrontRunner 700 EFI, FrontRunner 400 EFI
S&T (Hyosung): GV250
Speed Gear: Buggy 600, Buggy 800, Force 500 EFI, Force 700 EFI, UTV 700 EFI, UTV 800 EFI
Stels: Trigger 125, UTV 800H, UTV 800V Dominator, S800 Россомаха, 600 Benelli
Supermach: UTV700-BF-TL, UTV400-BF-TL
Wels: ATV 800 EFI
Zongshen: RX3 (ZS250GY-3)

Delphi MT05.2 работает на базе процессора Infineon SAK-XC164CS-32F40BB с внутренней флеш-памятью 256Кб.
Список поддерживаемых ТС с блоками Delphi MT05.2
Список техники:

Benelli: BN600
CF Moto: CF800 U8, CF800 X8, CF800 Z8

Полезная информация

Коды ошибок стелс

Считать код ошибки можно и не имея дорогостоящего сканера,по морганию лампочки EFI. Для этого три раза нужно повернуть ключ зажигания на вкл-выкл. Поворачиваем ключ в положение вкл, ждем пока накачает насос, потом быстро без пауз выкл-вкл-выкл-вкл. Коды ошибок электронной системы впрыска Stels  800 Число DTC Описание DTC Связанная Калибровка HEX DEC

P0107 MAP Низкое напряжение цепи, либо обрыв KsDGDM MAP ShortLow 107 263

Р0108 MAP Высокое напряжение цепи KsDGDM MAP ShortHigh 108 264

Р0112 IAT Низкое напряжение цепи KsDGDM IAT ShortLow 112 274

Р0113 IAT Высокое напряжение цепи, либо обрыв KsDGDM IAT ShortHigh 113 275

Р0117 Низкое напряжение цепи д. темпер, масла/хладагента KsDGDM CoolantShortLow 117 279

Р0118 Высокое напряжение цепи, либо обрыв KsDGDM_CoolantShortHigh 118 280

Р0122 TPS Низкое напряжение цепи, либо обрыв KsDGDM TPS ShortLow 122 290

Р0123 TPS Высокое напряжение цепи KsDGDM TPS ShortHigh 123 291

Р0131 02S 1 Низкое напряжение цепи KsDGDM 02 1 ShortLow 131 305

Р0132 02S 1 Высокое напряжение цепи KsDGDM 02 1 ShortHigh 132 306

Р0031 02S Высокое напряжение цепи нагревателя KsDGDM 02 HeaterShortHigh 31 49

Р0032 02S Низкое напряжение цепи нагревателя KsDGDM 02 HeaterShorlLow 32 50

Р0201 Сбой цепи форсунки 1 KsDGDM INJ CYL A Fault 201 513

Р0202 Сбой цепи форсунки 2 KsDGDM INJ CYL В Fault 202 514

Р0230 FPR Низкое напряжение цепи спирали, либо обрыв KsDGDM FPP CircuitShortLow 230 560

Р0232 FPR Высокое напряжение цепи спирали KsDGDM_FPP_CircuitShortHigh 232 562

Р0336 СКР Шумный сигнал датчика KsDGDM CrankNoisySignal 336 822

Р0337 СКР Нет сигнала датчика KsDGDM CrankNoSignal 337 823

Р0351 Сбой катушки зажигания 1 цилиндра KsDGDM EST A Fault 351 849

Р0352 Сбой катушки зажигания 2 цилиндра KsDGDM EST В Fault 352 850

Р0505 Ошибка контроля оборотов холостого хода KsDGDM IdleControl 505 1285

Р0562 Низкое напряжение системы KsDGDM SysVoltLow 562 1378

Р0563 Высокое напряжение системы KsDGDM SysVoltHigh 563 1379

Р0650 MIL Сбой цепи KsDGDM MIL Circuit 650 1616

Р1693 Низкое напряжение цепи тахометра KsDGDM TAC Circuit Low 1693 5779

Р1694 Высокое напряжение цепи тахометра KsDGDM TAC Circuit High 1694 5780

Р0137 02S 2 Низкое напряжение цепи KsDGDM 02 2 ShortLow 137 311

Р0138 02S 2 Высокое напряжение цепи KsDGDM 02 2 ShortHigh 138 312

Р0038 02S Нагреватель 2 Высокое напряжение цепи KsDGDM_02_HeaterShortHigh 38 56

Р0037 02S Нагреватель 2 Низкое напряжение цепи KsDGDM 02 HeaterShorlLow 37 55

Р0500 VSS Нет сигнала KsDGDM VSS NoSignal 500 1280

Р0850 Ошибка переключателя нейтраль парковка KsDGDM ParkNeutralSwitch 850 2128

Р0445 ССР Короткое в высоком KsDGDM CCP CircuitShortHigh 445 1093

Р0444 ССР Короткое в низком, либо обрыв KsDGDM CCP CircuitShortLow 444 1092

Р0171 BLM Макс, адаптация {Kohler Special) KsFDIAG BLM MaxAdapt 171 369

Р0172 BLM Мин. адаптация (Kohler Special) KsFDIAG BLM MinAdapt 172 370

коды ошибок can-am (brp)

Коды ошибок can-am (brp) Чтобы зайти в режим сервиса:

1)Поверните ключ в положение «Lights ON»

2)Используя кнопку «Mode» перейдите,где показывают моточасы.

3)Нажмите кнопку «Mode» еще раз и ЗАЖМИТЕ. В этот момент быстро (очень быстро) переключайте «HI/LOW»,минимум 3 раза за 2 сек. Именно переключать свет. коды ошибок :

P0106 Напряжение датчика давления воздуха вне диапазона.

P0107 Напряжение датчика давления воздуха слишком низкое.

P0108 Напряжение датчика давления воздуха слишком высокое.

P0111 Проблема с датчиком температуры воздуха.

P0112 Напряжение датчика температуры воздуха слишком низкое.

P0113 Напряжение датчика температуры воздуха слишком высокое.

P0116 Проблема с датчиком температуры двигателя.

P0117 Напряжение датчика температуры двигателя слишком низкое.

P0118 Напряжение датчика температуры воздуха слишком высокое.

P0122 Напряжение датчика положения дроссельной заслонки слишком низкое.

P0123 Напряжение датчика положения дроссельной заслонки слишком высокое.

P0231 Топливный насос. Обрыв или замыкание.

P0232 Топливный насос замкнут на батарею.

P0261 Цилиндр #1 инжектор:обрыв или замыкание.

P0262 Цилиндр #1 инжектор замкнут на батарею.

P0264 Цилиндр #2 инжектор: обрыв или замыкание.

P0265 Цилиндр #2 инжектор замкнут на батарею.

P0336 Слишком высокие обороты двигателя.

P0337 Отсутствие сигнала коленвала.

P0339 Ошибка коленвала.

P0334 Отсутствие сигнала камер распред.

P0351 Пропуски зажигания цилиндра#1.

P0352 Пропуски зажигания цилиндра#2.

P0480 Вентилятор двигателя замкнут на батарею.

P0480 Вентилятор двигателя. Обрыв или замыкаие.

P0513 Неправильный ключ DESS.

P0520 Ошибка датчика давления масла.

P0562 Напряжение аккумулятора слишком низкое.

P0563 Напряжение аккумулятора слишком большое.

P0600 Проблема с контроллером CAN.

P0600 Отсутствует ID 514 в контроллере CAN .

P0601 Ошибка датчика положения дроссельной заслонки.

P0601 Вызов модуля мониторинга.

P0602 ECM не кодируется.

P0604 Ошибка RAM.

P0605 Ошибка EEPROM.

P0608 Напряжение датчика питания слижком низкое.

P0608 Напряжение датчика питания слишком высокое.

P0616 Реле стартера: обрыв или замыкание.

P0617 Реле стартера: замкнуто на батарею.

P0705 Неисправность PRNHL.

P1102 Ошибка адаптации датчика положения дроссельной заслонки.

P1104 Ошибка адаптации датчика положения дроссельной заслонки.

P1116 Высокая температура.

P1148 Обнаружена ошибка топливного отсекателя.

P1202 Датчик давления масла по-прежнему закрыт.

P1203 Протекает датчик давления масла.

P1520 Низкий уровень масла.

P1655 DESS замкнуто на батарею.

P1656 DESS line замкнуто на змелю.

P1675 Реле 2 замкнуто на батарею.

P1676 Реле 2 замкнуто на землю.

P1683 CAN RAM ошибка. P2119 ECU ошибка.

                                           коды ошибок POLARIS

В диагностику так выходить: ставим на парковку, быстро три раза вклвыкл зажыгание, оставляем на вк

45 Барометрическое давление/низкое выходное напряжение датчика атмосферного давления

46 Барометрическое давление/низкое выходное напряжение датчика атмосферного давления

41 Низкое выходное напряжение датчика температуры воздуха

41 Высокое выходное напряжение датчика температуры воздуха

42 Низкое выходное напряжение датчика температуры охлаждающей жидкости двигателя

42 Высокое выходное напряжение датчика температуры охлаждающей жидкости двигателя

22 Низкое выходное напряжение показатель датчика положения дроссельной заслонки 22 Высокое выходное напряжение датчика положения дроссельной заслонки

51 Неисправность в цепи инжектора — Cyl 1: Обрыв/Замыкание на массу

51 Неисправность в цепи инжектора — Cyl 1: Замыкание

52 Неисправность в цепи инжектора — Cyl 2: Обрыв/Замыкание на массу

52 Неисправность в цепи инжектора — Cyl 2: Замыкание

56 Топливный насос: Обрыв/Замыкание на массу

56 Топливный насос: Замыкание

44 Датчик положения коленвала (TPS): Обрыв/Замыкание на массу

36 Катушка зажигания A Prim/Sec Неисправность цепи: Обрыв/Замыкание на массу

36 Катушка зажигания A Prim/Sec Неисправность цепи: Обрыв/Замыкание на массу

37 Катушка зажигания B Prim/Sec Неисправность цепи: Обрыв/Замыкание на массу

37 Катушка зажигания B Prim/Sec Неисправность цепи: Обрыв/Замыкание на массу

31 Низкое напряжение в бортовой сети

31 Высокое напряжение в бортовой сети

55 Цепь MIL: Обрыв/Замыкание на массу

55 Цепь MIL: Замыкание

58 Цепь вентилятора охлаждения двигателя: Обрыв/Замыкание на массу

58 Цепь вентилятора охлаждения двигателя: Замыкание

47 Шаговый электродвигатель IAC: Обрыв

47 Шаговый электродвигатель IAC: Замыкание на массу и жмем желтую кнопку.

Само диагностика квадроцикла ЯМАХА ГРИЗЛИ

 Для начала диагностики необходимо войти в режим диагностики:

1. Выключить зажигание, двигстоп (левый пульт на руле, красный переключатель) перевести в положение выключено.

2. На приборке нажать одновременно и удерживать кнопки Select и Reset

3. Включить зажигание. Через 8 сек на дисплее загорится надпись DIAG

4. Нажать и удерживать те же кнопки еще раз на дисплее появится D1 и цифра 17 (норма) если нужно только стереть ошибки:

5. С помощью нажатия на любую кнопку Select или Reset пролистать меню до D62

6. На дисплее если ошибок нет будет гореть «0» а если есть то они будут по очереди возникать на экране.

7. Что бы стереть ошибку надо выкл. и вкл. двигстоп и так одну ошибку за другой

. 8. Когда дисплей покажет «0» выключить зажигание ключем в замке. Остальная предусмотренная диагностика:

Д01 Угол газа Полностью закрыт 15 – 20, проверять с полностью закрытым газом Полностью открыт 95 – 100. проверять с полностью открытым. При открывании газа значение стремится от меньшего к большему.

Д03 Разница атмосферного давления и давления всасываемого воздуха Кажет давление всасываемого воздуха (имеется ввиду в двигатель), при старте двигателя нажимайте и отпускайте газ, если значение изменится, с двиглом все акей. Д05 Температура всасываемого воздуха. Д06 Температура охлаждающей жидкости Д07 Не понял ничего, но попробую перевести. Пульс скорости квадрика (?) от 0 до 999, изменяется когда задние колеса крутятся. Число не обнуляется когда колеса останавливается. Д08 Датчик угла наклона Снимите датчик наклона и при положении прямо кажет 0.4, поверните его на 65 градусов покажет 1.4 Перевернутый показывает 3.7 ~ 4.4 как показала практика, нормальное значение для данного датчика 4.0 Д09 Вольтметр Д21 тест лампочки нейтралки Д60 История ошибок EEPROM Нет истории 00 Есть история 01 Д61 Показывает коды ошибок от 12 – 50 Д62 Стирание истории ошибок Может содержать до 16 ошибок, чтобы стереть выключите кнопкой (не ключом) и включите опять Д70 контрольный номер таблица ошибок: № ошибки, деталь Симптомы Вероятная причина неисправности cпособен/неспособен заводиться cпособен/неспособен двигаться ———————————— 12 датчик положения Коленчатого вала Никакие нормальные сигналы не получены от датчика положения коленчатого вала —- Незамкнутая цепь или короткое замыкание в проводном жгуте. • Дефектный датчик положения коленчатого вала. • Сбой подхватывания сигнала ротора. • Сбой в ECU. • Ненадлежащим образом установленный датчик. — Неспособен Неспособен ———————————— 13 Датчик давления воздуха впуска (незамкнутая цепь или короткое замыкание) Датчик давления воздуха впуска: незамкнутая цепь или короткое замыкание обнаружено. —- • Незамкнутая цепь или короткое замыкание в проводном жгуте. • Дефектный датчик давления воздуха впуска. • Сбой в ECU. —- Способен Способен ———————————- 14 Датчик давления воздуха впуска (линия шланга) Датчик давления воздуха впуска: неисправность в системе шланга (забитый или отделенный шланг). — • Шланг датчика давления воздуха впуска отделен, забит, загнут, или зажат. • Сбой в ECU. —- Способен Способен ———————————— 15 Датчик положения дросселя (открытый или короткое замыкание) Датчик положения дросселя: незамкнутая цепь или короткое замыкание обнаружено. —— • Незамкнутая цепь или короткое замыкание в проводе sub lead. • Незамкнутая цепь или короткое замыкание в проводном жгуте. • Дефектный датчик положения дросселя. • Ненадлежащим образом установленный датчик положения дросселя. • Сбой в ECU. —- Способен Способен ————————————- 16 Датчик положения дросселя Датчик положения дросселя заедает. —— • Заедает датчик положения дросселя. • Сбой в ECU. —- Способен Способен ———————————— 21 Датчик температуры ОЖ (охл. жидкость) Датчик температуры ОЖ: незамкнутая цепь или короткое замыкание обнаружено. — • Незамкнутая цепь или короткое замыкание в проводном жгуте. • Дефектный датчик температуры ОЖ. • Сбой в ECU. • Ненадлежащим образом установленный датчик температуры ОЖ. —- Способен. Способен. ———————————— 22 Датчик температуры воздуха впуска (незамкнутая цепь или короткое замыкание) Датчик температуры воздуха впуска: незамкнутая цепь или короткое замыкание обнаружено. —— • Незамкнутая цепь или короткое замыкание в проводном жгуте. • Дефектный датчик температуры воздуха впуска. • Сбой в ECU. • Ненадлежащим образом установленный датчик температуры воздуха впуска. —— Способен Способен ———————————— 30 Датчик угла наклона (запирается обнаруженный???) Транспортное средство опрокинулось. —- • Опрокинутый. • Сбой в ECU. —- Неспособен Неспособен ———————————— 33 Катушка зажигания (дефектное зажигание) Сбой обнаружен в первичном проводе зажигания Спираль (обмотка?). —— • Незамкнутая цепь или короткое замыкание в проводном жгуте. • Сбой в катушке зажигания. • Сбой в ECU. • Сбой в компоненте системы цепи зажигания. ——- Неспособен Неспособен ———————————— 37 Клапан частоты холостого хода продается только в сборе с дросселем. Ошибка редкая. Информацию об ошибке предоставил Bsa17. Цитата Сообщение от Bsa17 После смены датчика Чек погас, ошибка перестала высвечиваться, обороты стали ровные, передачи стали включатся легко без рывков и скрежета, стрельба прекратилась. ——————————— 39 Инжектор (незамкнутая цепь) Инжектор: незамкнутая цепь обнаружена. —— • Незамкнутая цепь или короткое замыкание в проводном жгуте. • Ненадлежащим образом установленный инжектор. • Дефектный инжектор. —— Неспособен Неспособен ———————————- 41 Датчик угла наклона Датчик угла наклона: незамкнутая цепь или короткое замыкание обнаружено. —— • Незамкнутая цепь или короткое замыкание в проводном жгуте. • Дефектный датчик угла наклона . • Сбой в ECU. —— Неспособен Неспособен ———————————- 42 Датчика скорости Никакие нормальные сигналы не получены от датчика скорости. —- • Незамкнутая цепь в проводном жгуте. • Дефектный датчик скорости. • обнаружен Cбой в датчике скорости транспортного средства . • Сбой в машинной стороне нейтрального выключателя. • Сбой в ECU. —- Способен Способен ———————————— 43 Напряжение топливной системы (контроль напряжение) ECU неспособно контролировать напряжение батареи ( незамкнутая цепь или короткое замыкание на линии к ECU). —— • Незамкнутая цепь или короткое замыкание в проводном жгуте. • Сбой в ECU. —— Способен Способен ———————————— 44 Ошибка в написании количества регулировки СО на ПЗУ Ошибка обнаружена, читая или при письме на ПЗУ (значение регулировки СО). —— • Сбой в ECU. (значение регулировки СО не должным образом написано или читается с внутренней памяти). —— Способен Способен ———————————— 46 Электропитание системы транспортного средства (Контролирующее напряжение) Электропитание не нормально. —- • Сбой в системе зарядки. —— Способен Способен ———————————— 50 ECU внутренний сбой (ошибка проверки памяти) Дефектная память ECU. (Когда этот сбой обнаружен в ECU, номер кода неисправности не мог бы появиться на метре). —— • Сбой в ЭКЮ. (Программа и данные не должным образом записаны или читаются с внутренней памяти.) —— Неспособен Неспособен ———————————- Er-1 ECU внутренний сбой (ошибка сигнала выхода) Никакие сигналы не получены от ECU. Неспособен Неспособен ———————————- Er-2 ECU внутренний сбой (ошибка сигнала выхода) Никакие сигналы не получены от ECU в пределах указанной продолжительности. Неспособен Неспособен ———————————- Er-3 ECU внутренний сбой (ошибка сигнала выхода) Данные от ECU не могут быть получены правильно. Неспособен Неспособен ———————————- Er-4 ECU внутренний сбой (входная ошибка сигнала) Незарегистрированные данные были получены от Метр (приборка). Неспособен Неспособен

ремень вариатора (аналоги)

HiSun 500/700

UA422 940×33 Ultimax UA422 Stels ATV/UTV 500/700 HiSun, Yamaha (550-700cc) UA438 948×33 Ultimax UA438 Stels ATV/UTV 500/700 HiSun, Yamaha RHINO (700cc) HPX2233 943×33 Dayco HPX2233 Yamaha, HiSun ATV/UTV XTX2233 943×33 Dayco XTX2233 Yamaha, HiSun ATV/UTV (усиленный) 29C3596 943×33 Gates 29C3596 Yamaha, HiSun ATV/UTV (усиленный) 29G3596 943×33 Gates 29G3596 Yamaha, HiSun ATV/UTV Kazuma UA448 1014×32 Ultimax UA448 Stels ATV 500К/GT/GT1 Казума, Polaris (550-850cc) UA456 1032×32 Ultimax UA456 Stels ATV 500K/GT/GT1, Polaris RZR XP (800cc) UA426 1039×29 Ultimax UA426 Stels ATV 500GT Kazuma, Polaris (500-800cc) XTX2244 1014×31,5 Dayco XTX2244 Polaris, Kazuma ATV (усиленный) 24C4022 1051×32 Gates 24C4022 Polaris, Kazuma ATV/UTV 24G4022 1051×32 Gates 24G4022 Polaris, Kazuma ATV/UTV LEOPARD / DINLI UA401 948×37 Ultimax UA401 Stels LEOPARD, Arctic Cat, Suzuki, CF MOTO (500-600cc) UA445 948×37 Ultimax UA445 Stels Leopard, Arctic Cat (1000cc), CFMOTO X8, U8, Z8 UA437 957×37 Ultimax UA437 Stels ATV 700/800 DINLI, CFMOTO UTV 500, Suzuki, Arctic Cat HPX2234 947×35,7 Dayco HPX2234 Stels Dinli, Leopard, Arctic Cat, Suzuki (700cc) ATV XTX2234 939×36,7 Dayco XTX2234 Stels Dinli, Leopard, Arctic Cat, Suzuki (700cc), CFMOTO X8, U8, Z8 ATV/UTV (усиленный) 40G3569 937×36 Gates 40G3569 Stels Leopard, Dinli, CF-MOTO 800 ATV/UTV 43G3596 943×37 Gates 43G3596 Stels Dinli, Suzuki, Arctic Cat (700cc) ATV/UTV 46G3596 943×37 Gates 46G3596 Stels Dinli, Arctic Cat (1000cc) ATV/UTV GUEPARD / DOMINATOR / HiSun 800 UA446 975×33 Ultimax UA446 Stels Guepard, DOMINATOR, Can-Am UA419 983×33 Ultimax UA419 Stels UTV 800 HiSun, Can-Am (500-800cc), Sym HPX2236 982×32,5 Dayco HPX2236 BRP,CanAm, Stels Guepard, Dominator ATV/UTV XTX2236 982×33,5 Dayco XTX2236 BRP,CanAm, Stels Guepard, Dominator ATV/UTV (усиленный) 30C3750 981×33 Gates 30C3750 Bombardier, Stels Guepard, Dominator ATV/UTV (усиленный) 30G3750 981×33 Gates 30G3750 Bombardier, Stels Guepard, Dominator ATV/UTV HiSun 400/450 UA417 876×30 Ultimax UA417 Yamaha, Stels ATV/UTV HiSun (400-450cc) XTX2240 852×30 Dayco XTX2240 Kawasaki, HiSun ATV/UTV 400/450 (усиленный) 19C3218 848×30 Gates 19C3218 Stels 400/450 HiSun, Kawasaki ATV/UTV (усиленный) 19G3218 848×30 Gates 19G3218 Stels 400/450 HiSun, Kawasaki ATV/UTV

1. Attach the Timing Light to the spark plug high ten-

sion lead; then remove the timing inspection plug

from the left-side crankcase cover.

2. Start the engine and using the RPM function on

the speedometer/tachometer, run at 1500 RPM;

ignition timing should be 10° BTDC.

3. Install the timing inspection plug.

If ignition timing cannot be verified, the rotor may be

damaged, the key may be sheared, the trigger coil

bracket may be bent or damaged, or the CDI unit/ECU

may be faulty.

ECU Error Codes

(550/700 cc)

If a sensor fails or an out-of-tolerance signal is sensed

by the ECU, an error code will be generated by the

ECU. This will result in the analog needle swinging

full scale. The EFI icon will flash.

To read the error code(s), use the following procedure.

1. Make sure the ignition switch is in the OFF posi-

tion; then remove the seats.

2. Locate the diagnostic plug next to the PDM; then

remove the black rubber cap.

3. Connect the Test Plug from Test Plug/Error Code

List to the diagnostic plug.

4. Turn the ignition switch to the ON position and

read the error code on the LCD. Refer to the fol-

lowing ECU Error Code List to identify the spe-

cific problem area.

ECU Error Code List

NOTE: Each of the following numerical codes will

have a two-letter prefix. A prefix of AC (Active

Code) or SC (Stored Code) will be displayed.

Always correct and clear Active Codes before

clearing Stored Codes.

Back

ATV-112

Back to TOC

• 00 = No Fault Detected (active code only)

• 12 = CKP (Crankshaft Position) Sensor*

• 13 = MAP (Manifold Absolute Pressure) Sensor

• 14 = TPS (Throttle Position Sensor)

• 15 = ECT (Engine Coolant Temperature) Sensor

• 16 = Speed Sensor

• 21 = IAT (Inlet Air Temperature) Sensor

• 23 = Tilt Sensor*

• 24 = Ignition Coil #1*

• 32 = Fuel Injector #1*

• 40 = ISC (Idle Speed Control) Valve

• 41 = Fuel Pump Relay*

• 60 = Cooling Fan Relay

• 95 = Sensor Power

• 96 = Incorrect ECU*

• 97 = ECU Memory Power (constant battery

power)

• 99 = Start/Run Not Possible (active code only)

*Will initiate code 99.

To clear the error code(s), use the following procedure.

NOTE: The ignition switch should be in the OFF

position.

1. With the test plug connected to the diagnostic plug

and the drive select switch in the 4WD position,

hold the reverse override switch down and turn the

ignition switch to the ON position.

2. After ten seconds, release the reverse override

switch and turn the ignition switch to the OFF

position; then turn the ignition switch to the ON

position. The display should read AC00 (no fault

detected).

NOTE: If the LCD still displays an error code,

continue troubleshooting the appropriate compo-

nent.

3. Disconnect the test plug; then install the black rub-

ber cap.

4. Install the seats making sure they lock securely in

place.

Tilt Sensor

(550/700 cc)

! WARNING

Incorrect installation of the tilt sensor could cause

sudden loss of engine power which could result in

loss of vehicle control resulting in injury or death.

! CAUTION

Do not drop the tilt sensor as shock can damage the

internal mechanism.

Back to Section TOC

5

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5-17

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Related Manuals for Arctic Cat Prowler 700i HDX 2015

Summary of Contents for Arctic Cat Prowler 700i HDX 2015

  • Page 1
    Side-by-Side user manual…
  • Page 2
    All rights reserved, especially the right of reproduction, distribution and translation. This document may not be reproduced in any form (printing, photocopy, microfilm, or any other form) in whole or in part without the express written permission of Arctic Cat GmbH or processed, duplicated or distributed using electronic sys- tems.
  • Page 3
    This user manual has been prepared by the Service department of Arctic Cat. Parts and accessories In the event of needing spare parts, oils or accessories for your Arctic Cat vehicle, make sure that you only use ORIGINAL PARTS, OILS, AND ACCESSORIES FROM ARCTIC CAT.
  • Page 4: Table Of Contents

    Contents Safety instructions ……… . .8 Intended use.

  • Page 5
    Contents 4.16 Gauge ……….. . 33 4.16.1 Gauge (Wildcat) .
  • Page 6
    Contents 6.10 Driving with trailer (Prowler) ……..64 6.11 Filling up .
  • Page 7
    Contents Care ……….. . . 82 Cleaning the vehicle .
  • Page 8: Safety Instructions

    Different warning sign, which contain important safety information, are attached to the vehicle. Every person using the vehicle shall have read and understood this safety information before driving. If a warning sign comes off or becomes illegible, please contact your Arctic Cat dealer to obtain replacement. Intended use The vehicle has been designed and constructed for the common stresses in road traf- fic and off-road applications.

  • Page 9: General Safety Instructions

    Safety instructions 1 Always observe this warnings and proceed particularly attentively and carefully when performing the work steps marked in this way. NOTE This symbol indicates explanations whose compliance contributes to a bet- ter understanding and ideal operation of the vehicle. General safety instructions Observe that this vehicle IS NOT A TOY AND ITS OPERATION BEARS RISKS.

  • Page 10: Safety Instructions For Driving

    ● Do not change the vehicle with improper additions or by the improper use of accessories. ● Only install and use original parts or original accessories of Arctic Cat. If you have any questions, please contact an authorised Arctic Cat dealer.

  • Page 11
    ● Inspect the cooler and the engine periodically for soiling, and carefully clean the cooler and the engine if necessary. ● Have a specialist repair shop authorised by Arctic Cat remove heavy soiling of the cooler. Notes on uphill driving: ●…
  • Page 12: View Of The Vehicle

    2 View of the vehicle View of the vehicle Wildcat, Wildcat Sport, Wildcat Trail 2.1.1 Front left-hand view of the vehicle Fig. 1 Safety belt Indicator (Sport and Trail) Battery (underneath cover) Head light (Sport and Trail) (Wildcat) 10 Indicator (Wildcat) Safety belt 11 Head light (Wildcat) Taillight / brake light lamp…

  • Page 13: Cockpit

    View of the vehicle 2 2.1.2 Cockpit Fig. 2 Warning light switch 10 Drive selector switch Lever for steering wheel 11 Accelerator pedal adjustment 12 Brake pedal Ignition switch 13 Emergency brake (depending on Gauge homologation and vehicle type) Glove compartment 14 Horn button Indicator pilot lamp 15 Indicator switch…

  • Page 14: Prowler

    2 View of the vehicle Prowler 2.2.1 Front left-hand view of the vehicle Fig. 3 Safety belt Fuses (underneath the seat) Tailgate lock Hitch Storage compartment Headlight Lateral rest 10 Storage compartment Side safety strap (underneath cover) Battery (underneath the seat)

  • Page 15: Rear Right-Hand View Of The Vehicle

    View of the vehicle 2 2.2.2 Rear right-hand view of the vehicle Fig. 4 Taillight / brake light lamp Storage compartment Grab Hitch Side safety strap Cargo box On-board tool kit Rest (underneath the seat) Safety belt…

  • Page 16: Cockpit

    2 View of the vehicle 2.2.3 Cockpit Fig. 5 Gauge Drive selector switch Shift lever Accelerator pedal Shelf Ignition switch Glove compartment 10 Brake pedal 12 V socket 11 Buckle for side safety strap Reverse override switch 12 Lever for steering wheel adjustment (depending on homologation)

  • Page 17: Warning Signs

    Every person using the vehicle shall have read and understood this informa- tion before driving. The warning signs are considered permanent components of the vehicle. If a warning sign comes off or becomes illegible, you can obtain replacement at the Arctic Cat dealer. NOTE The arrangement and the contents of the signs may differ from the rep- resentation in this user manual.

  • Page 18: Wildcat

    2 View of the vehicle 2.3.1 Wildcat Fig. 6…

  • Page 19
    View of the vehicle 2 Fig. 7…
  • Page 20: Prowler Xt

    2 View of the vehicle 2.3.2 Prowler XT Fig. 8…

  • Page 21
    View of the vehicle 2 Fig. 9…
  • Page 22: Prowler Hdx

    2 View of the vehicle 2.3.3 Prowler HDX Fig. 10…

  • Page 23
    View of the vehicle 2 Fig. 11…
  • Page 24: Serial Numbers

    If an entire engine has to be replaced, the Arctic Cat dealer shall notify regarding an update of the registration information.

  • Page 25: Controls 4

    Controls 4 Controls Ignition switch The ignition switch has three switch posi- tions: – OFF (1): All electrical circuits except for the accessory connection are switched Fig. 12 off. The engine cannot be started. You can remove the ignition key in this switch position.

  • Page 26: Gear Shift

    4 Controls Gear shift 4.3.1 Gear shift The vehicle has an automatic gearbox with five gear positions: – L (LOW): forward gear for off-road driv- – H (HIGH): forward gear for driving on the road – N (NEUTRAL): idle – R (REVERSE): reverse gear –…

  • Page 27: Foot Brake

    Controls 4 ATTENTION Only connect or disconnect the front differential when the vehicle is stationary. NOTE Use 4WD Lock only briefly to free yourself from a critical driving situation (e.g. when driving out of a mud hole). NOTE Two-wheel drive is recommended for driving on flat, dry, and hard ground, four-wheel drive for difficult conditions (e.g.

  • Page 28: Safety Belt Icon

    4 Controls Safety belt icon WARNING The safety belt icon does not indicate that the safety belt is fas- tened. Before driving, always fas- ten the safety belt. Fig. 17 After switching on the ignition, the safety belt icon lights up in the gauge display for approx.

  • Page 29: Reverse Override Switch

    Controls 4 4.10 Reverse override switch WARNING Only actuate the reverse override switch in idling position (prior to acceler- ating). NOTE The reverse override switch is installed in the centre console at the gear lever. The vehicle has a speed limit for reverse. After pressing the reverse override switch it is possible to drive at a higher speed in reverse.

  • Page 30: Removing And Installing Seats

    4 Controls 4.12 Removing and installing seats WARNING Before driving, make sure that all seats are locked correctly. Using the seat release, you can unlock the seats for removal. 4.12.1 Removing and installing seats (Wildcat) NOTE Both seats are removed and installed in the same way. Removing the seat: Pull seat release on the rear side of the seat upwards.

  • Page 31: Safety Belt

    Controls 4 4.13 Safety belt WARNING A passenger shall be able to hold on to the handles when he/she has placed his/her feet flat on the floor and, while sitting on the seat, is leaning his/her back on the backrest. WARNING Before driving, the driver and the passenger must fasten the safety belt.

  • Page 32: Side Safety Straps (Prowler)

    Do not drive when an error code of the power steering appears in the gauge display. NOTE When the error code appears in the gauge display, switch the ignition off and on again. If the error code still appears thereafter, have the error rectified at an authorised Arctic Cat specialist repair shop.

  • Page 33: Gauge

    Controls 4 4.16 Gauge NOTE The «M» (Mode) and «S» (Set) buttons can be arranged in a different way as shown in here. 4.16.1 Gauge (Wildcat) NOTE When the ignition key is moved to the ON position, all segments of the gauge display will light up for approx.

  • Page 34
    NOTE Have an EFI error rectified as soon as possible at an authorised Arctic Cat specialist repair shop. Power steering indicator (EPS) (7) – In the event of an error of the power steering, the text «EPS»…
  • Page 35
    Controls 4 Toggling between the display modes: Press «M» button (10) repeatedly until the desired mode is displayed. Around 2 seconds after releasing the «M» button, the digital display will return to the full- screen display. Odometer / trip meter (11) – The odometer measures the total number of kilometres driven with this vehicle and cannot be reset.
  • Page 36: Gauge (Wildcat Sport/Trail)

    4 Controls Drive indicator (16) – The 4WD indicator appears when the four-wheel drive or the differential lock is activated. Speed/revolutions indicator (17) – Depending on the selected function, it will dis- play the approximate vehicle speed (km/h or MPH) or the engine speed. 4.16.2 Gauge (Wildcat Sport/Trail) The sections that follow describe the display fields and function buttons of the gauge.

  • Page 37
    Controls 4 For setting the minute display: press centre button (4) again. Then, press left- hand button (6) or right-hand button (5) repeatedly until the desired number of minutes is displayed. To return to the normal gauge function: press centre button (4) again. Display of operating hours counter / odometer / trip meter / speed / revolutions / time of day (2) –…
  • Page 38
    4 Controls Display of coolant temperature / battery voltage / fill level of fuel tank (3) – Depending on the selected function, it will display the coolant temperature, the battery voltage, the intake air temperature, or the fill level of the fuel tank. Toggling between the display modes: Press and release right-hand button (5) repeatedly until the desired mode is dis- played.
  • Page 39: Gauge (Prowler Xt)

    NOTE Have an EFI error rectified as soon as possible at an authorised Arctic Cat specialist repair shop. Safety belt indicator (11) – The safety belt icon appears for approx. 8 seconds after switching on the ignition.

  • Page 40
    4 Controls Drive indicator (2) – The 4WD indicator appears when the four-wheel drive or the differential lock is activated. Clock / operating hours counter (3) – The clock is set to the 12 hour format. The operating hours counter displays the total operating hours of the vehicle and cannot be reset to zero.
  • Page 41
    Controls 4 Level indicator (6) – Displays the approximate fill level of the fuel tank. NOTE If the bottom segment is flashing, there will still be 3.5 l (0.92 U.S. gal.) of fuel in the tank. «M» (Mode) button (7) – Using the «M» (Mode) button, you can toggle between the following modes of the display: –…
  • Page 42
    NOTE Have EFI errors rectified as soon as possible at an authorised Arctic Cat specialist repair shop. Battery status indicator – In the event of a voltage drop (< 9 V) or an overvoltage (>…
  • Page 43: Gauge (Prowler Hdx)

    Controls 4 4.16.4 Gauge (Prowler HDX) NOTE When the ignition key is moved to the ON position, all segments of the gauge display will light up for approx. 2 seconds. Fig. 23 The gauge has the following display fields and function buttons: Speedometer / tachometer (1) –…

  • Page 44
    4 Controls «M» (Mode) button (6) – Using the «M» button, you can toggle between the following modes of the display: – Speedometer – Distance – Time of day Toggling between the display modes: Press and release «M» button (6) repeatedly until the desired mode is displayed. Around 2 seconds after releasing the «M»…
  • Page 45
    Controls 4 Clock / operating hours counter (10) – The clock is set to the 12 hour format. The operating hours counter displays the total operating hours of the vehicle and cannot be reset to zero. Setting the clock: Turn ignition key into position RUN and press «M» button (6) repeatedly until the clock or the operating hours counter (10) is displayed.
  • Page 46: Cargo Box

    (e.g. P012 or C1234). After rectifying the displayed error, the error display will automatically go out. NOTE Have ECM errors rectified as soon as possible at an authorised Arctic Cat specialist repair shop. 4.17 Cargo box 4.17.1 Cargo box (Prowler XT)

  • Page 47: Cargo Box (Prowler Hdx)

    Controls 4 Swivelling cargo box upwards: Move lever (1) forwards. Lift and swivel cargo box (2). CAUTION Swivel cargo box downwards carefully. Finger, hands, or arms may get crushed. Swivelling cargo box downwards: Press front end of the cargo box (2) firmly downwards until the cargo box (2) engages in the lock with a clicking sound.

  • Page 48
    4 Controls Fig. 28 Converting cargo box into cargo platform: Unscrew one screw (1) on the left-hand-side and one on the right-hand side. Swivel cargo box upwards. Loosen two screws (6) on the left-hand-side and two on the right-hand side and pull them out as far as necessary to remove the side panels.
  • Page 49: Storage Space / Tool Kit

    Controls 4 Tighten four nuts (7) applying a tightening torque of 11 Nm. 10. Lower the cargo platform. 11. Fasten each of the two retaining ropes with two screws (3) in accordance with the removal notes. Tighten screws applying a tightening torque of 18 Nm. Cargo securing ATTENTION To prevent damages on the cargo box when using lashing straps with a ten-…

  • Page 50: First Putting Into Operation

    Entering the registration PIN (POSR) NOTE This Arctic Cat vehicle is equipped with a software which requires entering a 6 digit PIN (Personal Identification Number) at the time of registration. As soon as the vehicle has been completely registered (the vehicle check list must be completed online), the 6 digit PIN is sent via e-mail.

  • Page 51
    First putting into operation 5 Entering 6 digit PIN: Press «M» (1) and «S» (2) buttons and keep pressed. Turn ignition key to ON position. Keep «M» (1) and «S» (2) buttons pressed until the gauge display shows «Pin». Release «M» button. Fig.
  • Page 52: Running In The Engine

    5 First putting into operation Running in the engine The engine needs a running in period. Handling the vehicle correctly during this run- ning in period will help to maximise the service life and the performance of the engine. Notes on the running in period: ●…

  • Page 53: Driving 6

    Driving 6 Driving NOTE Observe the national laws and regulations with regard to transport and traffic. Check list CAUTION Before every ride, check the condition of the vehicle and the operational safety with the aid of the following check list. Only use the vehicle in perfect technical condition.

  • Page 54: Starting / Switching Off The Engine

    6 Driving Starting / switching off the engine WARNING Provide adequate ventilation when operating the engine in closed rooms. Do not start or run the engine in a closed room without a suitable extraction sys- tem. ATTENTION Do not actuate the starter motor longer than 8 seconds per starting process. If more starting processes are necessary: wait 15 seconds in between the starting processes to allow the starter motor to cool down.

  • Page 55: Starting The Engine (Prowler Hdx)

    Driving 6 6.2.3 Starting the engine (Prowler HDX) ATTENTION Do not accelerate while the transmission is in park position. Otherwise, the drive belt will be damaged. Fasten the safety belt. Close the side safety straps. Move gear lever into park position. Press the brake pedal.

  • Page 56: Driving

    Excessive braking at high speeds leads to overheating of the brake fluid and premature wear of the brake pads. Thus, the brakes may fail unexpectedly. WARNING Only use brake fluid authorised by Arctic Cat. Never mix different brands or types of brake fluids. ATTENTION Do not drive with activated brake.

  • Page 57: Driving Manoeuvres

    Driving 6 Driving manoeuvres 6.7.1 Driving around corners WARNING In case of too intense or too fast steering manoeuvres, in case of inadequate speed or aggressive driving, you may loose control of the vehicle. The vehi- cle may roll over. Always adapt the speed to the ambient conditions and the ground.

  • Page 58: Driving Over Obstacles

    6 Driving 6.7.3 Driving over obstacles WARNING A collision with hidden obstacles may lead to serious injuries or death. Reduce the speed and drive particularly carefully on unknown terrain. NOTE If your are not certain whether your skills suffice to be able to drive safely over an obstacle: drive around the obstacle.

  • Page 59: Skidding And Slipping

    ATTENTION If water that is deeper than allowed has been crossed, the vehicle shall be checked in an authorised Arctic Cat specialist repair shop. NOTE Engine damage caused by penetrating water are not covered by the Arctic Cat warranty.

  • Page 60: Driving In Cold Weather

    6 Driving 6.7.7 Driving in cold weather WARNING Never drive on frozen lakes or rivers. WARNING Drive slowly and particularly carefully on surfaces covered with snow or ice. Be prepared that ground conditions may change quickly. ● Train driving on open snow and ice covered terrain before driving on snow or ice covered roads.

  • Page 61: Adjusting The Shock Absorbers

    Driving 6 Adjusting the shock absorbers WARNING The suspension shall be adjusted identically on both sides of an axle. 6.8.1 Adjusting the shock absorbers (Wildcat/Wildcat Sport) ATTENTION The shock absorbers are filled with compressed gas. Do not remove the valve caps because otherwise the compressed gas will escape. The shock absorbers could be damaged.

  • Page 62: Adjusting The Shock Absorbers (Prowler Xt/Wildcat Trail)

    6 Driving 6.8.2 Adjusting the shock absorbers (Prowler XT/Wildcat Trail) NOTE The spring pre-tensioning of the shock absorbers can be adjusted continu- ously to adapt the suspension to the different terrain and load conditions. Adjusting the spring pre-tensioning: Remove dirt and deposits from the sleeve (2).

  • Page 63
    Driving 6 Adjusting the spring pre-tensioning (front shock absorbers): Remove dirt and deposits from the sleeve (1). Relieve shock absorber. Using a suitable hook wrench from the on-board tool kit, turn sleeve (1) to the desired position (refer to the following table). Position Spring force Adjustment…
  • Page 64: Loading The Vehicle

    6 Driving Cargo load Air pressure 0-110 kg 1 bar 110-220 kg 4 bar 220-340 kg 6 bar 340-450 kg 10 bar NOTE The shock absorbers can loose air pressure over time. Check the air pres- sure periodically. Loading the vehicle WARNING Observe the load capacity restrictions specified for the vehicle in the CoC.

  • Page 65: Filling Up

    WARNING Do not continue driving if you detect damages. Take the vehicle to an author- ised Arctic Cat specialist repair shop and have the damages repaired. NOTE The ignition and the function of fuel pump are interrupted by a tilt sensor as soon as the vehicle is inclined further than 60°…

  • Page 66: Maintenance

    Arctic Cat specialist repair shop. ● Only use operating materials authorised by Arctic Cat. ● Do not drive the vehicle if strange noises, vibrations or malfunctions occur. Have the vehicle checked in an authorised Arctic Cat specialist repair shop. Checking the coolant level WARNING Never check the coolant level while the engine is hot or the cooling system is pressurised.

  • Page 67: Checking The Coolant Level (Prowler)

    MIN and MAX marks. NOTE If the coolant level is too low, do not drive the vehicle any more, and have the coolant refilled at an authorised Arctic Cat specialist repair shop. Close the bonnet. Checking the engine oil level NOTE Park the vehicle on level ground to check the oil level.

  • Page 68: Checking The Engine Oil Level (Wildcat Trail)

    7 Maintenance ATTENTION Only use fully synthetic engine oils from Arctic Cat. If the engine oil level is too low: refill engine oil. When doing this, observe the maximum fill level. Screw oil dipstick (1) into the engine housing. 7.3.2…

  • Page 69: Checking The Engine Oil Level (Prowler Hdx)

    Unscrew oil dipstick (1) from the engine housing and read engine oil level on the oil dipstick (1). ATTENTION Only use fully synthetic engine oils from Arctic Cat. If the engine oil level is too low: refill engine oil as follows. – Remove seat (refer to section 4.12.2).

  • Page 70: Checking Shock Absorbers For Perfect Condition

    Check all shock absorbers once a week for the following items: – Excessive liquid loss – Cracks or fractures in the housing – Bent shock absorber rod If a defect is detected, have an authorised Arctic Cat specialist repair shop replace the shock absorber. Checking the brake fluid level WARNING…

  • Page 71: Checking Protective Rubber Sleeves For Perfect Condition

    – Wear – Cracks – Perforation NOTE If defects are detected, have an authorised Arctic Cat specialist repair shop replace the corresponding protective rubber sleeve. Battery The battery is installed in a compartment between the seats (Wildcat), underneath the passenger seat (Wildcat Sport/Trail), or in a compartment underneath the driver seat (Prowler).

  • Page 72: Trickle Charging

    7 Maintenance 7.8.1 Trickle charging ATTENTION When using a charger without charge conservation function, battery damage may occur after reaching the maximum charge capacity due to overcharge. NOTE A trickle charging is required for all batteries that are not used for longer than 2 weeks or are discharged.

  • Page 73: Charging

    When the battery is charged, disconnect the charger first from the vehicle and then from the mains socket. NOTE If the battery does not reach its full performance after the charging process, have the battery checked at an authorised Arctic Cat specialist repair shop. 7.8.3 Jump start WARNING…

  • Page 74
    7 Maintenance WARNING Leaking or bulging batteries indicate a frozen battery or a short circuit. When detecting the condition of a battery, under no circumstance perform an exter- nal start of the vehicle nor charge the battery. There is the risk of explosion. Check the battery for the following errors: –…
  • Page 75: Tyres

    Maintenance 7 WARNING Risk of explosion. Never connect both battery terminals of the battery to be bridged. 10. Connect one clamp of the red jumper cable to the positive terminal of the recipient battery. Ensure that the second clamp of the red jumper cable does not have con- tact to any metal.

  • Page 76: Checking Tyre Condition

    7 Maintenance Before driving, check the tyre pressure (e.g. with the tyre pressure gauge of the on- board tool kit): Unscrew dust cap from the valve. Check tyre pressure (on cold tyre) (refer to the following table). If the tyre pressure does not coincide with the specification, correct tyre pressure. Screw dust cap onto the valve.

  • Page 77: Cleaning The Air Filter (Wildcat)

    7.10 Cleaning the air filter (Wildcat) NOTE The air filter is cleaned by the Arctic Cat specialist repair shop. If the vehicle is operated in air with high dust content, contact the Arctic Cat specialist repair shop at shorter intervals.

  • Page 78: Replacing Headlight Lamp (Wildcat)

    7 Maintenance 7.11.1 Replacing headlight lamp (Wildcat) Replace headlight lamp as follows: Unscrew two screws on headlight housing. Open the headlight housing and take reflector insert out. Replace defective light bulb. Insert reflector insert into the headlight housing. Close headlight housing and fasten with two screws. 7.11.2 Replacing headlight lamp (Wildcat Sport/Trail) Replace headlight lamp as follows: Remove connector from light bulb socket.

  • Page 79: Replacing Front Indicator Lamp (Wildcat)

    Maintenance 7 7.11.5 Replacing front indicator lamp (Wildcat) Replace indicator lamp as follows: Unscrew screw on lamp glass and remove lamp glass. Pull defective light bulb out of lamp socket. Insert new light bulb into the lamp socket. Position lamp glass and fasten with screw. 7.11.6 Replacing taillight (Wildcat) NOTE LEDs cannot be replaced.

  • Page 80: Replacing Fuses

    ● If necessary, clean the belts and the roll-up device. Do not oil nor lubricate the roll- up device. ● Check if the belt buckles can be fastened and released. WARNING If a defect is detected, have an authorised Arctic Cat specialist repair shop repair the belt system.

  • Page 81: Checking The Doors / Side Safety Straps

    ● Check if the door locks can be opened. ● Check nets for fine tears or ragged ends. WARNING If a defect is detected, have an authorised Arctic Cat specialist repair shop repair the doors / nets. 7.14.2 Checking the side safety straps (Prowler) ●…

  • Page 82: Care

    ATTENTION Do not use any high-pressure cleaner to clean the vehicle. ATTENTION Heavy soiling of the cooler shall be removed by an authorised Arctic Cat specialist repair shop. NOTE Clean the vehicle periodically. In this way, you will retain the value and the appearance for a long time.

  • Page 83: Shutting Down The Vehicle

    Shutting down the vehicle ATTENTION Before shutting the vehicle down for a longer period of time, it shall be main- tained correctly at an authorised Arctic Cat specialist repair shop. Shut down the vehicle as follows: Clean vehicle (refer to section 8.1).

  • Page 84: Technical Data

    Request current data from the manufacturer or take them from the registration documents. Technical data Prowler HDX Prowler Wildcat 1000 XT 1000i Arctic Cat vehicle range Displacement Engine type Cylinders / valves / Four stroke / Two cylinder Two cylinder injection…

  • Page 85
    Technical data 9 Technical data Prowler HDX Prowler Wildcat 1000 XT 1000i Arctic Cat vehicle range Total height in/cm 79/200.6 79/200.6 65.8/167 Wheelbase in/cm 85/215.9 75/190.5 95/241.3 Max. cargo load — lbs/kg n.a. n.a. n.a. front rack Max. cargo load — lbs/kg 1000/454.5…
  • Page 86
    9 Technical data Technical data Wildcat X Wildcat Ltd Arctic Cat vehicle range Displacement Engine type Cylinders / valves / Two cylinder V-engine / Two cylinder V-engine / injection liquid cooled liquid cooled Gauge Digital/analogue Analogue/digital Analogue/digital Odometer Digital/analogue Digital…
  • Page 87
    Technical data 9 Technical data Wildcat X Wildcat Ltd Arctic Cat vehicle range Coolant capacity l/US qt 3.3/3.5 3.3/3.5 Rear axle oil capacity ml/fl oz 175/5.9 175/5.9 Petrol (recommended) EU unleaded, …octane 95 octane 95 octane Engine oil Arctic Cat ACX…
  • Page 88
    9 Technical data Technical data Wildcat Trail Wildcat Sport Arctic Cat vehicle range Displacement Engine type Cylinders / valves / Four stroke / Four stroke / injection liquid cooled liquid cooled Gauge Digital/analogue Digital Digital Odometer Digital/analogue Digital Digital Tank capacity gal/l 7.4/28…
  • Page 89
    Technical data 9 Technical data Wildcat Trail Wildcat Sport Arctic Cat vehicle range Coolant capacity l/US qt 3.1/3.2 3.1/3.2 Rear axle oil capacity ml/fl oz 1200/40.6 1200/40.6 Petrol (recommended) EU unleaded, …octane 95 octane 95 octane Engine oil Arctic Cat ACX…
  • Page 90: 10 Registration Information Form

    Arctic Cat to notify the owner in the case of important safety information. Therefore, we ask you to immediately inform Arctic Cat if you move or if you sell the vehicle to another person. Please complete this form and send it to: Arctic Cat GmbH Industriestraße 43…

  • Page 91: Index 11

    Index 11 Index Accelerator pedal Engine … . 29 Accident Running in ….65 .

  • Page 92
    11 Index Ignition switch Shifting gears ….25 ….55 Indicator lamp Shock absorbers .
  • Page 93
    WARNING Improper use of the vehicle may lead to serious injuries or death. Always wear protective equipment Do not drive under the and a helmet that complies with the influence of alcohol legal regulations. or drugs. Never: ● Drive without sufficient training nor without briefing. ●…

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FOREWORD

This Arctic Cat Service Manual contains service, maintenance, and troubleshooting information for certain 2007

Arctic Cat ATV models (see cover). The complete manual is designed to aid service personnel in service-oriented

applications.

Arctic Cat offers additional publications (when they become available) to aid in servicing other ATV models. To

service models not included in this manual, please refer to the following publications:

2007 Y-12 Service Manual

2007 DVX/Utility 250 Service Manual

2007 DVX 400 Service Manual

2007 Prowler Service Manual

2007 700 Diesel Service Manual

This manual is divided into sections. Each section covers a specific ATV component or system and, in addition to

the standard service procedures, includes disassembling, inspecting, and assembling instructions. When using this

manual as a guide, the technician should use discretion as to how much disassembly is needed to correct any given

condition.

The service technician should become familiar with the operation and construction of each component or system

by carefully studying the complete manual. This manual will assist the service technician in becoming more

aware of and efficient with servicing procedures. Such efficiency not only helps build consumer confidence but

also saves time and labor.

All Arctic Cat ATV publications and decals display the words Warning, Caution, Note, and At This Point to

emphasize important information. The symbol ! WARNING identifies personal safety-related information.

Be sure to follow the directive because it deals with the possibility of severe personal injury or even death. The

symbol ! CAUTION identifies unsafe practices which may result in ATV-related damage. Follow the direc-

tive because it deals with the possibility of damaging part or parts of the ATV. The symbol NOTE: identifies

supplementary information worthy of particular attention. The symbol AT THIS POINT directs the

technician to certain and specific procedures to promote efficiency and to improve clarity.

At the time of publication, all information, photographs, and illustrations were technically correct. Some photo-

graphs used in this manual are used for clarity purposes only and are not designed to depict actual conditions.

Because Arctic Cat Inc. constantly refines and improves its products, no retroactive obligation is incurred.

All materials and specifications are subject to change without notice.

Keep this manual accessible in the shop area for reference.

Product Service and

Warranty Department

Arctic Cat Inc.

© 2006 Arctic Cat Inc. August 2006

®™ Trademarks of Arctic Cat Inc., Thief River Falls, MN 56701

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TABLE OF CONTENTS

Foreword

Click on the red text to go.

Section

1. General Information

2. Periodic Maintenance/Tune-Up

3. Engine/Transmission

4. Fuel/Lubrication/Cooling

5. Electrical System

6. Drive System

7. Suspension

8. Steering/Frame

9. Controls/Indicators

10. Aids for Maintenance

11. Troubleshooting

1

2

3

4

5

6

7

8

9

10

11

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1-1

1

SECTION 1 — GENERAL INFORMATION

TABLE OF

CONTENTS

General Specifications

(400/400 TRV — Automatic Transmission)……..….. 1-2

General Specifications

(400 — Manual Transmission)…………..………….….. 1-3

General Specifications

(500 — Manual Transmission)…………..………….….. 1-4

General Specifications

(500 — Automatic Transmission).…………….……….. 1-5

General Specifications

(650 H1/650 H1 TBX/650 H1 TRV)………..……….. 1-6

General Specifications

(700 EFI) ……………………….………….…………….….. 1-7

Break-In Procedure …..……………..…………….……….. 1-8

Gasoline — Oil — Lubricant …………….…………….…….. 1-8

Genuine Parts …………………..…………….……………... 1-9

Preparation For Storage……..…………….……………... 1-9

Preparation After Storage………………….……………. 1-10

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1-2

General Specifications*

(400/400 TRV — Automatic

Transmission)

* Specifications subject to change without notice.

** One inch below filler plug threads.

*** At the oil level plug threads.

CARBURETOR

Type Keihin CVK34

Main Jet 135

Slow Jet 38

Pilot Screw Setting (turns) 1 3/4

Jet Needle NAZG

Idle RPM

(engine warm)

1250-1350

Starter Jet 75

Float Arm Height 17 mm (0.7 in.)

Throttle Cable Free-Play (at lever) 3-6 mm (1/8-1/4 in.)

ELECTRICAL

Ignition Timing 10° BTDC @ 1500 RPM

Spark Plug Type NGK CR7E

Spark Plug Gap 0.7-0.8 mm (0.028-0.032

in.)

Spark Plug Cap 8000-12,000 ohms

Ignition Coil

Resistance

(primary)

(secondary)

Less than 1 ohm

(terminal to ground)

5200-7800 ohms

(high tension — plug cap

removed — to ground)

Ignition Coil Peak

Voltage

(primary/

CDI)

250-375 DC volts

(terminal to ground)

Magneto Coil

Resistance

(trigger)

(source)

(charging)

160-240 ohms

(green to blue)

Less than 1 ohm

(yellow to white)

Less than 1 ohm

(black to black)

Magneto Coil Peak

Voltage

(trigger)

(source)

5.04-7.56 volts

(green to blue)

0.7-1.05 volts

(yellow to white)

Stator Coil Output (no load) 60 AC volts @ 5000 RPM

(black to black #1)

(black to black #2)

Magneto Output (approx) 220W @ 5000 RPM

CHASSIS

Brake Type Hydraulic w/Brake Lever

Lock and Auxiliary Brake

Tire Size Front — 25 x 8-12

Rear — 25 x 10-12

Tire Inflation Pressure 0.35 kg/cm² (5 psi)

MISCELLANY

Gas Tank Capacity (rated) 24.6 L (6.5 U.S. gal.)

20.8 L (5.5 U.S. gal.) — TRV

Rear Drive Capacity 250 ml (8.5 fl oz)**

Differential Capacity (front 4×4) 275 ml (9.3 fl oz)***

Engine Oil Capacity 3.08 L (3.25 U.S. qt)

Gasoline (recommended) 87 Octane Regular Unleaded

Engine Oil (recommended) SAE 5W-30

Differential/Rear Drive Lubricant SAE Approved

80W-90 Hypoid

Drive Belt Width 28.5 mm (1.12 in.)

Brake Fluid DOT 4

Taillight/Brakelight 12V/8W/27W

Headlight 12V/37W (2)

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1-3

1

General Specifications*

(400 — Manual Transmission)

* Specifications subject to change without notice.

** One inch below filler plug threads.

*** At the oil level plug threads.

CARBURETOR

Type Keihin CVK34

Main Jet 135

Slow Jet 38

Pilot Screw Setting (turns) 1 3/4

Jet Needle NAZG

Idle RPM

(engine warm)

1250-1350

Starter Jet 75

Float Arm Height 17 mm (0.7 in.)

Throttle Cable Free-Play

(at lever)

3-6 mm (1/8-1/4 in.)

ELECTRICAL

Ignition Timing 10° BTDC @ 1500 RPM

Spark Plug Type NGK CR7E

Spark Plug Gap 0.7-0.8 mm (0.028-0.032 in.)

Spark Plug Cap 8000-12,000 ohms

Ignition Coil

Resistance

(primary)

(secondary)

Less than 1 ohm

(terminal to ground)

5200-7800 ohms

(high tension — plug cap

removed — to ground)

Ignition Coil

Peak Voltage

(primary/

CDI)

250-375 DC volts

(terminal to ground)

Magneto Coil

Resistance

(trigger)

(source)

(charging)

160-240 ohms

(green to blue)

Less than 1 ohm

(yellow to white)

Less than 1 ohm

(black to black)

Magneto Coil

Peak Voltage

(trigger)

(source)

5.04-7.56 volts

(green to blue)

0.7-1.05 volts

(yellow to white)

Stator Coil Out-

put

(no load) 60 AC volts @ 5000 RPM

(black to black #1)

(black to black #2)

Magneto Output (approx) 220 W @ 5000 RPM

CHASSIS

Brake Type Hydraulic w/Brake Lever Lock

and Auxiliary Brake

Tire Size Front — 25 x 8-12

Rear — 25 x 10-12

Tire Inflation Pressure 0.35 kg/cm² (5 psi)

MISCELLANY

Gas Tank Capacity (rated) 24.6 L (6.5 U.S. gal.)

Rear Drive Capacity 250 ml (8.5 fl oz)**

Differential Capacity (front — 4×4) 275 ml (9.3 fl oz)***

Engine Oil Capacity 3.08 L (3.25 U.S. qt)

Gasoline (recommended) 87 Octane Regular

Unleaded

Engine Oil (recommended) SAE 5W-30

Differential/Rear Drive Lubricant SAE Approved

80W-90 Hypoid

Brake Fluid DOT 4

Taillight/Brakelight 12V/8W/27W

Headlight 12V/37W (2)

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1-4

General Specifications*

(500 — Manual Transmission)

* Specifications subject to change without notice.

** At the oil level plug threads.

*** At the filler plug threads.

CARBURETOR

Typ e Ke i hi n C V K3 6

Main Jet 138

Slow Jet 40

Pilot Screw Setting (turns) 1 3/4

Jet Needle NFKG

Idle RPM

(engine warm)

1250-1350

Starter Jet 85

Float Arm

Height

17 mm (0.7 in.)

Throttle Cable Free-Play (at

lever)

3-6 mm (1/8-1/4 in.)

ELECTRICAL

Ignition Timing 10° BTDC @ 1500 RPM

Spark Plug Type NGK CR6E

Spark Plug Gap 0.7-0.8 mm (0.028-0.032

in.)

Spark Plug Cap 8000-12,000 ohms

Ignition Coil

Resistance

(primary)

(secondary)

Less than 1 ohm

(terminal to ground)

5200-7800 ohms

(high tension — plug cap

removed — to ground)

Ignition Coil

Peak Voltage

(primary/

CDI)

140-215 DC volts

(terminal to ground)

Magneto Coil

Resistance

(trigger)

(source)

(charging)

160-240 ohms

(green to blue)

Less than 1 ohm

(yellow to white)

Less than 1 ohm

(black to black)

Magneto Coil

Peak Voltage

(trigger)

(source)

4.2-6.3 volts

(green to blue)

0.40-0.62 volt

(yellow to white)

Stator Coil Out-

put

(no load) 60 AC volts @ 5000 RPM

(black to black #1)

(black to black #2)

Magneto Output (approx) 325W @ 5000 RPM

CHASSIS

Brake Type Hydraulic w/Brake Lever

Lock and Auxiliary Brake

Tire Size Front — 25 x 8-12

Rear — 25 x 10-12

Tire Inflation

Pressure

0.35 kg/cm² (5 psi)

MISCELLANY

Gas Tank Capacity (rated) 24.6 L (6.5 U.S. gal.)

Coolant Capacity 2.9 L (3.0 U.S. qt)

Differential Capacity 275 ml (9.3 fl oz)**

Rear Drive Capacity 250 ml (8.5 fl oz)***

Engine Oil Capacity 3.4 L (3.5 U.S. qt)

Gasoline (recommended) 87 Octane Regular

Unleaded

Engine Oil (recommended) SAE 5W-30

Differential/Rear Drive Lubricant SAE Approved

80W-90 Hypoid

Brake Fluid DOT 4

Taillight/Brakelight 12V/8W/27W

Headlight 12V/27W (2)

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1-5

1

General Specifications*

(500 — Automatic Transmission)

* Specifications subject to change without notice.

** At the oil level plug threads.

*** At the filler plug threads.

CARBURETOR

Type Keihin CVK36

Main Jet 138

Slow Jet 40

Pilot Screw Setting (turns) 1 3/4

Jet Needle NFKG

Idle RPM (engine warm) 1250-1350

Starter Jet 85

Float Arm Height 17 mm (0.7 in.)

Throttle Cable Free-Play

(at lever)

3-6 mm (1/8-1/4 in.)

ELECTRICAL

Ignition Timing 10° BTDC @ 1500 RPM

Spark Plug Type NGK CR6E

Spark Plug Gap 0.7-0.8 mm (0.028-0.032 in.)

Spark Plug Cap 8000-12,000 ohms

Ignition Coil

Resistance

(primary)

(secondary)

Less than 1 ohm

(terminal to ground)

5200-7800 ohms

(high tension — plug cap

removed — to ground)

Ignition Coil Peak

Voltage

(primary/

CDI)

140-215 DC volts

(terminal to ground)

Magneto Coil

Resistance

(trigger)

(source)

(charging)

160-240 ohms

(green to blue)

Less than 1 ohm

(yellow to white)

Less than 1 ohm

(black to black)

Magneto Coil

Peak Voltage

(trigger)

(source)

4.2-6.3 volts

(green to blue)

0.40-0.62 volt

(yellow to white)

Stator Coil Output (no load) 60 AC volts @ 5000 RPM

(black to black #1)

(black to black #2)

Magneto Output (approx) 325W @ 5000 RPM

CHASSIS

Brake Type Hydraulic w/Brake Lever

Lock and Auxiliary Brake

Tire Size Front — 25 x 8-12

Rear — 25 x 10-12

Tire Inflation Pressure 0.35 kg/cm² (5 psi)

MISCELLANY

Gas Tank Capacity (rated) 24.6 L (6.5 U.S. gal.)

Coolant Capacity 2.9 L (3.0 U.S. qt)

Differential Capacity 275 ml (9.3 fl oz)**

Rear Drive Capacity 250 ml (8.5 fl oz)***

Engine Oil Capacity 2.5 L (2.6 U.S. qt)

Gasoline (recommended) 87 Octane Regular

Unleaded

Engine Oil (recommended) SAE 5W-30

Differential/Rear Drive Lubricant SAE Approved

80W-90 Hypoid

Drive Belt Width (minimum) 38 mm (1.33 in.)

Brake Fluid DOT 4

Taillight/Brakelight 12V/8W/27W

Headlight 12V/27W (2)

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1-6

General Specifications*

(650 H1/650 H1 TBX/650 H1 TRV)

* Specifications subject to change without notice.

** At the oil level plug threads.

*** At the filler plug threads.

CARBURETOR

Type Keihin CVK36

Main Jet 132

Slow Jet 40

Pilot Screw Setting (turns) 1 1/4

Jet Needle NFKS

Idle RPM (engine warm) 1250-1350

Starter Jet 85

Float Arm Height 17 mm (0.7 in.)

Throttle Cable Free-Play

(at lever)

3-6 mm (1/8-1/4 in.)

ELECTRICAL

Ignition Timing 10° BTDC @ 1500 RPM

Spark Plug Type NGK CR6E

Spark Plug Gap 0.7-0.8 mm (0.028-0.032

in.)

Spark Plug Cap 4000 ohms

Ignition Coil

Resistance

(primary)

(secondary)

Less than 1 ohm

(terminal to ground)

5200-7800 ohms

(high tension — plug cap

removed — to ground)

Ignition Coil Peak

Voltage

(primary/

CDI)

142.4-213.6 DC volts

(terminal to ground)

Magneto Coil

Resistance

(trigger)

(source)

(charging)

160-240 ohms

(green to blue)

Less than 1 ohm

(yellow to white)

Less than 1 ohm

(black to black)

Magneto Coil

Peak Voltage

(trigger)

(source)

4.2-6.3 volts

(green to blue)

0.40-0.62 volt

(yellow to white)

Stator Coil Output (no load) 60 AC volts @ 5000 RPM

(black to black #1)

(black to black #2)

Magneto Output (approx) 325W @ 5000 RPM

CHASSIS

Brake Type Hydraulic w/Brake Lever

Lock and Auxiliary Brake

Tire Size Front — 25 x 8-12

Rear — 25 x 10-12

Tire Inflation Pressure 0.35 kg/cm² (5 psi)

MISCELLANY

Gas Tank Capacity (rated) 24.6 L (6.5 U.S. gal.)

20.8 L (5.5 U.S. gal.) — TBX/

TRV

Coolant Capacity 2.9 L (3.0 U.S. qt)

Differential Capacity 275 ml (9.3 fl oz)**

Rear Drive Capacity 250 ml (8.5 fl oz)***

Engine Oil Capacity 3.4 L (3.5 U.S. qt)

Gasoline (recommended) 87 Octane Regular

Unleaded

Engine Oil (recommended) SAE 5W-30

Differential/Rear Drive Lubricant SAE Approved

80W-90 Hypoid

Belt Width 35.5 mm (1.40 in.)

Brake Fluid DOT 4

Taillight/Brakelight 12V/8W/27W

Headlight 12V/27W (2)

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1-7

1

General Specifications*

(700 EFI)

* Specifications subject to change without notice.

** One inch below plug threads.

*** At the plug threads.

FUEL INJECTION

Type Electronic Throttle Body

Idle RPM (engine warm) 1200-1400

Throttle Cable Free-Play

(at lever)

3-6 mm (1/8-1/4 in.)

ELECTRICAL

Spark Plug Type NGK CR6E

Spark Plug Gap 0.7-0.8 mm (0.028-0.032 in.)

Spark Plug Cap 8000-12,000 ohms

Ignition Coil

Resistance

(primary)

(secondary)

Less than 1 ohm

(terminal (+) to terminal (-))

12k-19k ohms

(plug cap to terminal (+))

Ignition Coil Peak

Voltage

(ECU) 80 volts or more

(wire (+) to wire (-))

Stator Coil (crankshaft position

Resistance sensor)

(charging)

150-250 ohms

(blue to white)

Less than 1 ohm

(yellow to yellow)

Crankshaft Position Sensor

Peak Voltage

5.0 volts or more

(blue to white)

Stator Coil Output (no load) 75 AC volts @ 5000 RPM

(yellow to yellow)

CHASSIS

Brake Type Hydraulic w/Brake Lever

Lock and Auxiliary Brake

Tire Size Front — 25 x 8-12

Rear — 25 x 10-12

Tire Inflation Pressure 0.35 kg/cm² (5 psi)

MISCELLANY

Gas Tank Capacity (rated) 24.6 L (6.5 U.S. gal.)

Coolant Capacity 2.9 L (3.0 U.S. qt)

Differential Capacity 275 ml (9.3 fl oz)**

Rear Drive Capacity 250 ml (8.5 fl oz)***

Engine Oil Capacity 2.45 L (2.6 U.S. qt)

Gasoline (recommended) 87 Octane Regular

Unleaded

Engine Oil (recommended) SAE 5W-30

Differential/Rear Drive Lubricant SAE Approved

80W-90 Hypoid

Drive Belt Width (minimum) 35.6 mm (1.40 in.)

Brake Fluid DOT 4

Taillight/Brakelight 12V/8W/27W

Headlight 12V/27W (2)

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1-8

Break-In Procedure

A new ATV and an overhauled ATV engine require

a “break-in” period. The first 10 hours (or 200

miles) are most critical to the life of this ATV.

Proper operation during this break-in period will

help assure maximum life and performance from the

ATV.

During the first 10 hours (or 200 miles) of operation,

always use less than 1/2 throttle. Varying the engine

RPM during the break-in period allows the compo-

nents to “load” (aiding the mating process) and then

“unload” (allowing components to cool). Although

it is essential to place some stress on the engine

components during break-in, care should be taken

not to overload the engine too often. Do not pull a

trailer or carry heavy loads during the 10-hour

break-in period.

When the engine starts, allow it to warm up prop-

erly. Idle the engine several minutes until the engine

has reached normal operating temperature. Do not

idle the engine for excessively long periods of time.

During the break-in period, a maximum of 1/2 throt-

tle is recommended; however, brief full-throttle

accelerations and variations in driving speeds con-

tribute to good engine break-in.

During the break-in period (or whenever the brake

pads are replaced), the hydraulic brake pads must be

burnished. Slow disc-speed hydraulic brakes must

be properly burnished in order to achieve maximum

stopping power.

NOTE: Do not be reluctant to heat up the brake

pads during the burnishing procedure.

After the completion of the break-in period, the

engine oil and oil filter should be changed. Other

maintenance after break-in should include checking

of all prescribed adjustments and tightening of all

fasteners.

Gasoline — Oil —

Lubricant

RECOMMENDED GASOLINE

The recommended gasoline to use is 87 minimum

octane regular unleaded. In many areas, oxygenates

(either ethanol or MTBE) are added to the gasoline.

Oxygenated gasolines containing up to 10% ethanol,

5% methane, or 5% MTBE are acceptable gasolines.

When using ethanol blended gasoline, it is not nec-

essary to add a gasoline antifreeze since ethanol will

prevent the accumulation of moisture in the fuel sys-

tem.

RECOMMENDED ENGINE/

TRANSMISSION OIL

The recommended oil to use is Arctic Cat 4-Cycle

Engine Oil or an equivalent oil which is rated SE,

SF, or SG under API service classification. These

oils meet all of the lubrication requirements of the

Arctic Cat ATV engine. The recommended engine

oil viscosity is SAE 5W-30. Ambient temperature

should determine the correct weight of oil. See the

following viscosity chart for details.

! CAUTION

BRAKE PADS MUST BE BURNISHED TO ACHIEVE

FULL BRAKING EFFECTIVENESS. Braking distance

will be extended until brake pads are properly bur-

nished.

TO PROPERLY BURNISH THE BRAKES, USE FOL-

LOWING PROCEDURE:

Choose an area sufficiently large to safely accel-

erate ATV to 30 mph and to brake to a stop.

Accelerate to 30 mph; then compress brake lever

to decelerate to 0-5 mph.

Repeat procedure five times until brakes are bur-

nished.

This procedure burnishes the brake pads, stabi-

lizes the pad material, and extends the life of the

brake pads.

! WARNING

Do not attempt sudden stops or put the ATV into a

situation where a sudden stop will be required until

the brake pads are properly burnished.

! CAUTION

Do not use white gas. Only Arctic Cat approved gas-

oline additives should be used.

! CAUTION

Any oil used in place of the recommended oil could

cause serious engine damage. Do not use oils which

contain graphite or molybdenum additives. These

oils can adversely affect clutch operation. Also, not

recommended are racing, vegetable, non-detergent,

and castor-based oils.

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1-9

1

OILCHARTC

RECOMMENDED FRONT

DIFFERENTIAL/REAR DRIVE

LUBRICANT

The recommended lubricant is Arctic Cat Gear Lube

or an equivalent gear lube which is SAE approved

80W-90 hypoid. This lubricant meets all of the

lubrication requirements of the Arctic Cat ATV

front differentials and rear drives.

FILLING GAS TANK

ATV0049B

Since gasoline expands as its temperature rises, the

gas tank must be filled to its rated capacity only.

Expansion room must be maintained in the tank par-

ticularly if the tank is filled with cold gasoline and

then moved to a warm area.

Tighten the gas tank cap securely after filling the

tank.

Genuine Parts

When replacement of parts is necessary, use only

genuine Arctic Cat ATV parts. They are precision-

made to ensure high quality and correct fit. Refer to

the appropriate Illustrated Parts Manual for the cor-

rect part number, quantity, and description.

Preparation

For Storage

Arctic Cat recommends the following procedure to

prepare the ATV for storage.

1. Clean the seat cushion (cover and base) with a

damp cloth and allow it to dry.

2. Clean the ATV thoroughly by washing dirt, oil,

grass, and other foreign matter from the entire

ATV. Allow the ATV to dry thoroughly. DO

NOT get water into any part of the engine or air

intake.

! CAUTION

Any lubricant used in place of the recommended

lubricant could cause serious front differential/rear

drive damage.

! WARNING

Always fill the gas tank in a well-ventilated area.

Never add fuel to the ATV gas tank near any open

flames or with the engine running. DO NOT SMOKE

while filling the gas tank.

! WARNING

Do not overflow gasoline when filling the gas tank. A

fire hazard could materialize. Always allow the

engine to cool before filling the gas tank.

! WARNING

Do not over-fill the gas tank.

! CAUTION

Prior to storing the ATV, it must be properly serviced

to prevent rusting and component deterioration.

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1-10

3. Either drain the gas tank or add Fuel Stabilizer

to the gas in the gas tank. Remove the air filter

housing cover and air filter. Start the engine and

allow it to idle; then using Arctic Cat Engine

Storage Preserver, rapidly inject the preserver

into the air filter opening for a period of 10 to 20

seconds; then stop the engine. Install the air fil-

ter and housing cover.

4. On carbureted models, drain the carburetor float

chamber.

5. Plug the exhaust hole in the exhaust system with

a clean cloth.

6. Apply light oil to the upper steering post bush-

ing and plungers of the shock absorbers.

7. Tighten all nuts, bolts, cap screws, and screws.

Make sure rivets holding components together

are tight. Replace all loose rivets. Care must be

taken that all calibrated nuts, cap screws, and

bolts are tightened to specifications (see Section

10).

8. On liquid cooled models, fill the cooling system

to the bottom of the stand pipe in the radiator

neck with properly mixed coolant.

9. Disconnect the battery cables; then remove the

battery, clean the battery posts and cables, and

store in a clean, dry area.

10. Store the ATV indoors in a level position.

Preparation After

Storage

Taking the ATV out of storage and correctly prepar-

ing it will assure many miles and hours of trouble-

free riding. Arctic Cat recommends the following

procedure to prepare the ATV.

1. Clean the ATV thoroughly.

2. Clean the engine. Remove the cloth from the

exhaust system.

3. Check all control wires and cables for signs of

wear or fraying. Replace if necessary.

4. Change the engine/transmission oil and filter.

5. On liquid cooled models, check the coolant level

and add properly mixed coolant as necessary.

6. Charge the battery; then install. Connect the bat-

tery cables.

7. Check the entire brake systems (fluid level,

pads, etc.), all controls, headlights, taillight,

brakelight, and headlight aim; adjust or replace

as necessary.

8. Tighten all nuts, bolts, cap screws, and screws

making sure all calibrated nuts, cap screws, and

bolts are tightened to specifications (see Section

10).

9. Check tire pressure. Inflate to recommended

pressure as necessary.

10. Make sure the steering moves freely and does

not bind.

11. Check the spark plug. Clean or replace as neces-

sary.

! CAUTION

If the interior of the air filter housing is dirty, clean

the area before starting the engine.

! CAUTION

Avoid storing outside in direct sunlight and avoid

using a plastic cover as moisture will collect on the

ATV causing rusting.

! CAUTION

The ignition switch must be in the OFF position prior

to installing the battery or damage may occur to the

ignition system.

! CAUTION

Connect the positive battery cable first; then the

negative.

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2-1

2

SECTION 2 —

PERIODIC MAINTENANCE/TUNE-UP

TABLE OF

CONTENTS

Periodic Maintenance Chart………………………….….. 2-2

Lubrication Points…………………………….………….….. 2-3

Battery…………………….……………..…………….……….. 2-3

Fuses …………..………………………..…………….……….. 2-4

Air Cleaner/Filter ………………………..…………….…….. 2-4

Valve/Tappet Clearance

(Feeler Gauge Procedure) …………..…………….….. 2-6

Valve/Tappet Clearance

(Valve Adjuster Procedure) …………….…………… 2-6

Valve/Tappet Clearance (700 EFI)…………….……….. 2-7

Testing Engine Compression………..…………….…….. 2-9

Spark Plug…….…………….………….…………….……… 2-10

Muffler/Spark Arrester …………..…………….…………. 2-10

Gas/Vent Hoses …………………..…………….…………. 2-11

Adjusting Throttle Cable ……..…………….…………. 2-11

Adjusting Engine RPM (Idle) ….…………….…………. 2-11

Engine/Transmission Oil — Filter — Strainer ………… 2-12

Front Differential/Rear Drive Lubricant …………… 2-14

Adjusting Clutch

(400/500 Manual Transmission) …………….…… 2-14

Tires …………….………………………..…………….……… 2-15

Steering Components ……………………………….…… 2-15

Driveshaft/Coupling …………………….…………….…… 2-15

Suspension/Shock Absorbers/Bushings …………… 2-16

Nuts/Bolts/Cap Screws……………..…………….……… 2-16

Ignition Timing………….……………..…………….……… 2-16

Headlight/Taillight-Brakelight ………………..…………. 2-16

Switches ………….………….…………….…………….…… 2-17

Shift Lever ……….………….…………….…………….…… 2-18

Frame/Welds/Racks ……………………………….……… 2-19

Electrical Connections…..…………….…………….…… 2-19

Hydraulic Brake Systems …………….……………. 2-20

Burnishing Brake Pads….…………….…………….…… 2-21

Coolant (500/650 H1/700 EFI) …………..……………. 2-22

Checking/Replacing V-Belt ………….…………….…… 2-22

Adjusting Differential Lock Cable……..………….…… 2-24

Exhaust Chart .…………….…………….………….……… 2-25

Intake Chart…..…………….…………….………….……… 2-26

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2-2

Periodic Maintenance

Chart

A = Adjust I = Inspect

C = Clean L = Lubricate

D = Drain R = Replace

* Service/Inspect more frequently when operating in adverse conditions.

Item

Initial Service

After Break-In

(First Mo or

100 Mi)

Every

Day

Every

Month or

Every

100 Miles

Every 3

Months

or Every

300 Miles

Every 6

Months

or Every

500 Miles

Every

Year or

Every

1500 Miles

As

Needed

Battery I I C

Fuses IR

Air Filter/Drain Tube I I C* R

Valve/Tappet Clearance I I A

Engine Compression I

Spark Plug I I R (4000 Mi

or 18 Mo)

Muffler/Spark Arrester CR

Gas/Vent Hoses I I R (2 Yrs)

Throttle Cable I I C-L A-R

Carburetor Float Chamber

(Carbureted Models)

D*

Engine Idle RPM

(Carbureted Models)

IIA

Engine-Transmission Oil Level I A

Engine-Transmission Oil/Filter R R* R

Oil Strainer I I C

Front Differential/Rear Drive Lubri-

cant

IR (4 Yrs)

Clutch (Manual) I l A

Tires/Air Pressure I I R

Steering Components I I I R

V-Belt (Automatic) I l R

Suspension (Ball joint boots, drive

axle boots front and rear, tie rods,

differential and rear drive bellows)

Il* R

Nuts/Cap Screws/Screws I I I A

Ignition Timing I

Headlight/Taillight-Brakelight I I R

Switches I I R

Shift Lever IAL

Recoil Starter

(Except certain 650 H1 models)

ICR

Handlebar Grips I R

Handlebars I I R

Gauges/Indicators I I R

Frame/Welds/Racks I I l

Electrical Connections lC

Complete Brake System (Hydraulic

& Auxiliary)

II C LR

Brake Pads I I* R

Brake Fluid I I R (2 Yrs)

Brake Hoses I I R (4 Yrs)

Coolant/Cooling System I I R (2 Yrs)

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2-3

2

Lubrication Points

It is advisable to lubricate certain components peri-

odically to ensure free movement. Apply light oil to

the components using the following list as reference.

A. Throttle Lever Pivot/Cable Ends

B. Brake Lever Pivot/Cable Ends

C. Auxiliary Brake Cable Ends

D. Shift Lever Cable End

E. Idle RPM Screw (Carburetor) (If Applicable)

Battery

The level of the battery fluid must be kept between

the upper and lower level lines at all times. If the

level drops below the lower level line, add only dis-

tilled water until it reaches upper level line.

If the battery is discharged, remove the battery from

the ATV and charge the battery at 1.5 amps for 10

hours.

To remove and charge the battery, use the following

procedure.

1. Remove the battery hold-down bracket.

2. Remove the negative battery cable; then remove

the positive cable and the battery vent tube.

Remove the battery from the ATV. Care should

be taken not to damage the vent tube.

3. Remove the vent plugs; then (if necessary) fill

the battery with distilled water to the upper

level indicated on the battery.

4. Trickle charge the battery at 1.5 amps for 10

hours.

5. After charging, check fluid level and fill with

distilled water as necessary; then install vent

plugs.

6. Place the battery into position in the ATV and

secure with the hold-down bracket.

7. Attach the vent tube and check the vent tube to

make sure it is not crimped or obstructed in any

way and that it is properly routed through and

secured to the frame.

8. Connect cables to the proper terminals: positive

cable to the positive terminal (+) and negative

cable to the negative terminal (-). Connect the

negative cable last.

! WARNING

Battery acid is harmful if it contacts eyes, skin, or

clothing. Care must be taken whenever handling a

battery.

! WARNING

Anytime service is performed on a battery, the fol-

lowing must be observed: keep sparks, open flame,

cigarettes, or any other flame away. Always wear

safety glasses. Protect skin and clothing when han-

dling a battery. When servicing battery in enclosed

space, keep the area well-ventilated. Make sure bat-

tery venting is not obstructed.

! WARNING

Avoid spillage and contact with skin, eyes, and

clothing.

! CAUTION

Do not charge the battery while it is in the ATV with

the battery terminals connected.

! CAUTION

Never exceed the standard charging rate.

! CAUTION

Before installing the battery, make sure the ignition

switch is in the OFF position.

! CAUTION

Connecting cables in reverse (positive to negative

and negative to positive) can cause serious damage

to the electrical system.

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2-4

Fuses

The fuses are located in a power distribution module

under the seat.

If there is any type of electrical system failure,

always check the fuses first.

NOTE: To remove a fuse, compress the locking

tabs on either side of the fuse case and lift out.

0411-828

0411-837

1411-502

1411-311

Air Cleaner/Filter

The air filter inside the air filter housing must be

kept clean to provide good engine power and gas

mileage. If the ATV is used under normal condi-

tions, service the filter at the intervals specified. If

operated in dusty, wet, or muddy conditions, inspect

and service the filter more frequently. Use the fol-

lowing procedure to remove the filter and inspect

and/or clean it.

CLEANING AND INSPECTING

FILTER

1. Remove the seat; then remove the appropriate

reinstallable rivets securing the storage compart-

ment.

CF145C

CD710C

400/400 TRV/500 Auto

400/500 Manual

650 H1/650 H1 TBX/650 H1 TRV

700 EFI

! CAUTION

Always replace a blown fuse with a fuse of the same

type and rating.

! CAUTION

Failure to inspect the air filter frequently if the vehi-

cle is used in dusty, wet, or muddy conditions can

damage the engine.

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2-5

2

2. On the 400, remove the storage compartment

assembly by elevating the rear of the compart-

ment, moving it rearward, and lifting it off.

CF143A

3. On the 500/650 H1/700 EFI, raise the storage

compartment cover; then slide the cover forward

and off the compartment. Remove the storage

compartment.

CD669

4. Unsnap the four spring-clip fasteners

(400/500/650 H1) or remove two wing-nuts

(700 EFI); then remove the air filter cover.

CD675A

FI033

5. Remove the air filter/filter screen assembly and

separate the foam filter from the screen.

6. Fill a wash pan larger than the filter with a

non-flammable cleaning solvent; then dip the

filter in the solvent and wash it.

NOTE: Foam Air Filter Cleaner and Foam Air Fil-

ter Oil are available from Arctic Cat.

7. Dry the filter.

8. Put the filter in a plastic bag; then pour in air fil-

ter oil and work the filter. Reattach the filter to

the filter screen.

9. Clean any dirt or debris from inside the air

cleaner. Be sure no dirt enters the carburetor (if

equipped).

10. Place the filter assembly in the air filter housing

making sure it is properly positioned and prop-

erly seated with the filter screen down.

CD674

! CAUTION

A torn air filter can cause damage to the ATV engine.

Dirt and dust may get inside the engine if the ele-

ment is torn. Carefully examine the element for tears

before and after cleaning it. Replace the element

with a new one if it is torn.

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2-6

11. Install the air filter housing cover and secure

with the retaining clips (400/500/650 H1) or

wing-nuts (700 EFI).

12. Install the storage compartment; then secure

with the reinstallable rivets.

CHECKING AND CLEANING

DRAINS

1. Inspect one-way drains beneath the main hous-

ing for debris and for proper sealing.

KX045A

2. Replace any one-way drain that is cracked or

shows any signs of hardening or deterioration.

3. Wipe any accumulation of oil or gas from the

filter housing and one-way drains.

Valve/Tappet

Clearance

(Feeler Gauge Procedure)

NOTE: For the 700 EFI, see Valve/Tappet Clear-

ance (700 EFI) in this section.

To check and adjust valve/tappet clearance, use the

following procedure.

1. Remove the timing inspection plug; then

remove the tappet covers (for more detailed

information, see Section 3 — Servicing Top-Side

Components).

2. Rotate the crankshaft to the TDC position on the

compression stroke.

NOTE: At this point, the rocker arms and

adjuster screws must not have pressure on them.

3. Using a feeler gauge, check each valve/tappet

clearance. If clearance is not within specifica-

tions, loosen the jam nut and rotate the tappet

adjuster screw until the clearance is within spec-

ifications. Tighten each jam nut securely after

completing the adjustment.

CC007DB

4. Install the timing inspection plug.

5. Place the two tappet covers into position making

sure the proper cap screws are with the proper

cover. Tighten the cap screws securely.

Valve/Tappet Clearance

(Valve Adjuster Procedure)

NOTE: For the 700 EFI, see Valve/Tappet Clear-

ance (700 EFI) in this section.

To check and adjust valve/tappet clearance, use the

following procedure.

! CAUTION

The one-way drain to the right is the clean air sec-

tion of the filter housing. Any leak of this one-way

drain will allow dirt into the engine intake causing

severe engine damage.

! CAUTION

The feeler gauge must be positioned at the same

angle as the valve and valve adjuster for an accurate

measurement of clearance. Failure to measure the

valve clearance accurately could cause valve com-

ponent damage.

VALVE/TAPPET CLEARANCE (400/500)

Intake 0.05-0.10 mm (0.002-0.004 in.)

Exhaust (400) 0.22-0.27 mm (0.009-0.011 in.)

Exhaust (500) 0.17-0.22 mm (0.007-0.009 in.)

VALVE/TAPPET CLEARANCE (650 H1)

Intake 0.1016 mm (0.004 in.)

Exhaust 0.1524 mm (0.006 in.)

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2

NOTE: On the TBX/500/650 H1, the seat, storage

compartment cover assembly, compartment box,

air filter/filter housing, and left-side/right-side

splash panels must be removed for this procedure.

1. Remove the timing inspection plug; then

remove the tappet covers (for more detailed

information, see Section 3 — Servicing Top-Side

Components).

CF005

2. Rotate the crankshaft to the TDC position on the

compression stroke.

NOTE: At this point, the rocker arms and

adjuster screws must not have pressure on them.

NOTE: Use Valve Clearance Adjuster (p/n

0444-078) for this procedure.

3. Place the valve adjuster onto the jam nut secur-

ing the tappet adjuster screw; then rotate the

valve adjuster dial clockwise until the end is

seated in the tappet adjuster screw.

4. While holding the valve adjuster dial in place,

use the valve adjuster handle and loosen the jam

nut; then rotate the tappet adjuster screw clock-

wise until friction is felt.

5. Align the valve adjuster handle with one of the

marks on the valve adjuster dial.

6. While holding the valve adjuster handle in

place, rotate the valve adjuster dial counter-

clockwise until proper valve/tappet clearance is

attained.

NOTE: Refer to the appropriate specifications in

Feeler Gauge Procedure sub-section for the proper

valve/tappet clearance.

NOTE: Rotating the valve adjuster dial counter-

clockwise will open the valve/tappet clearance by

0.05 mm (0.002 in.) per mark.

7. While holding the adjuster dial at the proper

clearance setting, tighten the jam nut securely

with the valve adjuster handle.

8. Place the two tappet covers with O-rings into

position; then tighten the covers securely.

9. Install the spark plug; then install the timing

inspection plug.

Valve/Tappet

Clearance

(700 EFI)

To check and adjust valve/tappet clearance, use the

following procedure.

NOTE: The seat, heat shields, splash panels,

front rack, and front fenders must be removed for

this procedure (see Section 8).

1. Remove the spark plug cap/high tension lead;

then using compressed air, blow any debris from

around the spark plug.

2. Remove the recoil starter assembly; then

remove the valve timing inspection plug and the

cylinder head cover.

FI039A

3. Using an appropriate bar, rotate the engine

through two full revolutions; then while on the

compression stroke, align the TDC line on the

starter clutch with the index mark on the crank-

case.

! WARNING

Always wear safety glasses when using compressed

air.

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2-8

FI041A

NOTE: Rotating the engine ensures that any

trapped oil is squeezed from the tappets and tap-

pet shims. Oil trapped in these areas could result

in a false valve clearance reading.

4. Using an appropriate thickness gauge, measure

and record the clearance of both intake valves;

then measure and record the clearance of both

exhaust valves. Valve clearance must be within

specifications.

FI046

5. Identify the valves that are not within specifica-

tions; then remove the corresponding camshaft

(see Section 3 — Removing Top-Side Compo-

nents).

6. Mark the valve tappets in order to return them to

the proper position during assembly.

FI054

7. Fold a suitable towel and use it to plug the cam-

shaft drive passageway; then using a magnet,

remove the tappet and shim from the appropriate

valve.

FI055

FI056

8. Note the three digit number on the surface of the

tappet shim; then refer to the appropriate tappet

shim selection table at the end of this section for

the correct replacement.

VALVE/TAPPET CLEARANCE (700 EFI)

Intake 0.10-0.20 mm (0.004-0.008 in.)

Exhaust 0.20-0.30 mm (0.008-0.012 in.)

AT THIS POINT

If valve clearance is within specifications, proceed

to step 12.

! CAUTION

When removing camshaft holders, use extreme care

not to drop alignment pins into the engine.

! CAUTION

If the camshaft passageway is not plugged, tappet

shims could fall into the engine crankcase.

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2-9

2

FI051

A. Measured tappet clearance from step 4 in ver-

tical column on left.

B. Present shim size horizontal row at the top.

C. Match measured clearance in vertical column

with current shim size in horizontal row to

find recommended replacement size.

9. Apply engine oil to both surfaces of the tappet

shim; then place the shim on the valve with the

numbers toward the tappet.

FI053

10. Install the tappet on the appropriate valve; then

install the camshaft.

11. Using an appropriate bar, rotate the engine

through two full revolutions; then rotate to TDC

on the compression stroke and check the valve

tappet clearance.

NOTE: Rotating the engine ensures that any

excess oil is squeezed from the tappets and tappet

shims. Oil trapped in these areas could result in a

false valve clearance reading.

12. Using a new gasket, apply Three Bond Sealant

to the camshaft end caps of the cylinder head

cover gasket; then install the cylinder head

cover and tighten the four cap screws to specifi-

cations (see Section 10).

13. Install the valve timing inspection plug and

tighten securely; then install the recoil starter

assembly and secure with the four cap screws

coated with blue Loctite #242. Tighten to speci-

fications (see Section 10).

14. Install the spark plug cap/high tension lead,

front fenders, front rack, and splash panels; then

install the heat shields and seat making sure the

seat locks securely.

Testing Engine

Compression

To test engine compression, use the following pro

cedure.

1. Remove the high tension lead from the spark

plug.

2. Using compressed air, blow any debris from

around the spark plug.

3. Remove the spark plug; then attach the high ten-

sion lead to the plug and ground the plug on the

cylinder head well away from the spark plug

hole.

4. Attach the Compression Tester Kit (p/n

0444-213).

NOTE: The engine must be warm and the bat-

tery must be fully charged for this test.

5. While holding the throttle lever in the full-open

position, crank the engine over with the electric

starter until the gauge shows a peak reading

(five to 10 compression strokes).

NOTE: For the 400, the compression should be

within a range of 95-115 psi in the full-open throttle

position. For the 500/650 H1, the compression

should be within a range of 70-85 psi in the

full-open throttle position. For the 700 EFI, the

compression should be within a range of 130-155

psi in the full-open throttle position.

! WARNING

Always wear safety glasses when using compressed

air.

! CAUTION

On the 700 EFI, do not ground the spark plug on the

cylinder head cover. The cover is made of magne-

sium and any contact with spark or electrical arc will

severely pit the surface.

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2-10

6. If compression is abnormally low, inspect the

following items.

A. Verify starter cranks engine over at normal

speed (approximately 400 RPM).

B. Gauge functioning properly.

C. Throttle lever in the full-open position.

D. Valve/tappet clearance correct.

E. Valve not bent or burned.

F. Valve seat not burned.

NOTE: To service valves, see Section 3.

7. Pour 29.5 ml (1 fl oz) of oil into the spark plug

hole, reattach the gauge, and retest compression.

8. If compression is now evident, service the piston

rings (see Section 3).

Spark Plug

A light brown insulator indicates that a plug is cor-

rect. A white or dark insulator indicates that the

engine may need to be serviced or the carburetor (if

equipped) may need to be adjusted. To maintain a

hot, strong spark, keep the plug free of carbon.

ATV-0051

Adjust the gap to 0.7-0.8 mm (0.028-0.032 in.) for

proper ignition. Use a feeler gauge to check the gap.

ATV0052B

When installing the spark plug, be sure to tighten it

securely. A new spark plug should be tightened 1/2

turn once the washer contacts the cylinder head. A

used spark plug should be tightened 1/8 — 1/4 turn

once the washer contacts the cylinder head.

Muffler/Spark Arrester

The muffler has a spark arrester which must be peri-

odically cleaned. At the intervals shown in the Peri-

odic Maintenance Chart, clean the spark arrester

using the following procedure.

1. Remove the three cap screws securing the spark

arrester assembly to the muffler; then loosen and

remove the arrester.

CF105A

2. Using a suitable brush, clean the carbon deposits

from the screen taking care not to damage the

screen.

NOTE: If the screen or gasket is damaged in any

way, it must be replaced.

3. Install the spark arrester assembly with gasket;

then secure with the three cap screws. Tighten to

0.6 kg-m (4.0 ft-lb).

! CAUTION

Before removing a spark plug, be sure to clean the

area around the spark plug. Dirt could enter engine

when removing or installing the spark plug.

! WARNING

Wait until the muffler cools to avoid burns.

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2-11

2

CF104

Gas/Vent Hoses

Replace the gas hose every two years. Damage from

aging may not always be visible. Do not bend or

obstruct the routing of the carburetor/throttle body

vent hose. Make certain that the vent hose is

securely connected to the carburetor/throttle body

and the opposite end is always open.

Adjusting Throttle

Cable

To adjust the throttle cable free-play, follow this

procedure.

1. Slide the rubber boot away; then loosen the jam

nut from the throttle cable adjuster.

AL611D

2. Turn the adjuster until the throttle cable has

proper free-play of 3-6 mm (1/8-1/4 in.) at the

lever.

ATV-0047

3. Tighten the jam nut against the throttle cable

adjuster securely; then slide the rubber boot over

the adjuster.

Adjusting Engine RPM

(Idle)

NOTE: The idle RPM is not adjustable on the

700 EFI.

To properly adjust the idle RPM, a tachometer is

necessary. To adjust idle RPM, use the following

procedure.

NOTE: The idle adjustment screw is located on

the right-hand side of the carburetor.

1. With the transmission in neutral, start the engine

and warm it up to normal operating temperature.

2. Turn the idle adjustment screw clockwise one

turn past the recommended RPM setting; then

turn it counterclockwise to 1250-1350 RPM.

AF920D

! WARNING

Adjust the idle to the correct RPM. Make sure the

engine is at normal operating temperature before

adjusting the idle RPM.

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2-12

Engine/Transmission

Oil — Filter — Strainer

OIL — FILTER

Change the engine oil and oil filter at the scheduled

intervals. The engine should always be warm when

the oil is changed so the oil will drain easily and

completely.

1. Park the ATV on level ground.

2. Remove the oil level stick/filler plug.

ATV-0075

0735-505

3. Remove the drain plug from the bottom of the

engine and drain the oil into a drain pan.

733-441A

4. On the 400/500, remove the oil filter plug from

the filter mounting boss (located on the front

side of the transmission case) and allow the fil-

ter to drain completely. Install the plug and

tighten securely.

5. On the 700 EFI, remove the left-side engine

cover and the left-front inner fender panel.

6. Using the adjustable Oil Filter Wrench (p/n

0644-389) and a suitable wrench, remove the

old oil filter.

NOTE: Clean up any excess oil after removing

the filter.

7. Apply oil to a new filter O-ring and check to

make sure it is positioned correctly; then install

the new oil filter. Tighten securely.

NOTE: Install a new O-ring each time the filter is

replaced.

8. Install the engine drain plug and tighten to spec-

ifications. Pour the specified amount of the rec-

ommended oil in the filler hole. Install the oil

level stick/filler plug.

9. Start the engine (while the ATV is outside on

level ground) and allow it to idle for a few min-

utes.

10. Turn the engine off and wait approximately one

minute.

11. Unscrew the oil level stick and wipe it with a

clean cloth.

12. Install the oil level stick until the threads touch

engine case.

NOTE: The oil level stick should not be threaded

into the case for checking the oil level.

13. Remove the oil level stick; the engine oil level

should be above the illustrated “L” mark but not

higher than the illustrated “F” mark.

! CAUTION

Any oil used in place of the recommended oil could

cause serious engine damage. Do not use oils which

contain graphite or molybdenum additives. These

oils can adversely affect clutch operation. Also, not

recommended are racing, vegetable, non-detergent,

and castor-based oils.

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2-13

2

ATV-0100

14. Inspect the area around the drain plug and oil fil-

ter for leaks.

15. On the 700 EFI, install the left-side engine cover

and the left-front inner fender panel.

STRAINER

To check the oil strainer, use the following proce-

dure.

1. Remove the belly panel.

2. Remove the cap screws securing the oil strainer

cap; then remove the cap. Account for the

O-ring.

CC091D

3. Remove the two Phillips-head cap screws secur-

ing the strainer.

CC163D

4. Place the oil strainer into position beneath the

crankcase and secure with the Phillips-head cap

screws. Tighten securely.

CC163D

5. Place the strainer cap into position on the

strainer making sure the O-ring is properly

installed; then secure with the cap screws.

Tighten securely.

CC091D

6. Install the belly panel.

! CAUTION

Do not over-fill the engine with oil. Always make

sure that the oil level is above the L” mark but not

higher than the F mark.

AT THIS POINT

To service oil strainer, see Section 3.

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2-14

Front Differential/Rear

Drive Lubricant

Check and change the lubricant according to the

Periodic Maintenance Chart. When changing the

lubricant, use approved SAE 80W-90 hypoid gear

lube.

To check lubricant, remove the rear drive filler plug;

the lubricant level should be 1 in. below the threads

of the plug. If low, add SAE approved 80W-90

hypoid gear lube as necessary.

To change the lubricant, use the following proce-

dure.

1. Place the ATV on level ground.

2. Remove each oil fill plug.

AL677C

3. Drain the oil into a drain pan by removing in

turn the drain plug from each.

ATV0082A

737-651B

4. After all the oil has been drained, install the

drain plugs and tighten to specifications (see

Section 10).

5. Pour the appropriate amount of recommended

oil into the filler hole.

6. Install the fill plugs.

NOTE: If the differential/rear drive oil is contam-

inated with water, inspect the drain plug, filler

plug, and/or bladder.

Adjusting Clutch

(400/500 Manual Transmission)

To adjust the clutch, use the following procedure.

1. Using an impact driver, remove the screws

securing the cover and remove the cover.

Account for the O-ring.

AM600D

2. Loosen the jam nuts securing adjustment screw

#1 (forward) and adjustment screw #2 (rear-

ward).

! CAUTION

Water entering the outer end of the axle will not be

able to enter the rear drive unless the seals are dam-

aged.

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2-15

2

CC037D

3. Rotate adjustment screw #1 counterclockwise

until it stops.

CC038D

4. Rotate adjustment screw #2 alternately clock-

wise and counterclockwise to ensure free move-

ment without binding; then lock the jam nut

securing adjustment screw #2.

5. Rotate adjustment screw #1 clockwise 1/8 turn;

then lock the jam nut securing adjustment screw

#1.

NOTE: At this point the clutch should be adjusted

correctly. Test to ensure accurate adjustment.

6. Install the cover making sure the O-ring is prop-

erly positioned; then secure with the screws.

Tires

TIRE SIZES

The ATV is equipped with low-pressure tubeless

tires of the size and type listed (see Section 1). Do

not under any circumstances substitute tires of a dif-

ferent type or size.

TIRE INFLATION PRESSURE

Front and rear tire inflation pressure should be 0.35

kg-cm² (5.0 psi).

A low-pressure gauge is provided in the tool kit to

measure the air pressure in the tires. Check the air

pressure in all tires before each use of the ATV.

Steering Components

The following steering components should be

inspected periodically to ensure safe and proper

operation.

A. Handlebar grips not worn, broken, or loose.

B. Handlebar not bent, cracked, and has equal

and complete full-left and full-right capabil-

ity.

C. Steering post bearing assembly/bearing hous-

ing not broken, worn, or binding.

D. Ball joints not worn, cracked, or damaged.

E. Tie rods not bent or cracked.

F. Knuckles not worn, cracked, or damaged.

G. Cotter pins not damaged or missing.

Driveshaft/Coupling

The following drive system components should be

inspected periodically to ensure proper operation.

A. Spline lateral movement (slop).

B. Coupling cracked, damaged, or worn.

! WARNING

Always use the size and type of tires specified.

Always maintain proper tire inflation pressure.

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2-16

Suspension/Shock

Absorbers/Bushings

The following suspension system components

should be inspected periodically to ensure proper

operation.

A. Shock absorber rods not bent, pitted, or dam-

aged.

B. Rubber damper not cracked, broken, or miss-

ing.

C. Shock absorber body not damaged, punc-

tured, or leaking.

D. Shock absorber eyelets not broken, bent, or

cracked.

E. Shock absorber eyelet bushings not worn,

deteriorated, cracked, or missing.

F. Shock absorber spring not broken or sagging.

Nuts/Bolts/Cap Screws

Tighten all nuts, bolts, and cap screws. Make sure

rivets holding components together are tight.

Replace all loose rivets. Care must be taken that all

calibrated nuts, bolts, and cap screws are tightened

to specifications (see Section 10).

Ignition Timing

NOTE: The 700 EFI rotor/flywheel does not have

timing marks; therefore, timing cannot be verified.

The ignition timing cannot be adjusted; however,

verifying ignition timing can aid in troubleshooting

other components. To verify ignition timing, use the

following procedure.

1. Attach the Timing Light (p/n 0644-296) to the

spark plug high tension lead; then remove the

timing inspection plug from the left-side crank-

case cover.

2. Using the Tachometer (p/n 0644-275), start the

engine and run at 1500 RPM; ignition timing

should be 10° BTDC.

3. Install the timing inspection plug.

If ignition timing cannot be verified, the rotor may

be damaged, the key may be sheared, the trigger

coil/CKP sensor bracket may be bent or damaged, or

the CDI unit/ECU may be faulty.

Headlight/Taillight-

Brakelight

Each time the ATV is used, lights should be checked

for proper function. Rotate the ignition switch to the

lights position; the headlights and taillight should

illuminate. Test the brakelight by compressing the

brake lever. The brakelight should illuminate.

HEADLIGHT

NOTE: The bulb portion of the headlight is frag-

ile. HANDLE WITH CARE. When replacing the

headlight bulb, do not touch the glass portion of

the bulb. If the glass is touched, it must be cleaned

with a dry cloth before installing. Skin oil residue

on the bulb will shorten the life of the bulb.

To replace the headlight bulb, use the following pro-

cedure.

1. Remove the wiring harness connector from the

back of the headlight.

2. Grasp the bulb housing, turn it counterclock-

wise, and remove the bulb.

3. Install the new bulb into the housing and rotate

it completely clockwise.

4. Install the wiring harness connector.

TAILLIGHT-BRAKELIGHT

To replace the taillight-brakelight bulb, use the fol-

lowing procedure.

1. Turn the bulb socket assembly counterclockwise

and remove from the housing.

! WARNING

Do not attempt to remove the bulb when it is hot.

Severe burns may result.

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2-17

2

CF135A

2. Pull the bulb straight out of the socket; then

insert a new bulb.

CF132A

3. Insert the bulb socket assembly into the housing

and turn it clockwise to secure.

CHECKING/ADJUSTING

HEADLIGHT AIM

The headlights can be adjusted vertically and hori-

zontally. The geometric center of the HIGH beam

light zone is to be used for vertical and horizontal

aiming.

1. Position the ATV on a level floor so the head-

lights are approximately 6.1 m (20 ft) from an

aiming surface (wall or similar aiming surface).

NOTE: There should be an average operating

load on the ATV when adjusting the headlight aim.

2. Measure the distance from the floor to the

mid-point of each headlight.

3. Using the measurements obtained in step 2,

make horizontal marks on the aiming surface.

4. Make vertical marks which intersect the hori-

zontal marks on the aiming surface directly in

front of the headlights.

5. Switch on the lights. Make sure the HIGH beam

is on. DO NOT USE LOW BEAM.

6. Observe each headlight beam aim. Proper aim is

when the most intense beam is centered on the

vertical mark 5 cm (2 in.) below the horizontal

mark on the aiming surface.

ATV-0070C

7. Adjust each headlight by turning the adjuster

knob clockwise to raise the beam or counter-

clockwise to lower the beam.

CD714A

Switches

Each time the ATV is used, switches should be

checked for proper operation. Use the following list

for reference.

A. Ignition switch — engine will start.

B. Emergency stop switch — engine will stop.

C. Reverse switch — reverse indicator light will

illuminate.

D. Hi/Lo switch — headlight beam bright and

dim.

E. Brake switches — rear brakelight will illumi-

nate.

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2-18

Shift Lever

CHECKING ADJUSTMENT

CF150B

CF238A

CF130A

Stop the ATV completely and shift the transmission

into the R position. The reverse gear indicator light

should be illuminated.

If the reverse light does not illuminate when shifted

to the reverse position, the switch may be faulty, the

fuse may be blown, the bulb may be faulty, a con-

nection may be loose or corroded, or the lever may

need adjusting. To adjust, proceed to Adjusting Shift

Lever.

ADJUSTING SHIFT LEVER

0739-739

0739-701

1. Place the shift lever in the R position; then

remove the seat.

NOTE: Steps 2-8 are for all models except the

700 EFI. For the 700 EFI, proceed to step 9.

! WARNING

Never shift the ATV into reverse gear when the ATV

is moving as it could cause the ATV to stop sud-

denly throwing the operator from the ATV.

KEY

1. Handle

2. Push Clip

3. Shift Plate

4. Stamped Nut

5. Lever

6. Spring

7. Axle

8. Nut

9. O-Ring

10. Axle

11. O-Ring

12. Cap Screw

13. Washer

14. Nut

15. Rod End

16. Linkage

17. Bushing

18. Washer

19. E-Ring

400/500 Manual Transmission

KEY

1. Handle

2. Push Clip

3. Shift Plate

4. Stamped Nut

5. Lever

6. Spring

7. Axle

8. Nut

9. O-Ring

10. Axle

11. O-Ring

12. Cap Screw

13. Washer

14. Nut

15. Rod End

16. Linkage

17. Bushing

18. Washer

19. E-Ring

400/500 Automatic Transmission/

650 H1/700 EFI

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2-19

2

2. Remove the left-side splash panel.

3. Loosen shift rod end jam nut (A).

AF941A

4. Using two open-end wrenches, remove lock nut

(B) securing the shift rod to the upper shift axle.

Discard the lock nut.

NOTE: Never reuse a lock nut. Once a lock nut

has been removed, it must be replaced with a new

lock nut.

5. Push the upper shift axle down completely.

6. Rotate the shift rod end as necessary to align its

threaded shaft with the hole in the upper shift

axle. Secure with a new lock nut (B). Tighten

securely.

7. Tighten jam nut (A) to secure the adjustment.

8. Install the left-side splash panel; then install the

seat.

9. Loosen the front shift rod jam nut (1) (left-hand

threads); then loosen the rear shift rod jam nut

(2) (right-hand threads).

FI059A

FI010A

10. Turn the ignition switch to the ON position; then

move the shift arm (3) until the Neutral icon (N)

appears on the LCD.

11. Rotate the shift rod (4) until the shifter is

directly aligned with the Neutral position on the

shift gate.

12. While holding the shift rod with an open-end

wrench, tighten the shift rod jam nuts securely.

13. Shift the transmission into each of the remaining

positions and verify that the appropriate icon is

displayed for the selected gear shift position (H —

High, L — Low, and R — Reverse).

NOTE: An E (Error) in the gear position icon

indicates no signal or a poor ground wire connec-

tion in the circuit. Troubleshoot the harness con-

nectors, gear shift position connector, gear shift

position switch, and LCD connector.

Frame/Welds/Racks

The frame, welds, and racks should be checked peri-

odically for damage, bends, cracks, deterioration,

broken components, and missing components. If

replacement or repair constitutes removal, see Sec-

tion 8.

Electrical Connections

The electrical connections should be checked peri-

odically for proper function. In case of an electrical

failure, check fuses, connections (for tightness, cor-

rosion, damage), and/or bulbs. If an electrical com-

ponent needs to be tested for proper function, see

Section 5.

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2-20

Hydraulic

Brake Systems

CHECKING/BLEEDING

The hydraulic brake systems have been filled and

bled at the factory. To check and/or bleed a hydrau-

lic brake system, use the following procedure.

1. With the master cylinder in a level position,

check the fluid level in the reservoir. If the level

in the reservoir is not visible in the sight glass,

add DOT 4 brake fluid.

738-420A

AL681

2. Compress the brake lever/pedal several times to

check for a firm brake. If the brake is not firm,

the system must be bled.

3. To bleed the brake system, use the following

procedure.

A. Remove the cover and fill the reservoir with

DOT 4 Brake Fluid.

B. Install and secure the cover; then slowly

compress the brake lever several times.

C. Remove the protective cap, install one end of

a clear hose onto one FRONT bleeder screw,

and direct the other end into a container; then

while holding slight pressure on the brake

lever, open the bleeder screw and watch for

air bubbles. Close the bleeder screw before

releasing the brake lever. Repeat this proce-

dure until no air bubbles are present.

AF637D

PR377A

NOTE: During the bleeding procedure, watch the

reservoir sight glass very closely to make sure

there is always a sufficient amount of brake fluid.

When the sight glass changes from dark to light,

refill the reservoir before the bleeding procedure is

continued. Failure to maintain a sufficient amount

of fluid in the reservoir will result in air in the sys-

tem.

D. Repeat step C until the brake lever is firm.

E. At this point, perform step B, C, and D on the

other FRONT bleeder screw; then move to

the REAR bleeder screw and follow the same

procedure.

4. Carefully check the entire hydraulic brake system

that all hose connections are tight, the bleed

screws are tight, the protective caps are installed,

and no leakage is present.

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2-21

2

INSPECTING HOSES

Carefully inspect the hydraulic brake hoses for

cracks or other damage. If found, the brake hoses

must be replaced.

CHECKING/REPLACING PADS

The clearance between the brake pads and brake

discs is adjusted automatically as the brake pads

wear. The only maintenance that is required is

replacement of the brake pads when they show

excessive wear. Check the thickness of each of the

brake pads as follows.

1. Remove a front wheel.

2. Measure the thickness of each brake pad.

3. If thickness of either brake pad is less than 1.0

mm (0.039 in.), the brake pads must be replaced.

PR376B

NOTE: The brake pads should be replaced as a

set.

4. To replace the brake pads, use the following pro-

cedure.

A. Remove the wheel.

B. Remove the cap screws securing the caliper

holder to the knuckle; then remove the pads.

PR237

C. Install the new brake pads.

D. Secure the caliper to the knuckle and/or axle

housing with the cap screws. Tighten to spec-

ifications.

PR377B

E. Install the wheel. Tighten to specifications.

5. Burnish the brake pads (see Burnishing Brake

Pads in this section).

Burnishing Brake Pads

Brake pads (both hydraulic and auxiliary) must be

burnished to achieve full braking effectiveness.

Braking distance will be extended until brake pads

are properly burnished. To properly burnish the

brake pads, use the following procedure.

1. Choose an area large enough to safely accelerate

the ATV to 30 mph and to brake to a stop.

2. Accelerate to 30 mph; then compress brake

lever or apply the auxiliary brake to decelerate

to 0-5 mph.

! CAUTION

This hydraulic brake system is designed to use DOT

4 brake fluid only. If brake fluid must be added, care

must be taken as brake fluid is very corrosive to

painted surfaces.

! WARNING

Failure to properly burnish the brake pads could

lead to premature brake pad wear or brake loss.

Brake loss can result in severe injury.

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2-22

3. Repeat procedure on each brake system five

times until brake pads are burnished.

4. Adjust the auxiliary brake (if necessary).

5. Verify that the brakelight illuminates when the

hand lever is compressed or the brake pedal is

depressed.

Coolant

(500/650 H1/700 EFI)

The cooling system should be inspected daily for

leakage and damage. Also, the coolant level should

be checked periodically.

When filling the cooling system, use premixed Arc-

tic Cat Antifreeze. While the cooling system is

being filled, air pockets may develop; therefore, run

the engine for five minutes after the initial fill, shut

the engine off, and then fill the cooling system to the

bottom of the stand pipe in the radiator neck.

Checking/Replacing

V-Belt

REMOVING

1. Remove the right-side footrest (see Section 8).

2. Remove the cap screws securing the V-belt

cover noting the location of the differ-

ent-lengthed cap screws for installing purposes;

then using a rubber mallet, gently tap on the

cover tabs to loosen the cover. Remove the

cover.

CD078

NOTE: Note the location of the main engine

ground wire for installing purposes.

3. Remove the nut securing the movable drive

face; then remove the face. Account for the

spacer.

CC546

CC547

4. Remove the V-belt.

! CAUTION

After operating the ATV for the initial 5-10 minutes,

stop the engine, allow the engine to cool down, and

check the coolant level. Add coolant as necessary.

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2-23

2

CC550

INSTALLING

1. Spread the faces of the driven clutch by pushing

the inner face toward the engine while turning it

counterclockwise; then when the faces are sepa-

rated, insert a wedge (approximately 3/8 in.

thick) between the faces. Release the inner face.

CC549

2. Place the V-belt into position on the driven

clutch and over the front shaft.

CC550

NOTE: The arrow on the V-belt should point for-

ward.

3. Pinch the Vbelt together near its center and

slide the spacer and movable drive face onto the

driveshaft. Secure the drive face with a nut.

Tighten the nut to specifications (see Section

10).

CC552

NOTE: At this point, the wedge can be removed

from between the driven clutch faces.

4. Rotate the V-belt and clutches until the V-belt is

flush with the top of the driven clutch.

5. Place the V-belt cover gasket into position; then

install the cover and secure with the cap screws

making sure the different-lengthed cap screws

are in their proper location. Tighten the cap

screws to specifications (see Section 10).

CD083

NOTE: Make sure the main engine ground wire

is installed and secured in the proper location.

6. Secure the front fender to the footrest with the

two cap screws. Tighten securely.

7. Install the right-side footrest (see Section 8).

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2-24

Adjusting Differential

Lock Cable

NOTE: The following procedure does not

include the 400 TRV model.

If the differential or differential lock system has

been serviced, the differential lock cable should be

checked and/or adjusted for proper free-play.

To adjust the cable, use the following procedure.

1. With the differential lock selector in the

UNLOCK position, slide the rubber boot (A) off

the adjuster; then loosen the jam nut (B). Turn

the adjuster (C) to achieve 6.35 mm (0.250 in.)

of free-play measured at the end of the differen-

tial lock lever.

CD560A

2. Select the 2WD position on the front drive

selector switch; then turn the ignition switch to

the ON position and select the LOCK position

on the differential lock selector. The front drive

actuator should operate engaging four-wheel

drive.

NOTE: It may be necessary to turn the handle-

bar or rock the ATV forward and backward to align

the differential lock splines and allow engagement.

3. Return the differential lock selector to the

UNLOCK position and listen for the front drive

actuator to operate.

4. Turn the ignition switch to the OFF position.

Tighten the jam nut securely; then install the

boot on the adjuster.

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2-25

2

Exhaust Chart

NOTE: Use this chart in conjunction with the

procedure found in Valve/Tappet Clearance (700

EFI) in this section.

ATV2152A

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2-26

Intake Chart NOTE: Use this chart in conjunction with the

procedure found in Valve/Tappet Clearance (700

EFI) in this section.

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3-1

3

SECTION 3 — ENGINE/TRANSMISSION

TABLE OF

CONTENTS

Engine/Transmission ……….…………….…………….….. 3-2

Specifications (400 — Automatic Transmission)…….. 3-3

Specifications (400 — Manual Transmission).……….. 3-4

Specifications (500 — Automatic Transmission)…….. 3-6

Specifications (500 — Manual Transmission).……….. 3-7

Specifications (650 H1) ……………………….…………… 3-9

Specifications (700 EFI) ………..…………….…………. 3-10

400 (Manual Transmission)

Table of Contents ……………..………….……………. 3-11

400 (Automatic Transmission)

Table of Contents ……………..………….……………. 3-76

500 (Automatic Transmission)/650 H1

Table of Contents ……………..………….…………….. 3-130

500 (Manual Transmission)

Table of Contents ……………..………….…………….. 3-185

700 EFI Table of Contents……………………….……. 3-256

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3-2

Engine/Transmission

This section has been organized into sub-sections

which show a progression for the complete servic-

ing of the Arctic Cat ATV engine/transmission.

To service the center crankcase halves, the

engine/transmission must be removed from the

frame.

To service top-side, left-side, and right-side compo-

nents, the engine/transmission does not have to be

removed from the frame.

NOTE: Arctic Cat recommends the use of new

gaskets, lock nuts, and seals and lubricating all

internal components when servicing the

engine/transmission.

NOTE: Some photographs and illustrations used

in this section are used for clarity purposes only

and are not designed to depict actual conditions.

NOTE: Critical torque specifications are located

in Section 10.

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3-3

3

Specifications*

(400 — Automatic Transmission)

* Specifications subject to change without notice.

VALVES AND GUIDES

Valve Face Diameter (intake)

(exhaust)

30.6 mm (1.20 in.)

27.0 mm (1.06 in.)

Valve/Tappet Clearance

(cold engine)

(intake)

(exhaust)

0.05-0.10 mm

(0.002-0.004 in.)

0.22-0.27 mm

(0.009-0.011 in.)

Valve Guide/Stem

Clearance

(intake)

(exhaust)

0.010-0.037 mm

(0.0004-0.0015 in.)

0.030-0.057 mm

(0.0012-0.0022 in.)

Valve Guide/Valve Stem

Deflection

(wobble deflection)

(max) 0.35 mm (0.014 in.)

Valve Guide Inside Diameter 5.000-5.012 mm

(0.1969-0.1973 in.)

Valve Stem Outside

Diameter

(intake)

(exhaust)

4.975-4.990 mm

(0.1959-0.1965 in.)

4.955-4.970 mm

(0.1951-0.1957 in.)

Valve Stem Runout (max) 0.05 mm (0.002 in.)

Valve Head Thickness (min) 0.5 mm (0.02 in.)

Valve Stem End Length (min) 2.3 mm (0.09 in.)

Valve Face/Seat Width 0.9-1.1 mm

(0.035-0.043 in.)

Valve Seat Angle (intake)

(exhaust)

45°

45°

Valve Face Radial Runout (max) 0.03 mm (0.001 in.)

Valve Spring Free Length (min) 38.8 mm (1.53 in.)

Valve Spring Tension

@ 32.5 mm (1.28 in.)

(outer) 18.6-21.4 kg

(41-47 lb)

CAMSHAFT AND CYLINDER HEAD

Cam Lobe Height (min) (intake)

(exhaust)

32.830 mm

(1.293 in.)

32.830 mm

(1.293 in.)

Camshaft Journal Oil

Clearance

(max) 0.15 mm (0.0059 in.)

Camshaft Journal Holder

Inside

(right & center)

(left)

22.012-22.025 mm

(0.8666-0.8671 in.)

17.512-17.525 mm

(0.6894-0.6900 in.)

Camshaft Journal

Outside Diameter

(right & center)

(left)

21.959-21.980 mm

(0.8645-0.8654 in.)

17.466-17.484 mm

(0.6876-0.6883 in.)

Camshaft Runout (max) 0.10 mm (0.004 in.)

Rocker Arm Inside Diameter 12.000-12.018 mm

(0.472-0.473 in.)

Rocker Arm Shaft Outside Diameter 11.973-11.984 mm

(0.4714-0.4718 in.)

Cylinder Head Distortion (max) 0.05 mm (0.002 in.)

Cylinder Head Cover

Distortion

(max) 0.05 mm (0.002 in.)

CYLINDER, PISTON, AND RINGS

Piston Skirt/Cylinder Clearance 0.060-0.073 mm

(0.0024-0.0029 in.)

Cylinder Bore 82.000-82.015 mm

(3.2283-3.2289 in.)

Piston Diameter 15 mm (0.6 in.)

from Skirt End

81.930-81.945 mm

(3.2256-3.2262 in.)

Piston Ring Free End Gap

(min)

(1st Ring)

(2nd Ring)

8.9 mm

(0.3504 in.)

8.3 mm

(0.3268 in.)

Bore x Stroke 82 x 71.2 mm

(3.29 x 2.80 in.)

Cylinder Trueness (max) 0.05 mm (0.002 in.)

Piston Ring End Gap — Installed 0.33-0.61 mm

(0.013-0.024 in.)

Piston Ring to Groove

Clearance (max)

(1st)

(2nd)

0.180 mm

(0.0071 in.)

0.150 mm

(0.0059 in.)

Piston Ring Groove Width (1st)

(2nd)

(oil)

1.01-1.03 mm

(0.0398-0.0406 in.)

1.01-1.03 mm

(0.0398-0.0406 in.)

2.01-2.03 mm

(0.0791-0.0799 in.)

Piston Ring Thickness (1st)

(2nd)

0.97-0.99 mm

(0.0381-0.0389 in.)

0.97-0.99 mm

(0.0381-0.0389 in.)

Piston Pin Bore (max) 20.03 mm (0.789 in.)

Piston Pin Outside Diameter (min) 19.98 mm (0.787 in.)

CRANKSHAFT

Connecting Rod

(small end inside diameter)

(max) 20.04 mm

(0.7889 in.)

Connecting Rod

(big end side-to-side)

0.10-0.55 mm

(0.004-0.022 in.)

Connecting Rod (big end width) 21.95-22.00 mm

(0.8642-0.8661 in.)

Connecting Rod

(small end deflection)

(max) 3 mm (0.12 in.)

Crankshaft (web-to-web) 59.9-60.1 mm

(2.358-2.366 in.)

Crankshaft Runout (max) 0.08 mm (0.003 in.)

Oil Pressure at 60°C

(140°F) @ 3000 RPM

(above)

(below)

1.1 kg/cm² (16 psi)

1.5 kg/cm² (21 psi)

Cooling Fan Thermo-Switch

Operating Temperature

(off J on)

(on J off)

120°C (248°F)

110°C (230°F)

Engine Oil Thermo-Switch

Operating Temperature

(off J on)

(on J off)

160°C (320°F)

140°C (284°F)

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www.mymowerparts.com

3-4

Specifications*

(400 — Manual Transmission)

VALVES AND GUIDES

Valve Face Diameter (intake)

(exhaust)

30.6 mm (1.20 in.)

27.0 mm (1.06 in.)

Valve/Tappet Clearance

(cold engine)

(intake)

(exhaust)

0.05-0.10 mm

(0.002-0.004 in.)

0.22-0.27 mm

(0.009-0.011 in.)

Valve Guide/Stem

Clearance

(intake)

(exhaust)

0.010-0.037 mm

(0.0004-0.0015 in.)

0.030-0.057 mm

(0.0012-0.0022 in.)

Valve Guide/Valve Stem

Deflection

(wobble deflection)

(max) 0.35 mm (0.014 in.)

Valve Guide Inside Diameter 5.000-5.012 mm

(0.1969-0.1973 in.)

Valve Stem Outside

Diameter

(intake)

(exhaust)

4.975-4.990 mm

(0.1959-0.1965 in.)

4.955-4.970 mm

(0.1951-0.1957 in.)

Valve Stem Runout (max) 0.05 mm (0.002 in.)

Valve Head Thickness (min) 0.5 mm (0.02 in.)

Valve Stem End Length (min) 2.3 mm (0.09 in.)

Valve Face/Seat Width 0.9-1.1 mm

(0.035-0.043 in.)

Valve Seat Angle (intake)

(exhaust)

45°

45°

Valve Face Radial

Runout

(max) 0.03 mm (0.001 in.)

Valve Spring Free Length (min) 38.8 mm (1.53 in.)

Valve Spring Tension

@ 32.5 mm (1.28 in.)

(outer) 18.6-21.4 kg

(41-47 lb)

CAMSHAFT AND CYLINDER HEAD

Cam Lobe Height (min) (intake)

(exhaust)

32.830 mm (1.293 in.)

32.830 mm (1.293 in.)

Camshaft Journal Oil

Clearance

(max) 0.15 mm (0.0059 in.)

Camshaft Journal Holder

Inside

(right & center)

(left)

22.012-22.025 mm

(0.8666-0.8671 in.)

17.512-17.525 mm

(0.6894-0.6900 in.)

Camshaft Journal

Outside Diameter

(right & center)

(left)

21.959-21.980 mm

(0.8645-0.8654 in.)

17.466-17.484 mm

(0.6876-0.6883 in.)

Camshaft Runout (max) 0.10 mm (0.004 in.)

Rocker Arm Inside Diameter 12.000-12.018 mm

(0.472-0.473 in.)

Rocker Arm Shaft Outside Diameter 11.973-11.984 mm

(0.4714-0.4718 in.)

Cylinder Head Distortion (max) 0.05 mm (0.002 in.)

Cylinder Head Cover

Distortion

(max) 0.05 mm (0.002 in.)

CYLINDER, PISTON, AND RINGS

Piston Skirt/Cylinder

Clearance

0.060-0.073 mm

(0.0024-0.0029 in.)

Cylinder Bore 82.000-82.015 mm

(3.2283-3.2289 in.)

Piston Diameter 15 mm (0.6 in.) from

Skirt End

81.930-81.945 mm

(3.2256-3.2262 in.)

Piston Ring Free End Gap

(min)

(1st Ring)

(2nd Ring)

8.9 mm

(0.3504 in.)

8.3 mm

(0.3268 in.)

Bore x Stroke 82 x 71.2 mm

(3.29 x 2.80 in.)

Cylinder Trueness (max) 0.05 mm (0.002 in.)

Piston Ring End Gap — Installed 0.33-0.61 mm

(0.013-0.024 in.)

Piston Ring to Groove

Clearance (max)

(1st)

(2nd)

0.180 mm

(0.0071 in.)

0.150 mm

(0.0059 in.)

Piston Ring Groove Width (1st)

(2nd)

(oil)

1.01-1.03 mm

(0.0398-0.0406 in.)

1.01-1.03 mm

(0.0398-0.0406 in.)

2.01-2.03 mm

(0.0791-0.0799 in.)

Piston Ring Thickness (1st)

(2nd)

0.97-0.99 mm

(0.0381-0.0389 in.)

0.97-0.99 mm

(0.0381-0.0389 in.)

Piston Pin Bore (max) 20.03 mm (0.789 in.)

Piston Pin Outside Diameter (min) 19.98 mm (0.787 in.)

CRANKSHAFT

Connecting Rod

(small end inside diameter)

(max) 20.04 mm

(0.7889 in.)

Connecting Rod

(big end side-to-side)

0.10-0.55 mm

(0.004-0.022 in.)

Connecting Rod (big end width) 21.95-22.00 mm

(0.8642-0.8661 in.)

Connecting Rod

(small end deflection)

(max) 3 mm (0.12 in.)

Crankshaft (web-to-web) 59.9-60.1 mm

(2.358-2.366 in.)

Crankshaft Runout (max) 0.08 mm (0.003 in.)

Oil Pressure at 60°C

(140°F) @ 3000 RPM

(above)

(below)

0.6 kg/cm² (9 psi)

1.0 kg/cm² (14 psi)

Cooling Fan Thermo-Switch

Operating Temperature

(off J on)

(on J off)

120°C (248°F)

110°C (230°F)

Engine Oil Thermo-Switch

Operating Temperature

(off J on)

(on J off)

160°C (320°F)

140°C (284°F)

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

www.mymowerparts.com

3-5

3

* Specifications subject to change without notice.

CLUTCH

Clutch Release Screw 1/8 turn back

Drive Plate (fiber) Thickness (min) 2.62 mm (0.103 in.)

Drive Plate (fiber) Tab 13.25-13.95 mm

(0.52-0.55 in.)

Driven Plate (warpage) (max) 0.1 mm (0.004 in.)

Clutch Spring Length (min) 33.7 mm (1.33 in.)

Clutch Wheel Inside Diameter 140.0-140.2 mm

(5.511-5.520 in.)

Starter Clutch Shoe No groove at any part

Clutch Engagement RPM 1700 ± 200

Clutch Lock-Up RPM 3400 — 4000

Primary Reduction Ratio 2.392 (67/28)

Secondary Reduction Ratio 1.133 (17/15)

Final Reduction Ratio (front)

(rear)

3.6 (36/10)

3.6 (36/10)

Secondary Transmission

Reduction Ratio

(low)

(high)

2.435 (35/13 x 19/21)

1.296 (35/27)

Gear Ratios (1st)

(2nd)

(3rd)

(4th)

(5th)

(reverse)

3.083 (37/12)

1.933 (29/15)

1.388 (25/18)

1.095 (23/21)

0.913 (21/23)

2.833 (34/12)

Engine Fork to Groove

(side clearance)

0.1-0.3 mm

(0.004-0.012 in.)

Secondary Transmission Fork to Groove

(side clearance)

0.1-0.3 mm

(0.004-0.012 in.)

Reverse Fork to Groove

(side clearance)

0.1-0.3 mm

(0.004-0.012 in.)

Shift Fork Groove Width (#1 and #2) 4.5-4.6 mm

(0.177-0.181 in.)

(secondary transmission)

(reverse)

5.45-5.55 mm

(0.215-0.219 in.)

4.0-4.1 mm

(0.157-0.161 in.)

Shift Fork Thickness (#1 and #2)

(secondary transmission)

(reverse)

4.3-4.4 mm

(0.169-0.173 in.)

5.3-5.4 mm

(0.209-0.213 in.)

3.8-3.9 mm

(0.150-0.154 in.)

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

www.mymowerparts.com

3-6

Specifications*

(500 — Automatic Transmission)

* Specifications subject to change without notice.

VALVES AND GUIDES

Valve Face Diameter (intake)

(exhaust)

30.6 mm (1.20 in.)

27.0 mm (1.06 in.)

Valve/Tappet Clearance

(cold engine)

(intake)

(exhaust)

0.05-0.10 mm

(0.002-0.004 in.)

0.17-0.22 mm

(0.007-0.009 in.)

Valve Guide/Stem

Clearance

(intake)

(exhaust)

0.010-0.037 mm

(0.0004-0.0015 in.)

0.030-0.057 mm

(0.0012-0.0022 in.)

Valve Guide/Valve Stem

Deflection

(wobble deflection)

(max) 0.35 mm (0.014 in.)

Valve Guide Inside Diameter 5.000-5.012 mm

(0.1969-0.1973 in.)

Valve Stem Outside

Diameter

(intake)

(exhaust)

4.975-4.990 mm

(0.1959-0.1965 in.)

4.955-4.970 mm

(0.1951-0.1957 in.)

Valve Stem Runout (max) 0.05 mm (0.002 in.)

Valve Head Thickness (min) 0.5 mm (0.02 in.)

Valve Stem End Length (min) 2.3 mm (0.09 in.)

Valve Face/Seat Width 0.9-1.1 mm

(0.035-0.043 in.)

Valve Seat Angle (intake)

(exhaust)

45°

45°

Valve Face Radial Runout (max) 0.03 mm (0.001 in.)

Valve Spring Free Length (min) 38.8 mm (1.53 in.)

Valve Spring Tension

@ 31.5 mm (1.24 in.)

(outer) 18.6-21.4 kg

(41-47 lb)

CAMSHAFT AND CYLINDER HEAD

Cam Lobe Height (min) (intake)

(exhaust)

33.13 mm (1.304 in.)

33.20 mm (1.307 in.)

Camshaft Journal Oil

Clearance

(max) 0.15 mm (0.0059 in.)

Camshaft Journal Holder

Inside

(right & center)

(left)

22.012-22.025 mm

(0.8666-0.8671 in.)

17.512-17.525 mm

(0.6894-0.6900 in.)

Camshaft Journal

Outside Diameter

(right & center)

(left)

21.959-21.980 mm

(0.8645-0.8654 in.)

17.466-17.484 mm

(0.6876-0.6883 in.)

Camshaft Runout (max) 0.10 mm (0.004 in.)

Rocker Arm Inside Diameter 12.000-12.018 mm

(0.472-0.473 in.)

Rocker Arm Shaft Outside Diameter 11.973-11.984 mm

(0.4714-0.4718 in.)

Cylinder Head Distortion (max) 0.05 mm (0.002 in.)

Cylinder Head Cover

Distortion

(max) 0.05 mm (0.002 in.)

CYLINDER, PISTON, AND RINGS

Piston Skirt/Cylinder

Clearance

0.030-0.040 mm

(0.0011-0.0015 in.)

Cylinder Bore 87.500-87.515 mm

(3.4448-3.4454 in.)

Piston Diameter 15 mm (0.6 in.) from Skirt

End

87.465-87.480 mm

(3.4435-3.4440 in.)

Piston Ring Free End Gap

(min)

(1st Ring)

(2nd Ring)

9.0 mm

(0.35 in.)

9.5 mm

(0.37 in.)

Bore x Stroke 87.5 x 82 mm

(3.40 x 3.22 in.)

Cylinder Trueness (max) 0.05 mm (0.002 in.)

Piston Ring End Gap — Installed 0.35-0.63 mm

(0.014-0.025 in.)

Piston Ring to Groove

Clearance (max)

(1st)

(2nd)

0.180 mm

(0.0071 in.)

0.150 mm

(0.0059 in.)

Piston Ring Groove Width (1st)

(2nd)

(oil)

1.01-1.03 mm

(0.0398-0.0406 in.)

1.21-1.23 mm

(0.0476-0.0484 in.)

2.51-2.53 mm

(0.0988-0.0996 in.)

Piston Ring Thickness (1st)

(2nd)

0.97-0.99 mm

(0.0382-0.0389 in.)

1.17-1.19 mm

(0.046-0.047 in.)

Piston Pin Bore (max) 23.03 mm (0.907 in.)

Piston Pin Outside Diameter (min) 22.98 mm (0.905 in.)

CRANKSHAFT

Connecting Rod

(small end inside diameter)

(max) 23.04 mm

(0.9070 in.)

Connecting Rod

(big end side-to-side)

0.10-0.65 mm

(0.0039-0.0256 in.)

Connecting Rod (big end width) 24.95-25.00 mm

(0.9822-0.9842 in.)

Connecting Rod

(small end deflection)

(max) 3 mm (0.12 in.)

Crankshaft (web-to-web) 70.9-70.1 mm

(2.796-2.804in.)

Crankshaft Runout (max) 0.08 mm (0.003 in.)

Oil Pressure at 60°C

(140°F) @ 3000 RPM

(above)

(below)

1.3 kg/cm² (18 psi)

1.7 kg/cm² (24 psi)

Cooling Fan Thermo-Switch

Operating Temperature

(off J on)

(on J off)

88°C (190°F)

82°C (180°F) (min)

Engine Coolant Thermo-Switch

Operating Temperature

(off J on)

(on J off)

(approx)

115°C (239°F)

108°C (226°F)

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

www.mymowerparts.com

3-7

3

Specifications*

(500 — Manual Transmission)

VALVES AND GUIDES

Valve Face Diameter (intake)

(exhaust)

30.6 mm (1.20 in.)

27.0 mm (1.06 in.)

Valve/Tappet Clearance

(cold engine)

(intake)

(exhaust)

0.05-0.10 mm

(0.002-0.004 in.)

0.17-0.22 mm

(0.007-0.009 in.)

Valve Guide/

Stem Clearance

(intake)

(exhaust)

0.010-0.037 mm

(0.0004-0.0015 in.)

0.030-0.057 mm

(0.0012-0.0022 in.)

Valve Guide/Valve

Stem Deflection

(wobble deflection)

(max) 0.35 mm (0.014 in.)

Valve Guide Inside Diameter 5.000-5.012 mm

(0.1969-0.1973 in.)

Valve Stem Outside Diame-

ter

(intake)

(exhaust)

4.975-4.990 mm

(0.1959-0.1965 in.)

4.955-4.970 mm

(0.1951-0.1957 in.)

Valve Stem Runout (max) 0.05 mm (0.002 in.)

Valve Head Thickness (min) 0.5 mm (0.02 in.)

Valve Stem End Length (min) 1.7 mm (0.067 in.)

Valve Face/Seat Width 0.9-1.1 mm

(0.035-0.043 in.)

Valve Seat Angle (intake)

(exhaust)

45°

45°

Valve Face Radial Runout (max) 0.03 mm (0.001 in.)

Valve Spring Free Length (min) 38.8 mm (1.53 in.)

Valve Spring Tension

@ 31.5 mm (1.24 in.)

(outer) 18.2-21.0 kg

(40.1-46.3 lb)

CAMSHAFT AND CYLINDER HEAD

Cam Lobe Height

(min)

(intake)

(exhaust)

33.13 mm (1.304 in.)

33.20 mm (1.307 in.)

Camshaft Journal Oil

Clearance

(max) 0.15 mm (0.0059 in.)

Camshaft Journal

Holder Inside

(right & center)

(left)

22.012-22.025 mm

(0.8666-0.8671 in.)

17.512-17.525 mm

(0.6894-0.6900 in.)

Camshaft Journal

Outside Diameter

(right & center)

(left)

21.959-21.980 mm

(0.8645-0.8654 in.)

17.466-17.484 mm

(0.6876-0.6883 in.)

Camshaft Runout (max) 0.10 mm (0.004 in.)

Rocker Arm Inside

Diameter

12.000-12.018 mm

(0.472-0.473 in.)

Rocker Arm Shaft Outside Diameter 11.973-11.984 mm

(0.4714-0.4718 in.)

Cylinder Head Distor-

tion

(max) 0.05 mm (0.002 in.)

Cylinder Head Cover

Distortion

(max) 0.05 mm (0.002 in.)

CYLINDER, PISTON, AND RINGS

Piston Skirt/Cylinder

Clearance

0.030-0.040 mm

(0.0011-0.0015 in.)

Cylinder Bore 87.500-87.515 mm

(3.4448-3.4454 in.)

Piston Diameter

15 mm (0.6 in.) from Skirt End

87.465-87.480 mm

(3.4435-3.4440 in.)

Piston Ring

Free End Gap (min)

(1st Ring)

(2nd Ring)

9.0 mm

(0.35 in.)

9.5 mm

(0.37 in.)

Bore x Stroke 87.5 x 82 mm

(3.40 x 3.22 in.)

Cylinder Trueness (max) 0.05 mm (0.002 in.)

Piston Ring End Gap —

Installed

0.35-0.63 mm

(0.014-0.025 in.)

Piston Ring to Groove

Clearance (max)

(1st)

(2nd)

0.180 mm

(0.0071 in.)

0.150 mm

(0.0059 in.)

Piston Ring Groove Width (1st)

(2nd)

(oil)

1.01-1.03 mm

(0.0398-0.0406 in.)

1.21-1.23 mm

(0.0476-0.0484 in.)

2.51-2.53 mm

(0.0988-0.0996 in.)

Piston Ring Thickness (1st)

(2nd)

0.97-0.99 mm

(0.0382-0.0389 in.)

1.17-1.19 mm

(0.046-0.047 in.)

Piston Pin Bore (max) 23.03 mm (0.907 in.)

Piston Pin Outside Diame-

ter

(min) 22.98 mm (0.905 in.)

CRANKSHAFT

Connecting Rod

(small end inside diameter)

(max) 23.04 mm

(0.9070 in.)

Connecting Rod

(big end side-to-side)

0.10-0.65 mm

(0.0039-0.0256 in.)

Connecting Rod

(big end width)

24.95-25.00 mm

(0.9822-0.9842 in.)

Connecting Rod

(small end deflection)

(max) 3 mm (0.12 in.)

Crankshaft (web-to-web) 70.9-70.1 mm

(2.796-2.804in.)

Crankshaft Runout (max) 0.08 mm (0.003 in.)

Oil Pressure at 60°C

(140°F) @ 3000 RPM

(above)

(below)

1.2 kg/cm² (17 psi)

1.6 kg/cm² (23 psi)

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

www.mymowerparts.com

3-8

* Specifications subject to change without notice.

CLUTCH

Clutch Release Screw 1/4-1/2 turn back

Drive Plate (fiber) Thick-

ness

(min) 2.82 mm (0.1110 in.)

Drive Plate (fiber) Tab (min) 2.9 mm (0.507 in.)

Driven Plate (warpage) (max) 0.1 mm (0.004 in.)

Clutch Spring Length (min) 35.6 mm (1.40 in.)

Clutch Wheel

Inside Diameter

140.0-140.2 mm

(5.511-5.520 in.)

Starter Clutch Shoe No groove at any part

Clutch Engagement RPM 1700 ± 200

Clutch Lock-Up RPM 3700 ± 300

Primary Reduction Ratio 2.032 (63/31)

Secondary Reduction

Ratio

1.133 (17/15)

Final Reduction Ratio (front)

(rear)

3.6 (36/10)

3.6 (36/10)

Secondary Transmission

Reduction Ratio

(low)

(high)

2.419 (22/23 x 27/17 x

43/27)

1.592 (43/27)

Gear Ratios (1st)

(2nd)

(3rd)

(4th)

(5th)

(reverse)

3.09 (34/11)

1.75 (28/16)

1.2 (24/20)

0.875 (21/24)

0.724 (21/29)

2.636 (24/11 x 29/24)

Engine Fork to Groove

(side clearance)

0.1-0.3 mm

(0.004-0.012 in.)

Secondary Transmission Fork to Groove

(side clearance)

0.1-0.3 mm

(0.004-0.012 in.)

Reverse Fork to Groove

(side clearance)

0.1-0.3 mm

(0.004-0.012 in.)

Shift Fork Groove Width (#1 and #2) 5.5-5.6 mm

(0.217-0.220 in.)

(secondary transmission)

(reverse)

5.5-5.6 mm

(0.217-0.220 in.)

5.0-5.1 mm

(0.197-0.201 in.)

Shift Fork Thickness (#1 and #2) 5.3-5.4 mm

(0.209-0.213 in.)

(secondary transmission)

(reverse)

5.3-5.4 mm

(0.209-0.213 in.)

4.8-4.9 mm

(0.189-0.193 in.)

Thermostat Valve Open-

ing Temperature

73.5-76.5°C

(164-170°F)

Thermostat Valve Lift Over 3 mm (0.12 in.)

@ 90°C (194°F)

Cooling Fan

Thermo-Switch

Operating Temperature

(off J on)

(on J off)

88°C (190°F)

82°C (180°F) (min)

Engine Coolant

Thermo-Switch

Operating Temperature

(off J on)

(on J off)

(approx)

115°C (239°F)

108°C (226°F)

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

www.mymowerparts.com

3-9

3

Specifications*

(650 H1)

* Specifications subject to change without notice.

VALVES AND GUIDES

Valve Face Diameter (intake)

(exhaust)

31.6 mm (1.24 in.)

27.9 mm (1.10 in.)

Valve/Tappet Clearance (intake)

(cold engine) (exhaust)

0.1016 mm (0.004 in.)

0.1524 mm (0.006 in.)

Valve Guide/Stem (intake)

Clearance (exhaust)

0.013 mm (0.0005 in.)

0.013 mm (0.0005 in.)

Valve Guide/Valve (max)

Stem Deflection

(wobble method)

0.35 mm (0.014 in.)

Valve Guide Inside Diameter 5.000-5.012 mm

(0.1969-0.1973 in.)

Valve Stem Outside (intake)

Diameter

(exhaust)

4.972-4.987 mm

(0.1957-0.1963 in.)

4.972-4.987 mm

(0.1957-0.1963 in.)

Valve Stem Runout (max) 0.1 mm (0.0039 in.)

Valve Head Thickness (min) 2.3 mm (0.0906 in.)

Valve Stem End Length (min) 3.97 mm (0.156 in.)

Valve Face/Seat Width (intake)

(exhaust)

2.25 mm (0.0886 in.)

2.60 mm (0.1024 in.)

Valve Seat Angle (intake)

(exhaust)

45° 15’-45° 30’

45° 15’-45° 30’

Valve Face Radial Runout (max) 0.2 mm (0.0079 in.)

Valve Spring Free Length (min) 38.7 mm (1.524 in.)

Valve Spring Tension (outer)

@ 31.5 mm (1.24 in.)

19.0 kg (42 lb)

CAMSHAFT AND CYLINDER HEAD

Cam Lobe Height (min) (intake)

(exhaust)

13.97 mm (0.55 in.)

13.97 mm (0.55 in.)

Camshaft Journal Oil (max)

Clearance

0.04 mm (0.0016 in.)

Camshaft Journal (right & center)

Holder Inside

Diameter (left)

21.98-22.04 mm

(0.8654-0.8677 in.)

17.48-17.53 mm

(0.6882-0.6902 in.)

Camshaft Journal (right & center)

Outside Diameter

(left)

21.96-21.98 mm

(0.8646-0.8654 in.)

17.47-17.48 mm

(0.6878-0.6882 in.)

Camshaft Runout (max) 0.05 mm (0.002 in.)

Rocker Arm Inside Diameter 12.000-12.018 mm

(0.4724-0.4731 in.)

Rocker Arm Shaft Outside

Diameter

11.97-11.98 mm

(0.4713-0.4717 in.)

Cylinder Head Distortion (max) 0.05 mm (0.002 in.)

Cylinder Head Cover (max)

Distortion

0.05 mm (0.002 in.)

CYLINDER, PISTON, AND RINGS

Piston Skirt/Cylinder Clearance 0.045 mm (0.0018 in.)

Cylinder Bore 98 mm (3.858 in.)

Piston Diameter

15 mm (0.6 in.) from Skirt End

97.948-97.962 mm

(3.856-3.857 in.)

Piston Ring (1st ring)

Free End Gap

(2nd ring)

12.5 mm (0.492 in.)

12.5 mm (0.492 in.)

Bore x Stroke 97.9 x 85 mm

(3.86 x 3.35 in.)

Cylinder Trueness (max) 0.01 mm (0.004 in.)

Piston Ring End Gap — Installed 0.36 mm (0.014 in.)

Piston Ring to Groove (1st)

Clearance (max) (2nd)

0.03 mm (0.0012 in.)

0.03 mm (0.0012 in.)

Piston Ring Groove (1st)

Width

(2nd)

(oil)

1.202-1.204 mm

(0.0473-0.0474 in.)

1.202-1.204 mm

(0.0473-0.0474 in.)

2.01-2.03 mm

(0.0791-0.0799 in.)

Piston Ring Thickness (1st)

(2nd)

1.970-1.990 mm

(0.0776-0.0783 in.)

1.970-1.990 mm

(0.0776-0.0783 in.)

Piston Pin Bore (max) 23.0 mm (0.9055 in.)

Piston Pin Outside (min)

Diameter

22.99 mm (0.9051 in.)

CRANKSHAFT

Connecting Rod

(small end inside diameter) (max) 23.021 mm (0.9063 in.)

Connecting Rod

(big end side-to-side) 0.6 mm (0.024 in.)

Connecting Rod (big end width) 25 mm (0.9843 in.)

Connecting Rod @ 150 mm (5.9 in.)

(small end deflection) (max) 0.3 mm (0.0118 in.)

Crankshaft (web-to-web) 71 mm (2.79 in.)

Crankshaft Runout (max) 0.03 mm (0.0012 in.)

Oil Pressure at 60°C

(140°F) @3000 RPM

1.40-2.46 kg/cm²

(20-35 psi)

Cooling Fan (offJon)

Thermo-Switch (onJoff)

Operating Temperature

90°C (194°F)

75°C (167°F)

Engine Coolant (offJon)

Thermo-Switch (onJoff)

Operating Temperature (approx)

115°C (239°F)

108°C (226°F)

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3-10

Specifications*

(700 EFI)

* Specifications subject to change without notice.

VALVES AND GUIDES

Valve Face Diameter (intake)

(exhaust)

36.0 mm (1.42 in.)

33.0 mm (1.30 in.)

Valve/Tappet Clearance (intake)

(cold engine)

(exhaust)

0.10-0.20 mm

(0.004-0.008 in.)

0.20-0.30 mm

(0.008-0.012 in.)

Valve Guide/Stem (intake)

Clearance

(exhaust)

0.010-0.037 mm

(0.0004-0.0015 in.)

0.030-0.057 mm

(0.0012-0.0022 in.)

Valve Stem Deflection (max)

(wobble method)

0.35 mm (0.014 in.)

Valve Guide Inside Diameter 5.500-5.512 mm

(0.2165-0.2170 in.)

Valve Stem Outside (intake)

Diameter

(exhaust)

5.475-5.490 mm

(0.2156-0.2161 in.)

5.455-5.470 mm

(0.2148-0.2154 in.)

Valve Stem Runout (max) 0.05 mm (0.002 in.)

Valve Head Thickness (min) 0.5 mm (0.02 in.)

Valve Face/ (intake/exhaust)

Seat Width

0.9-1.1 mm

(0.035-0.043 in.)

Valve Face Radial Runout (max) 0.03 mm (0.001 in.)

Valve Spring Free Length (min) 46.1 mm (1.81 in.)

Valve Spring Tension

@ 36.35 mm (1.43 in.)

18.6-21.4 kg

(41.0-47.2 lb)

CAMSHAFT AND CYLINDER HEAD

Cam Lobe Height (min) (intake)

(exhaust)

36.03 mm (1.4185 in.)

35.00 mm (1.3780 in.)

Camshaft Journal Oil (max)

Clearance

0.150 mm (0.0059 in.)

Camshaft Journal Holder

Inside Diameter

22.012-22.025 mm

(0.8666-0.8671 in.)

Camshaft Journal Outside Diameter 21.972-21.993 mm

(0.8650-0.8659 in.)

Camshaft Runout (max) 0.10 mm (0.004 in.)

Cylinder Head Distortion (max) 0.05 mm (0.002 in.)

CYLINDER, PISTON, AND RINGS

Piston Skirt/Cylinder Clearance (max) 0.120 mm (0.0047 in.)

Cylinder Bore 98 mm (3.858 in.)

Piston Diameter

15 mm (0.6 in.) from Skirt End

102.000-102.015 mm

(4.0157-4.0163 in.)

Piston Ring (1st ring)

Free End Gap (min) (2nd ring)

8.3 mm (0.33 in.)

11.4 mm (0.45 in.)

Bore x Stroke 102 x 85 mm

(4.016 x 3.350 in.)

Cylinder Trueness (max) 0.05 mm (0.002 in.)

Piston Ring End Gap — Installed (min) 0.10 mm (0.004 in.)

Piston Ring to Groove (1st)

Clearance (max) (2nd)

0.180 mm (0.0071 in.)

0.150 mm (0.0059 in.)

Piston Ring Groove Width (1st)

(2nd)

(oil)

0.83-0.85 mm

(0.0327-0.0335 in.)

1.30-1.32 mm

(0.0512-0.0520 in.)

1.010-1.030 mm

(0.0398-0.0406 in.)

2.01-2.03 mm

(0.0791-0.0799 in.)

Piston Ring Thickness (1st)

(2nd)

1.08-1.10 mm

(0.0425-0.0433 in.)

0.970-0.990 mm

(0.0382-0.0390 in.)

Piston Pin Bore (max) 23.030 mm (0.9067 in.)

Piston Pin Outside (min)

Diameter

22.98 mm (0.9047 in.)

CRANKSHAFT

Connecting Rod (max)

(small end inside diameter)

23.040 mm

(0.9071 in.)

Connecting Rod (max)

(big end side-to-side)

1.0 mm (0.004 in.)

Connecting Rod (big end width) 25 mm (0.9843 in.)

Connecting Rod @ 150 mm (5.9 in.)

(small end deflection) (max) 0.3 mm (0.0118 in.)

Crankshaft (web-to-web) 72.9-73.1 mm

(2.87-2.88 in.)

Crankshaft Runout (max) 0.08 mm (0.003 in.)

Oil Pressure at 60°C

(140°F) @3000 RPM

1.40-1.80 kg/cm²

(20-26 psi)

Cooling Fan (offJon)

Thermo-Switch (onJoff)

Operating Temperature

93°C (199°F)

87°C (189°F)

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3-11

3

Table of Contents

(400 — Manual Transmission)

Removing Engine/Transmission……….……………... 3-11

Top-Side Components……………….…………….…….. 3-14

Removing Top-Side Components …….……………... 3-14

Left-Side Components ……………………….………….. 3-18

Removing Left-Side Components ….…………….….. 3-18

Right-Side Components …………….………….……….. 3-22

Removing Right-Side Components…..……………... 3-22

Center Crankcase Components……….……………... 3-26

Separating Crankcase Halves………….……………... 3-26

Disassembling Crankcase Half ……………………….. 3-27

Servicing Components………..……………..………….. 3-29

Assembling Crankcase Half ………………..………….. 3-56

Joining Crankcase Halves……………….………….….. 3-58

Installing Right-Side Components…….……………... 3-59

Installing Left-Side Components ………….………….. 3-62

Installing Top-Side Components ………………….….. 3-66

Installing Engine/Transmission…………….………….. 3-72

Removing Engine/

Transmission

Many service procedures can be performed without

removing the engine/transmission from the frame.

Closely observe the note introducing each sub-section

for this important information.

Secure the ATV on a support stand to elevate the

wheels.

1. Remove the seat.

2. Remove the negative cable from the battery; then

remove the positive cable. Remove the battery

vent hose; then remove the battery.

3. Remove the front and rear racks (see Section 8).

4. Remove the storage compartment and the steering

post access panel (see Section 8).

5. Drain the oil from beneath the engine/

transmission.

ATV-0109

6. Remove the front and rear fender panels (see

Section 8).

7. Disconnect the fuel hose (1), carburetor vent hose

(2), and the fuel pump vacuum hose (3) from the

carburetor.

CF178A

8. Disconnect the crankcase vent hose from the air

cleaner housing. Remove the clamp securing the

air intake hose to the carburetor; then remove the

housing.

NOTE: The air cleaner intake duct must be

removed prior to removing the air cleaner housing.

9. Remove the exhaust springs at the juncture in front

of the muffler; then slide the muffler rearward off

the mounting lugs.

AT THIS POINT

If the technician’s objective is to service/replace

left-side cover oil seals (3), front output joint oil

seal (1), rear output joint oil seal (1), and/or the oil

strainer (from beneath the engine/ transmission),

the engine/transmission does not have to be

removed from the frame.

! WARNING

Make sure the ATV is solidly supported on the

support stand to avoid injury.

! CAUTION

Battery acid is harmful if it contacts eyes, skin, or

clothing. Care must be taken whenever handling a

battery.

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3-12

CF138A

10. Remove the exhaust pipe and account for the

exhaust seal.

11. Remove the pinch screw and lock nut securing the

gear shift lever; then remove the gear shift lever

from the shaft on the engine.

CD003

CC934

12. Remove the E-clip securing the reverse/high/low

shift linkage; then remove the linkage. Account for

the bushing and washer.

CC935

13. Disconnect the speed sensor lead from the wiring

harness.

CF172A

14. Remove the four cap screws securing the rear

output joint to the transmission and push the shaft

rearward as far as possible.

CC119D

15. Detach the carburetor from the intake boot; then

secure the carburetor assembly away from the

engine.

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3-13

3

CC120D

NOTE: Use cable ties or tape to secure the car-

buretor assembly above the handlebar to keep it

from interfering with the removal procedure.

16. Remove the clamps securing the two oil cooler

hoses to the engine; then disconnect the hoses.

CC937

NOTE: After disconnecting the oil cooler hoses,

plug them to prevent leakage from the cooler.

17. Disconnect the high tension lead from the spark

plug. At the ignition coil, remove the cap screw,

nut, and the two wire leads; then remove the coil.

18. Disconnect the battery ground (negative) cable

from the crankcase cover; then disconnect the

positive cable from the starter motor.

AR600D

AR604D

19. Disconnect the following electrical components:

voltage regulator, CDI, indicator lights, and the

two wire leads for the oil temperature sensors.

CF165

CF164A

20. Loosen the clamp on the crankcase breather vent

hose; then disconnect the hose and remove it.

21. Remove the engine/transmission mounting

fasteners in the following sequence:

A. Lower front: One cap screw, nut, spacer, and

washer.

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3-14

CF175

B. Lower rear: One cap screw and nut with flat

washer.

CF176

22. By sliding the rear of the engine out first, remove

the engine/transmission from the left side of the

frame.

CC940

Top-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to removed from the frame for this procedure.

Removing Top-Side

Components

A. Valve Cover

B. Cylinder Head

NOTE: Remove the spark plug and timing

inspection plug; then using the recoil starter,

rotate the crankshaft to top-dead-center of the

compression stroke.

NOTE: Arctic Cat recommends the use of new

gaskets, lock nuts, and seals and lubricating all

internal components when servicing the

engine/transmission.

1. Remove the cap screws securing the two tappet

covers. Remove the two tappet covers. Account

for the O-rings.

MD1264

NOTE: Keep the mounting hardware with the

covers for assembly purposes or thread them back

into the head to keep them separated.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

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3-15

3

2. Remove the 12 cap screws securing the valve

cover to the head; account for the four rubber

washers on the top side cap screws. Remove the

valve cover. Account for and note the orientation

of the cylinder head plug; then remove the plug.

Note the location of two alignment pins.

MD1261

MD1354A

3. Loosen the cap screw on the end of the cam chain

tensioner; then remove the two Allen-head cap

screws securing the tensioner assembly and

remove the assembly. Account for a gasket.

MD1245

CD382

4. Remove the cam chain tensioner pivot cap screw

and washer.

MD1251

5. Bend the washer tabs and remove the two cap

screw securing the sprocket to the camshaft.

MD1136

MD1137

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3-16

6. Using an awl, rotate the C-ring in its groove until

it is out of the cylinder head; then remove the

C-ring.

NOTE: Care should be taken not to drop the

C-ring down into the crankcase.

MD1131

7. Note the timing marks for installing purposes; then

drop the sprocket off the camshaft. While holding

the chain, slide the sprocket and camshaft out of

the cylinder head. Account for an alignment pin.

MD1132

NOTE: Loop the chain over the cylinder and

secure it with a wire to keep it from falling into the

crankcase.

8. Remove the cam chain tensioner by lifting it from

the chain cavity; then remove the two lower nuts

securing the cylinder head to the cylinder, one in

front and one in rear.

MC1192

9. Remove the four cylinder head cap screws and

washers. Note that the two cap screws on the right

side of the cylinder head nearest the cam sprocket

are longer than the two cap screws on the left

(spark plug) side.

MD1167

10. Remove the cylinder head from the cylinder,

remove the gasket, and account for two alignment

pins.

MD1163

11. Remove the cam chain guide.

AT THIS POINT

To service valves and cylinder head, see

Servicing Top-Side Components sub-section.

AT THIS POINT

To inspect cam chain guide, see Servicing

Top-Side Components sub-section.

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3-17

3

MD1173

C. Cylinder

D. Piston

NOTE: Steps 1-11 in the preceding sub-section

must precede this procedure.

12. Remove the two nuts securing the right side of the

cylinder to the right-side crankcase half. Account

for the washers.

MD1226A

13. Lift the cylinder off the crankcase taking care not

to allow the piston to drop against the crankcase.

Account for the gasket and two alignment pins.

MD1214

14. Using an awl, remove one piston-pin circlip. Take

care not to drop it into the crankcase.

MD1213

15. Using the Piston Pin Puller (p/n 0644-328),

remove the piston pin. Account for the

opposite-side circlip. Remove the piston.

NOTE: It is advisable to remove the oppo-

site-side circlip prior to using the puller.

MD1219

NOTE: Support the connecting rod with rubber

bands to avoid damaging the rod or install the

Connecting Rod Holder (p/n 0444-006).

NOTE: If the existing rings will not be replaced

with new rings, note the location of each ring for

proper installation. When replacing with new rings,

replace as a complete set only. If the piston rings

must be removed, remove them in this sequence.

A. Starting with the top ring, slide one end of the

ring out of the ring-groove.

AT THIS POINT

To service cylinder, see Servicing Top-Side

Components sub-section.

! CAUTION

When removing the cylinder, be sure to support the

piston to prevent damage to the crankcase and pis-

ton.

! CAUTION

Do not allow the connecting rod to go down inside

the crankcase. If the rod is down inside the crank-

case and the crankshaft is rotated, severe damage

will result.

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3-18

B. Remove each ring by working it toward the

dome of the piston while rotating it out of the

groove.

Left-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to be removed from the frame for this procedure.

Removing Left-Side

Components

A. Cover/Stator Assembly

1. Remove the two cap screws securing the starter to

the crankcase; then remove the starter.

2. Remove the four cap screws securing the recoil

cover to the left-side cover; then remove recoil

cover.

CC942

3. Remove the flange nut securing the starter cup to

the crankshaft; then remove the starter cup.

Account for the O-ring inside the cup.

CC943

4. Remove the gear shift stopper (located above the

hi/low shift shaft). Account for the washer, spring,

and stopper.

CC944

NOTE: Remove the two cap screws securing the

speed sensor housing; then remove the housing.

Account for the gasket.

AT THIS POINT

To service piston, see Servicing Top-Side

Components sub-section.

AT THIS POINT

To service center crankcase components only,

proceed to Removing Left-Side Components.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

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3-19

3

CF109

5. Remove the cap screws securing the left-side

cover to the crankcase (fifteen 6 mm and one 8

mm); then using an appropriate slide hammer and

Slide Hammer 6 mm Adapter (p/n 0644-310),

remove the left-side cover.

CC945

CC946

NOTE: Inspect the inside of the left-side cover

for any shaft washers and spacers that may have

come off with the cover. Make sure they are

returned to their respective shafts. Also, make

sure the alignment pins are in place.

B. Rotor/Flywheel

C. Idle Gear Assembly

NOTE: Steps 1-5 in the preceding sub-section

must precede this procedure.

NOTE: For steps 6-14, refer to illustration

CC948B.

NOTE: To aid in installing, it is recommended

that the assemblies are kept together and IN

ORDER.

CC948B

6. Remove the nut securing the rotor/flywheel (I) to

the crankshaft; then install the crankshaft protector.

CC514D

7. Using the Magneto Rotor Remover (p/n 0444-075),

remove the rotor/flywheel assembly from the

crankshaft. Account for the key; then remove the

starter clutch gear assembly (H) w/washer.

NOTE: Care must be taken that the remover is

threaded all the way onto the rotor/flywheel.

CC949

KEY

A. Driven Gear

B. Drive Gears #1 & #2

C. Idler Gear

D. Shift Fork with Pin

E. Shift Shaft

F. Starter Idler Gear #1

G. Starter Idler Gear #2

H. Starter Clutch Gear

Assembly

I. Rotor/Flywheel

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3-20

8. Remove the starter idler gears (F & G) from the

crankcase; then remove the pin.

CC950

CC951

9. Remove the idler gear (C). Account for a washer

and a spacer.

CC952

10. Remove the shift fork and pin (D).

CC953

11. Remove drive gear #2 (B). Account for washers on

both sides of the gear.

CC954

12. Remove the sliding dog from the driveshaft.

CC966

13. Remove the circlip, washer, and drive gear #1 (B)

from the driveshaft; then account for the bushing

and the spacer.

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3-21

3

CC955

CC956

NOTE: Note the orientation of the oil holes on

the driveshaft and bushing for installing purposes.

CD552

CC958

14. Remove driven gear (A) from the output shaft.

CC959

15. Remove the gear shift shaft. Account for two

shims.

CC960

CC961

16. Remove the secondary stopper camshaft assembly.

Account for the two shims.

CC962

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3-22

NOTE: Note the alignment dots on the cam plate

and camshaft for installing purposes.

CC963

17. Remove the Allen-head cap screws from the

neutral switch base; then remove the switch.

Account for the two contacts and springs.

CC964

CC965

Right-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to be removed from the frame for this procedure.

Removing Right-Side

Components

A. Oil Filter

1. Using an adjustable Oil Filter Wrench (p/n

0644-389), remove the oil filter.

CC967

2. If the engine has not been removed, lay the ATV

on its left side; then remove the cap screws

securing the right-side cover to the crankcase.

Remove the cover. Account for the gasket and for

two alignment pins.

AT THIS POINT

To service center crankcase components only,

proceed to Removing Right-Side Components.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

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3-23

3

CC968

NOTE: When removing the right-side cover,

account for the release roller guide that it does not

fall and cause damage.

CC070D

B. Primary Clutch Shoe

C. Primary Clutch

D. Centrifugal Clutch Housing

NOTE: Steps 1-2 in the preceding sub-section

must precede this procedure.

3. Remove the cap screw securing the clutch release

arm and remove the arm; then in a crisscross

pattern, remove the four cap screws securing the

clutch release roller assembly.

NOTE: Scribe a reference mark with a marker on

the arm and shaft to aid in installing.

CC073D

CC074D

4. Remove the release roller assembly. Account for

four springs.

5. Remove the centrifugal clutch-shoe nut (left-hand

threads) and washer from the driveshaft; then

using a primary clutch shoe remover, remove the

clutch shoe.

6. Remove the primary drive one-way clutch from

the centrifugal clutch housing. Note the word

OUTSIDE stamped on the clutch for assembly

purposes.

CF043

7. Using the Clutch Sleeve Hub Holder (p/n

0444-007) to hold the clutch sleeve hub, remove

the nut and washer.

! CAUTION

Care must be taken when removing the nut; it has

“left-hand” threads.

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3-24

CC076D

8. Scribe a line across the primary clutch assembly to

aid in installing.

CC077D

9. Simultaneously, remove the primary clutch

assembly and centrifugal clutch housing from

their respective shafts. Account for the shims

and washers.

CC078D

CC969

E. Gear Shift Cam Plate/Guide

F. Oil Pump/Oil Strainer

NOTE: Steps 1-9 in the preceding sub-sections

must precede this procedure.

NOTE: Note that the bushings on the crankshaft

are directional and that the oil holes align for

installing purposes.

10. Remove the nut and washer securing the oil pump

drive gear to the crank balancer shaft; then remove

the gear and account for the pin, gear, washer, and

nut.

NOTE: Note that the raised hub of the gear is

directed inward for installing purposes.

CC971

AT THIS POINT

To service clutch components, see Servicing

Right-Side Components sub-section.

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3-25

3

CC972

11. Remove the gear shift shaft from the crankcase.

CC973

12. Release the tension from the gear shift cam

stopper arm spring.

CC974

13. Remove the cap screw securing the gear shift cam

plate and guide to the gear shift cam; then remove

the cam plate and guide. Account for the guide and

five pins.

CC975

NOTE: For general servicing, it is advisable to

disassemble, clean, and inspect the oil pump. If

any wear or damage is suspected, replace the oil

pump.

14. Remove the circlip securing the oil pump driven

gear; then remove the gear. Account for the pin

and the washer.

NOTE: Always use a new circlip when installing

the oil pump driven gear.

CC976

CC977

15. Remove the three Phillips-head screws securing

the oil pump; then remove the oil pump.

! CAUTION

If servicing of the engine/transmission is due to a

lubrication-related problem, replace the oil pump.

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3-26

CC978

16. Remove the cap screws securing the oil strainer

cap; then remove the cap. Account for the O-ring.

CC091D

17. Remove the two Phillips-head cap screws securing

the strainer.

CC163D

Center Crankcase

Components

NOTE: This procedure cannot be done with the

engine/transmission in the frame. Complete

Removing procedures for Top-Side, Left-Side, and

Right-Side must precede this procedure.

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

Separating Crankcase

Halves

1. Remove the five right-side 6 mm cap screws (one

from inside the case) securing the crankcase

halves; then remove the seven left-side 6 mm cap

screws. Note the location of the different-lengthed

cap screws and a wiring form.

CC979

CC980

2. Remove the four left-side 8 mm cap screws (two

from inside the case) securing the crankcase

halves. Note the location of the different-lengthed

cap screws.

AT THIS POINT

To service center crankcase components only,

proceed to Separating Crankcase Halves.

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3-27

3

CC981

3. Remove the four right-side 8 mm cap screws

securing the crankcase halves.

CC982

4. Using an appropriate crankcase separator and

tapping lightly with a rubber mallet, separate the

crankcase halves. Account for two alignment

pins, a C-ring, and two washers.

NOTE: To keep the shaft/gear assemblies intact

for identification, tap the shafts toward the

left-side crankcase half when separating the

halves.

CC983

CC984

Disassembling

Crankcase Half

NOTE: For steps 1-10, refer to illustration

CC985B.

NOTE: To aid in assembling, it is recommended

that the assemblies are kept together and IN

ORDER.

CC985B

1. Remove the output shaft assembly (J).

2. Remove the two shift shafts (E and H).

3. Remove the reverse shift cam (G) and spacer.

4. Disengage four forks from the gear shift cam

(F); then remove the reverse shifter fork.

KEY

A. Crank Balancer Assembly

B. Crankshaft

C. Balancer Drive Gear with

Pin

D. Countershaft Assembly

E. Shift Shaft with Fork

F. Gear Shift Cam

G. Reverse Shift Cam

H. Shift Shaft with 3 Forks

I. Driveshaft Assembly

J. Output Shaft Assembly

K. Reverse Idle Gear

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3-28

CC986

5. Remove the gear shift cam (F).

CC987

6. Remove the three remaining forks noting their

positions for assembling purposes.

7. Remove the reverse idle gear (K) w/shaft.

Account for the bushing, two washers, and the

circlip.

8. Simultaneously, remove the driveshaft assembly

(I) and countershaft assembly (D).

NOTE: For efficiency, if the driveshaft and/or

countershaft are not being serviced, it is prefera-

ble to leave them assembled. The technician

should use discretion and sound judgment.

NOTE: Note the alignment marks on the crank

balancer driven gear and balancer drive gear to aid

in assembly.

CC166D

9. Remove the driven gear from the crank balancer

assembly (A). Account for a key.

CD832A

NOTE: Note that the shoulder of the gear is

directed to the outside for assembling purposes.

10. Remove the crank balancer assembly (A).

NOTE: When removing the crank balancer

assembly, rotate the crankshaft counterweight

away from the crank balancer assembly counter-

weight.

11. Using an appropriate crankshaft remover, push

the crankshaft assembly out of the crankcase.

CC115D

AT THIS POINT

To service gear shift forks, see Servicing Center

Crankcase Components sub-section.

AT THIS POINT

To service the driveshaft and/or countershaft, see

Servicing Center Crankcase Components

sub-section.

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3-29

3

12. To remove the output shaft and gear, remove the

nut, slide the gear off the shaft (account for a

shim or shims), and drive the shaft out with a

plastic mallet (account for a shim or shims).

CC482D

Table of Contents

(Servicing Components)

NOTE: Critical engine/transmission specifica

tions are located at the beginning of this section.

Servicing Top-Side Components ……..……………... 3-29

Valve Assembly ………………….…………….……….. 3-29

Piston Assembly ……….…………….…………….….. 3-32

Cylinder/Cylinder Head Assembly ………………… 3-34

Servicing Left-Side Components .…………….…….. 3-37

Recoil Starter ………………………….…………….….. 3-37

Measuring Shift Fork (Thickness) ………….…….. 3-40

Measuring Shift Fork Groove (Width) …………… 3-41

Measuring Shift Fork To Groove

(Side Clearance) ……….………….…………….…….. 3-41

Servicing Right-Side Components ………………….. 3-41

Primary Clutch Assembly…………..………….…….. 3-41

Inspecting Oil Pump ..…………….…………….…….. 3-44

Servicing Center Crankcase Components ……….. 3-44

Secondary Gears ………………….………….……….. 3-44

Crankshaft Assembly ……………….…………….….. 3-46

Driveshaft…………….………………………..………….. 3-47

Countershaft …………..…………….…………….…….. 3-53

Servicing Top-Side

Components

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

VALVE ASSEMBLY

When servicing valve assembly, inspect valve seats,

valve stems, valve faces, and valve stem ends for

pits, burn marks, or other signs of abnormal wear.

NOTE: Whenever a valve is out of tolerance, it

must be replaced.

Cleaning/Inspecting Valve Cover

NOTE: If the valve cover cannot be trued, the cyl-

inder head assembly must be replaced.

1. Wash the valve cover in parts-cleaning solvent.

2. Place the valve cover on the Surface Plate (p/n

0644-016) covered with #400 grit wet-or-dry

sandpaper. Using light pressure, move the valve

cover in a figure eight motion. Inspect the seal-

ing surface for any indication of high spots. A

high spot can be noted by a bright metallic fin-

ish. Correct any high spots before assembly by

continuing to move the valve cover in a figure

eight motion until a uniform bright metallic fin-

ish is attained.

CC130D

AT THIS POINT

To service crankshaft assembly, see Servicing

Center Crankcase Components sub-section.

! CAUTION

Do not remove the remaining output shaft assembly

unless absolutely necessary. If the shaft is removed,

the shaft nut must be replaced with a new one and

the shaft must be re-shimmed.

! CAUTION

Do not remove an excessive amount of the sealing

surface or damage to the camshaft will result.

Always check camshaft clearance when resurfacing

the valve cover.

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Removing Valves

NOTE: Keep all valves and valve components as

a set. Note the original location of each valve set

for use during installation. Return each valve set to

its original location during installation.

1. Using a valve spring compressor, compress the

valve springs and remove the valve cotters.

Account for an upper spring retainer.

CC994

2. Remove the valve seal and the lower remaining

spring seat. Discard the valve seal.

CC134D

CC136D

NOTE: The valve seals must be replaced.

3. Remove the valve springs; then invert the cylin-

der head and remove the valves.

Measuring Valve Stem Runout

1. Support each valve stem end with the V Blocks

(p/n 0644-022); then check the valve stem

runout using a dial indicator.

ATV-1082

2. Maximum runout must not exceed specifica-

tions.

Measuring Valve Stem

Outside Diameter

1. Using a micrometer, measure the valve stem

outside diameter.

2. Acceptable diameter range (intake valve) must

be within specifications.

3. Acceptable diameter range (exhaust valve) must

be within specifications.

Measuring Valve Face/Seat Width

1. Using a micrometer, measure the width of the

valve face.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

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3-31

3

ATV-1004

2. Acceptable width range must be within specifi-

cations.

Measuring Valve Face Radial

Runout

1. Mount a dial indicator on the surface plate; then

place the valve stem on a set of V blocks.

2. Position the dial indicator contact point on the

outside edge of the valve face; then zero the

indicator.

ATV1082A

3. Rotate the valve in the V blocks.

4. Maximum runout must not exceed specifica-

tions.

Measuring Valve Guide/Valve Stem

Deflection (Wobble Method)

1. Mount a dial indicator and base on the surface

plate; then place the cylinder head on the surface

plate.

2. Install the valve into the cylinder head; then

position the dial indicator contact point against

the outside edge of the valve face. Zero the indi-

cator.

CC131D

3. Push the valve from side to side; then from top

to bottom.

4. Maximum “wobble” deflection must not exceed

specifications.

Measuring Valve Guide

(Inside Diameter)

1. Insert a snap gauge 1/2 way down into each

valve guide bore; then remove the gauge and

measure it with a micrometer.

2. Acceptable inside diameter range must be

within specifications.

3. If a valve guide is out of tolerance, it must be

replaced.

Servicing Valves/Valve

Guides/Valve Seats

If valves, valve guides, or valve seats require servic-

ing or replacement, Arctic Cat recommends that the

components be taken to a qualified machine shop

for servicing.

Measuring Rocker Arm

(Inside Diameter)

1. Using a dial calipers, measure the inside diame-

ter of the rocker arm.

2. Acceptable inside diameter range must be

within specifications.

Measuring Rocker Arm Shaft

(Outside Diameter)

1. Using a micrometer, measure the outside diame-

ter of the rocker arm shaft.

! CAUTION

If any valve is discolored or pitted or if the seating

surface is worn, the valve must be replaced. Do not

attempt to grind a valve or severe engine damage

may occur.

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3-32

2. Acceptable outside diameter range must be

within specifications.

Installing Valves

1. Apply grease to the inside surface of the valve

seals; then place a lower spring seat and valve

guide seal over each valve guide.

CC144D

2. Insert each valve into its original valve location.

3. Install the valve springs with the painted end of

the spring facing away from the cylinder head.

NOTE: If the paint is not visible, install the ends

of the springs with the closest wound coils toward

the head.

ATV-1011A

4. Place a spring retainer over the valve springs;

then using the valve spring compressor, com-

press the valve springs and install the valve cot-

ters.

CC994

PISTON ASSEMBLY

NOTE: Whenever a piston, rings, or pin are out

of tolerance, they must be replaced.

Cleaning/Inspecting Piston

1. Using a non-metallic carbon removal tool,

remove any carbon buildup from the dome of

the piston.

2. Inspect the piston for cracks in the piston pin,

dome, and skirt areas.

3. Inspect the piston for seizure marks or scuffing.

Repair with #400 grit wet-or-dry sandpaper and

water or honing oil.

NOTE: If scuffing or seizure marks are too deep

to correct with the sandpaper, replace the piston.

4. Inspect the perimeter of each piston for signs of

excessive “blowby.” Excessive “blowby” indi-

cates worn piston rings or an out-of-round cylin-

der.

Removing Piston Rings

1. Starting with the top ring, slide one end of the

ring out of the ring-groove.

CC400D

2. Remove each ring by working it toward the

dome of the piston while rotating it out of the

groove.

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3-33

3

NOTE: If the existing rings will not be replaced

with new ones, note the location of each ring for

proper installation. When installing new rings,

install as a complete set only.

Cleaning/Inspecting Piston Rings

1. Take an old piston ring and snap it into two

pieces; then grind the end of the old ring to a 45°

angle and to a sharp edge.

2. Using the sharpened ring as a tool, clean carbon

from the ring-grooves. Be sure to position the

ring with its tapered side up.

Measuring Piston-Ring End Gap

(Installed)

1. Place each piston ring in the wear portion of the

cylinder. Use the piston to position each ring

squarely in the cylinder.

2. Using a feeler gauge, measure each piston-ring

end gap. Acceptable ring end gap must be

within specifications.

CC995

Measuring Piston Pin (Outside

Diameter) and Piston-Pin Bore

1. Measure the piston pin outside diameter at each

end and in the center. If measurement is not

within specifications, the piston pin must be

replaced.

ATV-1070

2. Insert an inside dial indicator into the piston-pin

bore. The diameter must not exceed specifica-

tions. Take two measurements to ensure accu-

racy.

ATV-1069

Measuring Piston Skirt/

Cylinder Clearance

1. Measure the cylinder front to back in six places.

CD325

2. Measure the corresponding piston diameter at a

point 15 mm (0.6 in.) above the piston skirt at a

right angle to the piston-pin bore. Subtract this

measurement from the measurement in step 1.

The difference (clearance) must be within speci-

fications.

! CAUTION

Improper cleaning of the ring-grooves by the use of

the wrong type of ring-groove cleaner will result in

severe damage to the piston.

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3-34

Installing Piston Rings

1. Install ring expander (4) in the bottom groove of

the piston; then install the thin oil rings (3) over

the expander making sure the expander ends do

not overlap. Stagger the end gaps of the upper

and lower thin oil rings according to the illustra-

tion.

NOTE: Note the direction of the exhaust side of

the piston (5) for correct ring end gap orientation.

ATV-1085B

2. Install the compression rings (1 and 2) so the let-

ter on the top surface of each ring faces the

dome of the piston. Rotate the rings until the

ring end gaps are on directly opposite sides of

the piston (see illustration).

NOTE: The chrome (silver) ring should be

installed in the top position.

726-306A

CYLINDER/CYLINDER HEAD

ASSEMBLY

NOTE: If the cylinder/cylinder head assembly

cannot be trued, they must be replaced.

Cleaning/Inspecting Cylinder Head

1. Using a non-metallic carbon removal tool,

remove any carbon buildup from the combus-

tion chamber being careful not to nick, scrape,

or damage the combustion chamber or the seal-

ing surface.

2. Inspect the spark plug hole for any damaged

threads. Repair damaged threads using a

“heli-coil” insert.

3. Place the cylinder head on the surface plate cov-

ered with #400 grit wet-or-dry sandpaper. Using

light pressure, move the cylinder head in a fig-

ure eight motion. Inspect the sealing surface for

any indication of high spots. A high spot can be

noted by a bright metallic finish. Correct any

high spots before assembly by continuing to

move the cylinder head in a figure eight motion

until a uniform bright metallic finish is attained.

CC996

Measuring Cylinder Head

Distortion

1. Remove any carbon buildup in the combustion

chamber.

2. Lay a straightedge across the cylinder head; then

using a feeler gauge, check the distortion factor

between the head and the straightedge.

3. Maximum distortion must not exceed specifica-

tions.

! CAUTION

Incorrect installation of the piston rings will result in

engine damage.

! CAUTION

The cylinder head studs must be removed for this

procedure.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

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3

CC141D

Cleaning/Inspecting Cylinder

1. Wash the cylinder in parts-cleaning solvent.

2. Inspect the cylinder for pitting, scoring, scuff-

ing, warpage, and corrosion. If marks are found,

repair the surface using a cylinder hone (see

Honing Cylinder in this sub-section).

3. Place the cylinder on the surface plate covered

with #400 grit wet-or-dry sandpaper. Using light

pressure, move the cylinder in a figure eight

motion. Inspect the sealing surface for any indi-

cation of high spots. A high spot can be noted by

a bright metallic finish. Correct any high spots

before assembly by continuing to move the cyl-

inder in a figure eight motion until a uniform

bright metallic finish is attained.

CC997

Inspecting Cam Chain Guide

1. Inspect cam chain guide for cuts, tears, breaks,

or chips.

2. If the chain guide is damaged, it must be

replaced.

Honing Cylinder

1. Using a slide gauge and a dial indicator or a

snap gauge, measure the cylinder bore diameter

in three locations from top to bottom and again

from top to bottom at 90° from the first mea-

surements for a total of six measurements. The

trueness (out-of-roundness) is the difference

between the highest and lowest reading. Maxi-

mum trueness (out-of-roundness) must not

exceed specifications.

CC127D

2. Wash the cylinder in parts-cleaning solvent.

3. Inspect the cylinder for pitting, scoring, scuff-

ing, and corrosion. If marks are found, repair the

surface using a ball hone.

NOTE: To produce the proper 60° cross-hatch

pattern, use a low RPM drill (600 RPM) at the rate

of 30 strokes per minute. If honing oil is not avail-

able, use a lightweight petroleum-based oil. Thor-

oughly clean cylinder after honing using soap and

hot water. Dry with compressed air; then immedi-

ately apply oil to the cylinder bore. If the bore is

severely damaged or gouged, replace the cylinder.

CC998

4. If any measurement exceeds the limit, bore the

cylinder and install an oversized piston or replace

the cylinder.

NOTE: Oversized piston and rings are available

in 0.50 mm (0.020 in.) only.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

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CC127D

Measuring Camshaft Runout

NOTE: If the camshaft is out of tolerance, it must

be replaced.

1. Place the camshaft on a set of V blocks; then

position the dial indicator contact point against

the shaft and zero the indicator.

CC283D

2. Rotate the camshaft and note runout; maximum

tolerance must not exceed specifications.

Measuring Camshaft Lobe Height

1. Using a calipers, measure each cam lobe height.

ATV1013A

2. The lobe heights must not exceed minimum

specifications.

Inspecting Camshaft Bearing

Journal

1. Inspect the bearing journal for scoring, seizure

marks, or pitting.

2. If excessive scoring, seizure marks, or pitting is

found, the cylinder head assembly must be

replaced.

Measuring Camshaft to

Cylinder Head Clearance

1. Remove the adjuster screws and jam nuts.

CC005D

2. Place a strip of plasti-gauge in each of the cam-

shaft lands in the cylinder head.

3. Place the valve cover on the cylinder head and

secure with the valve cover cap screws. Tighten

securely.

NOTE: Do not rotate the camshaft when measur-

ing clearance.

4. Remove the cap screws securing the valve cover

to the cylinder; then remove the valve cover and

camshaft.

MD1261

5. Match the width of the plasti-gauge with the

chart found on the plasti-gauge packaging to

determine camshaft to cylinder head and valve

cover clearance.

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3-37

3

CC145D

6. If clearance is excessive, measure the journals of

the camshaft.

CC287D

NOTE: If the journals are worn, replace the cam-

shaft; then measure the clearance again. If it is still

out of tolerance, replace the cylinder head.

Inspecting Camshaft Spring/Drive

Pin

1. Inspect the spring and drive pin for damage.

CF061A

CF060A

2. If damaged, the camshaft must be replaced.

Servicing Left-Side

Components

RECOIL STARTER

0737-034

Removing/Disassembling

1. Remove the cap screws securing the recoil

starter assembly to the left-side cover; then

remove the starter.

! WARNING

Always wear safety glasses when servicing the

recoil starter.

KEY

1. Recoil Starter

Assy

2. Reel

3. Spiral Spring

4. Ratchet Assy

5. Ratchet

6. Ratchet Guide

7. Nut

8. Rope Assy

9. Cap Screw

10. Starter Cup

11. Nut

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CC039D

2. Rotate the reel counterclockwise until the notch

of the reel is near the rope guide in the case.

Guide the rope into the notch and slowly allow

the reel to retract until all spiral spring tension is

released.

B600D

3. Remove the nut.

B601D

4. Slowly release the friction plate and lift the plate

with ratchet guide free of the recoil case; then

remove the ratchet guide from the friction plate.

B602D

5. Remove the spring cover, spring, and shaft.

B603D

6. Remove the ratchet and account for the pin.

B604D

7. Carefully lift the reel free of the case making

sure the spiral spring does not accidentally dis-

engage from the case.

! WARNING

During the disassembly procedure, continuous

downward pressure must be exerted on the reel so it

does not accidentally disengage and cause injury.

! CAUTION

During the disassembly procedure, make sure all

spring tension is released before continuing.

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3

B605D

8. Remove the protective cover from the starter

handle and pull the rope out of the handle; then

untie the knot in the rope and remove the han-

dle.

NOTE: Do not remove the spiral spring unless

replacement is necessary. It should be visually

inspected in place to save time. If replacement is

necessary, follow steps 9-10.

9. Remove the spiral spring from the case by lift-

ing the spring end up and out. Hold the remain-

der of the spring with thumbs and alternately

release each thumb to allow the spring to gradu-

ally release from the case.

10. Unwind the rope from the reel and remove the

rope.

Cleaning and Inspecting

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all components.

2. Inspect the springs and ratchet for wear or dam-

age.

3. Inspect the reel and case for cracks or damage.

4. Inspect the shaft for wear, cracks, or damage.

5. Inspect the rope for breaks or fraying.

6. Inspect the spiral spring for cracks, crystalliza-

tion, or abnormal bends.

7. Inspect the handle for damage, cracks, or deteri-

oration.

Assembling/Installing

1. If removed, insert the spiral spring into the case

with the outer end of the spring around the

mounting lug in the case; then wind it in a coun-

terclockwise direction until the complete spring

is installed.

NOTE: The spiral spring must seat evenly in the

recoil case.

B606D

2. Insert the rope through the hole in the reel and

tie a knot in the end; then wrap the rope counter-

clockwise around the reel leaving approximately

50 cm (20 in.) of rope free of the reel.

3. Apply low-temperature grease to the spring and

hub.

4. Thread the end of the rope through the guide

hole of the case; then thread the rope through the

handle and secure it with a double knot. Install

the protective cover into the handle.

5. Align the inner hook of the spiral spring with the

notch in the reel.

B605D

6. Install the ratchet onto its pin making sure the

end is properly installed on the reel.

! WARNING

Care must be taken when lifting the reel free of the

case. Wear safety glasses to avoid injury.

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B604D

7. Install the shaft, spring, and the spring cover.

B603D

8. Install the friction plate with the ratchet guide

fitting into the ratchet.

B602D

9. While pushing down on the reel, install the nut.

Tighten securely.

B601D

10. With the 50 cm (20 in.) of rope exposed, hook

the rope in the notch of the reel.

11. Rotate the reel four turns counterclockwise; then

release the rope from the notch and allow the

rope to retract.

12. Pull the rope out two or three times to check for

correct tension.

NOTE: Increasing the rotations in step 11 will

increase spring tension.

13. Place the recoil starter assembly into position on

the left-side cover; then tighten the cap screws

to specifications.

CC039D

MEASURING SHIFT FORK

(Thickness)

NOTE: Whenever a shift fork is out of tolerance,

replacement is necessary.

1. Using a calipers, in turn measure the thickness

of the machined tip of each shift fork.

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3-41

3

CC296D

2. Shift fork thickness must be within specifica-

tions.

MEASURING SHIFT FORK GROOVE

(Width)

1. Using a calipers, in turn measure the width of

each shift fork groove.

CC288D

2. Shift fork groove width must be within specifi-

cations.

MEASURING SHIFT FORK TO

GROOVE (Side Clearance)

1. In turn, insert each shift fork into its groove.

2. Using a feeler gauge, measure the clearance

between the shift fork and the groove.

CC292D

3. Shift fork to groove side clearance must be

within specifications.

Servicing Right-Side

Components

NOTE: Whenever a part is worn excessively,

cracked, damaged in any way, or out of tolerance,

replacement is necessary.

PRIMARY CLUTCH ASSEMBLY

(Inspecting/Measuring/

Assembling)

NOTE: Prior to inspecting and measuring com-

ponents, it is recommended that all components

be removed from the primary gear assembly and

be cleaned.

NOTE: When removing components from the pri-

mary gear assembly, account for the bushing that

fits into the primary gear.

CC239D

Inspecting/Measuring Clutch

Driven Plate Warpage

1. Inspect each driven plate for warpage and burn

marks.

2. In turn place each driven plate on the surface

plate; then using a feeler gauge, measure

warpage in several locations.

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CC245D

3. Maximum driven plate warpage must not

exceed specifications.

Measuring Clutch Drive Plate

(Fiber) Thickness

1. Using a calipers, in turn measure the thickness

of each drive plate in several locations.

CC243D

2. Drive plate thickness must not exceed minimum

specifications.

3. If the fiber plate tabs are damaged, the plate

must be replaced.

4. Inspect the clutch sleeve hub for grooves or

notches. If grooves or notches are present,

replace the hub.

Inspecting Centrifugal Clutch Shoe

1. Inspect the clutch shoe for uneven wear, chips,

cracks, or discoloration.

2. Inspect the depth of the grooves in the clutch

shoes. If any shoe is worn to the bottom of the

groove, replace the complete set.

ATV1014

Inspecting Centrifugal Clutch

Housing

1. Inspect the clutch housing for burns, marks,

scuffs, cracks, scratches, or uneven wear.

2. If the housing is damaged in any way, the hous-

ing must be replaced.

Inspecting Primary

One-Way Drive

1. Insert the drive into the clutch housing.

2. Rotate the inner race by hand and verify the

inner race rotates only one direction.

3. If the inner race is locked in place or rotates both

directions, the drive assembly must be replaced.

Measuring Clutch Spring Length

1. Using a calipers, measure the overall free length

of the clutch spring.

CC247D

2. Overall length must not exceed minimum speci-

fications.

! CAUTION

Always replace clutch shoes as a complete set or

severe imbalance could occur.

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3-43

3

Assembling Primary Clutch

737-731A

1. Place the clutch hub upside down into the pri-

mary gear assembly.

CC920

2. Alternately install the drive plates and driven

plates onto the hub (starting and ending with a

drive plate) making sure the tabs with the

notches are all in line with each other.

CF044A

NOTE: When installing the driven plates for ease

of installation, make sure they are placed onto the

hub with the rounded side of the plates directed

down.

CF045A

3. Install the pressure plate onto the hub making

sure the alignment dots are correctly positioned.

CF047A

4. Place the primary gear assembly w/clutch hub

assembly in one hand, place the other hand on

top of the clutch hub assembly, and flip the

assembly over; then lift the primary gear assem-

bly off the clutch hub assembly being careful

not to disturb the drive plate notched tab orienta-

tion.

CC924

5. Place the primary gear assembly on a clean, flat

surface; then install the primary washer into the

assembly.

KEY

1. Pressure Disc

2. Driven Plate

3. Drive Plate

4. Sleeve Hub

5. Primary Gear Assy

6. Washer

7. Washer

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CC239D

6. Place the clutch hub assembly into the primary

gear assembly.

CC926

NOTE: The primary clutch assembly is now com-

pletely assembled for installation.

INSPECTING OIL PUMP

1. Inspect the pump for damage.

2. It is inadvisable to remove the screw securing

the pump halves. If the oil pump is damaged, it

must be replaced.

CC446D

Servicing Center

Crankcase Components

NOTE: Whenever a part is worn excessively,

cracked, damaged in any way, or out of tolerance,

replacement is necessary.

SECONDARY GEARS

NOTE: When checking and correcting secondary

gear backlash and tooth contact, the universal

joint must be secured to the front shaft or false

measurements will occur.

Checking Backlash

NOTE: The rear shaft and bevel gear must be

removed for this procedure. Also, always start with

the original shims on the rear shaft.

1. Place the left-side crankcase cover onto the

left-side crankcase half to prevent runout of the

secondary transmission output shaft.

2. Install the secondary driven output shaft assem-

bly onto the crankcase.

3. Mount the indicator tip of the dial indicator on

the secondary driven bevel gear.

4. While rocking the driven bevel gear back and

forth, note the maximum backlash reading on

the gauge.

5. Acceptable backlash range is 0.05-0.33 mm

(0.002-0.013 in.).

Correcting Backlash

NOTE: If backlash measurement is within the

acceptable range, no correction is necessary.

! CAUTION

The clutch hub and the pressure plate must be seated

in the proper position. If any of the incorrect positions

are used, the hub and plate will have clearance

between them and they will not operate properly.

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3

1. If backlash measurement is less than specified,

remove an existing shim, measure it, and install

a new thinner shim.

2. If backlash measurement is more than specified,

remove an existing shim, measure it, and install

a thicker shim.

NOTE: Continue to remove, measure, and install

until backlash measurement is within tolerance.

Note the following chart.

Checking Tooth Contact

NOTE: After correcting backlash of the second-

ary driven bevel gear, it is necessary to check

tooth contact.

1. Remove the secondary driven output shaft

assembly from the left-side crankcase half.

2. Clean the secondary driven bevel gear teeth of

old oil and grease residue.

3. Apply a thin, even coat of a machinist-layout

dye to several teeth of the gear.

4. Install the secondary driven output shaft assem-

bly.

5. Rotate the secondary driven bevel gear several

revolutions in both directions.

6. Examine the tooth contact pattern in the dye and

compare the pattern to the illustrations.

ATV-0103

ATV-0105

ATV-0104

Correcting Tooth Contact

NOTE: If tooth contact pattern is comparable to

the correct pattern illustration, no correction is

necessary.

If tooth contact pattern is comparable to an incorrect

pattern, correct tooth contact according to the fol-

lowing chart.

NOTE: To correct tooth contact, steps 1 and 2

(with NOTE) of “Correcting Backlash” must be fol-

lowed and the above “Tooth Contact/Shim Correc-

tion” chart must be consulted.

Backlash Measurement Shim Correction

Under 0.05 mm (0.002 in.) Decrease Shim Thickness

At 0.05-0.33 mm (0.002-0.013 in.) No Correction Required

Over 0.33 mm (0.013 in.) Increase Shim Thickness

Tooth Contact Shim Correction

Contacts at Top Decrease Shim Thickness

Contacts at Root Increase Shim Thickness

! CAUTION

After correcting tooth contact, backlash must again

be checked and corrected (if necessary). Continue

the correcting backlash/correcting tooth contact

procedures until they are both within tolerance val-

ues.

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CRANKSHAFT ASSEMBLY

Measuring Connecting Rod

(Small End Inside Diameter)

1. Insert a snap gauge into the upper connecting

rod small end bore; then remove the gauge and

measure it with micrometer.

CC290D

2. Maximum diameter must not exceed specifica-

tions.

Measuring Connecting Rod

(Small End Deflection)

1. Place the crankshaft on a set of V blocks and

mount a dial indicator and base on the surface

plate. Position the indicator contact point against

the center of the connecting rod small end jour-

nal.

2. Zero the indicator and push the small end of the

connecting rod away from the dial indicator.

3. Maximum deflection must not exceed specifica-

tions.

Measuring Connecting Rod

(Big End Side-to-Side)

1. Push the lower end of the connecting rod to one

side of the crankshaft journal.

2. Using a feeler gauge, measure the gap between

the connecting rod and crankshaft journal.

CC289D

3. Acceptable gap range must be within specifica-

tions.

Measuring Connecting Rod

(Big End Width)

1. Using a calipers, measure the width of the con-

necting rod at the big-end bearing.

2. Acceptable width range must be within specifi-

cations.

Measuring Crankshaft (Runout)

1. Place the crankshaft on a set of V blocks.

2. Mount a dial indicator and base on the surface

plate. Position the indicator contact at point 1 of

the crankshaft.

ATV-1074

3. Zero the indicator and rotate the crankshaft

slowly.

4. Maximum runout must not exceed specifica-

tions.

NOTE: Proceed to check runout on the other end

of the crankshaft by positioning the indicator con-

tact at point 2 and following steps 2-4.

! CAUTION

Care should be taken to support the connecting rod

when rotating the crankshaft.

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3

Measuring Crankshaft

(Web-to-Web)

1. Using a calipers, measure the distance from the

outside edge of one web to the outside edge of

the other web.

ATV-1017

2. Acceptable width range must be within specifi-

cations.

DRIVESHAFT

Disassembling

1. In order, remove the reverse dog, circlip,

washer, reverse driven gear, and bushing from

the driveshaft.

CD331

CD333

CD335

CD336

CD337

NOTE: The teeth on the bushing must face the

1st driven gear.

2. Remove the 1st driven washer (right side); then

remove the 1st driven gear from the driveshaft.

CD339

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CD341

3. Remove the 1st driven bushing; then remove the

1st driven washer (left side) from the shoulder

of the splined shaft. Remove the 4th driven cir-

clip.

CD342

CD343

CD344

4. Remove the 4th driven gear from the driveshaft.

Note the four small dogs facing toward the 3rd

driven gear for assembling purposes.

CD345

5. Remove the 3rd driven circlip; then remove the

3rd driven lock washer (right side) from the

driveshaft.

CD346

CD348

6. Remove the 3rd driven gear from the driveshaft.

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3

CD349

7. Remove the 3rd driven bushing from the drive-

shaft. Note the location of the oil feed hole in

the bushing and the matching oil supply hole in

the driveshaft for assembling purposes.

CD351

8. Remove the 3rd driven lock washer (left side)

from the driveshaft. Note the tabs facing toward

the 5th driven gear for assembling purposes.

CD352

9. Remove the next 3rd driven lock washer (left

side) by rotating it out of the groove. Note the

groove closest to the 5th driven gear for assem-

bling purposes.

CD354

10. Remove the 5th driven gear from the driveshaft.

CC210D

11. In order, remove the 2nd driven circlip, washer,

gear, and bushing from the driveshaft.

CD356

CD357

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CD358

CD359

Assembling

737-733A

1. In order, install the 2nd driven bushing, gear,

washer, and circlip onto the driveshaft.

CD359

CD358

CD357

CD356

2. Install the 5th driven gear onto the driveshaft.

AT THIS POINT

To service secondary gears, see Servicing Center

Crankcase Components in this sub-section.

KEY

1. Driveshaft

2. 1st Driven Gear

3. 2nd Driven Gear

4. 3rd Driven Gear

5. 3rd Driven Bushing

6. 4th Driven Gear

7. 5th Driven Gear

8. Reverse Driven Gear

9. Reverse Dog

10. Reverse Driven Bushing

11. 3rd Driven Lock Washer —

Right

12. 3rd Driven Lock Washer —

Left

13. 3rd Driven Lock Washer —

Left

14. Driveshaft Bearing

15. 1st Driven Bushing

16. 2nd Driven Bushing

17. 2nd Driven Circlip

18. 3rd Driven Circlip

19. 4th Driven Circlip

20. Reverse Driven Washer

21. 1st Driven Washer — Left

22. 1st Driven Washer — Right

23. 2nd Driven Washer

24. Reverse Driven Circlip

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3

CD355

3. Install the 3rd driven lock washer (left side).

Lock it into the groove closest to the 5th driven

gear (as noted in disassembling) by rotating it

when it is in the groove.

CD354

4. Install the next 3rd driven lock washer (left side)

onto the driveshaft making sure the tabs are fac-

ing toward the 5th driven gear. Make sure the

tabs intertwine with the first 3rd driven lock

washer.

CD352

5. Install the 3rd driven bushing onto the driveshaft

making sure the oil feed hole in the bushing

aligns with the appropriate oil supply hole in the

driveshaft (as noted in disassembling).

CD351

6. In order, install the 3rd driven gear, lock washer

(right side), and circlip onto the driveshaft.

CD349

CD348

! CAUTION

It is very important to assure the oil feed hole in the

bushing and oil supply hole in the driveshaft align. If

not aligned, engine damage will result.

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CD346

7. Install the 4th driven gear onto the driveshaft

making sure the four small dogs are facing

toward the 3rd driven gear as noted in disassem-

bling; then secure with the circlip.

CD345

CD344

8. Install the 1st driven washer (left side) onto the

shoulder of the splined shaft; then install the 1st

driven bushing and gear.

CD343

CD342A

CD341

9. Install the 1st driven washer (right side) on the

shaft making sure it lines up with the groove in

the shaft; then turn the washer locking it on the

shaft.

CD340

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3

10. Slide the reverse driven bushing onto the shaft

making sure the oil port in the bushing aligns with

the oil port on the shaft.

CD337

11. In order, install the reverse driven gear, washer,

circlip, and reverse dog onto the driveshaft.

CD336

CD335

CD334

CD331

NOTE: The driveshaft is now completely assem-

bled for installation.

COUNTERSHAFT

Disassembling

1. Remove the 2nd drive gear from the counter-

shaft.

CD395

2. Remove the 5th drive gear from the counter-

shaft.

! CAUTION

Failure to align the oil ports will result in serious

engine damage.

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CD396

3. Remove the 5th drive washer and 5th drive cir-

clip from the countershaft.

CD397

CD400

4. Remove the 3rd drive gear from the counter-

shaft.

5. Remove the 4th drive circlip securing the 4th

drive gear on the countershaft; then remove the

first 4th drive washer and 4th drive gear.

Account for the bushing.

CD405

6. Remove the other 4th drive washer from the

countershaft.

CD408

Assembling

737-733B

1. Install the 4th drive washer onto the counter-

shaft.

KEY

1. Countershaft

2. 2nd Drive Gear

3. 3rd Drive Gear

4. 4th Drive Gear

5. 5th Drive Gear

6. 5th Drive Washer

7. 5th Drive Washer

8. Shaft Bearing

9. 4th Drive Bushing

10. 4th Drive Circlip

11. 5th Drive Circlip

12. Shaft Bearing

13. Plug

14. 4th Drive Washer

15. 4th Drive Washer

16. Reverse Idle Shaft

17. Reverse Idle Gear

18. Reverse Idle Bushing

19. Reverse Idle Washer

20. Reverse Idle Circlip

21. Retainer

22. Screw

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3

CD408

2. Install the 4th drive gear making sure the bush-

ing is in position; then install the other 4th drive

washer onto the countershaft. Secure with the

circlip.

CD405

CD406

3. Install the 3rd drive gear; then install the 5th

drive circlip onto the countershaft.

CD401

CD400

4. Install the 5th drive washer and 5th drive gear

onto the countershaft.

CD397

CD396

5. Install the 2nd drive gear onto the countershaft.

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CD395

NOTE: The countershaft is now completely

assembled for installation.

Assembling Crankcase

Half

NOTE: For ease of assembly, install components

on the left-side crankcase half.

NOTE: If the output shaft and gear were

removed, make sure that the proper shim is

installed.

1. To install the output shaft and gear, place the

shaft into position with proper shims, slide the

gear onto the shaft, and secure with a new nut

tightened to specifications.

2. Apply a liberal amount of engine oil to the

crankshaft bearing. Using a propane torch, heat

the bearing until the oil begins to smoke; then

slide the crankshaft assembly into place. Install

the crank balancer.

MD1334

NOTE: If heating the bearing is not possible, the

crankshaft can be installed using a crankshaft

installing tool.

MD1024

3. With the key in position, slide the driven gear

onto the crank balancer making sure the timing

marks are aligned.

CD832A

CC167D

CC166D

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3

4. Place the bearing C-ring into position in the

crankcase; then install the front shaft and rear

shaft assemblies.

CD267

5. Simultaneously, install the driveshaft and coun-

tershaft assemblies making sure the washer is on

the countershaft.

CD232A

6. Install the reverse idle shaft with circlip making

sure the oil hole in the shaft is facing downward;

then install a washer, bushing, reverse idle gear,

and a washer.

NOTE: The reverse idle gear is directional. Care

must be taken that it is installed correctly.

CC231D

7. Place each of the four shift forks into its respec-

tive gear or dog as noted during disassembling;

then install the gear shift cam.

CD232

CC987

8. Engage the four forks to the gear shift cam; then

install the reverse shift cam and spacer.

CC986

NOTE: For proper assembling, the cam lock

plate must engage the shift cam cutaway.

! CAUTION

The bearing pins must be positioned into the crank-

case.

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CC988

9. Install the two gear shift fork shafts; then verify

that the two crankcase half alignment pins are in

place.

NOTE: Prior to joining crankcase halves, turn the

shift cam to ensure all gears shift properly.

Joining Crankcase

Halves

1. Verify that the shim washer is on the idler shaft;

then apply Three Bond Sealant to the mating

surfaces. Place the right-side half onto the

left-side half.

CC102D

2. Using a plastic mallet, lightly tap the case halves

together until cap screws can be installed.

3. From the right side, install the four case half 8

mm cap screws; then tighten only until snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

CC982

4. From the left side, install the three case half 8

mm cap screws (two inside the case); then

tighten only until snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

CC981

5. From the left side, install the seven case half 6

mm cap screws; then tighten only until snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

6. From the right side, install the five case half 6

mm cap screws (one inside the case); then

tighten only until snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

7. In a crisscross/case-to-case pattern, tighten the 8

mm cap screws (from steps 3-4) until the halves

are correctly joined; then tighten to specifica-

tions.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

8. In a crisscross/case-to-case pattern, tighten the 6

mm cap screws (from steps 5-6) to specifica-

tions.

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3

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

Installing Right-Side

Components

A. Oil Strainer/Oil Pump

B. Gear Shift Shaft

1. Place the oil strainer with a new O-ring into

position beneath the crankcase and tighten

securely with the Phillips-head cap screws.

CC163D

2. Place the strainer cap into position on the

strainer making sure the O-ring is properly

installed and secure with the cap screws; then

install and tighten the oil drain plug to specifica-

tions.

CC091D

3. Place the oil pump into position in the crankcase

and secure with the three Phillips-head screws

coated with blue Loctite #243. Tighten to speci-

fications.

CC978

4. Place the washer and pin into position on the oil

pump shaft, install the oil pump driven gear, and

secure with the circlip.

NOTE: Always use a new circlip when installing

the driven gear.

CC976

5. Place the gear shift cam plate and guide onto the

gear shift cam making sure the alignment pin

was installed. Secure assembly with the cap

screw coated with blue Loctite #243. Tighten

securely.

CC975

6. Attach the spring to the gear shift cam stopper

arm.

! CAUTION

After completing center crankcase components,

proceed to Installing Right-Side Components, to

Installing Left-Side Components, and to In- stalling

Top-Side Components.

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CC974

7. Install the gear shift shaft.

CC973

C. Primary Driven Gear

D. Primary Clutch

E. Centrifugal Clutch Shoe

NOTE: Steps 1-7 in the preceding sub-section

must precede this procedure.

8. Install the spacer, pin, and oil pump drive gear

onto the crank balancer shaft making sure the

shoulder of the drive gear is facing inward

toward the crankcase; then secure with the

washer and nut (threads coated with red Loctite

#271) tightened to specifications.

MD1017

CD447

9. Place the chain into the crankcase; then secure it

from the top side with a wire for ease of install-

ing.

CC079D

10. Install the primary driven washers and shims

onto the driveshaft and crankshaft.

11. Simultaneously, place the primary clutch assem-

bly and the centrifugal clutch housing on their

respective shafts making sure the sleeve is prop-

erly positioned in the primary assembly.

CC078D

! CAUTION

The clutch sleeve hub and the clutch pressure plate

must be seated in the proper position. If any of the

incorrect positions are used, the hub and plate will

have clearance between them and they will not oper-

ate properly.

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3

NOTE: After placing the primary clutch assembly

onto the shaft, pull out on the pressure plate tower

to ensure the pressure plate has engaged the

clutch hub properly and make sure the plates

(drive and driven) are brought together tightly

prior to tightening the nut securing the clutch

assembly.

12. Using a clutch sleeve hub holder, install the nut

and washer. Tighten to specifications.

NOTE: The washer is directional. Care must be

taken to install it correctly.

CD448

13. Place the primary drive one-way clutch into the

centrifugal clutch housing noting the word

OUTSIDE for proper placement.

CF043

14. Install the centrifugal clutch shoe and washer;

then secure with the centrifugal clutch-shoe nut

(left-hand threads). Tighten to specifications;

then using a center punch, stake the nut.

CD440

15. Install the release roller assembly making sure

the four springs are in position; then using a

crisscross pattern, tighten the four cap screws

securely.

NOTE: Tighten the four roller assembly cap

screws in a crisscross pattern making sure there

is no clearance between the clutch plates when

secured.

CC074D

16. Install the clutch release arm and release roller

guide making sure the release roller and guide

are aligned.

CD166A

17. Secure the clutch release arm with the cap screw

coated with blue Loctite #243. Tighten securely.

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CC073D

F. Oil Filter

NOTE: Steps 1-17 of the preceding sub-sections

must precede this procedure.

NOTE: Lubricate all internal components with

5W-30 oil prior to installing the right-side cover.

NOTE: Care should be taken that the alignment

pins are installed in the right-side cover.

CC989

18. Place the gasket and right-side cover into posi-

tion making sure the release roller guide remains

correctly positioned; then install the fifteen cap

screws.

CD441

19. Tighten the cap screws in a crisscross pattern to

specifications.

20. Using the oil filter wrench, install a new oil fil-

ter.

CC967

Installing Left-Side

Components

A. Idle Gear Assembly

B. Magneto Rotor

1. Place the starter into position on the crankcase

and secure with the cap screws. Note the posi-

tion of the wiring form.

CC065D

2. Place the neutral switch base assembly into

position making sure the two neutral contacts

and springs are inside the case and properly

positioned. Secure with Allen-head screws.

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3

CC964

3. Install the secondary stopper camshaft w/one

inner shim and one outer shim.

CC962

NOTE: Care must be taken that the alignment

dots on the camshaft plate and the camshaft are

properly aligned.

CC963

4. Install the gear shift shaft w/one inner washer

and one outer washer.

CC960

5. Install the driven gear onto the output shaft.

CC959

6. Place the bushing and washer onto the drive-

shaft making sure the oil hole of the bushing

aligns with the oil hole of the driveshaft.

CD552

7. In turn on the driveshaft, install drive gear #1

and a washer; then secure with the circlip.

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CC955

8. Place the select sliding dog gear onto the drive-

shaft; then place a washer, drive gear #2, and

another washer onto the driveshaft.

CC966

CC954

9. Place the gear shift fork into the sliding dog;

then install the gear shift fork shaft.

CC953

10. Install the drive idler gear with one spacer and

one washer.

CC952

11. Install starter idler gear #2 and shaft with the

chamfered side directed toward the crankcase.

CD140

12. Install the starter clutch gear assembly onto the

crankshaft. Place the key into its notch. Place

the magneto rotor into position on the crank-

shaft; then install the magneto rotor nut on the

crankshaft and tighten until the rotor is properly

seated. Tighten to specifications.

CC991

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3

CC990

13. Install the two alignment pins into the left

crankcase half.

NOTE: Make sure that three washers and two

alignment pins are in place.

CC948A

C. Cover

D. Speedometer Drive

E. Hi/Low Shifter Assembly

F. Recoil Starter

NOTE: Steps 1-13 in the preceding sub-section

must precede this procedure.

14. Place the gasket and left-side cover into position

on the crankcase.

NOTE: It may be necessary to push or pull the

splined Hi/Low range shift shaft to establish

cover/crankcase mating.

15. Install the fifteen 6 mm cap screws and one 8

mm cap screw to secure the left-side cover. Only

finger-tighten at this time.

CC945

16. Place the gear shift stopper w/spring and washer

into position above the hi/low shift shaft making

sure the spring and stopper are correctly posi-

tioned. Tighten to specifications.

CC993

17. Place the speed sensor into position and secure

with the two cap screws. Tighten securely.

CF109

18. Place the starter cup into position on the crank-

shaft making sure a new, lubricated O-ring is

inside the cup. Tighten the flange nut to specifi-

cations.

! CAUTION

Make sure the speedometer gear and output shaft

gear match up during assembly.

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CC943

19. In a crisscross pattern, tighten the cap screws

(from step 15) to specifications.

CD429

20. Place the recoil starter assembly into position on

the left-side cover; then tighten four cap screws

to specifications.

CD431

Installing Top-Side

Components

A. Piston

B. Cylinder

0737-039

NOTE: If the piston rings were removed, install

them in this sequence.

A. Install ring expander (4) in the bottom groove

of the piston; then install the thin oil rings (3)

over the expander making sure the expander

ends do not overlap. Stagger the end gaps of the

upper and lower thin oil rings according to the

illustration.

NOTE: Note the direction of the exhaust side of

the piston (5) for correct ring end gap orientation.

ATV-1085B

B. Install the compression rings (1 and 2) so the

letter on the top surface of each ring faces the

dome of the piston. Rotate the rings until the

ring end gaps are on directly opposite sides of

the piston (see illustration).

NOTE: The chrome (silver) ring should be

installed in the top position.

KEY

1. Cylinder

2. Stud Bolt

3. Stud Bolt

4. Bolt

5. Bolt

6. Bolt

7. Nut

8. Cylinder Gasket

9. Pin

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3-67

3

ATV-1024

1. Install the piston on the connecting rod making

sure there is a circlip on each side and the open

end of the circlip is directed upwards or down-

wards.

NOTE: The piston should be installed so the

arrow points toward the exhaust.

MD1213

2. Place the two alignment pins into position. Place

the cylinder gasket into position; then place a

piston holder (or suitable substitute) beneath the

piston skirt and square the piston in respect to

the crankcase.

MD1344

3. Lubricate the inside wall of the cylinder; then

using a ring compressor or the fingers, compress

the rings and slide the cylinder over the piston.

Route the cam chain up through the cylinder

cam chain housing; then remove the piston

holder and seat the cylinder firmly on the crank-

case.

MD1345

4. Loosely install the two nuts with washers which

secure the right-side of the cylinder to the

right-side crankcase half.

NOTE: The two cylinder-to-crankcase nuts will

be tightened in step 9.

CF162A

! CAUTION

Incorrect installation of the piston rings will result in

engine damage.

! CAUTION

The cylinder should slide on easily. Do not force the

cylinder or damage to the piston, rings, cylinder, or

crankshaft assembly may occur.

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C. Cylinder Head

D. Valve Cover

0737-038

NOTE: Steps 1-4 in the preceding sub-section

must precede this procedure.

5. While keeping tension on the cam chain, place

the chain guide into the cylinder.

MD1349

6. Place the head gasket into position on the cylin-

der. Place the alignment pins into position; then

place the head assembly into position on the cyl-

inder making sure the cam chain is routed

through the chain cavity.

MD1347

MD1163

7. Install the four cylinder head cap screws with

washers. Note that the two cap screws on the

right side of the cylinder head nearest the cam

sprocket are longer than the two cap screws on

the left (spark plug) side. Tighten only until

snug.

MD1270

8. Install the two lower nuts securing the cylinder

head to the cylinder, one in front and one in rear.

Tighten only until snug.

! CAUTION

Care should be taken that the bottom of the chain

guide is secured in the crankcase boss.

KEY

1. Cylinder Head Assy

2. Valve Guide

3. Ring

4. Pin

5. Cap Screw

6. Cylinder Head Gasket

7. Pin

8. Gasket

9. Nut

10. Cap Screw

11. Cap Screw

12. Washer

13. Cap Screw

14. Cap Screw

15. Plug

16. Gasket

17. Spark Plug

18. Inspection Cap

19. O-Ring

20. Cap Screw

21. Plug

22. O-Ring

23. Insulator

24. Screw

25. Intake Manifold

! CAUTION

Keep tension on the cam chain to avoid damaging

the crankcase boss.

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3

MD1192

9. In a crisscross pattern, tighten the four cylinder

head cap screws (from step 7) to specifications;

then tighten the nuts (from step 8) to specifica-

tions. Tighten the cylinder-to-crankcase nuts

(from step 4) to specifications.

10. With the timing inspection plug removed and

the chain held tight, rotate the crankshaft until

the piston is at top-dead-center.

11. Install the rear cam chain tensioner guide into

the cylinder head. Install the pivot cap screw

and washer.

CD383

12. With the alignment pin installed in the camshaft

and the cam lobes directed down (toward the

piston), place the camshaft in position and verify

that the timing mark on the magneto is visible

through the inspection plug and that the timing

marks on the camshaft sprocket are parallel with

the valve cover mating surface.

NOTE: When the camshaft assembly is seated,

make sure the alignment pin in the camshaft aligns

with the smallest hole in the sprocket.

13. Loosely place the cam sprocket (with the

recessed side facing the camshaft lobes) onto the

camshaft and place it into position with the cam

chain over the sprocket.

732-307B

14. Place the C-ring into position in its groove in the

cylinder head.

MD1131

NOTE: At this point, oil the camshaft bearings,

cam lobes, and the three seating journals on the

cylinder.

NOTE: Note the position of the alignment marks

on the end of the camshaft. They must be parallel

with the valve cover mating surface. If rotating the

camshaft is necessary for alignment, do not allow

the chain and sprocket to rotate and be sure the

cam lobes end up in the down position.

15. When the camshaft assembly is seated, ensure

the following.

A. Piston still at top-dead-center.

B. Camshaft lobes directed down (toward the

piston).

C. Camshaft alignment marks parallel to the valve

cover mating surface.

D. Recessed side of the sprocket directed toward

the cam lobes.

E. Camshaft alignment pin and sprocket

alignment hole (smallest) are aligned.

! CAUTION

If any of the above factors are not as stated, go back

to step 10 and carefully proceed.

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16. Place the tab washer onto the sprocket making

sure it covers the pin in the alignment hole.

ATV-1027

CF030B

17. Apply red Loctite #271 to the first cap screw

securing the sprocket and tab washer to the cam-

shaft; then install the cap screw. Tighten cap

screw only until snug.

CC404D

MD1137

18. Rotate the crankshaft until the second cap screw

securing the sprocket to the camshaft can be

installed; then install the cap screw (threads

coated with red Loctite #271). Tighten to speci-

fications; then bend the tab to secure the cap

screw.

MD1137

19. Rotate the crankshaft until the first cap screw

securing the sprocket to the camshaft (from step

17) can be addressed; then install the cap screw.

Tighten to specifications; then bend the tab to

secure the cap screw.

20. Install the cylinder head plug in the cylinder

head with the open end facing the cylinder head.

21. Remove the cap screw from the end of the chain

tensioner; then account for the plunger, spring,

and O-ring.

MD1248

! CAUTION

Care must be taken that the tab washer is installed

correctly to cover the alignment hole on the

sprocket. If the alignment pin falls out, severe

engine damage will result.

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3

22. Depress the spring-loaded lock and push the

plunger into the tensioner.

MD1146

23. Place the chain tensioner adjuster assembly and

gasket into position on the cylinder making sure

the ratchet side is facing toward the top of the

cylinder and secure with the two Allen-head

screws.

MD1254

24. Install the cap screw and spring into the end of

the chain tensioner. Tighten securely.

MD1245

25. Loosen the adjuster screw jam nuts; then loosen

the adjuster screws on the rocker arms in the

valve cover.

26. Apply a thin coat of Three Bond Sealant to the

mating surface of the valve cover. Place the

valve cover into position making sure the two

alignment pins are properly positioned.

NOTE: At this point, the rocker arms and

adjuster screws must not have pressure on them.

27. Install the four top-side cap screws with rubber

washers; then install the remaining cap screws.

Tighten only until snug.

CC999

28. In a crisscross pattern starting from the center

and working outward, tighten the cap screws

(from step 27) to specifications.

29. Adjust valve/tappet clearance using the follow-

ing procedure.

NOTE: Use Valve Clearance Adjuster (p/n

0444-078) for this procedure.

A. Turn the engine over until the piston reaches

top dead center on the compression stroke.

B. Place the valve adjuster onto the jam nut

securing the tappet adjuster screw; then rotate

the valve adjuster dial clockwise until the end is

seated in the tappet adjuster screw.

CD001

C. While holding the valve adjuster dial in place,

use the valve adjuster handle and loosen the

jam nut; then rotate the tappet adjuster screw

clockwise until friction is felt.

D. Align the valve adjuster handle with one of the

marks on the valve adjuster dial.

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E. While holding the valve adjuster handle in

place, rotate the valve adjuster dial

counterclockwise until specified valve/tappet

clearance is attained.

NOTE: Rotating the valve adjuster dial counter-

clockwise will open the valve/tappet clearance by

0.05 mm (0.002 in.) per mark.

F. While holding the adjuster dial at the proper

clearance setting, tighten the jam nut securely

with the valve adjuster handle.

30. Place the two tappet covers into position; then

install and tighten the cap screws securely.

MD1264

31. If removed, install the spark plug and tighten to

specifications.

Installing

Engine/Transmission

NOTE: Arctic Cat recommends that new gaskets

and O-rings be installed whenever servicing the

ATV.

1. From the left side, place the engine/transmission

into the frame; then move it rearward as far as

possible.

2. Raise the rear of the engine enough to engage

the front driveshaft into the splines of the front

drive output yoke; then slide the engine forward

as far as possible.

CD818

3. Raise the rear of the engine and place a block

under it; then install the propeller shaft and out-

put flange into the rear drive coupler.

CD821

4. Remove the block from beneath the engine; then

align the rear drive flanges and secure with four

cap screws. Tighten to specifications.

CD824

5. Install the lower rear engine mounting

through-bolt, spacer, and washer; then install the

lower front engine mounting through-bolt,

spacer, and washer. Secure with the flange nuts.

Tighten to specifications.

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3

CD809

6. Connect the crankcase breather vent hose and

secure with the clamp.

CC122D

7. Connect the oil cooler hoses to the engine and

secure with the clamps.

CC937

8. Connect the following electrical components: two

wire leads for the oil temperature and oil pressure

sensors, indicator lights, CDI, and voltage

regulator.

CC939

CC938

9. Connect the positive cable to the starter motor

and install the protective boot.

AR604D

10. Connect the battery ground (negative) cable to

the crankcase cover.

AR600D

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11. Install the coil and connect the two wires; then

install the high tension lead on the spark plug.

12. Install the carburetor assembly and secure the

intake manifold and air inlet boot.

CC120D

13. Route the two vent hoses through the slots in the

frame.

14. Connect the speed sensor lead to the wiring har-

ness.

CF172A

15. Place the reverse/high/low shift linkage w/bush-

ing and washer onto the engine shift shaft and

secure with the E-clip.

CC935

16. Place the gear shift lever into position on the

shaft on the engine; then secure with the pinch

screw and lock nut.

CC934

17. Install the air filter housing; then connect the

crankcase breather and the inlet air duct. Secure

with the clamps.

CD785

CD787

18. Install the exhaust pipe and secure with two cap

screws; then install the muffler onto the frame

brackets and secure with exhaust springs.

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3

CF137

CF138

19. Connect the gas hose to the fuel pump; then con-

nect the vacuum hose. Secure with hose clamps.

CD766A

20. Install the front and rear fender panels and the

front and rear racks (see Section 8).

21. Install the storage compartment and steering

post access panel; then secure with reinstallable

rivets.

22. Install the battery in the tray, install the vent

hose. Connect the positive battery cable; then

connect the negative cable. Install the battery

cover/tool tray.

23. Install the seat.

24. Pour the correct amount of recommended oil

into the engine/transmission filler hole; install

the filler plug.

ATV-0075

! CAUTION

If the engine had a major overhaul or if any major

part was replaced, proper engine break-in proce-

dures must be followed (see Section 1). If the proper

engine break-in procedures are not followed, severe

engine damage may result.

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Table of Contents

(400 — Automatic Transmission)

Removing Engine/Transmission ……………………... 3-76

Top-Side Components……………….…………….…….. 3-79

Removing Top-Side Components …….……………... 3-79

Left-Side Components ……………………….………….. 3-83

Removing Left-Side Components ….…………….….. 3-83

Right-Side Components …………….………….……….. 3-85

Removing Right-Side Components…..……………... 3-86

Center Crankcase Components……….……………... 3-90

Separating Crankcase Halves………….……………... 3-90

Disassembling Crankcase Half ……………………….. 3-91

Servicing Components………..……………..………….. 3-93

Assembling Crankcase Half ………………..………… 3-112

Joining Crankcase Halves……………….…………. 3-115

Installing Right-Side Components…….……………. 3-116

Installing Left-Side Components …………….……… 3-119

Installing Top-Side Components …………………. 3-121

Installing Engine/Transmission ……………………… 3-126

Removing Engine/

Transmission

Many service procedures can be performed without

removing the engine/transmission from the frame.

Closely observe the note introducing each sub-sec-

tion for this important information.

Secure the ATV on a support stand to elevate the

wheels.

1. Remove the seat; then remove the battery

cover/tool tray.

2. Remove the negative cable from the battery;

then remove the positive cable. Remove the bat-

tery vent hose; then remove the battery.

3. Remove the front and rear racks (see Section 8).

4. Remove the storage compartment and the steer-

ing post access panel (see Section 8).

5. Drain the oil from beneath the engine/transmis-

sion.

733-441A

6. Remove the front and rear fender panels (see

Section 8).

7. Disconnect the fuel hose (1), carburetor vent

hose (2), and the fuel pump vacuum hose (3)

from the carburetor.

CF178A

8. Disconnect the crankcase vent hose from the air

cleaner housing. Remove the clamp securing the

air intake hose to the carburetor; then remove

the air cleaner housing.

NOTE: The air cleaner intake duct must be

removed prior to removing the air cleaner housing.

AT THIS POINT

If the technician’s objective is to service/replace

left-side cover oil seals (3), front output joint oil

seal (1), rear output joint oil seal (1), and/or the oil

strainer (from beneath the engine/ transmission),

the engine/transmission does not have to be

removed from the frame.

! WARNING

Make sure the ATV is solidly supported on the sup-

port stand to avoid injury.

! CAUTION

Battery acid is harmful if it contacts eyes, skin, or

clothing. Care must be taken whenever handling a

battery.

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3

CF181

9. Remove the clamps securing the cooling ducts

to the V-belt housing.

10. Remove the cooling ducts from the V-belt cover.

CD793

11. Remove the cap screws securing the left-side

foot peg to the footrest.

CD781

12. Loosen the clamp securing the carburetor to the

intake; then route the carburetor assembly up

and away from the engine.

13. Remove the E-clip securing the shift rod to the

engine shift arm; then allow the shift rod to hang

by the pivot axle bolt.

AF962

14. Remove the cap screws securing the two oil fit-

tings to the crankcase; then route the hoses away

from the engine. Account for two O-rings.

CF174

NOTE: There will be a substantial amount of oil

draining from the oil hoses when removing. Place

a drain pan beneath the hoses prior to removing

the cap screws.

15. Remove the two cap screws securing the

exhaust pipe to the engine; then remove the

exhaust springs from the muffler at the juncture

in front of the muffler.

CF138

16. Remove the four cap screws securing the rear

output shaft to the transmission; then push the

shaft to the rear as far as possible.

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CD085

NOTE: It is advisable to lock the brake when

loosening the cap screws securing the rear drive-

shaft.

17. Remove the positive cable from the starter

motor and route it out of the way.

18. Disconnect the speed sensor lead from the wir-

ing harness.

CF172A

19. Disconnect the stator-to-rectifier/regulator con-

nector.

20. Remove the temperature sensor wires from the

engine.

NOTE: There are two temperature sensors.

CC939

21. Remove the spark plug wire from the spark

plug.

22. Remove the shift indicator connector from the

main wiring harness.

23. Remove the cap screw securing the engine

ground wire to the engine.

24. Remove the two engine mounting through-bolts.

Account for a spacer on the lower front bolt.

CF193

CF194

25. Slightly raise the front of the engine to disen

gage the front driveshaft from the front output

yoke.

CD096

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3

26. Remove the engine from the left side by moving

the engine forward while raising the engine in

the rear and rotating the engine clockwise. The

engine will come out the left side of the frame.

Top-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to removed from the frame for this procedure.

Removing Top-Side

Components

A. Valve Cover

B. Cylinder Head

NOTE: Remove the spark plug and timing

inspection plug; then using the recoil starter,

rotate the crankshaft to top-dead-center of the

compression stroke.

NOTE: Arctic Cat recommends the use of new

gaskets, lock nuts, and seals and lubricating all

internal components when servicing the

engine/transmission.

1. Remove the cap screws securing the two tappet

covers. Remove the two tappet covers. Account

for the O-rings.

MD1264

NOTE: Keep the mounting hardware with the

covers for assembly purposes.

2. Remove the 12 valve cover cap screws. Note the

rubber washers on the four top-side cap screws;

remove the valve cover. Note the orientation of

the cylinder head plug and remove it. Note the

location of the two alignment pins.

MD1261

MD1354A

3. Loosen the cap screw on the end of the cam

chain tensioner; then remove the two Allen-head

screws securing the cam chain tensioner assem-

bly. Remove the tensioner assembly and gasket.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

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MD1245

4. Remove the cam chain tensioner pivot cap

screw and washer.

MD1251

5. Bend the washer tabs and remove the two cap

screws securing the sprocket to the camshaft.

MD1136

MD1137

6. Using an awl, rotate the C-ring in its groove

until it is out of the cylinder head; then remove

the C-ring.

NOTE: Care should be taken not to drop the

C-ring down into the crankcase.

MD1131

7. Noting the timing marks for installing purposes,

drop the sprocket off the camshaft. While hold-

ing the cam chain, slide the sprocket and cam-

shaft out of the cylinder head. Account for an

alignment pin.

NOTE: Loop the chain over the cylinder and

secure it with a wire to keep it from falling into the

crankcase.

MD1132

8. Remove the cam chain tensioner by lifting it

from the chain cavity; then remove the two

lower nuts securing the cylinder head to the cyl-

inder, one in front and one in rear.

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3

MD1192

9. Remove the four cylinder head cap screws and

washers. Note that the two cap screws on the

right side of the cylinder head nearest the cam

sprocket are longer than the two cap screws on

the left (spark plug) side.

CD211

10. Remove the cylinder head from the cylinder,

remove the gasket, and account for two align-

ment pins.

MD1163

11. Remove the cam chain guide.

MD1173

C. Cylinder

D. Piston

NOTE: Steps 1-11 in the preceding sub-section

must precede this procedure.

12. Remove the two nuts securing the right side of

the cylinder to the right-side crankcase half.

Account for the washers.

MD1226A

13. Lift the cylinder off the crankcase taking care

not to allow the piston to drop against the crank-

case. Account for the gasket and two alignment

pins.

AT THIS POINT

To service valves and cylinder head, see

Servicing Top-Side Components sub-section.

AT THIS POINT

To inspect cam chain guide, see Servicing

Top-Side Components sub-section.

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MD1214

14. Using an awl, remove one piston-pin circlip.

Take care not to drop it into the crankcase.

MD1213

15. Using Piston Pin Puller (p/n 0644-328), remove

the piston pin. Account for the opposite-side cir-

clip. Remove the piston.

NOTE: It is advisable to remove the oppo-

site-side circlip prior to using the puller.

MD1219

NOTE: Support the connecting rod with rubber

bands to avoid damaging the rod or install a con-

necting rod holder.

NOTE: If the existing rings will not be replaced

with new rings, note the location of each ring for

proper installation. When replacing with new rings,

replace as a complete set only. If the piston rings

must be removed, remove them in this sequence.

MD1211

A. Starting with the top ring, slide one end of the

ring out of the ring-groove.

B. Remove each ring by working it toward the

dome of the piston while rotating it out of the

groove.

AT THIS POINT

To service cylinder, see Servicing Top-Side

Components sub-section.

! CAUTION

When removing the cylinder, be sure to support the

piston to prevent damage to the crankcase and pis-

ton.

! CAUTION

Do not allow the connecting rod to go down inside

the crankcase. If the rod is down inside the crank-

case and the crankshaft is rotated, severe damage

will result.

AT THIS POINT

To service piston, see Servicing Top-Side

Components sub-section.

AT THIS POINT

To service center crankcase components only,

proceed to Removing Left-Side Components.

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3

Left-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to be removed from the frame for this procedure.

Removing Left-Side

Components

A. Recoil Starter

B. Starter Cup

C. Cover/Stator Assembly

1. Remove the four recoil starter cover cap screws.

Remove the recoil starter assembly noting the

location of the single washer. Note the condition

of the recoil cover gasket. Replace if damaged.

2. Remove the flange nut securing the starter cup

to the crankshaft; then remove the starter cup.

Account for the O-ring inside the cup.

MD1303

MD1304

3. Lay the engine/transmission on its right side.

Remove the 15 left-side cover-to-crankcase

mounting cap screws noting the location of the 8

mm cap screw with the washer near the middle

of the left-side cover. Keep the differ-

ent-lengthed 6 mm cap screws in order for

installing purposes.

MD1186

4. Using Side Case Puller (p/n 0644-262) and the 6

mm adapter, remove the left-side cover w/stator

assembly. Note the condition of the gasket.

Replace if necessary. Account for the two align-

ment pins and the position of the shifter bracket

for installing purposes.

CC946

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

AT THIS POINT

To service the recoil starter, see Servicing

Left-Side Components sub-section.

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MD1188

NOTE: Inspect the inside of the left-side cover

for any shaft washers that may have come off with

the cover. Make sure they are returned to their

respective shafts and that the starter idler gear

spacer is on the shaft or in the cover.

D. Rotor/Flywheel

E. Starter Motor

NOTE: Steps 1-4 in the preceding sub-section

must precede this procedure.

5. Remove the rotor/flywheel nut.

MD1194

6. Install the crankshaft protector.

MD1365

7. Using Magneto Rotor Remover (p/n 0444-075),

break the rotor/flywheel assembly loose from

the crankshaft. Remove the remover, the crank-

shaft protector, the rotor/flywheel, and the

starter clutch gear. Account for the key.

MD1368

MD1369

MD1370

8. Remove the starter idler gear (No. 1) and starter

idler gear (No. 2).

! CAUTION

Care must be taken that the remover is fully

threaded onto the rotor/flywheel or damage may

occur.

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3

MD1305

9. Remove the gear shift shaft assembly and

washer from the left-side crankcase. Note the

positions of the alignment marks and washer for

installing purposes; then release the cam stopper

spring tension.

MD1239

10. Remove the shift detent cam. Note position of

spacer for installing purposes.

11. Remove the cam stopper assembly.

12. Remove the spacer from the driveshaft noting

the direction of the stepped side for installing

purposes.

MD1224

13. Remove two starter motor cap screws.

MD1078

14. Remove starter motor by tapping lightly with a

mallet.

15. Using an impact screwdriver, remove the three

Phillips-head screws holding the crankshaft

bearing retainer. Remove the crankshaft bearing

retainer.

MD1122

Right-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to be removed from the frame for this procedure.

AT THIS POINT

To service center crankcase components only,

proceed to Removing Right-Side Components.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information

in each sub-section.

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3-86

Removing Right-Side

Components

A. V-Belt Cover

B. Driven Pulley

C. Clutch Cover

1. If the engine is still in the frame, turn the gas

tank valve to the OFF position. Remove the cap

screws securing the right-side V-belt cover to

the clutch cover. Remove the cover. Note the

locations of the long cap screws and the two

wire forms. Account for the gasket and for two

alignment pins.

MD1306

MD1307

2. Mark the movable drive face and the fixed drive

face for installing purposes; then remove the nut

holding the movable drive face onto the crank-

shaft.

MD1033

3. Remove the movable drive face and spacer.

Account for the eight movable drive face rollers

and outer drive face cover.

MD1035

MD1034

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3-87

3

MD1036

4. Remove the V-belt.

MD1118

5. Remove the fixed drive face.

MD1094

6. Remove the nut holding the driven pulley

assembly; then remove the driven pulley assem-

bly.

MD1068

7. Using an impact screwdriver, remove the three

Phillips-head cap screws holding the air intake

plate. Remove the air intake plate.

MD1092

8. Remove the cap screws holding the clutch cover

onto the right-side crankcase half. Note the posi-

tions of the different-lengthed cap screws for

installing purposes.

9. Using a rubber mallet, loosen the clutch cover;

then pull it away from the right-side crankcase

half. Account for two alignment pins and gasket.

MD1115

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3-88

D. Gear Position Switch

E. Centrifugal Clutch Assembly

F. Oil Pump Drive Gear

G. Oil Pump Driven Gear

NOTE: Steps 1-9 in the preceding sub-section

must precede this procedure.

MD1072

10. Remove the cap screws holding the gear posi-

tion indicator switch onto the right-side crank-

case half.

MD1041

11. Remove the gear position indicator switch.

Account for two contact pins and two springs.

MD1040

MD1043

12. Remove the one-way sprag clutch noting the

direction of the green dot or the stamp tag OUT-

SIDE for installing purposes.

MD1286

13. Remove the left-hand threaded nut holding the

centrifugal clutch assembly.

MD1014

! CAUTION

Care must be taken when removing the nut; it has

“left-hand” threads.

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3-89

3

MD1016

14. Remove the cam chain.

MD1335

15. Remove the oil pump drive gear cap screw.

MD1018

16. Remove oil pump drive gear. Account for the

pin.

MD1017

17. Remove the snap ring holding the oil pump

driven gear.

MD1019

NOTE: Always use a new snap ring when install-

ing the oil pump driven gear.

18. Remove oil pump driven gear. Account for the

pin.

MD1020

H. Oil Pump/Oil Strainer

NOTE: Steps 1-18 in the preceding sub-sections

must precede this procedure.

19. Remove three Phillips-head screws holding the

oil pump and remove the oil pump. Account for

two alignment pins.

AT THIS POINT

To service clutch components, see Servicing

Right-Side Components sub-section.

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MD1060

20. Remove the four cap screws securing the oil

strainer cover; then remove the Phillips-head

screws securing the oil strainer. Account for the

O-ring.

NOTE: Note the directional arrow for installing

purposes.

MD1207

Center Crankcase

Components

NOTE: This procedure cannot be done with the

engine/transmission in the frame. Complete

Removing procedures for Top-Side, Left-Side, and

Right-Side must precede this procedure.

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

Separating Crankcase

Halves

1. Remove the left-side and right-side cap screws

securing the crankcase halves noting the posi-

tion of the different-sized cap screws for joining

purposes.

MD1006

MD1012

2. Using Crankcase Separator/Crankshaft Remover

(p/n 0444-009) and tapping lightly with a rubber

mallet, separate the crankcase halves. Account

for two alignment pins.

AT THIS POINT

To service center crankcase components only,

proceed to Separating Crankcase Halves.

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3

CC869

NOTE: To keep the shaft/gear assemblies intact

for identification, tap the shafts toward the

left-side crankcase half when separating the

halves.

MD1313

Disassembling

Crankcase Half

1. Remove the secondary and primary driveshaft

assemblies. Account for the bearing alignment

C-ring on the bearing boss next to the pinion

gear.

MD1317

NOTE: Note the location of the bearing align-

ment pin on the secondary output shaft.

2. Remove the reverse idler gear, spacer, and

sleeve. Account for the washers.

MD1325

CC870

3. Remove the driveshaft.

MD1326

4. Remove the shift fork shaft and the outer shift

fork.

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MD1327

5. Remove snap ring and gear from the output side

of the gear cluster. Remove the gear cluster and

the inner shift fork together. Account for snap

ring, gear, and washer.

MD1328

6. Noting the position of the two holes on the end,

remove the shift cam assembly. Account for

inner and outer washers.

MD1329

7. Remove the counterbalance gear. Account for

the key.

8. Remove the counterbalance shaft.

MD1024

9. Using Crankcase Separator/Crankshaft Remover

(p/n 0444-009), remove the crankshaft.

MD1330

10. Remove the secondary drive gear/secondary

driven gear retaining nut. From inside the crank

case using a rubber mallet, drive out the output

shaft assembly. Account for the output shaft, a

shim, a washer, and the nut.

! CAUTION

Do not remove the remaining output shaft assembly

unless absolutely necessary. If the shaft is removed,

the shaft nut must be replaced with a new one and

the shaft must be re-shimmed.

AT THIS POINT

To service crankshaft assembly, see Servicing

Center Crankcase Components sub-section.

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3-93

3

Table of Contents

(Servicing Components)

NOTE: Critical engine/transmission specifica-

tions are located at the beginning of this section.

Servicing Top-Side Components ……..……………... 3-93

Valve Assembly ………………….…………….……….. 3-93

Piston Assembly ……….…………….…………….….. 3-96

Cylinder/Cylinder Head Assembly ………………… 3-98

Servicing Left-Side Components .…………….…… 3-101

Recoil Starter ………………………….……………. 3-101

Servicing Right-Side Components ……………… 3-104

Inspecting Centrifugal Clutch Shoe ……………. 3-104

Inspecting Centrifugal Clutch Housing ……… 3-104

Inspecting Primary One-Way Drive ………….. 3-104

Inspecting Oil Pump ..…………….…………….…… 3-105

Driven Pulley Assembly ………………..………… 3-105

Servicing Center Crankcase Components ……… 3-109

Secondary Gears ………………….………….……… 3-109

Crankshaft Assembly ……………….……………. 3-110

Countershaft …………….…………….……………. 3-111

Crank Balancer Driven Gear………………….…… 3-112

Servicing Top-Side

Components

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

VALVE ASSEMBLY

When servicing valve assembly, inspect valve seats,

valve stems, valve faces, and valve stem ends for

pits, burn marks, or other signs of abnormal wear.

NOTE: Whenever a valve is out of tolerance, it

must be replaced.

Cleaning/Inspecting Valve Cover

NOTE: If the valve cover cannot be trued, the cyl-

inder head assembly must be replaced.

1. Wash the valve cover in parts-cleaning solvent.

2. Place the valve cover on the Surface Plate (p/n

0644-016) covered with #400 grit wet-or-dry

sandpaper. Using light pressure, move the valve

cover in a figure eight motion. Inspect the seal-

ing surface for any indication of high spots. A

high spot can be noted by a bright metallic fin-

ish. Correct any high spots before assembly by

continuing to move the valve cover in a figure

eight motion until a uniform bright metallic fin-

ish is attained.

CC130D

Removing Valves

NOTE: Keep all valves and valve components as

a set. Note the original location of each valve set

for use during installation. Return each valve set to

its original location during installation.

1. Using a valve spring compressor, compress the

valve springs and remove the valve cotters.

Account for an upper spring retainer.

! CAUTION

Do not remove an excessive amount of the sealing

surface or damage to the camshaft will result.

Always check camshaft clearance when resurfacing

the valve cover.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

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3-94

CC994

2. Remove the valve seal and the lower remaining

spring seat. Discard the valve seal.

CC134D

CC136D

NOTE: The valve seals must be replaced.

3. Remove the valve springs; then invert the cylin-

der head and remove the valves.

Measuring Valve Stem Runout

1. Support each valve stem end with the V Blocks

(p/n 0644-022); then check the valve stem

runout using a dial indicator.

ATV-1082

2. Maximum runout must not exceed specifica-

tions.

Measuring Valve Stem Outside

Diameter

1. Using a micrometer, measure the valve stem

outside diameter.

2. Acceptable diameter range (intake valve) must

be within specifications.

3. Acceptable diameter range (exhaust valve) must

be within specifications.

Measuring Valve Face/Seat Width

1. Using a micrometer, measure the width of the

valve face.

ATV-1004

2. Acceptable width range must be within specifi-

cations.

Measuring Valve Face Radial

Runout

1. Mount a dial indicator on the surface plate; then

place the valve stem on a set of V blocks.

2. Position the dial indicator contact point on the

outside edge of the valve face; then zero the

indicator.

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3

ATV1082A

3. Rotate the valve in the V blocks.

4. Maximum runout must not exceed specifica-

tions.

Measuring Valve Guide/Valve Stem

Deflection (Wobble Method)

1. Mount a dial indicator and base on the surface

plate; then place the cylinder head on the surface

plate.

2. Install the valve into the cylinder head; then

position the dial indicator contact point against

the outside edge of the valve face. Zero the indi-

cator.

CC131D

3. Push the valve from side to side; then from top

to bottom.

4. Maximum “wobble” deflection must not exceed

specifications.

Measuring Valve Guide

(Inside Diameter)

1. Insert a snap gauge 1/2 way down into each

valve guide bore; then remove the gauge and

measure it with a micrometer.

2. Acceptable inside diameter range must be

within specifications.

3. If a valve guide is out of tolerance, it must be

replaced.

Servicing Valves/Valve

Guides/Valve Seats

If valves, valve guides, or valve seats require servic-

ing or replacement, Arctic Cat recommends that the

components be taken to a qualified machine shop

for servicing.

Measuring Rocker Arm

(Inside Diameter)

1. Using a dial calipers, measure the inside diame-

ter of the rocker arm.

2. Acceptable inside diameter range must be

within specifications.

Measuring Rocker Arm Shaft

(Outside Diameter)

1. Using a micrometer, measure the outside diame-

ter of the rocker arm shaft.

2. Acceptable outside diameter range must be

within specifications.

Installing Valves

1. Apply grease to the inside surface of the valve

seals; then place a lower spring seat and valve

guide seal over each valve guide.

CC144D

2. Insert each valve into its original valve location.

3. Install the valve springs with the painted end of

the spring facing away from the cylinder head.

! CAUTION

If valves are discolored or pitted or if the seating

surface is worn, the valve must be replaced. Do not

attempt to grind the valves or severe engine damage

may occur.

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3-96

NOTE: If the paint is not visible, install the ends

of the springs with the closest wound coils toward

the head.

ATV-1011A

4. Place a spring retainer over the valve springs;

then using the valve spring compressor, com-

press the valve springs and install the valve cot-

ters.

CC994

PISTON ASSEMBLY

NOTE: Whenever a piston, rings, or pin are out

of tolerance, they must be replaced.

Cleaning/Inspecting Piston

1. Using a non-metallic carbon removal tool,

remove any carbon buildup from the dome of

the piston.

2. Inspect the piston for cracks in the piston pin,

dome, and skirt areas.

3. Inspect the piston for seizure marks or scuffing.

Repair with #400 grit wet-or-dry sandpaper and

water or honing oil.

NOTE: If scuffing or seizure marks are too deep

to correct with the sandpaper, replace the piston.

4. Inspect the perimeter of each piston for signs of

excessive “blowby.” Excessive “blowby” indi-

cates worn piston rings or an out-of-round cylin-

der.

Removing Piston Rings

1. Starting with the top ring, slide one end of the

ring out of the ring-groove.

CC400D

2. Remove each ring by working it toward the

dome of the piston while rotating it out of the

groove.

NOTE: If the existing rings will not be replaced

with new ones, note the location of each ring for

proper installation. When installing new rings,

install as a complete set only.

Cleaning/Inspecting Piston Rings

1. Take an old piston ring and snap it into two

pieces; then grind the end of the old ring to a 45°

angle and to a sharp edge.

2. Using the sharpened ring as a tool, clean carbon

from the ring-grooves. Be sure to position the

ring with its tapered side up.

Measuring Piston-Ring End Gap

(Installed)

1. Place each piston ring in the wear portion of the

cylinder. Use the piston to position each ring

squarely in the cylinder.

2. Using a feeler gauge, measure each piston-ring

end gap. Acceptable ring end gap must not

exceed specifications.

! CAUTION

Improper cleaning of the ring-grooves by the use

of the wrong type of ring-groove cleaner will

result in severe damage to the piston.

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3

CC995

Measuring Piston Pin (Outside

Diameter) and Piston-Pin Bore

1. Measure the piston pin outside diameter at each

end and in the center. If measurement is not

within specifications, the piston pin must be

replaced.

ATV-1070

2. Insert an inside dial indicator into the piston-pin

bore. The diameter must not exceed specifica-

tions. Take two measurements to ensure accu-

racy.

ATV-1069

Measuring Piston Skirt/

Cylinder Clearance

1. Measure the cylinder front to back in six places.

CC397D

2. Measure the corresponding piston diameter at a

point 15 mm (0.6 in.) above the piston skirt at a

right angle to the piston-pin bore. Subtract this

measurement from the measurement in step 1.

The difference (clearance) must be within speci-

fications.

Installing Piston Rings

1. Install ring expander (4) in the bottom groove of

the piston; then install the thin oil rings (3) over

the expander making sure the expander ends do

not overlap. Stagger the end gaps of the upper

and lower thin oil rings according to the illustra-

tion.

NOTE: Note the direction of the exhaust side of

the piston (5) for correct ring end gap orientation.

ATV-1085B

2. Install the compression rings (1 and 2) so the let-

ter on the top surface of each ring faces the

dome of the piston. Rotate the rings until the

ring end gaps are on directly opposite sides of

the piston according to the illustration.

NOTE: The chrome (silver) ring should be

installed in the top position.

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3-98

726-306A

CYLINDER/CYLINDER HEAD

ASSEMBLY

NOTE: If the cylinder/cylinder head assembly

cannot be trued, they must be replaced.

Cleaning/Inspecting Cylinder Head

1. Using a non-metallic carbon removal tool,

remove any carbon buildup from the combus-

tion chamber being careful not to nick, scrape,

or damage the combustion chamber or the seal-

ing surface.

2. Inspect the spark plug hole for any damaged

threads. Repair damaged threads using a

“heli-coil” insert.

3. Place the cylinder head on the surface plate cov-

ered with #400 grit wet-or-dry sandpaper. Using

light pressure, move the cylinder head in a fig-

ure eight motion. Inspect the sealing surface for

any indication of high spots. A high spot can be

noted by a bright metallic finish. Correct any

high spots before assembly by continuing to

move the cylinder head in a figure eight motion

until a uniform bright metallic finish is attained.

CC996

Measuring Cylinder Head

Distortion

1. Remove any carbon buildup in the combustion

chamber.

2. Lay a straightedge across the cylinder head; then

using a feeler gauge, check the distortion factor

between the head and the straightedge.

3. Maximum distortion must not exceed specifica-

tions.

CC141D

Cleaning/Inspecting Cylinder

1. Wash the cylinder in parts-cleaning solvent.

2. Inspect the cylinder for pitting, scoring, scuff-

ing, warpage, and corrosion. If marks are found,

repair the surface using a cylinder hone (see

Honing Cylinder in this sub-section).

3. Place the cylinder on the surface plate covered

with #400 grit wet-or-dry sandpaper. Using light

pressure, move the cylinder in a figure eight

motion. Inspect the sealing surface for any indi-

cation of high spots. A high spot can be noted by

a bright metallic finish. Correct any high spots

before assembly by continuing to move the cyl-

inder in a figure eight motion until a uniform

bright metallic finish is attained.

! CAUTION

Incorrect installation of the piston rings will result in

engine damage.

! CAUTION

The cylinder head studs must be removed for this

procedure.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

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3

CC997

Inspecting Cam Chain Guide

1. Inspect cam chain guide for cuts, tears, breaks,

or chips.

2. If the chain guide is damaged, it must be

replaced.

Honing Cylinder

1. Using a slide gauge and a dial indicator or a

snap gauge, measure the cylinder bore diameter

in three locations from top to bottom and again

from top to bottom at 90° from the first mea-

surements for a total of six measurements. The

trueness (out-of-roundness) is the difference

between the highest and lowest reading. Maxi-

mum trueness (out-of-roundness) must not

exceed specifications.

CC127D

2. Wash the cylinder in parts-cleaning solvent.

3. Inspect the cylinder for pitting, scoring, scuff-

ing, and corrosion. If marks are found, repair the

surface using a ball hone.

NOTE: To produce the proper 60° cross-hatch

pattern, use a low RPM drill (600 RPM) at the rate

of 30 strokes per minute. If honing oil is not avail-

able, use a lightweight petroleum-based oil. Thor-

oughly clean cylinder after honing using soap and

hot water. Dry with compressed air; then immedi-

ately apply oil to the cylinder bore. If the bore is

severely damaged or gouged, replace the cylinder.

CC390D

4. If any measurement exceeds the limit, bore the

cylinder and install an oversized piston or

replace the cylinder.

NOTE: Oversized piston and rings are available.

The oversized piston and rings are marked for

identification.

ATV-1068A

Measuring Camshaft Runout

NOTE: If the camshaft is out of tolerance, it must

be replaced.

1. Place the camshaft on a set of V blocks; then

position the dial indicator contact point against

the shaft and zero the indicator.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

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3-100

CC283D

2. Rotate the camshaft and note runout; maximum

tolerance must not exceed specifications.

Measuring Camshaft Lobe Height

1. Using a calipers, measure each cam lobe height.

ATV1013A

2. The lobe heights must not exceed minimum

specifications.

Inspecting Camshaft Bearing

Journal

1. Inspect the bearing journal for scoring, seizure

marks, or pitting.

2. If excessive scoring, seizure marks, or pitting is

found, the cylinder head assembly must be

replaced.

Measuring Camshaft to

Cylinder Head Clearance

1. Remove the adjuster screws and jam nuts.

CC005D

2. Place a strip of plasti-gauge in each of the cam-

shaft lands in the cylinder head.

3. Place the valve cover on the cylinder head and

secure with the valve cover cap screws. Tighten

securely.

NOTE: Do not rotate the camshaft when measur-

ing clearance.

4. Remove the cap screws securing the valve cover

to the cylinder; then remove the valve cover and

camshaft.

MD1261

5. Match the width of the plasti-gauge with the

chart found on the plasti-gauge packaging to

determine camshaft to cylinder head and valve

cover clearance.

CC145D

6. If clearance is excessive, measure the journals of

the camshaft.

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3-101

3

CC287D

NOTE: If the journals are worn, replace the cam-

shaft; then measure the clearance again. If it is still

out of tolerance, replace the cylinder head.

Inspecting Camshaft Spring/Drive

Pin

1. Inspect the spring and unloader pin for damage.

CF061A

NOTE: With the weight extended, the unloader

pin should be flat-side out; with the weight

retracted, the unloader pin should be round-side

out.

CF060A

2. If damaged, the camshaft must be replaced.

Servicing Left-Side

Components

RECOIL STARTER

0737-034

Removing/Disassembling

1. Remove the cap screws securing the recoil

starter assembly to the left-side cover; then

remove the starter.

CC039D

2. Rotate the reel counterclockwise until the notch

of the reel is near the rope guide in the case.

Guide the rope into the notch and slowly allow

the reel to retract until all spiral spring tension is

released.

! WARNING

Always wear safety glasses when servicing the

recoil starter.

! WARNING

During the disassembly procedure, continuous

downward pressure must be exerted on the reel so it

does not accidentally disengage and cause injury.

KEY

1. Recoil Starter Assy

2. Reel

3. Spiral Spring

4. Ratchet Assy

5. Ratchet

6. Ratchet Guide

7. Nut

8. Rope Assy

9. Cap Screw

10. Starter Cup

11. Nut

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B600D

3. Remove the nut.

B601D

4. Slowly release the friction plate and lift the plate

with ratchet guide free of the recoil case; then

remove the ratchet guide from the friction plate.

B602D

5. Remove the spring cover, spring, and shaft.

B603D

6. Remove the ratchet and account for the pin.

B604D

7. Carefully lift the reel free of the case making

sure the spiral spring does not accidentally dis-

engage from the case.

B605D

8. Remove the protective cover from the starter

handle and pull the rope out of the handle; then

untie the knot in the rope and remove the han-

dle.

NOTE: Do not remove the spiral spring unless

replacement is necessary. It should be visually

inspected in place to save time. If replacement is

necessary, follow steps 9-10.

! CAUTION

During the disassembly procedure, make sure all

spring tension is released before continuing.

! WARNING

Care must be taken when lifting the reel free of the

case. Wear safety glasses to avoid injury.

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3-103

3

9. Remove the spiral spring from the case by lift-

ing the spring end up and out. Hold the remain-

der of the spring with thumbs and alternately

release each thumb to allow the spring to gradu-

ally release from the case.

10. Unwind the rope from the reel and remove the

rope.

Cleaning and Inspecting

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all components.

2. Inspect the springs and ratchet for wear or dam-

age.

3. Inspect the reel and case for cracks or damage.

4. Inspect the shaft for wear, cracks, or damage.

5. Inspect the rope for breaks or fraying.

6. Inspect the spiral spring for cracks, crystalliza-

tion, or abnormal bends.

7. Inspect the handle for damage, cracks, or deteri-

oration.

Assembling/Installing

1. If removed, insert the spiral spring into the case

with the outer end of the spring around the

mounting lug in the case; then wind it in a coun-

terclockwise direction until the complete spring

is installed.

NOTE: The spiral spring must seat evenly in the

recoil case.

B606D

2. Insert the rope through the hole in the reel and

tie a knot in the end; then wrap the rope counter

clockwise around the reel leaving approximately

50 cm (20 in.) of rope free of the reel.

3. Apply low-temperature grease to the spring and

hub.

4. Thread the end of the rope through the guide

hole of the case; then thread the rope through the

handle and secure it with a double knot. Install

the protective cover into the handle.

5. Align the inner hook of the spiral spring with the

notch in the reel.

B605D

6. Install the ratchet onto its pin making sure the

end is properly installed on the reel.

B604D

7. Install the shaft, spring, and the spring cover.

B603D

8. Install the friction plate with the ratchet guide

fitting into the ratchet.

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B602D

9. While pushing down on the reel, install the nut.

Tighten securely.

B601D

10. With the 50 cm (20 in.) of rope exposed, hook

the rope in the notch of the reel.

11. Rotate the reel four turns counterclockwise; then

release the rope from the notch and allow the

rope to retract.

12. Pull the rope out two or three times to check for

correct tension.

NOTE: Increasing the rotations in step 11 will

increase spring tension.

13. Place the recoil starter assembly into position on

the left-side cover; then tighten the cap screws

to specifications.

Servicing Right-Side

Components

NOTE: Whenever a part is worn excessively,

cracked, damaged in any way, or out of tolerance,

replacement is necessary.

INSPECTING CENTRIFUGAL

CLUTCH SHOE

1. Inspect the clutch shoe for uneven wear, chips,

cracks, or discoloration.

2. Inspect the depth of the grooves in the clutch

shoes. If any shoe is worn to the bottom of the

groove, replace the complete set.

ATV1014

INSPECTING CENTRIFUGAL

CLUTCH HOUSING

1. Inspect the clutch housing for burns, marks,

scuffs, cracks, scratches, or uneven wear.

2. If the housing is damaged in any way, the hous-

ing must be replaced.

INSPECTING PRIMARY

ONE-WAY DRIVE

1. Insert the drive into the clutch housing.

2. Rotate the inner race by hand and verify the

inner race rotates only one direction.

3. If the inner race is locked in place or rotates both

directions, the drive assembly must be replaced.

! CAUTION

Always replace clutch shoes as a complete set or

severe imbalance could occur.

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3

INSPECTING OIL PUMP

1. Inspect the pump for damage.

2. It is inadvisable to remove the screw securing

the pump halves. If the oil pump is damaged, it

must be replaced.

CC446D

DRIVEN PULLEY ASSEMBLY

Disassembling

1. Secure Driven Pulley Compressor (p/n

0444-140) in a suitable holding fixture such as a

bench vise; then remove the wing nut, holding

handle, flat washer, and pilot bushing leaving

the large spacer on the compressor tool base.

CD047

2. Place the driven pulley assembly onto the com-

pressor tool base engaging the dowel pins into

appropriate holes in the fixed face of the assem-

bly.

CD048

3. Install the pilot bushing with the machined end

directed down; then fit the bushing into the pul-

ley hub.

CD067

4. Using a suitable marking pen, make alignment

marks on the fixed face spring holder and both

pulley faces.

CD049

5. Place the holding handle on the spring holder

fitting the two dowel pins into the spring holder

face; then install a flat washer and the wing nut.

Turn the wing nut down until resistance is felt.

NOTE: Do not use the wing nut to compress the

spring further.

! WARNING

This procedure involves relaxing a compressed

spring assembly. DO NOT attempt disassembling

without the proper tools.

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CD050

6. Using a spanner and suitable breaker bar, loosen

the notched-ring nut; then spin the nut free of

the hub.

CD051

7. Firmly hold the handle and slowly turn the wing

nut counterclockwise to relax the spring.

NOTE: There will be a tendency for the handle to

rotate clockwise approximately ¼ turn as the

spring holder clears the flats or hub. This is due to

a slight counterclockwise preload on the spring.

CD052

8. Release the preload slowly; then continue to

relax the spring until the wing nut is flush with

the end of the threads.

9. Firmly holding the spring and spring holder,

remove the wing nut; then remove the spring.

CD053

10. Using a thin pry-bar or screwdriver, work the

movable face sleeve upward and free of the

O-rings; then remove the sleeve.

CD054

11. Remove the three pins and spacers from the cam

slots in the movable face; then remove the mov-

able face.

CF091

! WARNING

The spring assembly is under pressure. Extreme

care must be taken when relaxing the spring. Always

wear safety glasses. Use proper tools only.

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3

CD056

Inspecting

1. Inspect the pulley faces for wear, galling, or

grooving.

2. Inspect the O-rings on the movable face for

nicks, tears, or swelling.

CF092A

3. Inspect two grease seals in the movable face for

nicks, cuts, or damage.

CF095A

4. Inspect the pins and bushings for wear, flat

spots, looseness, or cracking.

Assembling

1. Place the fixed face of the driven pulley on the

pulley compressor base making sure the dowel

pins are engaged in the appropriate holes in the

pulley face.

NOTE: Make sure the spacer is on the base or

damage to the fixed face will occur when the

spring is compressed.

CD048

2. Apply multi-purpose grease to the O-rings and

grease seals on the movable face; then install on

the fixed face making sure the alignment marks

are properly aligned.

CD060

3. Install the three pins and spacers into the fixed

face hub; then pack the cam slots in the movable

face with multi-purpose grease.

CD061

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4. Install the movable face sleeve aligning the hole

in the spring seat with the spring anchor hole in

the movable face.

CF097

5. Install the spring over the hub and movable face

sleeve; then insert the end of the spring through

the sleeve and into the spring anchor hole in the

movable face.

CF089A

6. Place the spring holder on the spring engaging

the spring end with the appropriate anchor hole.

CF087A

7. Assemble the notched-ring nut, spring holding

handle, one flat washer, and the wing nut in

order on the pulley compressor bolt; then thread

the wing nut onto the bolt.

CD052

8. Compress the spring until the spring holder

nears the threads on the fixed face hub; then

using the handle, wind the spring holder coun-

terclockwise to align the flats of the spring

holder and hub.

CD052A

9. Continue compressing the spring while guiding

the spring holder onto the hub. When a slight

resistance is felt, stop turning the wing nut.

10. Install the nut (threads coated with red Loctite

#271); then tighten the nut to specification using

the spanner and a torque wrench.

CD066

11. Remove the wing nut, washer, and holding han-

dle; then remove the driven pulley from the pul-

ley compressor.

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3

Servicing Center

Crankcase Components

NOTE: Whenever a part is worn excessively,

cracked, damaged in any way, or out of tolerance,

replacement is necessary.

SECONDARY GEARS

NOTE: When checking and correcting secondary

gear backlash and tooth contact, the universal

joint must be secured to the front shaft or false

measurements will occur.

Checking Backlash

NOTE: The rear shaft and bevel gear must be

removed for this procedure. Also, always start with

the original shims on the rear shaft.

1. Place the left-side crankcase cover onto the

left-side crankcase half to prevent runout of the

secondary transmission output shaft.

2. Install the secondary driven output shaft assem-

bly onto the crankcase.

3. Mount the indicator tip of the dial indicator on

the secondary driven bevel gear.

4. While rocking the driven bevel gear back and

forth, note the maximum backlash reading on

the gauge.

5. Acceptable backlash range is 0.05-0.33 mm

(0.002-0.013 in.).

Correcting Backlash

NOTE: If backlash measurement is within the

acceptable range, no correction is necessary.

1. If backlash measurement is less than specified,

remove an existing shim, measure it, and install

a new thinner shim.

2. If backlash measurement is more than specified,

remove an existing shim, measure it, and install

a thicker shim.

NOTE: Continue to remove, measure, and install

until backlash measurement is within tolerance.

Note the following chart.

Checking Tooth Contact

NOTE: After correcting backlash of the second-

ary driven bevel gear, it is necessary to check

tooth contact.

1. Remove the secondary driven output shaft

assembly from the left-side crankcase half.

2. Clean the secondary driven bevel gear teeth of

old oil and grease residue.

3. Apply a thin, even coat of a machinist-layout

dye to several teeth of the gear.

4. Install the secondary driven output shaft assem-

bly.

5. Rotate the secondary driven bevel gear several

revolutions in both directions.

6. Examine the tooth contact pattern in the dye and

compare the pattern to the illustrations.

ATV-0103

ATV-0105

Backlash Measurement Shim Correction

Under 0.05 mm (0.002 in.) Decrease Shim

Thickness

At 0.05-0.33 mm

(0.002-0.013 in.)

No Correction Required

Over 0.33 mm (0.013 in.) Increase Shim

Thickness

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ATV-0104

Correcting Tooth Contact

NOTE: If tooth contact pattern is comparable to

the correct pattern illustration, no correction is

necessary.

If tooth contact pattern is comparable to an incorrect

pattern, correct tooth contact according to the fol-

lowing chart.

NOTE: To correct tooth contact, steps 1 and 2

(with NOTE) of “Correcting Backlash” must be fol-

lowed and the above “Tooth Contact/Shim Correc-

tion” chart must be consulted.

CRANKSHAFT ASSEMBLY

Measuring Connecting Rod

(Small End Inside Diameter)

1. Insert a snap gauge into the upper connecting

rod small end bore; then remove the gauge and

measure it with micrometer.

CC290D

2. Maximum diameter must not exceed specifica-

tions.

Measuring Connecting Rod

(Small End Deflection)

1. Place the crankshaft on a set of V-blocks and

mount a dial indicator and base on the surface

plate. Position the indicator contact point against

the center of the connecting rod small end jour

nal.

2. Zero the indicator and push the small end of the

connecting rod away from the dial indicator.

3. Maximum deflection must not exceed specifica-

tions.

Measuring Connecting Rod

(Big End Side-to-Side)

1. Push the lower end of the connecting rod to one

side of the crankshaft journal.

2. Using a feeler gauge, measure the gap between

the connecting rod and crankshaft journal.

CC289D

3. Acceptable gap range must be within specifica-

tions.

Tooth Contact Shim Correction

Contacts at Top Decrease Shim Thickness

Contacts at Root Increase Shim Thickness

! CAUTION

After correcting tooth contact, backlash must again

be checked and corrected (if necessary). Continue

the correcting backlash/correcting tooth contact pro-

cedures until they are both within tolerance values.

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3

Measuring Connecting Rod

(Big End Width)

1. Using a calipers, measure the width of the

connecting rod at the big-end bearing.

2. Acceptable width range must be within specifi-

cations.

Measuring Crankshaft (Runout)

1. Place the crankshaft on a set of V blocks.

2. Mount a dial indicator and base on the surface

plate. Position the indicator contact at point 1 of

the crankshaft.

ATV-1074

3. Zero the indicator and rotate the crankshaft

slowly.

4. Maximum runout must not exceed specifica-

tions.

NOTE: Proceed to check runout on the other end

of the crankshaft by positioning the indicator con

tact at point 2 and following steps 2-4.

Measuring Crankshaft

(Web-to-Web)

1. Using a calipers, measure the distance from the

outside edge of one web to the outside edge of

the other web.

ATV-1017

2. Acceptable width range must be within specifi-

cations.

COUNTERSHAFT

Disassembling

1. Remove the reverse driven gear dog; then

remove the circlip securing the reverse driven

gear.

2. Remove the reverse driven gear and account for

the washer, bushing, and bearing.

3. Remove the low driven gear washer; then

remove the low driven gear. Account for the

bushing and bearing.

4. Remove the washer; then remove the circlip

securing the sliding dog. Remove the sliding

dog.

5. Remove the high driven gear circlip; then

remove the high driven gear. Account for the

washer, bushing, and bearing.

! CAUTION

Care should be taken to support the connecting rod

when rotating the crankshaft.

! CAUTION

When disassembling the countershaft, care must be

taken to note the direction each major component

(dog, gear) faces. If a major component is installed

facing the wrong direction, transmission damage

may occur and/or the transmission will malfunction.

In either case, complete disassembly and assembly

will be required.

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Assembling

737-053A

1. Place the high driven gear onto the countershaft

making sure the bearing, bushing, and washer

are properly positioned. Secure with the circlip.

2. Place the sliding dog onto the countershaft; then

secure with the circlip. Place the washer next to

the circlip.

3. Place the low driven gear onto the countershaft

making sure the bearing and bushing are prop-

erly positioned; then place the washer onto the

shaft.

4. Place the reverse driven gear onto the counter-

shaft making sure the bearing, bushing, and

washer are properly positioned; then secure with

the circlip.

5. Place the reverse driven gear dog onto the coun-

tershaft; then secure with the circlip.

NOTE: The countershaft is now completely

assembled for installation.

CRANK BALANCER DRIVEN GEAR

737-050A

Disassembling

1. Remove the small and large washers from the

balancer shaft.

2. Note the position of the alignment marks for

assembling purposes; then remove driven gear

#1 with driven gear #2. Account for pins and

springs.

3. Remove driven gear #2 from gear #1; then

account for a large washer and a key.

Inspecting

1. Inspect the gear, pins, and keyway for wear.

2. Inspect the springs for damage or fatigue.

Assembling

1. Place driven gear #2 into driven gear #1; then

align the alignment marks of driven gear #1 and

driven gear #2.

2. Using a pair of needle-nose pliers, insert each

spring part way into the slot; then install a pin

and push the spring/pin assembly into the slot.

3. Place the key and the large washer into position

on the balancer shaft.

4. Place the driven gear #1 assembly onto the bal-

ancer shaft; then place the large and small wash-

ers onto the shaft.

NOTE: The crank balancer/driven gear assembly

is now completely assembled for installation.

Assembling Crankcase

Half

NOTE: For ease of assembly, install components

on the right-side crankcase half.

NOTE: If the output shaft was removed, make

sure that the proper shim is installed.

1. Install the output shaft into the crankcase mak-

ing sure the two gears, shim, washer, and nut are

in the correct order.

KEY

1. Reverse Driven Gear Dog

2. Reverse Driven Gear

3. Circlip

4. Bearing

5. Countershaft

6. Low Driven Gear

7. Bushing

8. High Driven Gear

9. Sliding Dog

10. Lock Washer

11. Lock Washer

KEY

1. Balancer Shaft

2. Washer

3. Driven Gear #1

4. Driven Gear #2

5. Spring

6. Key

7. Pin

8. Washer

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MD1199

MD1079

2. Apply red Loctite #271 to the threads of the out-

put shaft. Install and tighten the nut specifica-

tions. Using a punch, peen the nut.

MD1333

3. Apply a liberal amount of oil to the crankshaft

bearing. Using a propane torch, heat the bearing

until the oil begins to smoke; then slide the

crankshaft assembly into place.

MD1334

NOTE: If heating the bearing is not possible, the

crankshaft can be installed using a crankshaft

installer.

4. Rotate the crankshaft so the counterweight is

toward the rear of the engine. Install the counter-

balance shaft.

MD1024

5. Keeping the counterbalance gear timing mark

aligned with the one on the crankshaft gear,

install the key and the counterbalance gear.

CC166D

6. Keeping the two holes facing up, install the shift

cam and inner and outer washers.

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MD1329

7. Align the inner shift fork with the gear cluster

and with the inner washer in place, install the

gear cluster and inner shift fork. While holding

the gear cluster in place, install the washer, gear,

and snap ring.

MD1032

MD1198

8. Install the outer shift fork and the shift fork

shaft.

MD1327

9. Install the input driveshaft.

MD1326

CC870

10. Install the washer, spacer, sleeve, reverse idler

gear, and washer.

MD1357

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3

11. Install the secondary and primary driveshaft

assemblies. Account for the bearing alignment

C-ring on the bearing boss next to the pinion

gear.

NOTE: Align the bearing alignment pin on the

secondary output shaft.

MD1316

Joining Crankcase

Halves

1. Verify that the two alignment pins are in place

and that both case halves are clean and grease

free. Apply Three Bond Sealant to the mating

surfaces. Place the right-side half onto the

left-side half.

MD1336

2. Using a plastic mallet, lightly tap the case halves

together until cap screws can be installed.

3. From the right side, install the crankcase cap

screws noting the location of the different-sized

cap screws; then tighten only until snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs while tighten-

ing the cap screws.

MD1008

4. From the left side, install the remaining crank-

case cap screws; then tighten only until snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs while tighten-

ing the cap screws.

CC871

5. In a crisscross/case-to-case pattern, tighten the 8

mm cap screws until the halves are correctly

joined; then tighten to specifications.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

6. In a crisscross/case-to-case pattern, tighten the 6

mm cap screws to specifications.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

AT THIS POINT

After completing center crankcase components,

proceed to Installing Right-Side Components, to

Installing Left-Side Components, and to Installing

Top-Side Components.

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Installing Right-Side

Components

A. Oil Strainer/Oil Pump

1. Place the oil strainer and new O-ring into posi-

tion beneath the crankcase. Tighten the Phil-

lips-head screws (coated with red Loctite #271)

securely.

MD1337

2. Noting the directional arrow from removing,

place the strainer cover into position on the

crankcase making sure the O-ring is properly

installed and secure with the four cap screws;

then tighten the oil drain plug to specifications.

MD1208

3. Place two alignment pins and the oil pump into

position on the crankcase and secure with the

Phillips-head screws coated with blue Loctite

#243. Tighten to specifications.

MD1060

4. Place the pin into position on the oil pump shaft,

install the oil pump driven gear making sure the

recessed side of the gear is directed inward, and

secure with a new snap ring.

NOTE: Always use a new snap ring when install-

ing the oil pump driven gear.

MD1020

MD1019

5. Install the cam chain.

NOTE: Keep tension on the cam chain to avoid

damaging the crankcase boss.

6. Place the pin into position, install the oil pump

drive gear, and tighten the cap screw (coated

with red Loctite #271) securely.

! CAUTION

The legs of the strainer must be directed out.

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3

MD1017

MD1018

7. Install the clutch shoe assembly on the crank-

shaft; then install the flange nut (left-hand

thread). Tighten to specifications.

NOTE: The flat side of the flange nut should be

directed towards the clutch shoe.

8. Install the one-way sprag clutch making sure

that the green dot or the stamp tag OUTSIDE is

directed away from the crankcase.

MD1286

9. Install gear position indicator switch contact

pins and springs into the end of the shift shaft.

MD1043

10. Install gear position indicator switch making

sure the O-ring is well-oiled and properly posi-

tioned. Tighten cap screws securely.

MD1040

B. Clutch Cover

C. Fixed Drive Face

D. Movable Drive Face

NOTE: Steps 1-10 in the preceding sub-section

must precede this procedure.

11. Install two alignment pins and place the clutch

cover gasket into position. Install the clutch

cover.

MD1115

12. Tighten the clutch cover cap screws to specifica-

tions.

! CAUTION

Care must be taken when installing the flange nut;

it has “left-hand” threads.

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MD1117

13. Install the air intake plate. Apply red Loctite

#271 to the threads of the three Phillips-head

cap screws; then install and tighten securely.

MD1342

14. Place the driven pulley assembly into position

and secure with the nut (threads coated with red

Loctite #271). Tighten to specifications.

MD1068

MD1339

15. Slide the fixed drive face assembly onto the

front shaft.

16. Spread the faces of the driven pulley by pushing

the inner face toward the engine while turning it

counterclockwise; then when the faces are sepa-

rated, insert a wedge (approximately 3/8 in.

thick) between the faces. Release the inner face.

MD1340

17. Place the V-belt into position on the driven pul-

ley and over the front shaft.

MD1341

NOTE: The arrows on the V-belt should point for-

ward.

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3

18. Making sure the eight movable drive face rollers

are in position, pinch the V-belt together near its

center and slide the spacer and movable drive

face onto the shaft. Coat the threads of the nut

with red Loctite #271 and secure the movable

drive face. Tighten the nut to specifications.

MD1338

MD1033

NOTE: At this point, the wedge can be removed

from between the driven pulley faces.

19. Rotate the V-belt and drive/driven assemblies

until the Vbelt is flush with the top of the driven

pulley.

20. Install two alignment pins and place the V-belt

cover gasket into position on the clutch cover.

Install the V-belt cover noting the position of the

long cap screws and rubber washer and two wire

forms. In a crisscross pattern, tighten cap screws

to specifications.

MD1306

Installing Left-Side

Components

A. Starter Idler Gears

B. Rotor/Flywheel

1. Place the crankshaft bearing retainer into posi-

tion. Apply red Loctite #271 to the three Phil-

lips-head screws. Install and tighten the three

Phillips-head screws securely.

MD1122

2. Install the starter motor and tighten the two cap

screws securely.

3. Install the driveshaft spacer making sure the

stepped side is to the inside.

MD1224

4. Install the shift detent cam making sure the

spacer is properly positioned.

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MD1086

5. Install the cam stopper assembly.

6. Install the gear shift shaft assembly and washer

making sure to align the alignment marks.

MD1239

7. Install starter idler gear (No. 1) and starter idler

gear (No. 2).

MD1305

8. Place the key into its notch; then slide the rotor/

flywheel (with the ring gear in place) over the

crankshaft. Tighten the nut to specifications.

C. Cover

D. Recoil Starter

NOTE: Steps 1-8 in the preceding sub-section

must precede this procedure.

9. Install two alignment pins and place the left-side

cover gasket into position. Install the left-side

cover. Noting the different-lengthed 6 mm cap

screws, the position of the shifter bracket, and

the location of the long cap screw with the

washer, tighten cap screws only until snug.

MD1186

10. Install the starter cup making sure that the

O-ring is in place inside the starter cup. Tighten

the nut w/lock washer to specifications.

MD1304

MD1303

11. Tighten the cap screws (from step 9) in a criss-

cross pattern to specifications.

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3

12. Place the gasket, recoil starter assembly, and

cover into position on the left-side cover making

sure the single washer is properly positioned;

then install and tighten the four cap screws to

specifications.

Installing Top-Side

Components

A. Piston

B. Cylinder

NOTE: If the piston rings were removed, install

them in this sequence.

A. Install ring expander (4) in the bottom groove

of the piston; then install the thin oil rings (3)

over the expander making sure the expander

ends do not overlap. Stagger the end gaps of

the upper and lower thin oil rings according

to the illustration.

ATV-1085B

NOTE: Note the direction of the exhaust side of

the piston (5) for correct ring end gap orientation.

B. Install the compression rings (1 and 2) so the

letter on the top surface of each ring faces the

dome of the piston. Rotate the rings until the

ring end gaps are on directly opposite sides of

the piston according to the illustration.

NOTE: The chrome (silver) ring should be

installed in the top position.

MD1343

1. Install the piston on the connecting rod making

sure there is a circlip on each side and the open

end of the circlip is directed upwards or down-

wards.

NOTE: The piston should be installed so the

arrow points towards the exhaust.

MD1213

2. Place the two alignment pins into position. Place

the cylinder gasket into position; then place a

piston holder (or suitable substitute) beneath the

piston skirt and square the piston in respect to

the crankcase.

MD1344

! CAUTION

Incorrect installation of the piston rings will result in

engine damage.

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3. Lubricate the inside wall of the cylinder; then

using a ring compressor or the fingers, compress

the rings and slide the cylinder over the piston.

Route the cam chain up through the cylinder

cam chain housing; then remove the piston

holder and seat the cylinder firmly on the crank-

case.

MD1345

4. Loosely install the two nuts with washers which

secure the cylinder to the right-side crankcase

half.

NOTE: The two cylinder-to-crankcase nuts will

be tightened in step 9.

MD1226A

C. Cylinder Head

D. Valve Cover

NOTE: Steps 1-4 in the preceding sub-section

must precede this procedure.

5. While keeping tension on the cam chain, place

the front cam chain guide into the cylinder.

MD1349

6. Place the head gasket into position on the cylin-

der. Place the alignment pins into position; then

place the head assembly into position on the cyl-

inder making sure the cam chain is routed

through the chain cavity.

MD1347

! CAUTION

The cylinder should slide on easily. Do not force the

cylinder or damage to the piston, rings, cylinder, or

crankshaft assembly may occur.

! CAUTION

Care should be taken that the bottom of the chain

guide is secured in the crankcase boss.

! CAUTION

Keep tension on the cam chain to avoid damaging

the crankcase boss.

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3

MD1163

7. Install the four cylinder head cap screws with

washers. Note that the two cap screws on the

right side of the cylinder head nearest the cam

sprocket are longer than the two cap screws on

the left (spark plug) side. Tighten only until

snug.

MD1270

8. Install the two lower nuts securing the cylinder

head to the cylinder, one in front and one in rear.

MD1192

9. In a crisscross pattern, tighten the four cylinder

head cap screws (from step 7) to specifications.

Tighten the two lower cylinder head nuts (from

step 8) to specifications and the cylin-

der-to-crankcase nuts (from step 4) to specifica-

tions.

10. With the timing inspection plug removed and

the cam chain held tight, rotate the crankshaft

until the piston is at top-dead-center.

11. While holding the cam chain sprocket to the

side, install the rear cam chain tensioner guide

into the cylinder head. Install the pivot cap

screw and washer.

CD383

12. With the alignment pin installed in the camshaft

and the cam lobes directed down (toward the

piston), place the camshaft in position and verify

that the timing mark on the magneto is visible

through the inspection plug and that the timing

marks on the camshaft sprocket are parallel with

the valve cover mating surface.

NOTE: When the camshaft assembly is seated,

make sure the alignment pin in the camshaft aligns

with the smallest hole in the sprocket.

13. With the alignment pin installed in the camshaft,

loosely place the cam sprocket (with the

recessed side facing the camshaft lobes) onto the

camshaft and place it into position with the cam

chain over the sprocket.

MD1359

14. Place the C-ring into position in its groove in the

cylinder head.

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MD1131

NOTE: At this point, oil the camshaft bearings,

cam lobes, and the three seating journals on the

cylinder.

NOTE: Note the position of the alignment marks

on the end of the camshaft. They must be parallel

with the valve cover mating surface. If rotating the

camshaft is necessary for alignment, do not allow

the chain and sprocket to rotate and be sure the

cam lobes end up in the down position.

15. When the camshaft assembly is seated, ensure

the following.

A. Piston still at top-dead-center.

B. Camshaft lobes directed down (toward the

piston).

C. Camshaft alignment marks parallel to the

valve cover mating surface.

D. Recessed side of the sprocket directed toward

the cam lobes.

E. Camshaft alignment pin and sprocket align-

ment hole (smallest) are aligned.

16. Place the tab washer onto the sprocket making

sure it covers the pin in the alignment hole.

MD1363

17. Apply red Loctite #271 to the first cap screw

securing the sprocket and tab washer to the cam-

shaft; then install the cap screw and tab washer.

Tighten cap screw only until snug.

CC404D

MD1137

18. Rotate the crankshaft until the second cap screw

securing the sprocket to the camshaft can be

installed; then install the cap screw (threads

coated with red Loctite #271). Tighten to speci-

fications; then bend the tab to secure the cap

screw.

! CAUTION

If any of the above factors are not as stated, go back

to step 13 and carefully proceed.

! CAUTION

Care must be taken that the tab washer is installed

correctly to cover the alignment hole on the

sprocket. If the alignment pin falls out, severe

engine damage will result.

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3

MD1137

19. Rotate the crankshaft until the first cap screw

(from step 17) securing the sprocket to the cam-

shaft can be addressed; then tighten to specifica-

tions. Bend the tab to secure the cap screw.

20. Install the cylinder head plug with the cupped

end facing the camshaft and the opening

directed downwards.

21. Remove the cap screw from the end of the chain

tensioner. Account for the plunger, spring, and

O-ring.

MD1248

22. Depress the spring-loaded lock and push the

plunger into the tensioner.

MD1146

23. Place the cam chain tensioner assembly and gas-

ket into the cylinder making sure the ratchet side

is facing toward the top of the cylinder and

secure with the two Allen-head screws.

MD1254

24. Install the cap screw and spring into the end of

the cam chain tensioner. Tighten securely.

MD1245

25. Loosen the adjuster screw jam nuts; then loosen

the adjuster screws on the rocker arms in the

valve cover.

26. Apply a thin coat of Three Bond Sealant to the

mating surface of the valve cover; then place the

valve cover into position. Note that the two

alignment pins are properly positioned.

NOTE: At this point, the rocker arms and

adjuster screws must not have pressure on them.

27. Install the four top-side cap screws with rubber

washers; then install the remaining cap screws.

Tighten only until snug.

MD1261

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28. In a crisscross pattern starting from the center

and working outward, tighten the cap screws

(from step 27) to specifications.

29. Adjust valve/tappet clearance using the follow-

ing procedure.

NOTE: Use Valve Clearance Adjuster (p/n

0444-078) for this procedure.

A. Turn the engine over until the piston reaches

top-dead-center on the compression stroke.

B. Place the valve adjuster onto the jam nut

securing the tappet adjuster screw; then rotate

the valve adjuster dial clockwise until the end

is seated in the tappet adjuster screw.

C. While holding the valve adjuster dial in

place, use the valve adjuster handle and

loosen the jam nut; then rotate the tappet

adjuster screw clockwise until friction is felt.

CD001

D. Align the valve adjuster handle with one of

the marks on the valve adjuster dial.

E. While holding the valve adjuster handle in

place, rotate the valve adjuster dial counter-

clockwise until specified valve/tappet clear-

ance is attained.

NOTE: Rotating the valve adjuster dial counter-

clockwise will open the valve/tappet clearance by

0.05 mm (0.002 in.) per mark.

F. While holding the adjuster dial at the proper

clearance setting, tighten the jam nut securely

with the valve adjuster handle.

30. Place the two tappet covers with O-rings into

position; then install and tighten the cap screws

securely.

MD1264

31. Install the spark plug and tighten to specifica-

tions; then install the timing inspection plug.

Installing

Engine/Transmission

NOTE: Arctic Cat recommends that new gaskets

and O-rings be installed whenever servicing the

ATV.

1. From the left side, place the engine/transmission

into the frame; then slide the engine rearward as

far as possible.

2. Slightly raise the rear of the engine and engage

the front drive coupler into the splines of the

front drive output yoke; then slide the engine

forward as far as possible.

CD818

3. Raise the rear of the engine and place a block

beneath it; then install the propeller shaft and

output flange into the rear drive coupler.

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3

CD821

4. Remove the block from beneath the engine; then

align the rear drive flanges and secure with four

cap screws. Tighten to specifications.

CD824

5. Install two engine mounting through-bolts, two

bushings, and two washers; then tighten the

through-bolt flange nuts to specifications.

CD809

6. Secure the exhaust pipe to the engine with two

cap screws; then install the muffler and the

exhaust springs.

CC941

CF138A

7. Install the cooling ducts with clamps and tighten

the clamps securely.

CD515

CD793

8. Secure the engine ground wire to the engine

with a cap screw. Tighten to specifications.

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CD810

9. Connect the gear position indicator connector

(A), stator connector (B), and the CDI connector

(C) to the main wiring harness.

CD797A

10. Connect the temperature sensor leads to the

main wiring harness.

11. Secure the wires to the frame with nylon ties.

12. Connect the speed sensor lead to the wiring har-

ness.

13. Secure the positive cable to the starter motor.

14. Secure all wiring to the frame and upper engine

bracket with cable ties.

15. Secure the two oil hoses to the engine.

16. Secure the crankcase vent hose to the air cleaner

housing; then secure the inlet boot and carbure-

tor to the air cleaner housing.

CD787

CD785

CD793

17. Secure the shift rod to the engine with a new

E-clip.

CD774

18. Install the front and rear body panels; then install

the front and rear racks (see Section 8).

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3

19. Install the left-side foot peg to the footrest.

Tighten securely.

CD782

20. Connect the hose to the fuel pump; then connect

the vacuum hose and secure with hose clamps.

CD766A

21. Place the storage compartment into position;

then install the reinstallable rivets.

22. Place the battery into position in the battery

compartment; then install the battery cables and

vent hose. Secure with the battery cover.

23. Add proper amounts of engine/transmission oil.

24. Install the seat.

! CAUTION

Battery acid is harmful if it contacts eyes, skin, or

clothing. Care must be taken whenever handling a

battery.

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3-130

Table of Contents

(500 — Automatic Transmission/

650 H1)

Removing Engine/Transmission ……………………. 3-130

Top-Side Components……………….…………….…… 3-134

Removing Top-Side Components …….……………. 3-134

Left-Side Components ……………………….………… 3-138

Removing Left-Side Components ….……………. 3-138

Right-Side Components …………….………….……… 3-141

Removing Right-Side Components…..……………. 3-141

Center Crankcase Components ……………………. 3-145

Separating Crankcase Halves………….……………. 3-145

Disassembling Crankcase Half ……………………… 3-145

Servicing Components………..……………..………… 3-147

Assembling Crankcase Half ………………..………… 3-166

Joining Crankcase Halves……………….…………. 3-168

Installing Right-Side Components…….……………. 3-169

Installing Left-Side Components …………….……… 3-172

Installing Top-Side Components …………………. 3-175

Installing Engine/Transmission…………….………… 3-181

Removing Engine/

Transmission

Many service procedures can be performed without

removing the engine/transmission from the frame.

Closely observe the note introducing each sub-sec-

tion for this important information.

Secure the ATV on a support stand to elevate the

wheels.

1. Remove the seat.

2. Remove the negative cable from the battery;

then remove the positive cable. Remove the bat-

tery and the battery vent hose; then remove the

battery.

3. Remove the radiator access cover, steering post

cover, and storage compartment cover assem-

bly; then remove the storage compartment box.

4. Remove the reinstallable rivets securing the side

panels; then remove the panels.

CD683A

5. Remove the instrument pod; then remove the

front rack and front body panel (see Section 8).

6. Drain the oil from beneath the engine/transmis-

sion; then drain the coolant.

733-441A

CD799A

7. Remove the air filter (see Section 2).

AT THIS POINT

If the technician’s objective is to service/replace

left-side cover oil seals (3), front output joint oil

seal (1), rear output joint oil seal (1), and/or the oil

strainer (from beneath the engine/transmission),

the engine/transmission does not have to be

removed from the frame.

! WARNING

Make sure the ATV is solidly supported on the sup-

port stand to avoid injury.

! CAUTION

Battery acid is harmful if it contacts eyes, skin, or

clothing. Care must be taken whenever handling a

battery.

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3-131

3

8. Remove the vacuum hose and the fuel-pump-

to-carburetor hose.

CD766A

9. Loosen the clamp securing the air intake duct to

the air filter housing.

CD785

10. Disconnect the crankcase vent hose from the air

filter housing. Remove the clamp securing the

carburetor intake duct to the air filter housing;

then remove the air filter housing.

CD787

CD786

11. Remove the clamp securing the cooling duct boot

to the V-belt housing; then remove the cooling

duct boot from the V-belt housing outlet.

CD793

CD515A

12. Remove the left-side foot peg and footwell (see

Section 8).

CD782

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3-132

13. Secure the carburetor assembly up and away

from the engine.

14. Remove the E-clip securing the shift rod to the

engine shift arm; then allow the shift rod to

swing forward and hang straight down from the

shift lever.

CD774

15. Remove the springs securing the muffler to the

exhaust pipe; then remove the muffler. Account

for the two exhaust springs.

CF138A

16. Remove the two cap screws securing the

exhaust pipe to the cylinder head; then remove

the pipe.

CD803

17. Remove the two coolant hoses from the engine;

then route the hoses out of the way.

18. Remove the cap screws securing the rear drive-

shaft/output flange to the rear output joint

flange.

CD805

NOTE: It is advisable to lock the brake when

loosening the cap screws securing the rear drive-

shaft.

19. Remove the positive cable from the starter

motor and route it out of the way.

CD796

20. Disconnect the speed sensor connector from the

sensor housing.

CD794

21. On the right-side, disconnect the gear position

indicator connector (A), stator connector (B),

and the CDI connector (C).

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CD797A

22. Disconnect the temperature sensor lead from the

wiring harness.

CD788

23. Remove the spark plug wire from the spark

plug; then remove the coil from the frame.

CD814

24. Remove the cap screw securing the engine

ground wire to the engine.

CD810

25. Remove the two engine mounting through-bolts.

Account for a washer and a spacer on the bolts.

CD809

26. Raise the rear of the engine enough to allow the

rear output flange to clear the output flange

joint. Block the engine up in this position.

CD811

27. Remove the first small boot clamp; then remove

the output flange and driveshaft from the rear

drive coupler.

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CD812A

CD813

28. Remove the block from under the engine and

lower the engine; then remove the boot clamp

from the front output drive yoke.

CD818

29. Move the engine to the rear enough to allow the

front driveshaft to clear the front output yoke;

then move the engine forward and to the left.

The engine will come out the left side of the

frame.

CD773

Top-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to removed from the frame for this procedure.

Removing Top-Side

Components

A. Valve Cover

B. Cylinder Head

NOTE: Remove the spark plug and timing

inspection plug; then using the recoil starter,

rotate the crankshaft to top-dead-center of the

compression stroke.

1. Remove the two tappet covers.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

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3

CC001D

NOTE: Keep the mounting hardware with the

covers for assembly purposes or thread them back

into the head to keep them separated.

2. Remove the 12 cap screws securing the valve

cover to the head; account for the four rubber

washers on the top side cap screws. Remove the

valve cover. Account for and note the orienta-

tion of the cylinder head plug. Note the location

of two alignment pins.

CD205

CD206

CD211A

3. Loosen the cap screw on the end of the ten-

sioner; then remove the two Allen-head cap

screws securing the tensioner adjuster assembly

and remove the assembly. Account for a gasket.

CC009D

4. Using an awl, rotate the C-ring in its groove

until it is out of the cylinder head; then remove

the C-ring.

NOTE: Care should be taken not to drop the

C-ring down into the crankcase.

CC012D

5. Bend the washer tabs down and remove the two

cap screws securing the sprocket to the cam-

shaft; then drop the sprocket off the camshaft.

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CC013D

6. Remove the cap screw securing the chain ten-

sioner (account for a washer); then remove the

tensioner.

CC014D

7. While holding the chain, slide the sprocket and

camshaft out of the cylinder head.

CC266D

NOTE: Loop the chain over the cylinder and

secure it to keep it from falling into the crankcase.

8. Remove the five nuts securing the cylinder head

to the cylinder; then remove the four cylinder

head cap screws with copper washers (note loca-

tion of the different-sized cap screws and nuts).

CC017D

CC018D

CC016D

9. Remove the cylinder head from the cylinder,

remove the gasket, and account for two align-

ment pins; then remove the cam chain guide.

CC020D

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3

CC022D

C. Cylinder

D. Piston

NOTE: Steps 1-9 in the preceding sub-section

must precede this procedure.

10. Loosen the clamp securing the coolant hose to

the union; then detach the hose.

11. Remove the two nuts securing the cylinder to

the crankcase.

CC023D

12. Lift the cylinder off the crankcase taking care

not to allow the piston to drop against the crank-

case. Account for the gasket and two alignment

pins.

CC024D

CC025D

CC026D

13. Using an awl, remove one piston-pin circlip.

AT THIS POINT

To service valves and cylinder head, see

Servicing Top-Side Components sub-section.

AT THIS POINT

To inspect cam chain guide, see Servicing

Top-Side Components sub-section.

AT THIS POINT

To service cylinder, see Servicing Top-Side

Components sub-section.

! CAUTION

When removing the cylinder, be sure to support the

piston to prevent damage to the crankcase and pis-

ton.

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CC032D

14. Using the Piston Pin Puller (p/n 0644-328),

remove the piston pin. Account for the oppo-

site-side circlip. Remove the piston.

NOTE: It is advisable to remove the oppo-

site-side circlip prior to using the puller.

CC033D

NOTE: Support the connecting rod with rubber

bands to avoid damaging the rod or install the

Connecting Rod Holder (p/n 0444-006).

NOTE: If the existing rings will not be replaced

with new rings, note the location of each ring for

proper installation. When replacing with new rings,

replace as a complete set only. If the piston rings

must be removed, remove them in this sequence.

A. Starting with the top ring, slide one end of the

ring out of the ring-groove.

B. Remove each ring by working it toward the dome

of the piston while rotating it out of the groove.

Left-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to be removed from the frame for this procedure.

Removing Left-Side

Components

A. Recoil Starter/Outer Magneto

Cover

B. Water Pump

C. Cover

D. Rotor/Flywheel

NOTE: The 500 and certain 650 H1 models are

equipped with a recoil starter.

1. Remove the four cap screws securing the recoil

starter/outer magneto cover to the left-side

cover; then remove the recoil starter/outer mag-

neto cover. Account for the gasket.

2. Remove the flange nut securing the starter

cup/spacer to the crankshaft; then remove the

starter cup/spacer. Account for the O-ring inside

the cup.

! CAUTION

Do not allow the connecting rod to go down inside the

crankcase. If the rod is down inside the crankcase and

the crankshaft is rotated, severe damage will result.

AT THIS POINT

To service piston, see Servicing Top-Side

Components sub-section.

AT THIS POINT

To service center crankcase components only,

proceed to Removing Left-Side Components.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

AT THIS POINT

To service the recoil starter, see Servicing Left-Side

Components sub-section.

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3

CD925A

3. Using a cold chisel, scribe a mark showing the

relative position of the shift arm to the shift arm

shaft to aid in installing; then remove the shift

arm.

FI085A

4. Remove the two cap screws securing the speed

sensor housing; then remove the housing.

Account for the gasket and two seal washers.

CD920A

5. Loosen the clamps securing the coolant hose to

the water pump; then remove the crossover tube

from the cylinder head. Account for an O-ring.

CD214

6. Remove the two cap screws securing the water

pump to the engine; then remove the water

pump.

7. Remove the cap screws securing the left-side

cover to the crankcase noting the location of the

different-sized cap screws for installing pur-

poses.

8. Using Side Case Puller (p/n 0644-262), remove

the side cover. Account for a gasket and two

alignment pins.

NOTE: Inspect the inside of the left-side cover

for any shaft washers that may have come off with

the cover. Make sure they are returned to their

respective shafts and that the starter idler gear

spacer is on the shaft or in the cover.

CF075A

9. Remove the nut securing the magneto rotor to

the crankshaft; then install the magneto rotor

puller adapter.

NOTE: The puller has left-hand threads.

10. Using Magneto Rotor Remover Set (p/n

0444-075), remove the rotor/flywheel assembly

from the crankshaft. Account for the key; then

remove the starter clutch gear assembly and

washer.

AT THIS POINT

To service the water pump, see Section 4.

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CD939A

CD940A

11. Remove the two starter gears from the crankcase

noting the direction of the beveled side of the

gears for installing purposes; then remove the

two starter gear shafts.

CD136

CD140

12. Remove the snap ring securing the water pump

drive gear; then remove the gear noting the

direction of the sides of the gear for installing

purposes. Account for the drive gear alignment

pin.

CD944

13. Remove the snap ring securing the water pump

driven gear; then remove the gear noting the

direction of the sides of the gear for installing

purposes. Account for the driven gear alignment

pin.

CD952A

NOTE: There is an oil passage beneath the

driven gear/drive gear assembly. This passage

should be plugged prior to removing the driven

gear and drive gear. Failure to do so could result in

the loss of an alignment pin into the crankcase.

AT THIS POINT

To service the magneto assembly, see Section 5.

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3-141

3

14. Remove the shift shaft noting the timing marks

for assembling purposes. Account for two wash-

ers.

FI302

PR430A

15. Remove the gear shift cam plate; then remove

the cam stopper and cam stopper spring.

Account for two washers.

PR434A

Right-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to be removed from the frame for this procedure.

Removing Right-Side

Components

A. V-Belt Cover

B. Driven Pulley

C. Clutch Cover

1. Remove the cap screws securing the V-belt

cover noting the location of the differ-

ent-lengthed cap screws for installing purposes;

then using a rubber mallet, gently tap on the

cover tabs to loosen the cover.

CD079

2. Remove the nut securing the movable drive

face; then remove the face. Account for a spacer.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

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CD963

CD966A

3. Remove the V-belt.

4. Remove the nut securing the fixed driven

assembly; then remove the assembly.

PR388

5. Remove the fixed drive face.

6. Using an impact driver, remove the cap screws

securing the air intake plate; then remove the

plate cushion.

PR393

7. Remove the cap screws securing the clutch

cover. Note the location of the differ-

ent-lengthed cap screws for installing purposes.

Using a rubber mallet, carefully remove the

cover. Account for two alignment pins.

CD973A

CD974A

NOTE: For steps 8-14, refer to illustration

CC829B.

NOTE: To aid in installing, it is recommended that

the assemblies are kept together and IN ORDER.

! CAUTION

Care must be taken when removing the cover so the

cover gasket is not damaged.

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3

CC829B

8. Remove the one-way clutch (D) from the clutch

housing. Note the location of the green align-

ment dot (or the word OUTSIDE) for installing

purposes.

9. Using a hydraulic press, remove the clutch hous-

ing assembly from the clutch cover. Account for

the left fixed drive spacer and an O-ring inside

the fixed drive spacer.

CF085

CC596

NOTE: Account for and inspect the clutch hous-

ing seal.

CF088A

10. Remove the two Allen-head screws securing the

shift indicator sensor; then remove the sensor.

Account for two neutral contact pins and two

springs.

CD997

11. Remove the nut (left-hand threads) securing the

clutch shoe assembly (C). Account for a washer.

FI279A

NOTE: The washer is also directional. The flat

side of the washer must face toward the centrifu-

gal clutch assembly when installing.

KEY

A. Oil Pump Driven Gear

B. Oil Pump Drive Gear

C. Clutch Shoe Assembly

D. One-Way Clutch

(Green Dot MUST Show)

E. Final Drive Carrier Bearing

Housing

F. Input Shaft

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3-144

FI336A

12. Remove the cap screw securing the oil pump

drive gear (B). Account for a cap screw, washer,

pin, and spacer.

CC606

CD987

CD993

13. Using an impact driver, remove the Allen-head

screws securing the final drive carrier bearing

housing (E); then remove the housing and

account for two alignment pins.

CD999

14. Remove the snap ring securing the oil pump

driven gear (A); then remove the gear noting the

direction of the sides of the gear for installing

purposes. Account for a pin and a washer.

CD984

CD895A

15. Using an impact driver, remove the three Phil-

lips-head screws securing the oil pump; then

remove the pump.

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3-145

3

CD988

Center Crankcase

Components

NOTE: This procedure cannot be done with the

engine/transmission in the frame. Complete

Removing procedures for Top-Side, Left-Side, and

Right-Side must precede this procedure.

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

Separating Crankcase

Halves

1. Remove the right-side cap screws securing the

crankcase halves. Note the location of the differ-

ent-lengthed cap screws.

2. Remove the left-side cap screws securing the

crankcase halves. Note the location of the differ-

ent-lengthed cap screws.

3. Using the Crankcase Separator/Crankshaft

Remover (p/n 0444-009) and tapping lightly

with a rubber mallet, separate the crankcase

halves. Account for two alignment pins.

NOTE: To keep the shaft/gear assemblies intact

for identification, tap the shafts toward the

left-side crankcase half when separating the

halves.

CC665

Disassembling

Crankcase Half

NOTE: For steps 1-7, refer to illustration CC821B.

CC821B

NOTE: To aid in installing, it is recommended

that the assemblies are kept together and IN

ORDER.

1. Remove the secondary driven shaft assembly

(A) noting the location of the bearing locating

pins. Account for the bearing C-ring.

KEY

A. Secondary Driven Shaft

Assembly

B. Crank Balancer Assembly

C. Crankshaft

D. Countershaft Assembly

E. Driveshaft

F. Reverse Idler Gear

Assembly

G. Gear Shift Shaft

H. Shift Shaft with 2 Forks

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CD267

2. Remove the reverse idler gear assembly (F).

Account for all washers, shaft, bushing, and the

gear.

CC668

3. Remove the shift shaft (H); then remove the two

forks taking note of the direction of the tabs on

the forks for assembling purposes.

4. Remove the gear shift shaft (G) noting the loca-

tion of the two holes on the end of the shaft.

Account for two washers.

PR380A

5. Remove the countershaft assembly (D). Account

for a washer on each end of the countershaft.

CC674

NOTE: Do not disassemble the countershaft

assembly unless necessary. If necessary, see Ser-

vicing Center Crankcase Components sub-sec-

tion.

6. Using a rubber mallet, tap on the crankcase to

remove the driveshaft.

CC675

7. Note the timing marks on the crank balancer

assembly (B) gear and crankshaft (C) gear for

assembling purposes; then slide the crank bal-

ancer gear off the crank balancer. Account for

the key in the keyway.

CD826

8. Remove the crank balancer.

NOTE: There is a flat spot on the crank balancer

bearing flange to allow clearance past the crank-

shaft.

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3

CD832B

9. Remove the snap ring securing the water pump

driven gear shaft.

10. Using a hydraulic press, remove the crankshaft

assembly.

NOTE: Use a protective end cap to prevent dam-

age to the crankshaft threads.

11. Remove the cap screws securing the oil strainer

cap; then remove the cap. Account for the cap

O-ring.

PR407

12. Remove the two cap screws securing the oil

strainer; then remove the strainer.

PR406

13. To remove the assembly, remove the nut secur-

ing the secondary drive gear and secondary

driven gear; then from the inside of the crank-

case using a rubber mallet, remove the output

shaft assembly. Account for the output shaft,

two gears, a shim, a washer, and the nut.

CC686

Table of Contents

(Servicing Components)

NOTE: Critical engine/transmission specifica-

tions are located at the beginning of this section.

Servicing Top-Side Components .………………….. 3-148

Valve Assembly ….…………….………….………….. 3-148

Piston Assembly ……………….…………….……….. 3-150

Cylinder/Cylinder Head Assembly………….……. 3-152

Servicing Left-Side Components ….…………….…. 3-156

Recoil Starter ….………….…………….…………….. 3-156

Servicing Right-Side Components ….…………….. 3-159

Inspecting Centrifugal Clutch Shoe ……….……. 3-159

Inspecting Clutch Housing …………….………….. 3-159

Inspecting Primary One-Way Drive ……….……. 3-159

Inspecting Oil Pump …….…………….…………….. 3-159

Driven Pulley Assembly ..……………….………….. 3-159

Servicing Center Crankcase Components ……… 3-163

Secondary Gears ………..…………….…………….. 3-163

Crankshaft Assembly …..…………….…………….. 3-164

Countershaft ………..……………..…………….……. 3-166

! CAUTION

Do not remove the remaining output shaft assembly

unless absolutely necessary. If the shaft is removed,

the shaft nut must be replaced with a new one and

the shaft must be re-shimmed.

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3-148

Servicing Top-Side

Components

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

VALVE ASSEMBLY

When servicing valve assembly, inspect valve seats,

valve stems, valve faces, and valve stem ends for

pits, burn marks, or other signs of abnormal wear.

NOTE: Whenever a valve is out of tolerance, it

must be replaced.

Cleaning/Inspecting Valve Cover

NOTE: If the valve cover cannot be trued, the cyl-

inder head assembly must be replaced.

1. Wash the valve cover in parts-cleaning solvent.

2. Place the valve cover on the Surface Plate (p/n

0644-016) covered with #400 grit wet-or-dry

sandpaper. Using light pressure, move the valve

cover in a figure eight motion. Inspect the seal-

ing surface for any indication of high spots. A

high spot can be noted by a bright metallic fin-

ish. Correct any high spots before assembly by

continuing to move the valve cover in a figure

eight motion until a uniform bright metallic fin-

ish is attained.

CC130D

Removing Valves

NOTE: Keep all valves and valve components as

a set. Note the original location of each valve set

for use during installation. Return each valve set to

its original location during installation.

1. Using a valve spring compressor, compress the

valve springs and remove the valve cotters.

Account for an upper spring retainer.

CC132D

2. Remove the valve seal and the lower remaining

spring seat. Discard the valve seal.

CC136D

NOTE: The valve seals must be replaced.

3. Remove the valve springs; then invert the cylin-

der head and remove the valves.

Measuring Valve Stem Runout

1. Support each valve stem end with the V Blocks

(p/n 0644-022); then check the valve stem

runout using a dial indicator.

! CAUTION

Do not remove an excessive amount of the sealing

surface or damage to the camshaft will result.

Always check camshaft clearance when resurfacing

the valve cover.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

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3-149

3

ATV-1082

2. Maximum runout must not exceed specifica-

tions.

Measuring Valve Stem

Outside Diameter

1. Using a micrometer, measure the valve stem

outside diameter.

2. Acceptable diameter range (intake valve) must

be within specifications.

3. Acceptable diameter range (exhaust valve) must

be within specifications.

Measuring Valve Face/Seat Width

1. Using a micrometer, measure the width of the

valve face.

ATV-1004

2. Acceptable width range must be within specifi-

cations.

Measuring Valve Face Radial

Runout

1. Mount a dial indicator on the surface plate; then

place the valve stem on a set of V blocks.

2. Position the dial indicator contact point on the

outside edge of the valve face; then zero the

indicator.

ATV1082A

3. Rotate the valve in the V blocks.

4. Maximum runout must not exceed specifications.

Measuring Valve Guide/Valve Stem

Deflection (Wobble Method)

1. Mount a dial indicator and base on the surface

plate; then place the cylinder head on the surface

plate.

2. Install the valve into the cylinder head; then posi-

tion the dial indicator contact point against the

outside edge of the valve face. Zero the indicator.

CC131D

3. Push the valve from side to side; then from top

to bottom.

4. Maximum “wobble” deflection must not exceed

specifications.

Measuring Valve Guide

(Inside Diameter)

1. Insert a snap gauge 1/2 way down into each

valve guide bore; then remove the gauge and

measure it with a micrometer.

2. Acceptable inside diameter range must be

within specifications.

3. If a valve guide is out of tolerance, it must be

replaced.

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3-150

Servicing Valves/Valve

Guides/Valve Seats

If valves, valve guides, or valve seats require servic-

ing or replacement, Arctic Cat recommends that the

components be taken to a qualified machine shop

for servicing.

Measuring Rocker Arm

(Inside Diameter)

1. Using a dial calipers, measure the inside diame-

ter of the rocker arm.

2. Acceptable inside diameter range must be

within specifications.

Measuring Rocker Arm Shaft

(Outside Diameter)

1. Using a micrometer, measure the outside diame-

ter of the rocker arm shaft.

2. Acceptable outside diameter range must be

within specifications.

Installing Valves

1. Apply grease to the inside surface of the valve

seals; then place a lower spring seat and valve

guide seal over each valve guide.

CC144D

2. Insert each valve into its original location.

3. Install the valve springs with the painted end of

the spring facing away from the cylinder head.

NOTE: If the paint is not visible, install the ends

of the springs with the closest wound coils toward

the head.

ATV-1011A

4. Place a spring retainer over the valve springs;

then using the valve spring compressor, com-

press the valve springs and install the valve cot-

ters.

CC132D

PISTON ASSEMBLY

NOTE: Whenever a piston, rings, or pin are out

of tolerance, they must be replaced.

Cleaning/Inspecting Piston

1. Using a non-metallic carbon removal tool,

remove any carbon buildup from the dome of

the piston.

2. Inspect the piston for cracks in the piston pin,

dome, and skirt areas.

3. Inspect the piston for seizure marks or scuffing.

Repair with #400 grit wet-or-dry sandpaper and

water or honing oil.

NOTE: If scuffing or seizure marks are too deep

to correct with the sandpaper, replace the piston.

4. Inspect the perimeter of each piston for signs of

excessive “blowby.” Excessive “blowby” indi-

cates worn piston rings or an out-of-round cylin-

der.

! CAUTION

If valves are discolored or pitted or if the seating

surface is worn, the valve must be replaced. Do not

attempt to grind the valves or severe engine damage

may occur.

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3-151

3

Removing Piston Rings

1. Starting with the top ring, slide one end of the

ring out of the ring-groove.

CC400D

2. Remove each ring by working it toward the

dome of the piston while rotating it out of the

groove.

NOTE: If the existing rings will not be replaced

with new ones, note the location of each ring for

proper installation. When installing new rings,

install as a complete set only.

Cleaning/Inspecting Piston Rings

1. Take an old piston ring and snap it into two

pieces; then grind the end of the old ring to a 45°

angle and to a sharp edge.

2. Using the sharpened ring as a tool, clean carbon

from the ring-grooves. Be sure to position the

ring with its tapered side up.

Measuring Piston-Ring End Gap

(Installed)

1. Place each compression ring in the wear portion

of the cylinder. Use the piston to position each

ring squarely in the cylinder.

2. Using a feeler gauge, measure each piston-ring

end gap. Acceptable ring end gap must be

within specifications.

CC280D

Measuring Piston Pin (Outside

Diameter) and Piston-Pin Bore

1. Measure the piston pin outside diameter at each

end and in the center. If measurement is not

within specifications, the piston pin must be

replaced.

ATV-1070

2. Insert an inside dial indicator into the piston-pin

bore. The diameter must not exceed specifica-

tions. Take two measurements to ensure accu-

racy.

ATV-1069

Measuring Piston Skirt/

Cylinder Clearance

1. Measure the cylinder front to back in six places.

! CAUTION

Improper cleaning of the ring-grooves by the use of

the wrong type of ring-groove cleaner will result in

severe damage to the piston.

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CC127D

2. Measure the corresponding piston diameter at a

point 15 mm (0.6 in.) above the piston skirt at a

right angle to the piston-pin bore. Subtract this

measurement from the measurement in step 1.

The difference (clearance) must be within speci-

fications.

Installing Piston Rings

1. Install ring expander (4) in the bottom groove of

the piston; then install the thin oil rings (3) over

the expander making sure the expander ends do

not overlap. Stagger the end gaps of the upper

and lower thin oil rings according to the illustra-

tion.

ATV-1085B

NOTE: Note the direction of the exhaust side of

the piston (5) for correct ring end gap orientation.

2. On the 500, install the compression rings (1 and

2) so the letter on the top surface of each ring

faces the dome of the piston. Rotate the rings

until the ring end gaps are on directly opposite

sides of the piston (see illustration).

NOTE: The chrome (silver) ring should be

installed in the top position.

726-306A

3. On the 650 H1, the ring with the orientation

mark (MTOP) should be installed in the second

(middle) groove and the ring with the orienta-

tion mark (M) should be installed in the first

(top) groove.

ATV-1024A

CYLINDER/CYLINDER HEAD

ASSEMBLY

NOTE: If the cylinder/cylinder head assembly

cannot be trued, they must be replaced.

Cleaning/Inspecting Cylinder Head

1. Using a non-metallic carbon removal tool,

remove any carbon buildup from the combus-

tion chamber being careful not to nick, scrape,

or damage the combustion chamber or the seal-

ing surface.

2. Inspect the spark plug hole for any damaged

threads. Repair damaged threads using a

“heli-coil” insert.

! CAUTION

Incorrect installation of the piston rings will result in

engine damage.

! CAUTION

The cylinder head studs must be removed for this

procedure.

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3-153

3

3. Place the cylinder head on the surface plate cov-

ered with #400 grit wet-or-dry sandpaper. Using

light pressure, move the cylinder head in a fig-

ure eight motion. Inspect the sealing surface for

any indication of high spots. A high spot can be

noted by a bright metallic finish. Correct any

high spots before assembly by continuing to

move the cylinder head in a figure eight motion

until a uniform bright metallic finish is attained.

CC128D

Measuring Cylinder Head

Distortion

1. Remove any carbon buildup in the combustion

chamber.

2. Lay a straightedge across the cylinder head; then

using a feeler gauge, check the distortion factor

between the head and the straightedge.

3. Maximum distortion must not exceed specifica-

tions.

CC141D

Cleaning/Inspecting Cylinder

1. Wash the cylinder in parts-cleaning solvent.

2. Inspect the cylinder for pitting, scoring, scuff-

ing, warpage, and corrosion. If marks are found,

repair the surface using a cylinder hone (see

Honing Cylinder in this sub-section).

3. Place the cylinder on the surface plate covered

with #400 grit wet-or-dry sandpaper. Using light

pressure, move the cylinder in a figure eight

motion. Inspect the sealing surface for any indi-

cation of high spots. A high spot can be noted by

a bright metallic finish. Correct any high spots

before assembly by continuing to move the cyl-

inder in a figure eight motion until a uniform

bright metallic finish is attained.

CC129D

Inspecting Cam Chain Guide

1. Inspect cam chain guide for cuts, tears, breaks,

or chips.

2. If the chain guide is damaged, it must be

replaced.

Honing Cylinder

1. Using a slide gauge and a dial indicator or a

snap gauge, measure the cylinder bore diameter

in three locations from top to bottom and again

from top to bottom at 90° from the first mea-

surements for a total of six measurements. The

trueness (out-of-roundness) is the difference

between the highest and lowest reading. Maxi-

mum trueness (out-of-roundness) must not

exceed specifications.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

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CC127D

2. Wash the cylinder in parts-cleaning solvent.

3. Inspect the cylinder for pitting, scoring, scuff-

ing, and corrosion. If marks are found, repair the

surface using a ball hone.

NOTE: To produce the proper 60° cross-hatch

pattern, use a low RPM drill (600 RPM) at the rate

of 30 strokes per minute. If honing oil is not avail-

able, use a lightweight petroleum-based oil. Thor-

oughly clean cylinder after honing using soap and

hot water. Dry with compressed air; then immedi-

ately apply oil to the cylinder bore. If the bore is

severely damaged or gouged, replace the cylinder.

CC390D

4. If any measurement exceeds the limit, replace

the cylinder and piston.

Measuring Camshaft Runout

NOTE: If the camshaft is out of tolerance, it must

be replaced.

1. Place the camshaft on a set of V blocks; then

position the dial indicator contact point against

the shaft and zero the indicator.

CC283D

2. Rotate the camshaft and note runout; maximum

tolerance must not exceed specifications.

Measuring Camshaft Lobe Height

1. Using a calipers, measure each cam lobe height.

ATV1013A

2. The lobe heights must not exceed minimum

specifications.

Inspecting Camshaft Bearing

Journal

1. Inspect the bearing journal for scoring, seizure

marks, or pitting.

2. If excessive scoring, seizure marks, or pitting is

found, the cylinder head assembly must be

replaced.

Measuring Camshaft to

Cylinder Head Clearance

1. Remove the adjuster screws and jam nuts.

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3

CC005D

2. Place a strip of plasti-gauge in each of the cam-

shaft lands in the cylinder head.

3. Place the valve cover on the cylinder head and

secure with the valve cover cap screws. Tighten

securely.

NOTE: Do not rotate the camshaft when measur-

ing clearance.

4. Remove the cap screws securing the valve cover

to the cylinder; then remove the valve cover and

camshaft.

CC003D

5. Match the width of the plasti-gauge with the

chart found on the plasti-gauge packaging to

determine camshaft to cylinder head and valve

cover clearance.

CC145D

6. If clearance is excessive, measure the journals of

the camshaft.

CC287D

NOTE: If the journals are worn, replace the cam-

shaft; then measure the clearance again. If it is still

out of tolerance, replace the cylinder head.

Inspecting Camshaft Spring/Drive

Pin

1. Inspect the spring and drive pin for damage.

CF061A

CF060A

2. If damaged, the camshaft must be replaced.

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3-156

Servicing Left-Side

Components

RECOIL STARTER

0737-764

Removing/Disassembling

1. Remove the cap screws securing the recoil

starter assembly to the left-side cover; then

remove the starter.

CC039D

2. Rotate the reel counterclockwise until the notch

of the reel is near the rope guide in the case.

Guide the rope into the notch and slowly allow

the reel to retract until all spiral spring tension is

released.

B600D

3. Remove the nut.

B601D

4. Slowly release the friction plate and lift the plate

with ratchet guide free of the recoil case; then

remove the ratchet guide from the friction plate.

B602D

5. Remove the spring, collar, and friction spring.

! WARNING

During the disassembly procedure, continuous

downward pressure must be exerted on the reel

so it does not accidentally disengage and cause

injury.

KEY

1. Recoil Starter Assy

2. Rope Assy

3. Spiral Spring

4. Reel

5. Ratchet Assy

6. Nut

7. Cap Screw

8. Nut

9. Starter Cup

10. O-Ring

11. O-Ring

12. Spacer

13. Oil Seal

14. Bearing

! CAUTION

During the disassembly procedure, make sure all

spring tension is released before continuing.

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3-157

3

B603D

6. Remove the ratchet and account for the pin.

B604D

7. Carefully lift the reel from the case making sure

the spiral spring does not accidentally disengage

from the case.

B605D

8. Remove the protective cover from the starter

handle and pull the rope out of the handle; then

untie the knot in the rope and remove the han-

dle.

NOTE: Do not remove the spiral spring unless

replacement is necessary. It should be visually

inspected in place to save time. If replacement is

necessary, follow steps 9-10.

9. Remove the spring from the case by lifting the

spring end up and out. Hold the remainder of the

spring with thumbs and alternately release each

thumb to allow the spring to gradually release

from the case.

10. Unwind the rope from the reel and remove the

rope.

Cleaning and Inspecting

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all components.

2. Inspect the springs and ratchet for wear or dam-

age.

3. Inspect the reel and case for cracks or damage.

4. Inspect the shaft for wear, cracks, or damage.

5. Inspect the rope for breaks or fraying.

6. Inspect the spiral spring for cracks, crystalliza-

tion, or abnormal bends.

7. Inspect the handle for damage, cracks, or deteri-

oration.

Assembling/Installing

1. If removed, insert the spiral spring into the case

with the outer end of the spring around the

mounting lug in the case; then wind it in a coun-

terclockwise direction until the complete spring

is installed.

NOTE: The spiral spring must seat evenly in the

recoil case.

B606D

2. Insert the rope through the hole in the reel and

tie a knot in the end; then wrap the rope counter-

clockwise around the reel leaving approximately

50 cm (20 in.) of rope free of the reel.

! WARNING

Care must be taken when lifting the reel free of

the case. Wear safety glasses to avoid injury.

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3-158

3. Apply low-temperature grease to the spring and

hub.

4. Thread the end of the rope through the guide

hole of the case; then thread the rope through the

handle and secure it with a double knot. Install

the protective cover into the handle.

5. Align the inner hook of the spiral spring with the

notch in the reel.

B605D

6. Install the ratchet making sure the end is prop-

erly installed on the reel.

B604D

7. Install the friction spring and the spring cover.

B603D

8. Install the friction plate with the ratchet guide

fitting into the ratchet.

B602D

9. While pushing down on the reel, install the nut.

Tighten securely.

B601D

10. With the 50 cm (20 in.) of rope exposed, hook

the rope in the notch of the reel.

11. Rotate the reel four turns counterclockwise; then

release the rope from the notch and allow the

rope to retract.

12. Pull the rope out two or three times to check for

correct tension.

NOTE: Increasing the rotations in step 11 will

increase spring tension.

13. Place the recoil starter assembly into position on

the left-side cover; then tighten the cap screws

to specifications.

CC039D

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3-159

3

Servicing Right-Side

Components

NOTE: Whenever a part is worn excessively,

cracked, damaged in any way, or out of tolerance,

replacement is necessary.

INSPECTING CENTRIFUGAL

CLUTCH SHOE

1. Inspect the clutch shoes for uneven wear, chips,

cracks, or discoloration. If any shoe is damaged,

replace the complete set.

2. Inspect the clutch shoes for wear or damage. If

any shoe is worn to the bottom of the groove,

replace the complete set.

ATV1014

INSPECTING CLUTCH HOUSING

1. Inspect the clutch housing for burns, grooving,

cracks, or uneven wear.

2. If the housing is damaged in any way, the hous-

ing must be replaced.

INSPECTING PRIMARY

ONE-WAY DRIVE

1. Insert the drive into the clutch housing.

2. Rotate the inner race by hand and verify the

inner race rotates only one direction.

3. If the inner race is locked in place or rotates both

directions, the drive assembly must be replaced.

INSPECTING OIL PUMP

1. Inspect the pump for damage.

2. It is inadvisable to remove the screw securing

the pump halves. If the oil pump is damaged, it

must be replaced.

CC446D

DRIVEN PULLEY ASSEMBLY

Disassembling

1. Secure Driven Pulley Compressor (p/n

0444-121) in a suitable holding fixture such as a

bench vise; then remove the wing nut, holding

handle, flat washer, and pilot bushing leaving

the large spacer on the compressor tool base.

CD047

2. Place the driven pulley assembly onto the com-

pressor tool base engaging the dowel pins into

appropriate holes in the fixed face of the assem-

bly.

! CAUTION

Always replace the clutch shoes as a complete set

or severe imbalance could occur.

! WARNING

This procedure involves relaxing a compressed

spring assembly. DO NOT attempt disassembling

without the proper tools.

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3-160

CD048

3. Install the pilot bushing with the machined end

directed down; then fit the bushing into the pul-

ley hub.

CD067

4. Using a suitable marking pen, make alignment

marks on the fixed face spring holder and both

pulley faces.

CD049

5. Place the holding handle on the spring holder

fitting the two dowel pins into the spring holder

face; then install a flat washer and the wing nut.

Turn the wing nut down until resistance is felt.

NOTE: Do not use the wing nut to compress the

spring further.

CD050

6. Using a spanner and suitable breaker bar, loosen

the notched-ring nut; then spin the nut free of

the hub.

CD051

7. Firmly hold the handle and slowly turn the wing

nut counterclockwise to relax the spring.

NOTE: There will be a tendency for the handle to

rotate clockwise approximately ¼ turn as the

spring holder clears the flats or hub. This is due to

a slight counterclockwise preload on the spring.

CD052

! WARNING

The spring assembly is under pressure. Extreme

care must be taken when relaxing the spring. Always

wear safety glasses. Use proper tools only.

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3

8. Release the preload slowly; then continue to

relax the spring until the wing nut is flush with

the end of the threads.

9. Firmly holding the spring and spring holder,

remove the wing nut; then remove the spring.

CD053

10. Using a thin pry-bar or screwdriver, work the

movable face sleeve upward and free of the

O-rings; then remove the sleeve.

CD054

11. Remove the four pins and spacers from the cam

slots in the movable face; then remove the mov-

able face.

CF091

CD056

Inspecting

1. Inspect the pulley faces for wear, galling, or

grooving.

2. Inspect the O-rings on the movable face for

nicks, tears, or swelling.

CF092A

3. Inspect two grease seals in the movable face for

nicks, cuts, or damage.

CF095A

4. Inspect the pins and bushings for wear, flat

spots, looseness, or cracking.

Assembling

1. Place the fixed face of the driven pulley on the

pulley compressor base making sure the dowel

pins are engaged in the appropriate holes in the

pulley face.

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NOTE: Make sure the spacer is on the base or

damage to the fixed face will occur when the

spring is compressed.

CD048

2. Apply multi-purpose grease to the O-rings and

grease seals on the movable face; then install on

the fixed face making sure the alignment marks

are properly aligned.

CD060

3. Install the four pins and spacers into the fixed

face hub; then pack the cam slots in the movable

face with multi-purpose grease.

CF095A

4. Install the movable face sleeve aligning the hole

in the spring seat with the spring anchor hole in

the movable face.

CF097

5. Install the spring over the hub and movable face

sleeve; then insert the end of the spring through

the sleeve and into the spring anchor hole in the

movable face.

CF089A

6. Place the spring holder on the spring engaging

the spring end with the appropriate anchor hole.

CF087A

7. Assemble the notched-ring nut, spring holding

handle, one flat washer, and the wing nut in

order on the pulley compressor bolt; then thread

the wing nut onto the bolt.

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3

CD052

8. Compress the spring until the spring holder

nears the threads on the fixed face hub; then

using the handle, wind the spring holder coun-

terclockwise to align the flats of the spring

holder and hub.

CD052A

9. Continue compressing the spring while guiding

the spring holder onto the hub. When a slight

resistance is felt, stop turning the wing nut.

10. Install the nut (threads coated with red Loctite

#271); then tighten the nut to specification using

the spanner and a torque wrench.

CD066

11. Remove the wing nut, washer, and holding han-

dle; then remove the driven pulley from the pul-

ley compressor.

Servicing Center

Crankcase Components

NOTE: Whenever a part is worn excessively,

cracked, damaged in any way, or out of tolerance,

replacement is necessary.

SECONDARY GEARS

NOTE: When checking and correcting secondary

gear backlash and tooth contact, the universal

joint must be secured to the front shaft or false

measurements will occur.

Checking Backlash

NOTE: The rear shaft and bevel gear must be

removed for this procedure. Also, always start with

the original shims on the rear shaft.

1. Place the left-side crankcase cover onto the

left-side crankcase half to prevent runout of the

secondary transmission output shaft.

2. Install the secondary driven output shaft assem-

bly onto the crankcase.

3. Mount the dial indicator so the tip is contacting

a tooth on the secondary driven bevel gear.

4. While rocking the driven bevel gear back and

forth, note the maximum backlash reading on

the gauge.

5. Acceptable backlash range is 0.05-0.33 mm

(0.002-0.013 in.).

Correcting Backlash

NOTE: If backlash measurement is within the

acceptable range, no correction is necessary.

1. If backlash measurement is less than specified,

remove an existing shim, measure it, and install

a new thinner shim.

2. If backlash measurement is more than specified,

remove an existing shim, measure it, and install

a thicker shim.

NOTE: Continue to remove, measure, and install

until backlash measurement is within tolerance.

Note the following chart.

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Checking Tooth Contact

NOTE: After correcting backlash of the second-

ary driven bevel gear, it is necessary to check

tooth contact.

1. Remove the secondary driven output shaft

assembly from the left-side crankcase half.

2. Clean the secondary driven bevel gear teeth of

old oil and grease residue.

3. Apply a thin, even coat of a machinist-layout

dye to several teeth of the gear.

4. Install the secondary driven output shaft assem-

bly.

5. Rotate the secondary driven bevel gear several

revolutions in both directions.

6. Examine the tooth contact pattern in the dye and

compare the pattern to the illustrations.

ATV-0103

ATV-0105

ATV-0104

Correcting Tooth Contact

NOTE: If tooth contact pattern is comparable to

the correct pattern illustration, no correction is

necessary.

If tooth contact pattern is comparable to an incorrect

pattern, correct tooth contact according to the fol-

lowing chart.

NOTE: To correct tooth contact, steps 1 and 2

(with NOTE) of “Correcting Backlash” must be fol-

lowed and the above “Tooth Contact/Shim Correc-

tion” chart must be consulted.

CRANKSHAFT ASSEMBLY

Measuring Connecting Rod

(Small End Inside Diameter)

1. Insert a snap gauge into the upper connecting

rod small end bore; then remove the gauge and

measure it with micrometer.

Backlash Measurement Shim Correction

Under 0.05 mm (0.002 in.) Decrease Shim

Thickness

At 0.05-0.33 mm

(0.002-0.013 in.)

No Correction Required

Over 0.33 mm (0.013 in.) Increase Shim

Thickness

Tooth Contact Shim Correction

Contacts at Top Decrease Shim Thickness

Contacts at Root Increase Shim Thickness

! CAUTION

After correcting tooth contact, backlash must again

be checked and corrected (if necessary). Continue

the correcting backlash/correcting tooth contact pro-

cedures until they are both within tolerance values.

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3

CC290D

2. Maximum diameter must not exceed specifications.

Measuring Connecting Rod

(Small End Deflection)

1. Place the crankshaft on a set of V-blocks and

mount a dial indicator and base on the surface

plate. Position the indicator contact point against

the center of the connecting rod small end jour-

nal.

2. Zero the indicator and push the small end of the

connecting rod away from the dial indicator.

3. Maximum deflection must not exceed specifica-

tions.

Measuring Connecting Rod

(Big End Side-to-Side)

1. Push the lower end of the connecting rod to one

side of the crankshaft journal.

2. Using a feeler gauge, measure the gap between

the connecting rod and crankshaft journal.

CC289D

3. Acceptable gap range must be within specifica-

tions.

Measuring Connecting Rod

(Big End Width)

1. Using a calipers, measure the width of the con-

necting rod at the big-end bearing.

2. Acceptable width range must be within specifi-

cations.

Measuring Crankshaft (Runout)

1. Place the crankshaft on a set of V blocks.

2. Mount a dial indicator and base on the surface

plate. Position the indicator contact at point 1 of

the crankshaft.

ATV-1074

3. Zero the indicator and rotate the crankshaft slowly.

4. Maximum runout must not exceed specifications.

NOTE: Proceed to check runout on the other end

of the crankshaft by positioning the indicator con-

tact at point 2 and following steps 2-4.

Measuring Crankshaft

(Web-to-Web)

1. Using a calipers, measure the distance from the

outside edge of one web to the outside edge of

the other web.

ATV-1017

2. Acceptable width range must be within specifi-

cations.

! CAUTION

Care should be taken to support the connecting rod

when rotating the crankshaft.

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COUNTERSHAFT

739-954A

Disassembling

From the right side:

1. Remove the right drive gear washer (17); then

remove drive gear #2 (2).

2. Remove the reverse driven gear dog (3); then

remove the circlip (4).

3. Remove the reverse driven gear spacer (5); then

remove the circlip (4).

4. In order, remove washer (6), reverse driven gear

(7), bearing (8), and bushing (9).

5. In order, remove washer (6), lock washer (10,

lock washer (11), and low driven gear (12).

6. In order, remove bearing (8), bushing (9), and

driven gear washer (13).

From the left side:

1. Remove the left drive gear washer (16); then

remove the high driven gear (15) and bearing (8).

2. In order, remove bushing (9), driven gear

washer (13), and sliding dog (14).

Assembling

From the left side:

1. Install the sliding dog (14), driven gear washer

(13), and bushing (9).

2. Install bearing (8) and high driven gear (15);

then install the left drive gear washer (16).

From the right side:

1. Install driven gear washer (13), bushing (9),

bearing (8), and low driven gear (12).

2. Install lock washer (11), lock washer (10),

washer (6), and bushing (9).

3. Install bearing (8), reverse driven gear (7),

washer (6), and the circlip (4).

4. Install reverse driven gear spacer (5), circlip (4),

reverse driven gear dog (3), and drive gear #2

(2); then install the right drive gear washer (17).

NOTE: When installing the countershaft assem-

bly, account for the washer on each end of the shaft.

Assembling Crankcase

Half

1. Install the output shaft assembly into the crank-

case making sure the two gears, shim, washer,

and nut are properly sequenced.

CC686

NOTE: The beveled side of the secondary drive

gear must face upward.

2. Apply red Loctite #271 to the threads of the out-

put shaft; then secure with the nut. Tighten nut

to specifications; then using a punch, peen the

nut.

! CAUTION

When disassembling the countershaft, care must be

taken to note the direction each major component

(dog, gear) faces. If a major component is installed

facing the wrong direction, transmission damage

may occur and/or the transmission will malfunction.

In either case, complete disassembly and assembly

will be required.

KEY

1. Countershaft

2. Drive Gear #2

3. Reverse Driven Gear Dog

4. Circlip

5. Reverse Driven Gear Spacer

6. Washer

7. Reverse Driven Gear

8. Bearing

9. Bushing

10. Lock Washer

11. Lock Washer

12. Low Driven Gear

13. Driven Gear Washer

14. Sliding Dog

15. High Driven Gear

16. Drive Gear Washer (L)

17. Drive Gear Washer (R)

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3

CC687

3. Apply a liberal amount of engine oil to the

crankshaft bearing. Using a propane torch, heat

the bearing until the oil begins to smoke; then

slide the crankshaft assembly into place.

CC688

CC689

NOTE: If heating the bearing is not possible, the

crankshaft can be installed using a crankshaft

installing tool.

4. Install the crank balancer.

CD832B

NOTE: It will be necessary to rotate the crank

balancer until the counterweight is facing away

from the crankshaft; then rotate the crankshaft

clockwise into the journal area to allow the crank

balancer to be fully seated.

5. Place the key into the crank balancer keyway;

then install the crank balancer gear making sure

the alignment dots on the crank balancer gear

and the crankshaft gear align.

CD826A

6. Install the driveshaft.

CC675

7. Place a washer on each end of the countershaft

assembly; then install the assembly.

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CC674

8. Place a washer on each end of the gear shift shaft;

then install the shaft assembly making sure the two

holes on the end of the shaft are positioned

vertically.

9. Insert the two shift forks into the sliding dogs

noting the direction of the tabs from disassem-

bling; then install the shift fork shaft.

NOTE: Make sure the shift fork tabs face upward

and that they are properly seated into the shift

cams.

CC669

10. Install the reverse idler gear assembly noting the

positioning of the two washers, gear, bushing,

and shaft.

CC668

11. Install the front and rear secondary driven shaft

assemblies into the left side of the crankcase

making sure the bearing locating pins are facing

upward and the bearing C-ring is fully seated in

the crankcase.

CD268A

12. Place the oil strainer into position; then secure

with the two screws.

13. Place the oil strainer cap into position making

sure the O-ring is in position; then secure the

cap with cap screws. Tighten securely.

Joining Crankcase

Halves

1. Apply High-Temp Sealant to the left-side mat-

ing surface.

2. Lightly oil all bearings and grease all shafts in

the right-side crankcase.

3. Using a propane torch, heat the right-side crank-

shaft bearing until the oil begins to smoke; then

join the two crankcase halves.

CC695

4. Using a plastic mallet, lightly tap the case halves

together until cap screws can be installed.

5. From the right side, install the 8 mm cap screws;

then tighten only until snug.

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NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

6. From the left side, install the remaining 8 mm

cap screws (two inside the case); then tighten

only until snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

7. From the left side, install the case half 6 mm cap

screws; then tighten only until snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

8. From the right side, install the 6 mm cap screws;

then tighten only until snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

9. In a crisscross/case-to-case pattern, tighten the 8

mm cap screws (from steps 5-6) until the halves

are correctly joined; then tighten to specifica-

tions.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

10. In a crisscross/case-to-case pattern, tighten the 6

mm cap screws (from steps 7-8) to specifica-

tions.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

Installing Right-Side

Components

1. Install the shift indicator sending unit making

sure the two neutral contact pins and the two

springs are properly positioned. Tighten the

Allen-head screws securely.

CD997

CD994

2. Install the secondary shaft bearing housing mak-

ing sure the two alignment pins are properly posi-

tioned. Tighten the Allen-head screws securely.

CD999

3. Install the oil pump onto the engine; then tighten

the Phillips-head screws securely.

CD988

AT THIS POINT

After completing center crankcase components,

proceed to Installing Right-Side Components, to

Installing Left-Side Components, and to In-

stalling Top-Side Components.

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4. Install the oil pump drive gear spacer onto the

crank balancer shaft. Grease the pin and insert it

into the shaft; then install the drive gear making

sure the raised side of the gear is facing toward

the inside. Secure the gear with the cap screw

(threads coated with red Loctite #271) and the

washer. Tighten the cap screw to specifications.

CD992

CD991

5. Grease the driven gear pin and insert it into the

oil pump shaft; then install the driven gear (not-

ing the direction of the sides of the gear from

removing). Secure with a snap ring.

CD985A

CD984

NOTE: When installed correctly, the sides of the

drive and driven gears will be flush with each other.

6. Install the clutch shoe assembly and secure with

the washer (with the flat side facing the assem-

bly as noted in removing) and the nut (threads

coated with red Loctite #271). Tighten to speci-

fications.

FI336A

FI279A

7. Lightly grease the clutch housing seal; then

insert the left fixed drive spacer.

! CAUTION

Care must be taken that the directional washer be

installed correctly and note that the nut has

left-hand threads.

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3

CF088A

CF086

8. Install the clutch cover alignment pins into the

crankcase, apply oil to the cover gasket, and

install the gasket onto the crankcase.

9. Apply grease to the outer edges of the clutch

housing; then from inside the clutch cover,

install the clutch housing into the cover using a

rubber mallet.

10. Install the one-way clutch onto the clutch shoe

assembly.

CF084A

11. Place the clutch cover/clutch housing assembly

into position on the crankcase; then secure with

the cap screws making sure the differ-

ent-lengthed cap screws are in their proper loca-

tion. Tighten to specifications.

12. Place the air intake plate cushion into position;

then install the air intake plate. Tighten the cap

screws (threads treated with a small amount of

red Loctite #271) securely.

CD971

CD970

13. Place the driven pulley assembly into position

and secure with the nut. Tighten to specifica-

tions.

CC726

14. Slide the fixed drive face onto the shaft.

! CAUTION

When installed correctly, the green alignment dot (or

the word OUTSIDE) on the one-way clutch is visible.

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15. Spread the faces of the driven pulley by pushing

the inner face toward the engine while turning it

counterclockwise; then when the faces are sepa-

rated, insert a wedge (approximately 3/8 in.

thick) between the faces. Release the inner face.

16. Place the V-belt into position on the driven pul-

ley and over the front shaft.

PR389

NOTE: The arrows on the V-belt should point for

ward.

17. Pinch the Vbelt together near its center and

slide the spacer and movable drive face onto the

shaft. Secure the drive face with a nut (threads

coated with red Loctite #271). Tighten the nut to

specifications.

FI428A

NOTE: At this point, the wedge can be removed

from between the driven pulley faces.

18. Rotate the V-belt and drive/driven assemblies

until the Vbelt is flush with the top of the driven

pulley.

19. Place the V-belt cover gasket into position; then

install the cover and secure with the cap screws

making sure the different-lengthed cap screws

are in their proper location. Tighten the cap

screws to specifications.

CD083

Installing Left-Side

Components

NOTE: Plug the oil passage in the crankcase

housing prior to installing the drive gear/driven

gear assembly to prevent loss of an alignment pin.

1. Install the water pump driven gear alignment pin

and the driven gear (with the beveled side of the

gear facing outward as noted in removing); then

secure with the snap ring.

CD950A

! CAUTION

Make sure the splines extend beyond the drive face

or a false torque reading and spline damage may

occur.

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3

CD952A

CD949

NOTE: The sharp side of the snap ring should be

facing outward.

2. Install the water pump drive gear drive pin and

the drive gear (with the flat side of the gear fac-

ing outward as noted in removing); then secure

with the snap ring.

CD946A

CD944

NOTE: The sharp side of the snap ring should be

facing outward.

NOTE: Once the gears are secured, remove the

oil passage plug from the crankcase.

3. Install the two starter gear shafts; then install the

two starter gears (with the beveled side of the

intermediate gear facing inward as noted in

removing).

CD139

CD145

4. In order on the crankshaft, install a washer, ring

gear, key, and the magneto rotor. Secure with the

nut (threads coated with red Loctite #271).

Tighten to specifications.

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CD948A

CD940B

5. Install the shift cam plate onto the shift cam

shaft; then coat the cap screw threads with red

Loctite #271 and tighten securely.

CD935A

CD934

6. Install the shift cam stopper, spring, and two

washers; then coat the threads on the mounting

stud with red Loctite #271 and install the nut.

Tighten securely.

PR434A

7. Install the shift shaft with two washers making

sure to align the timing mark on the shift shaft

with the mark on the shift cam plate.

CD954A

CD927A

8. Lubricate the magneto cover gasket with fresh

engine oil; then place it into position on the two

alignment pins. Make sure the outer shift shaft

washer is in place.

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3

PR431A

9. Install the magneto cover and secure with the

cap screws. Tighten only until snug.

10. Place the starter cup/spacer into position on the

crankshaft making sure a new, lubricated O-ring

is inside the cup/spacer. Tighten the flange nut

to specifications.

CD925A

11. Tighten the cap screws (from step 9) to specifi-

cations.

12. Place the speed sensor housing and gasket into

position and secure with the two cap screws.

Tighten securely.

CD069

13. Place the water pump into position and secure

with two cap screws. Tighten securely.

14. Install the crossover tube on the water pump and

cylinder head making sure the O-ring is properly

positioned.

15. Install the shift arm on the shift arm shaft mak-

ing sure the scribed marks (from removing) are

aligned. Tighten securely.

16. Place the gasket and recoil starter/outer magneto

cover into position on the left-side cover; then

tighten four cap screws to specifications.

Installing Top-Side

Components

A. Piston

B. Cylinder

0732-301

NOTE: If the piston rings were removed, install

them in this sequence.

A. Install ring expander (4) in the bottom groove

of the piston; then install the thin oil rings (3)

over the expander making sure the expander

ends do not overlap. Stagger the end gaps of

the upper and lower thin oil rings according

to the illustration.

ATV-1085B

NOTE: Note the direction of the exhaust side of

the piston (5) for correct ring end gap orientation.

!LIGNMENT0IN

!LIGNMENT0IN

-AGNETO#OVER’ASKET

3HIFT3HAFT7ASHER

KEY

1. Cylinder

2. Stud Bolt

3. Nut

4. Cylinder Gasket

5. Pin

6. Water Hose Union

7. Cap Screw

8. O-Ring

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B. Install the compression rings (1 and 2) so the

letter on the top surface of each ring faces the

dome of the piston. Rotate the rings until the

ring end gaps are on directly opposite sides of

the piston (see illustration).

NOTE: On the 500, the chrome (silver) ring

should be installed in the top position. On the 650

H1, the ring with the orientation mark (MTOP)

should be installed in the second (middle) groove

and the ring with the orientation mark (M) should

be installed in the first (top) groove.

ATV-1024

ATV-1024A

1. Install the piston on the connecting rod making

sure there is a circlip on each side and the open

end of the circlip faces upwards.

NOTE: The piston should be installed so the

arrow points toward the exhaust.

CC032D

2. Place the two alignment pins into position. Place

the cylinder gasket into position; then place a

piston holder (or suitable substitute) beneath the

piston skirt and square the piston in respect to

the crankcase.

CC025D

3. Lubricate the inside wall of the cylinder; then

using a ring compressor or the fingers, compress

the rings and slide the cylinder over the piston.

Route the cam chain up through the cylinder

cam chain housing; then remove the piston

holder and seat the cylinder firmly on the crank-

case.

CC024D

! CAUTION

Incorrect installation of the piston rings will result in

engine damage.

! CAUTION

The cylinder should slide on easily. Do not force the

cylinder or damage to the piston, rings, cylinder, or

crankshaft assembly may occur.

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3

4. Loosely install the two nuts which secure the

cylinder to the crankcase.

NOTE: The two cylinder-to-crankcase nuts will

be tightened in step 10.

CC023D

5. Install the coolant hose onto the crankcase union

and tighten the clamp.

C. Cylinder Head

D. Valve Cover

0737-755

NOTE: Steps 1-5 in the preceding sub-section

must precede this procedure.

6. Place the chain guide into the cylinder.

CC022D

7. Place the head gasket into position on the cylin-

der. Place the alignment pins into position; then

place the head assembly into position on the cyl-

inder.

CC020D

CF057A

8. Install the four cylinder head cap screws with

copper washers (note the locations of the differ-

ent-lengthed cap screws). Tighten only until

snug.

KEY

1. Cylinder Head

Assy

2. Valve Guide

3. Pin

4. Cap Screw

5. Cap Screw

6. Cylinder Head

Gasket

7. Pin

8. Cap Screw

9. Cap Screw

10. Stud Bolt

11. Stud Bolt

12. Stud Bolt

13. Cap Screw

14. Cap Screw

15. Nut

16. Nut

17. Gasket

18. Gasket

19. Spark Plug

20. Inspection Cap

21. O-Ring

22. Cap Screw

23. Stud Bolt

24. Cylinder Head

Plug

25. Intake Pipe

Assy

26. O-Ring

27. Cap Screw

28. Clamp

29. Temperature

Switch Assy

30. Thermostat

Cover

31. Thermostat

*Frost Plug

*Not Illustrated

! CAUTION

Care should be taken that the bottom of the chain

guide is secured in the crankcase boss.

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3-178

CC272D

9. Loosely install the five cylinder head nuts.

10. In a crisscross pattern, tighten the four cylinder

head cap screws (from step 8) to 3.8 kg-m (27.5

ft-lb) 500 models, 5.5 kg-m (40 ft-lb) 650 H1;

then tighten the 8 mm nut (from step 9) to 2.5

kg-m (18 ft-lb). Using a crisscross pattern,

tighten the 6 mm nuts (from step 9) to 1.1 kg-m

(8 ft-lb). Tighten the two cylinder-to- crankcase

nuts (from step 4) securely.

11. With the timing inspection plug removed and

the chain held tight, rotate the crankshaft until

the piston is at top-dead-center.

12. With the alignment pin installed in the camshaft,

loosely place the cam sprocket (with the

recessed side facing the cam shaft lobes) onto

the camshaft. At this point, do not “seat” the

sprocket onto the shaft.

732-307B

NOTE: At this point, oil the camshaft bearings,

cam lobes, and the three seating journals on the

cylinder.

13. While holding the cam chain sprocket to the

side, install the rear cam chain tensioner guide

into the cylinder head. Install the pivot cap

screw and washer.

CD461

14. With the cam lobes directed down (toward the

piston), maneuver the camshaft/sprocket assem-

bly through the chain and towards its seating

position; then loop the chain over the sprocket.

NOTE: Note the position of the alignment marks

on the end of the camshaft. They must be parallel

with the valve cover mating surface. If rotating the

camshaft is necessary for alignment, do not allow

the chain and sprocket to rotate and be sure the

cam lobes end up in the down position.

CD463

15. Seat the cam sprocket onto the camshaft making

sure the alignment pin in the camshaft aligns

with the smallest hole in the sprocket; then place

the camshaft/sprocket assembly onto the cylin-

der ensuring the following.

CF013A

A. Piston still at top-dead-center.

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3-179

3

B. Camshaft lobes directed down (toward the

piston).

C. Camshaft alignment marks parallel to the

valve cover mating surface.

D. Recessed side of the sprocket directed toward

the cam lobes.

E. Camshaft alignment pin and sprocket align-

ment hole (smallest) are aligned.

16. Place the tab-washer onto the sprocket making

sure it covers the pin in the alignment hole.

ATV1027

17. Install the first cap screw (threads coated with

red Loctite #271) securing the sprocket and

tab-washer to the camshaft. Tighten only until

snug.

CD464

18. Rotate the crankshaft until the second cap screw

securing the sprocket to the camshaft can be

installed; then install the cap screw (threads

coated with red Loctite #271) and tighten to spec-

ifications. Bend the tab to secure the cap screw.

CD465

19. Rotate the crankshaft until the first cap screw

(from step 17) can be addressed; then tighten to

specifications. Bend the tab to secure the cap

screw.

CD466

20. Place the C-ring into position in its groove in the

cylinder head.

CC012D

21. Install the cylinder head plug in the cylinder

head with the open end facing downward and

toward the inside.

! CAUTION

If any of the above factors are not as stated, go back

to step 11 and carefully proceed.

! CAUTION

Care must be taken that the tab-washer is installed

correctly to cover the alignment hole on the

sprocket. If the alignment pin falls out, severe

engine damage will result.

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3-180

CD468

22. Remove the cap screw from the end of the chain

tensioner; then using a flat-blade screwdriver,

rotate the adjuster screw inside the tensioner

clockwise until the screw bottoms.

CD501

NOTE: The adjuster shaft will be drawn into the

tensioner as the adjuster screw is rotated clock-

wise. The adjuster shaft tension will be released in

step 24.

23. Place the chain tensioner adjuster assembly and

gasket into position on the cylinder and secure

with the two Allen-head cap screws.

CD469

24. Using a flat-blade screwdriver, rotate the

adjuster screw inside the tensioner counter-

clockwise until all tension is released; then

install the cap screw into the end of the chain

tensioner.

CD470

CD471

25. Loosen the four adjuster screw jam nuts; then

loosen the four adjuster screws on the rocker

arms in the valve cover.

CC005D

26. Apply a thin coat of Three Bond Sealant to the

mating surfaces of the cylinder head and valve

cover.

! CAUTION

The open end of the plug must be positioned down-

ward.

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3

CC275D

27. Place the valve cover into position.

NOTE: At this point, the rocker arms and

adjuster screws must not have pressure on them.

28. Install the four top side cap screws with rubber

washers; then install the remaining cap screws.

Tighten only until snug.

CC003D

29. In a crisscross pattern starting from the center

and working outward, tighten the cap screws

securely.

30. Adjust valve/tappet clearance using the follow-

ing procedure.

NOTE: Use Valve Clearance Adjuster (p/n

0444-078) for this procedure.

A. Turn the engine over until the piston reaches

top dead center on the compression stroke.

B. Place the valve adjuster onto the jam nut

securing the tappet adjuster screw; then rotate

the valve adjuster dial clockwise until the end

is seated in the tappet adjuster screw.

C. While holding the valve adjuster dial in

place, use the valve adjuster handle and

loosen the jam nut; then rotate the tappet

adjuster screw clockwise until friction is felt.

D. Align the valve adjuster handle with one of

the marks on the valve adjuster dial.

E. While holding the valve adjuster handle in

place, rotate the valve adjuster dial counter-

clockwise until specified valve/tappet clear-

ance is attained.

NOTE: Rotating the valve adjuster dial counter-

clockwise will open the valve/tappet clearance by

0.05 mm (0.002 in.) per mark.

F. While holding the adjuster dial at the proper

clearance setting, tighten the jam nut securely

with the valve adjuster handle.

31. Place the two tappet covers into position making

sure the proper cap screws are with the proper

cover. Tighten the cap screws securely.

CC001D

32. If removed, install the spark plug. Tighten to

specifications.

Installing

Engine/Transmission

NOTE: Arctic Cat recommends that new gaskets

and O-rings be installed whenever servicing the

ATV.

1. From the left side, place the engine/transmission

into the frame; then slide the engine rearward as

far as possible.

2. Slightly raise the rear of the engine and engage

the front drive coupler into the splines of the

front drive output yoke; then slide the engine

forward as far as possible.

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3-182

CD818

3. Raise the rear of the engine and place a block

beneath it; then install the propeller shaft and

output flange into the rear drive coupler.

CD821

4. Remove the block from beneath the engine; then

align the rear drive flanges and secure with four

cap screws. Tighten to specifications.

CD824

5. Install two engine mounting through-bolts, two

bushings, and two washers; then tighten the

through-bolt flange nuts to specifications.

CD809

6. Secure the exhaust pipe to the engine with two

cap screws making sure the mounting brackets

engage the frame grommets; then install the

muffler and tighten all mounting hardware to

specifications.

CD803

CF138A

7. Install the cooling ducts with clamps and tighten

the clamps securely.

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3

CD515

CD793

8. Secure the engine ground wire to the engine

with a cap screw. Tighten to specifications.

CD810

9. Connect the gear position indicator connector

(A), stator connector (B), and the CDI connector

(C) to the main wiring harness.

CD797A

10. Connect the temperature sensor wire to the main

wiring harness.

11. Secure the wires to the frame with nylon ties.

12. Connect the speed sensor connector to the hous-

ing.

13. Secure the positive cable to the starter motor.

14. Secure all wiring to the frame and upper engine

bracket with cable ties.

15. Secure the two coolant/oil hoses to the engine.

16. Secure the crankcase vent hose to the air cleaner

housing; then secure the inlet boot and carbure-

tor to the air cleaner housing.

CD787

CD785

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3-184

17. Secure the shift rod to the engine with a new

E-clip.

CD774

18. Place the left-side footwell and foot peg in posi-

tion on the frame; then secure with existing

hardware. Tighten to specifications.

CD782

19. Install the front body panel with existing hard-

ware (see Section 8).

20. Connect the hose to the fuel pump; then connect

the vacuum hose and secure with hose clamps.

CD766A

21. Place the side panels into position; then install

the reinstallable rivets.

22. Place the battery into position in the battery

compartment; then install the battery cables and

vent hose. Secure with the battery cover.

23. Add proper amounts of engine/transmission oil

and coolant.

24. Install the seat.

! CAUTION

Battery acid is harmful if it contacts eyes, skin, or

clothing. Care must be taken whenever handling a

battery.

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3-185

3

Table of Contents

(500 — Manual Transmission)

Removing Engine Transmission……….……………. 3-185

Top-Side Components……………….…………….…… 3-189

Removing Top-Side Components …….……………. 3-189

Left-Side Components ……………………….………… 3-193

Removing Left-Side Components ….……………. 3-193

Right-Side Components …………….………….……… 3-198

Removing Right-Side Components…..……………. 3-198

Center Crankcase Components……….……………. 3-202

Separating Crankcase Halves………….……………. 3-202

Disassembling Crankcase Half ……………………… 3-204

Servicing Components………..……………..………… 3-206

Assembling Crankcase Half ………………..………… 3-232

Joining Crankcase Halves……………….…………. 3-235

Installing Right-Side Components…….……………. 3-236

Installing Left-Side Components …………….……… 3-240

Installing Top-Side Components …………………. 3-245

Installing Engine/Transmission…………….………… 3-251

Removing Engine/

Transmission

Many service procedures can be performed without

removing the engine/transmission from the frame.

Closely observe the note introducing each sub-sec-

tion for this important information.

Secure the ATV on a support stand to elevate the

wheels.

1. Remove the seat.

2. Remove the negative cable from the battery;

then remove the positive cable. Remove the bat-

tery vent hose; then remove the battery.

3. Remove the radiator access cover, steering post

cover, and storage compartment cover assem-

bly; then remove the storage compartment box.

4. Remove the reinstallable rivets securing the side

panels; then remove the panels.

CD683A

5. Remove the instrument pod; then remove the

front rack and front body panel (see Section 8).

6. Drain the oil from beneath the engine/transmis-

sion; then drain the cooling system.

ATV-0109

CD799A

7. Remove the air filter (see Section 2).

AT THIS POINT

If the technician’s objective is to service/replace

left-side cover oil seals (3), front output joint oil

seal (1), rear output joint oil seal (1), and/or the oil

strainer (from beneath the engine/transmission),

the engine/transmission does not have to be

removed from the frame.

! WARNING

Make sure the ATV is solidly supported on the sup-

port stand to avoid injury.

! CAUTION

Battery acid is harmful if it contacts eyes, skin, or

clothing. Care must be taken whenever handling a

battery.

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3-186

8. Remove the vacuum hose and the

fuel-pump-to-carburetor hose.

CD766A

9. Remove the cap screws securing the left-side

foot peg and footwell to the footrest; then

remove the footwell.

CD782

10. Remove the springs securing the muffler to the

exhaust pipe; then remove the muffler. Account

for two exhaust springs.

CF138A

11. Remove the cap screws securing the exhaust

pipe to the head; then remove the exhaust pipe.

CD803

12. Remove the E-clip securing the shift rod to the

engine shift arm; then allow the shift rod to

swing forward and hang straight down from the

shift lever.

13. Disconnect the speed sensor connector from the

sensor housing.

14. Remove the four cap screws securing the rear

output joint to the transmission and push the

shaft away from the transmission.

CD805

15. Loosen the clamp securing the air intake duct to

the air filter housing.

CD785

16. Disconnect the crankcase vent hose from the air

filter housing. Loosen the clamp securing the

carburetor intake duct to the air filter housing;

then remove the housing.

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3-187

3

CD787

CD786

17. Remove the clamp securing the upper coolant

hose to the thermostat housing; then disconnect

the hose.

CC335D

18. Disconnect the high tension lead from the spark

plug; then remove the coil.

19. Disconnect the battery ground (negative) cable

from the crankcase cover; then disconnect the

positive cable from the starter motor.

AR600D

AR604D

20. Remove the clamp securing the lower coolant

hose to the water pump housing; then disconnect

the hose.

CC334D

21. Loosen the clamp on the crankcase breather vent

hose; then remove the hose.

CC122D

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3-188

22. Remove the engine/transmission mounting fas-

teners in the following sequence:

A. Lower front: One cap screw, nut, spacer, and

washer.

CC123D

B. Lower rear: One cap screw, nut, spacer, and

washer.

CC126D

23. Raise the rear of the engine enough to allow the

rear output flange to clear the output flange

joint. Place a block beneath the engine in this

position.

CD811

24. Remove the first small boot clamp; then slide

the output flange and driveshaft out of the rear

coupler.

CD812A

CD813

25. Remove the block and lower the rear of the

engine; then remove the boot clamp on the front

output drive yoke.

CD817

26. Move the engine to the rear enough to allow the

front drive coupler to clear the front output

yoke; then move the engine forward and to the

left. Remove the engine from the left-side of the

frame.

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3-189

3

CD773

Top-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to removed from the frame for this procedure.

Removing Top-Side

Components

A. Valve Cover

B. Cylinder Head

NOTE: Remove the spark plug and timing

inspection plug; then using the recoil starter,

rotate the crankshaft to top-dead-center of the

compression stroke.

1. Remove the two tappet covers.

CC001D

NOTE: Keep the mounting hardware with the

covers for assembly purposes or thread them back

into the head to keep them separated.

2. Remove the 12 cap screws securing the valve

cover to the head; account for the four rubber

washers on the top side cap screws. Remove the

valve cover. Account for and note the orienta-

tion of the cylinder head plug. Note the location

of two alignment pins.

CD205

CD468

NOTE: Note that the opening of the head plug

must be directed to the 6 o’clock position.

3. Loosen the cap screw on the end of the ten-

sioner; then remove the two Allen-head cap

screws securing the tensioner adjuster assembly

and remove the assembly. Account for a gasket.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

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3-190

CC009D

CC010D

CC011D

4. Using an awl, rotate the C-ring in its groove

until it is out of the cylinder head; then remove

the C-ring.

NOTE: Care should be taken not to drop the

C-ring down into the crankcase.

CC012D

5. Bend the washer tabs and remove the two cap

screws securing the sprocket to the camshaft;

then drop the sprocket off the camshaft. While

holding the chain, slide the sprocket and cam-

shaft out of the cylinder head.

CC013D

CC266D

NOTE: Loop the chain over the cylinder and

secure it to keep it from falling into the crankcase.

6. Remove the cap screw securing the chain ten-

sioner (account for a washer); then remove the

tensioner.

CC014D

7. Remove the five nuts securing the cylinder head

to the cylinder; then remove the four cylinder

head cap screws with copper washers (note loca-

tion of the different-sized cap screws and nuts).

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3

CC017D

CC018D

CC016D

8. Remove the cylinder head from the cylinder,

remove the gasket, and account for two align-

ment pins.

CC020D

9. Remove the cam chain guide.

CC022D

C. Cylinder

D. Piston

NOTE: Steps 1-9 in the preceding sub-section

must precede this procedure.

10. Loosen the clamp securing the coolant hose to

the union; then detach the hose.

11. Remove the two nuts securing the cylinder to

the crankcase.

CC023D

12. Lift the cylinder off the crankcase taking care

not to allow the piston to drop against the crank-

case. Account for the gasket and two alignment

pins.

AT THIS POINT

To service valves and cylinder head, see

Servicing Top-Side Components sub-section.

AT THIS POINT

To inspect cam chain guide, see Servicing

Top-Side Components sub-section.

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3-192

CC024D

CC025D

CC026D

13. Using an awl, remove one piston-pin circlip.

CC032D

14. Using the Piston Pin Puller (p/n 0644-328),

remove the piston pin. Account for the oppo

site-side circlip. Remove the piston.

NOTE: It is advisable to remove the oppo-

site-side circlip prior to using the puller.

CC033D

NOTE: Support the connecting rod with rubber

bands to avoid damaging the rod or install the

Connecting Rod Holder (p/n 0444-006).

NOTE: If the existing rings will not be replaced

with new rings, note the location of each ring for

proper installation. When replacing with new rings,

replace as a complete set only. If the piston rings

must be removed, remove them in this sequence.

A. Starting with the top ring, slide one end of the

ring out of the ring-groove.

AT THIS POINT

To service cylinder, see Servicing Top-Side

Components sub-section.

! CAUTION

When removing the cylinder, be sure to support the

piston to prevent damage to the crankcase and pis-

ton.

! CAUTION

Do not allow the connecting rod to go down inside

the crankcase. If the rod is down inside the crank-

case and the crankshaft is rotated, severe damage

will result.

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3-193

3

B. Remove each ring by working it toward the

dome of the piston while rotating it out of the

groove.

Left-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to be removed from the frame for this procedure.

Removing Left-Side

Components

A. Recoil Starter

B. Hi/Low Shifter Assembly

C. Speed Sensor Housing

D. Cover

1. Remove the cap screws securing the recoil

starter assembly to the left-side cover; then

remove the recoil starter.

CC039D

2. Remove the flange nut securing the starter cup

to the crankshaft; then remove the starter cup.

Account for the O-ring inside the cup.

CC041D

3. Put the shift lever into the hi-range position and

remove the circlip from the hi/low range shift

shaft; then remove the shift lever.

NOTE: It will be necessary to lift slightly on the

shift lever to remove it from the shaft and plate.

CC044D

AT THIS POINT

To service piston, see Servicing Top-Side

Components sub-section.

AT THIS POINT

To service center crankcase components only,

proceed to Removing Left-Side Components.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

AT THIS POINT

To service the recoil starter, see Servicing

Left-Side Components sub-section.

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3-194

CC045D

4. Remove the inside circlip.

CC046D

5. Remove the two cap screws securing the speed

sensor housing; then remove the housing.

Account for the gasket.

CD069

6. Remove the shift stop housing assembly from

beneath the shift shaft housing. Account for the

stopper and spring.

CC054D

7. Remove the cap screws securing the left-side

cover to the crankcase and note the location of

the long cap screw with rubber washer.

CC047D

CF037A

8. Using Side Case Puller (p/n 0644-262), remove

the side cover. Account for a gasket, two align-

ment pins, and an idle gear limiter bushing.

NOTE: Inspect the inside of the left-side cover

for the four shaft washers that may have come off

with the cover. The three gear shaft washers are

identical and interchangeable. The shift shaft

washer is a larger diameter. Keep the washers with

their respective shafts for installing purposes.

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3-195

3

CD134A

E. Rotor/Flywheel

F. Idle Gear Assembly

NOTE: Steps 1-8 in the preceding sub-section

must precede this procedure.

NOTE: For steps 9-18, refer to illustration

CD134B.

CD134B

NOTE: To aid in installing, it is recommended

that the assemblies are kept together and IN

ORDER.

9. Remove the starter gear assembly (F) from the

crankcase; then remove the starter idler gear (G)

and spacer.

CD136

CD138

10. Remove the idle gear (C), washer, and spacer

from the countershaft.

CD141

11. Remove the #2 drive gear (B), washer, and the

select sliding dog gear from the driveshaft.

Account for a bushing and a washer.

12. Remove the shift fork shaft (D) from the crank-

case boss; then remove the shift fork from the

shaft. Remove the shift shaft assembly (E) from

the fixed shaft. Account for the left shaft washer.

KEY

A. Output Shaft with Driven

Gear

B. Drive Gears #1 & #2

C. Idle Gear

D. Shift Fork with Shaft

E. Shift Shaft Assembly

F. Starter Gear Assembly

G. Starter Idler Gear

H. Starter Clutch Gear

Assembly

I. Rotor/Flywheel

AT THIS POINT

To service shift fork, see Servicing Left-Side

Components sub-section.

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3-196

CD146

CD147

CD152

13. Remove the circlip and washer from the drive-

shaft; then remove the #1 drive gear (B).

Account for a splined bushing and a spacer.

CC059D

CD154A

14. Remove the washer and driven gear (A) from

the output shaft; then account for the bushing.

CD149

CD150

15. Remove the Allen-head screws securing the

shift-indicator sending unit; then remove the

sending unit. Account for an O-ring, two con-

tacts, and two springs.

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3-197

3

CD159

16. Remove the two cap screws securing the starter

to the crankcase; then remove the starter.

Account for the wiring forms.

CC065D

17. Remove the nut securing the rotor/flywheel (I)

to the crankshaft; then install the magneto rotor

remover adapter.

CD562

CD549

18. Using Magneto Rotor Remover (p/n 0444-075),

remove the rotor/flywheel assembly from the

crankshaft. Account for the key; then remove

the starter clutch gear assembly (H) and thrust

washer.

CD550

CD155

AT THIS POINT

To service center crankcase components only,

proceed to Removing Right-Side Components.

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3-198

Right-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to be removed from the frame for this procedure.

Removing Right-Side

Components

A. Oil Filter

B. Water Pump

1. Remove the clamp securing the coolant hose to

the water pump; then remove the hose.

2. Using the adjustable Oil Filter Wrench (p/n

0644-389), remove the oil filter.

3. Remove the three cap screws securing the water

pump cover to the right-side cover; then remove

the water pump cover. Account for the O-ring.

CC027D

CF066A

4. Remove the cap screw securing the impeller to

the impeller shaft; then remove the impeller.

Account for the rubber retainer and porcelain

seal.

CC029D

CD163A

5. Remove the fifteen cap screws securing the

right-side cover to the crankcase. Remove the

cover. Note the location of the long cap screw

and rubber washer. Account for the gasket and

for two alignment pins.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

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3-199

3

CC034D

NOTE: The water pump housing does not have

to be removed when removing the right-side cover.

CD164A

NOTE: When removing the right-side cover,

account for the release roller guide that it does not

fall and cause damage.

CC070D

6. Remove the water pump drive joint from the

water pump shaft. Account for the pin.

CD168A

C. Primary Drive Clutch Shoe

D. Primary Driven Clutch

E. Primary Drive Clutch Housing

NOTE: Steps 1-6 in the preceding sub-section

must precede this procedure.

7. Remove the reverse cam stopper housing and

gasket and account for a stopper and spring.

CC069D

8. Remove the clutch release arm and washer; then

in a crisscross pattern, remove the four cap

screws securing the clutch release roller assem-

bly.

CD171

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CC074D

9. Remove the release plate. Account for four

springs.

10. Remove the primary drive clutch-shoe nut

(left-hand threads) and washer from the drive-

shaft; then using a primary clutch shoe remover,

remove the clutch shoe.

CC072D

11. Remove the primary drive one-way clutch from

the primary drive clutch housing. Note the word

OUTSIDE stamped on the clutch for installing

purposes.

CF043

12. Using the Clutch Sleeve Hub Holder (p/n

0444-007) to hold the clutch sleeve hub, remove

the nut and washer.

CC076D

13. Scribe a line across the primary driven clutch

assembly to aid in assembling.

CC077D

14. Simultaneously, remove the primary driven

clutch assembly and primary drive clutch hous-

ing from their respective shafts. Account for the

sleeve and washers.

CC078D

! CAUTION

Care must be taken when removing the nut; it has

“left-hand” threads.

AT THIS POINT

To service clutch components, see Servicing

Right-Side Components sub-section.

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3

F. Gear Shift Cam Plate/Guide

G. Oil Pump/Oil Strainer

NOTE: Steps 1-14 in the preceding sub-sections

must precede this procedure.

15. Remove the cam chain from the crankcase.

16. Remove the nut and washer securing the oil

pump drive gear to the crank balancer shaft;

then remove the gear and account for the pin and

the spacer.

CC080D

CF070A

17. Remove the gear shift shaft from the crankcase.

CC085D

18. Release the tension from the gear shift cam stop-

per arm spring.

CC086D

19. Remove the cap screw securing the gear shift

cam plate and guide to the gear shift cam; then

remove the cam plate and guide.

CC164D

NOTE: For general servicing, it is advisable to

disassemble, clean, and inspect the oil pump. If

any wear or damage is suspected, replace the oil

pump.

20. Remove the circlip securing the oil pump driven

gear; then remove the gear. Account for the pin

and the washer.

CC088D

! CAUTION

If servicing of the engine/transmission is due to a

lubrication-related problem, replace the oil pump.

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CC089D

21. Remove the three Phillips-head screws securing

the oil pump; then remove the oil pump.

NOTE: It may be necessary to use an impact

driver to loosen the screws.

CD190

22. Remove the cap screws securing the oil strainer

cap; then remove the cap. Account for the

O-ring.

CC091D

23. Remove the two Phillips-head cap screws secur-

ing the strainer.

CC163D

Center Crankcase

Components

NOTE: This procedure cannot be done with the

engine/transmission in the frame. Complete

Removing procedures for Top-Side, Left-Side, and

Right-Side must precede this procedure.

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

Separating Crankcase

Halves

1. Remove the five right-side 6 mm cap screws

(one from inside the case) securing the crank-

case halves. Note the location of the differ-

ent-lengthed cap screws.

AT THIS POINT

To service center crankcase components only,

proceed to Separating Crankcase Halves.

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3

CC530D

2. Remove the seven left-side 6 mm cap screws

securing the crankcase halves. Note the location

of the wiring form. Note the location of the dif-

ferent-lengthed cap screws.

CC096D

3. Remove the three left-side 8 mm cap screws

(two from inside the case) securing the crank-

case halves. Note the location of the differ-

ent-lengthed cap screws.

CC097D

4. Remove the three right-side 8 mm cap screws

securing the crankcase halves.

CC098D

5. Using the Crankcase Separator/Crankshaft

Remover (p/n 0444-009) and tapping lightly

with a rubber mallet, separate the crankcase

halves. Account for two alignment pins, an

O-ring, and a washer.

NOTE: To keep the shaft/gear assemblies intact

for identification, tap the shafts toward the

left-side crankcase half when separating the

halves.

CC099D

CD227

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CF078A

CC102D

Disassembling

Crankcase Half

NOTE: For steps 1-10, refer to illustration

CC803C.

NOTE: To aid in assembling, it is recommended

that the assemblies are kept together and IN

ORDER.

CC803C

1. Remove the two shift shafts (E and H).

2. Remove the reverse shift cam (G) and spacer.

3. Disengage four forks from the gear shift cam

(F); then remove the reverse shifter fork.

CC105D

4. Remove the gear shift cam (F).

CC106D

5. Remove the three remaining forks noting their

positions for assembling purposes.

KEY

A. Crank Balancer Assembly

B. Crankshaft

C. Balancer Drive Gear with

Pin

D. Countershaft Assembly

E. Shift Shaft with Fork

F. Gear Shift Cam

G. Reverse Shift Cam

H. Shift Shaft with Three

Forks

I. Driveshaft Assembly

J. Output Shaft

K. Reverse Idle Gear

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3

6. Remove the reverse idle gear (K) w/shaft.

Account for the bushing, two washers, and the

circlip.

7. Simultaneously, remove the driveshaft assembly

(I) and countershaft assembly (D). Account for

the washer on the countershaft.

NOTE: For efficiency, if the driveshaft and/or

countershaft are not being serviced, it is prefera-

ble to leave them assembled. The technician

should use discretion and sound judgment.

8. Remove the front output shaft (J) and rear shaft

assemblies. Account for the bearing C-ring.

NOTE: Note the alignment marks on the crank

balancer driven gear and balancer drive gear to aid

in assembly.

CD826

9. Remove the driven gear from the crank balancer

assembly (A). Account for a key.

CD832

10. Remove the crank balancer assembly (A).

CD832B

NOTE: There is a flat spot on the crank balancer

to allow clearance past the crankshaft.

11. Using the Crankcase Separator/Crankshaft

Remover (p/n 0444-009), push the crankshaft

assembly out of the crankcase.

CC115D

AT THIS POINT

To service gear shift forks, see Servicing Center

Crankcase Components sub-section.

AT THIS POINT

To service the driveshaft and/or countershaft, see

Servicing Center Crankcase Components sub-sec-

tion.

AT THIS POINT

To service crankshaft assembly, see Servicing Cen-

ter Crankcase Components sub-section.

! CAUTION

Do not remove the remaining output shaft assembly

unless absolutely necessary. If the shaft is removed,

the shaft nut must be replaced with a new one and

the shaft must be re-shimmed.

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3-206

12. To remove the output shaft and gear, remove the

nut, slide the gear off the shaft (account for a

shim or shims), and drive the shaft out with a

plastic mallet (account for a shim or shims).

CC482D

Table of Contents

(Servicing Components)

NOTE: Critical engine/transmission specifica-

tions are located at the beginning of this section.

Servicing Top-Side Components……………………. 3-206

Valve Assembly…….…………….…………….……… 3-206

Piston Assembly ………..…………….……………. 3-209

Cylinder/Cylinder Head Assembly ………………. 3-211

Servicing Left-Side Components ..…………….…… 3-214

Recoil Starter…………….…………….……………. 3-214

Measuring Shift Fork (Thickness) …………..…… 3-217

Measuring Shift Fork Groove (Width) ………….. 3-218

Measuring Shift Fork To Groove

(Side Clearance)………..…………….……………. 3-218

Servicing Right-Side Components ………………. 3-218

Primary Clutch Assembly…………..………….…… 3-218

Inspecting Oil Pump…………….…………….…… 3-221

Servicing Center Crankcase Components………. 3-221

Secondary Gears…….………….…………….……… 3-221

Crankshaft Assembly.…………….…………….…… 3-222

Driveshaft…………….………………………..………… 3-224

Countershaft …………..…………….…………….…… 3-230

Servicing Top-Side

Components

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

VALVE ASSEMBLY

When servicing valve assembly, inspect valve seats,

valve stems, valve faces, and valve stem ends for

pits, burn marks, or other signs of abnormal wear.

NOTE: Whenever a valve is out of tolerance, it

must be replaced.

Cleaning/Inspecting Valve Cover

NOTE: If the valve cover cannot be trued, the cyl-

inder head assembly must be replaced.

1. Wash the valve cover in parts-cleaning solvent.

2. Place the valve cover on the Surface Plate (p/n

0644-016) covered with #400 grit wet-or-dry

sandpaper. Using light pressure, move the valve

cover in a figure eight motion. Inspect the seal-

ing surface for any indication of high spots. A

high spot can be noted by a bright metallic fin-

ish. Correct any high spots before assembly by

continuing to move the valve cover in a figure

eight motion until a uniform bright metallic fin-

ish is attained.

CC130D

! CAUTION

Do not remove an excessive amount of the sealing

surface or damage to the camshaft will result.

Always check camshaft clearance when resurfacing

the valve cover.

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3

Removing Valves

NOTE: Keep all valves and valve components as

a set. Note the original location of each valve set

for use during installation. Return each valve set to

its original location during installation.

1. Using a valve spring compressor, compress the

valve springs and remove the valve cotters.

Account for an upper spring retainer.

CC132D

2. Remove the valve seal and the lower remaining

spring seat. Discard the valve seal.

CC134D

CC136D

NOTE: The valve seals must be replaced.

3. Remove the valve springs; then invert the cylin-

der head and remove the valves.

Measuring Valve Stem Runout

1. Support each valve stem end with the V Blocks

(p/n 0644-022); then check the valve stem

runout using a dial indicator.

ATV-1082

2. Maximum runout must not exceed specifica-

tions.

Measuring Valve Stem

Outside Diameter

1. Using a micrometer, measure the valve stem

outside diameter.

2. Acceptable diameter range (intake valve) must

be within specifications.

3. Acceptable diameter range (exhaust valve) must

be within specifications.

Measuring Valve Face/Seat Width

1. Using a micrometer, measure the width of the

valve face.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

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ATV-1004

2. Acceptable width range must be within specifi-

cations.

Measuring Valve Face Radial

Runout

1. Mount a dial indicator on the surface plate; then

place the valve stem on a set of V blocks.

2. Position the dial indicator contact point on the

outside edge of the valve face; then zero the

indicator.

ATV1082A

3. Rotate the valve in the V blocks.

4. Maximum runout must not exceed specifica-

tions.

Measuring Valve Guide/Valve Stem

Deflection (Wobble Method)

1. Mount a dial indicator and base on the surface

plate; then place the cylinder head on the surface

plate.

2. Install the valve into the cylinder head; then

position the dial indicator contact point against

the outside edge of the valve face. Zero the indi-

cator.

CC131D

3. Push the valve from side to side; then from top

to bottom.

4. Maximum “wobble” deflection must not exceed

specifications.

Measuring Valve Guide

(Inside Diameter)

1. Insert a snap gauge 1/2 way down into each

valve guide bore; then remove the gauge and

measure it with a micrometer.

2. Acceptable inside diameter range must be

within specifications.

3. If a valve guide is out of tolerance, it must be

replaced.

Servicing Valves/Valve

Guides/Valve Seats

If valves, valve guides, or valve seats require servic-

ing or replacement, Arctic Cat recommends that the

components be taken to a qualified machine shop

for servicing.

Measuring Rocker Arm

(Inside Diameter)

1. Using a dial calipers, measure the inside diame-

ter of the rocker arm.

2. Acceptable inside diameter range must be

within specifications.

Measuring Rocker Arm Shaft

(Outside Diameter)

1. Using a micrometer, measure the outside diame-

ter of the rocker arm shaft.

! CAUTION

If valves are discolored or pitted or if the seating

surface is worn, the valve must be replaced. Do not

attempt to grind the valves or severe engine damage

may occur.

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3

2. Acceptable outside diameter range must be

within specifications.

Installing Valves

1. Apply grease to the inside surface of the valve

seals; then place a lower spring seat and valve

guide seal over each valve guide.

CC144D

2. Insert each valve into its original valve location.

3. Install the valve springs with the painted end of

the spring facing away from the cylinder head.

NOTE: If the paint is not visible, install the ends

of the springs with the closest wound coils toward

the head.

ATV-1011A

4. Place a spring retainer over the valve springs;

then using the valve spring compressor, com-

press the valve springs and install the valve cot-

ters.

CC132D

PISTON ASSEMBLY

NOTE: Whenever a piston, rings, or pin are out

of tolerance, they must be replaced.

Cleaning/Inspecting Piston

1. Using a non-metallic carbon removal tool,

remove any carbon buildup from the dome of

the piston.

2. Inspect the piston for cracks in the piston pin,

dome, and skirt areas.

3. Inspect the piston for seizure marks or scuffing.

Repair with #400 grit wet-or-dry sandpaper and

water or honing oil.

NOTE: If scuffing or seizure marks are too deep

to correct with the sandpaper, replace the piston.

4. Inspect the perimeter of each piston for signs of

excessive “blowby.” Excessive “blowby” indi-

cates worn piston rings or an out-of-round cylin-

der.

Removing Piston Rings

1. Starting with the top ring, slide one end of the

ring out of the ring-groove.

CC400D

2. Remove each ring by working it toward the

dome of the piston while rotating it out of the

groove.

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NOTE: If the existing rings will not be replaced

with new ones, note the location of each ring for

proper installation. When installing new rings,

install as a complete set only.

Cleaning/Inspecting Piston Rings

1. Take an old piston ring and snap it into two

pieces; then grind the end of the old ring to a 45°

angle and to a sharp edge.

2. Using the sharpened ring as a tool, clean carbon

from the ring-grooves. Be sure to position the

ring with its tapered side up.

Measuring Piston-Ring End Gap

(Installed)

1. Place each piston ring in the wear portion of the

cylinder. Use the piston to position each ring

squarely in the cylinder.

2. Using a feeler gauge, measure each piston-ring

end gap. Acceptable ring end gap must be

within specifications.

CC280D

Measuring Piston Pin (Outside

Diameter) and Piston-Pin Bore

1. Measure the piston pin outside diameter at each

end and in the center. If measurement is not

within specifications, the piston pin must be

replaced.

ATV-1070

2. Insert an inside dial indicator into the piston-pin

bore. The diameter must not exceed specifica-

tions. Take two measurements to ensure accu-

racy.

ATV-1069

Measuring Piston Skirt/

Cylinder Clearance

1. Measure the cylinder front to back in six places.

2. Measure the corresponding piston diameter at a

point 15 mm (0.6 in.) above the piston skirt at a

right angle to the piston-pin bore. Subtract this

measurement from the measurement in step 1.

The difference (clearance) must be within speci-

fications.

Installing Piston Rings

1. Install ring expander (4) in the bottom groove of

the piston; then install the thin oil rings (3) over

the expander making sure the expander ends do

not overlap. Stagger the end gaps of the upper

and lower thin oil rings according to the illustra-

tion.

NOTE: Note the direction of the exhaust side of

the piston (5) for correct ring end gap orientation.

! CAUTION

Improper cleaning of the ring-grooves by the use of

the wrong type of ring-groove cleaner will result in

severe damage to the piston.

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3

ATV-1085B

2. Install the compression rings (1 and 2) so the let-

ter on the top surface of each ring faces the

dome of the piston. Rotate the rings until the

ring end gaps are on directly opposite sides of

the piston (see illustration).

NOTE: The chrome (silver) ring should be

installed in the top position.

726-306A

CYLINDER/CYLINDER HEAD

ASSEMBLY

NOTE: If the cylinder/cylinder head assembly

cannot be trued, they must be replaced.

Cleaning/Inspecting Cylinder Head

1. Using a non-metallic carbon removal tool,

remove any carbon buildup from the combus-

tion chamber being careful not to nick, scrape,

or damage the combustion chamber or the seal-

ing surface.

2. Inspect the spark plug hole for any damaged

threads. Repair damaged threads using a

“heli-coil” insert.

3. Place the cylinder head on the surface plate cov-

ered with #400 grit wet-or-dry sandpaper. Using

light pressure, move the cylinder head in a fig-

ure eight motion. Inspect the sealing surface for

any indication of high spots. A high spot can be

noted by a bright metallic finish. Correct any

high spots before assembly by continuing to

move the cylinder head in a figure eight motion

until a uniform bright metallic finish is attained.

CC128D

Measuring Cylinder Head

Distortion

1. Remove any carbon buildup in the combustion

chamber.

2. Lay a straightedge across the cylinder head; then

using a feeler gauge, check the distortion factor

between the head and the straightedge.

3. Maximum distortion must not exceed specifica-

tions.

CC141D

! CAUTION

Incorrect installation of the piston rings will result in

engine damage.

! CAUTION

The cylinder head studs must be removed for this

procedure.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

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Cleaning/Inspecting Cylinder

1. Wash the cylinder in parts-cleaning solvent.

2. Inspect the cylinder for pitting, scoring, scuff-

ing, warpage, and corrosion. If marks are found,

repair the surface using a cylinder hone (see

Honing Cylinder in this sub-section).

3. Place the cylinder on the surface plate covered

with #400 grit wet-or-dry sandpaper. Using light

pressure, move the cylinder in a figure eight

motion. Inspect the sealing surface for any indi-

cation of high spots. A high spot can be noted by

a bright metallic finish. Correct any high spots

before assembly by continuing to move the cyl-

inder in a figure eight motion until a uniform

bright metallic finish is attained.

CC129D

Inspecting Cam Chain Guide

1. Inspect cam chain guide for cuts, tears, breaks,

or chips.

2. If the chain guide is damaged, it must be

replaced.

Honing Cylinder

1. Using a slide gauge and a dial indicator or a

snap gauge, measure the cylinder bore diameter

in three locations from top to bottom and again

from top to bottom at 90° from the first mea-

surements for a total of six measurements. The

trueness (out-of-roundness) is the difference

between the highest and lowest reading. Maxi-

mum trueness (out-of-roundness) must not

exceed specifications.

CC127D

2. Wash the cylinder in parts-cleaning solvent.

3. Inspect the cylinder for pitting, scoring, scuff-

ing, and corrosion. If marks are found, repair the

surface using a ball hone.

NOTE: To produce the proper 60° cross-hatch

pattern, use a low RPM drill (600 RPM) at the rate

of 30 strokes per minute. If honing oil is not avail-

able, use a lightweight petroleum-based oil. Thor-

oughly clean cylinder after honing using soap and

hot water. Dry with compressed air; then immedi-

ately apply oil to the cylinder bore. If the bore is

severely damaged or gouged, replace the cylinder.

CC390D

4. If any measurement exceeds specifications,

replace the cylinder.

Measuring Camshaft Runout

NOTE: If the camshaft is out of tolerance, it must

be replaced.

1. Place the camshaft on a set of V blocks; then

position the dial indicator contact point against

the shaft and zero the indicator.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

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3

CC283D

2. Rotate the camshaft and note runout; maximum

tolerance must not exceed specifications.

Measuring Camshaft Lobe Height

1. Using a calipers, measure each cam lobe height.

ATV1013A

2. The lobe heights must not exceed minimum

specifications.

Inspecting Camshaft Bearing

Journal

1. Inspect the bearing journal for scoring, seizure

marks, or pitting.

2. If excessive scoring, seizure marks, or pitting is

found, the cylinder head assembly must be

replaced.

Measuring Camshaft to

Cylinder Head Clearance

1. Remove the adjuster screws and jam nuts.

CC005D

2. Place a strip of plasti-gauge in each of the cam-

shaft lands in the cylinder head.

3. Place the valve cover on the cylinder head and

secure with the valve cover cap screws. Tighten

securely.

NOTE: Do not rotate the camshaft when measur-

ing clearance.

4. Remove the cap screws securing the valve cover

to the cylinder; then remove the valve cover and

camshaft.

CC003D

5. Match the width of the plasti-gauge with the

chart found on the plasti-gauge packaging to

determine camshaft to cylinder head and valve

cover clearance.

CC145D

6. If clearance is excessive, measure the journals of

the camshaft.

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CC287D

NOTE: If the journals are worn, replace the cam-

shaft; then measure the clearance again. If it is still

out of tolerance, replace the cylinder head.

Inspecting Camshaft Automatic

Decompression Spring/Unloader

Assembly

1. Inspect the spring, weights, and unloader for

damage and freedom of movement.

CF061A

NOTE: With the weight extended, the unloader

flat should be even with the camshaft journal.

CF061

NOTE: When the weight is released, the spring

should return the assembly to the “unload” posi-

tion with the unloader extending above the cam-

shaft journal.

CF060A

2. If damaged, the camshaft must be replaced.

Servicing Left-Side

Components

RECOIL STARTER

0737-034

Removing/Disassembling

1. Remove the cap screws securing the recoil

starter assembly to the left-side cover; then

remove the starter.

! WARNING

Always wear safety glasses when servicing the

recoil starter.

KEY

1. Recoil Starter

Assy

2. Reel

3. Spiral Spring

4. Ratchet Assy

5. Ratchet

6. Ratchet Guide

7. Nut

8. Rope Assy

9. Cap Screw

10. Starter Cup

11. Nut

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3

CC039D

2. Rotate the reel counterclockwise until the notch

of the reel is near the rope guide in the case.

Guide the rope into the notch and slowly allow

the reel to retract until all spiral spring tension is

released.

B600D

3. Remove the nut.

B601D

4. Slowly release the friction plate and lift the plate

with ratchet guide free of the recoil case; then

remove the ratchet guide from the friction plate.

B602D

5. Remove the spring cover, spring, and shaft.

B603D

6. Remove the ratchet and account for the pin.

B604D

7. Carefully lift the reel from the case making sure

the spring does not accidentally disengage from

the case.

! WARNING

During the disassembly procedure, continuous

downward pressure must be exerted on the reel so it

does not accidentally disengage and cause injury.

! CAUTION

During the disassembly procedure, make sure all

spring tension is released before continuing.

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3-216

B605D

8. Remove the protective cover from the starter

handle and pull the rope out of the handle; then

untie the knot in the rope and remove the han-

dle.

NOTE: Do not remove the spiral spring unless

replacement is necessary. It should be visually

inspected in place to save time. If replacement is

necessary, follow steps 9-10.

9. Remove the spiral spring from the case by lift-

ing the spring end up and out. Hold the remain-

der of the spring with thumbs and alternately

release each thumb to allow the spring to gradu-

ally release from the case.

10. Unwind the rope from the reel and remove the

rope.

Cleaning and Inspecting

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all components.

2. Inspect the springs and ratchet for wear or dam-

age.

3. Inspect the reel and case for cracks or damage.

4. Inspect the shaft for wear, cracks, or damage.

5. Inspect the rope for breaks or fraying.

6. Inspect the spiral spring for cracks, crystalliza-

tion, or abnormal bends.

7. Inspect the handle for damage, cracks, or deteri-

oration.

Assembling/Installing

1. If removed, insert the spiral spring into the case

with the outer end of the spring around the

mounting lug in the case; then wind it in a coun-

terclockwise direction until the complete spring

is installed.

NOTE: The spiral spring must seat evenly in the

recoil case.

B606D

2. Insert the rope through the hole in the reel and

tie a knot in the end; then wrap the rope counter-

clockwise around the reel leaving approximately

50 cm (20 in.) of rope free of the reel.

3. Apply low-temperature grease to the spring and

hub.

4. Thread the end of the rope through the guide

hole of the case; then thread the rope through the

handle and secure it with a double knot. Install

the protective cover into the handle.

5. Align the inner hook of the spiral spring with the

notch in the reel.

B605D

6. Install the ratchet onto its spring making sure the

end is properly installed on the reel.

! WARNING

Care must be taken when lifting the recoil free of the

case. Wear safety glasses to avoid injury.

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3

B604D

7. Install the shaft, spring, and the spring cover.

B603D

8. Install the friction plate with the ratchet guide

fitting into the ratchet.

B602D

9. While pushing down on the reel, install the nut.

Tighten securely.

B601D

10. With the 50 cm (20 in.) of rope exposed, hook

the rope in the notch of the reel.

11. Rotate the reel four turns counterclockwise; then

release the rope from the notch and allow the

rope to retract.

12. Pull the rope out two or three times to check for

correct tension.

NOTE: Increasing the rotations in step 11 will

increase spring tension.

13. Place the recoil starter assembly into position on

the left-side cover; then tighten the cap screws

to specifications.

CC039D

MEASURING SHIFT FORK

(Thickness)

NOTE: Whenever a shift fork is out of tolerance,

replacement is necessary.

1. Using a calipers, in turn measure the thickness

of the machined tip of each shift fork.

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3-218

CC296D

2. Shift fork thickness must be within specifica-

tions.

MEASURING SHIFT FORK GROOVE

(Width)

1. Using a calipers, in turn measure the width of

each shift fork groove.

CC288D

2. Shift fork groove width must be within specifi-

cations.

MEASURING SHIFT FORK TO

GROOVE (Side Clearance)

1. In turn, insert each shift fork into its groove.

2. Using a feeler gauge, measure the clearance

between the shift fork and the groove.

CC292D

3. Shift fork to groove side clearance must be

within specifications.

Servicing Right-Side

Components

NOTE: Whenever a part is worn excessively,

cracked, damaged in any way, or out of tolerance,

replacement is necessary.

PRIMARY CLUTCH ASSEMBLY

(Inspecting/Measuring/Assembling)

NOTE: Prior to inspecting and measuring com-

ponents, it is recommended that all components

be removed from the primary gear assembly and

be cleaned.

NOTE: When removing components from the pri-

mary gear assembly, account for the bushing that

fits into the primary gear.

CC239D

Inspecting/Measuring Clutch

Driven Plate Warpage

1. Inspect each driven plate for warpage and burn

marks.

2. In turn place each driven plate on the surface

plate; then using a feeler gauge, measure

warpage in several locations.

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3

CC245D

3. Maximum driven plate warpage must not

exceed specifications.

Measuring Clutch Drive Plate

(Fiber) Thickness

1. Using a calipers, in turn measure the thickness

of each drive plate in several locations.

CC243D

2. Drive plate thickness must be within minimum

specifications.

3. If the fiber plate tabs are damaged, the plate

must be replaced.

4. Inspect the clutch sleeve hub for grooves or

notches. If grooves or notches are present,

replace the hub.

Inspecting Centrifugal Clutch Shoe

1. Inspect the clutch shoe for uneven wear, chips,

cracks, or discoloration.

2. Inspect the depth of the grooves in the clutch

shoes. If any shoe is worn to the bottom of the

groove, replace the complete set.

ATV1014

Inspecting Centrifugal Clutch

Housing

1. Inspect the clutch housing for burns, marks,

scuffs, cracks, scratches, or uneven wear.

2. If the housing is damaged in any way, the hous-

ing must be replaced.

Inspecting Primary One-Way Drive

1. Insert the drive into the centrifugal clutch hous-

ing.

2. Rotate the inner race by hand and verify the

inner race rotates only one direction.

3. If the inner race is locked in place or rotates both

directions, the drive assembly must be replaced.

Assembling Primary Clutch

737-731A

1. Place the clutch hub upside down into the pri-

mary gear assembly.

! CAUTION

Always replace clutch shoes as a complete set or

severe imbalance could occur.

KEY

1. Pressure Disc

2. Driven Plate

3. Drive Plate

4. Sleeve Hub

5. Primary Gear Assy

6. Washer

7. Washer

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CC920

2. Alternately install the drive plates and driven

plates onto the hub (starting with and ending

with a drive plate) making sure the tabs with the

notches are all in line with each other.

CF044A

NOTE: When installing the driven plates for ease

of installation, make sure they are placed onto the

hub with the rounded side of the plates directed

down.

CF045A

3. Install the pressure plate onto the hub making

sure the alignment dots are correctly positioned.

CF047A

4. Place the primary gear assembly w/clutch hub

assembly in one hand, place the other hand on

top of the clutch hub assembly, and flip the

assembly over; then lift the primary gear assem-

bly off the clutch hub assembly being careful

not to disturb the drive plate notched tab orienta-

tion.

CC924

5. Place the primary gear assembly on a clean, flat

surface; then install the primary washer into the

assembly.

CC239D

6. Place the clutch hub assembly into the primary

gear assembly.

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3

CC926

NOTE: The primary clutch assembly is now com-

pletely assembled for installation.

INSPECTING OIL PUMP

1. Inspect the pump for damage.

2. It is inadvisable to remove the screw securing

the pump halves. If the oil pump is damaged, it

must be replaced.

CD989A

Servicing Center

Crankcase Components

NOTE: Whenever a part is worn excessively,

cracked, damaged in any way, or out of tolerance,

replacement is necessary.

SECONDARY GEARS

NOTE: When checking and correcting secondary

gear backlash and tooth contact, the universal

joint must be secured to the front shaft or false

measurements will occur.

Checking Backlash

NOTE: The rear shaft and bevel gear must be

removed for this procedure. Also, always start with

the original shims on the rear shaft.

1. Place the left-side crankcase cover onto the

left-side crankcase half to prevent runout of the

secondary transmission output shaft.

2. Install the secondary driven output shaft assem-

bly onto the crankcase.

3. Mount the indicator tip of the dial indicator on

the secondary driven bevel gear.

4. While rocking the driven bevel gear back and

forth, note the maximum backlash reading on

the gauge.

5. Acceptable backlash range is 0.05-0.33 mm

(0.002-0.013 in.).

Correcting Backlash

NOTE: If backlash measurement is within the

acceptable range, no correction is necessary.

1. If backlash measurement is less than specified,

remove an existing shim, measure it, and install

a new thinner shim.

2. If backlash measurement is more than specified,

remove an existing shim, measure it, and install

a thicker shim.

NOTE: Continue to remove, measure, and install

until backlash measurement is within tolerance.

Note the following chart.

! CAUTION

The clutch hub and the pressure plate must be

seated in the proper position. If any of the incorrect

positions are used, the hub and plate will have clear-

ance between them and they will not operate prop-

erly.

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3-222

Checking Tooth Contact

NOTE: After correcting backlash of the second-

ary driven bevel gear, it is necessary to check

tooth contact.

1. Remove the secondary driven output shaft

assembly from the left-side crankcase half.

2. Clean the secondary driven bevel gear teeth of

old oil and grease residue.

3. Apply a thin, even coat of a machinist-layout

dye to several teeth of the gear.

4. Install the secondary driven output shaft assem-

bly.

5. Rotate the secondary driven bevel gear several

revolutions in both directions.

6. Examine the tooth contact pattern in the dye and

compare the pattern to the illustrations.

ATV-0103

ATV-0105

ATV-0104

Correcting Tooth Contact

NOTE: If tooth contact pattern is comparable to

the correct pattern illustration, no correction is

necessary.

If tooth contact pattern is comparable to an incorrect

pattern, correct tooth contact according to the fol-

lowing chart.

NOTE: To correct tooth contact, steps 1 and 2

(with NOTE) of “Correcting Backlash” must be fol-

lowed and the above “Tooth Contact/Shim Correc-

tion” chart must be consulted.

CRANKSHAFT ASSEMBLY

Measuring Connecting Rod

(Small End Inside Diameter)

1. Insert a snap gauge into the upper connecting

rod small end bore; then remove the gauge and

measure it with micrometer.

Backlash Measurement Shim Correction

Under 0.05 mm (0.002 in.) Decrease Shim

Thickness

At 0.05-0.33 mm

(0.002-0.013 in.)

No Correction Required

Over 0.33 mm (0.013 in.) Increase Shim

Thickness

Tooth Contact Shim Correction

Contacts at Top Decrease Shim Thickness

Contacts at Root Increase Shim Thickness

! CAUTION

After correcting tooth contact, backlash must again

be checked and corrected (if necessary). Continue

the correcting backlash/correcting tooth contact

procedures until they are both within tolerance val-

ues.

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3

CC290D

2. Maximum diameter must not exceed specifica-

tions.

Measuring Connecting Rod

(Small End Deflection)

1. Place the crankshaft on a set of V blocks and

mount a dial indicator and base on the surface

plate. Position the indicator contact point against

the center of the connecting rod small end jour-

nal.

2. Zero the indicator and push the small end of the

connecting rod away from the dial indicator.

3. Maximum deflection must not exceed specifica-

tions.

Measuring Connecting Rod

(Big End Side-to-Side)

1. Push the lower end of the connecting rod to one

side of the crankshaft journal.

2. Using a feeler gauge, measure the gap between

the connecting rod and crankshaft journal.

CC289D

3. Acceptable gap range must be within specifica-

tions.

Measuring Connecting Rod

(Big End Width)

1. Using a calipers, measure the width of the

connecting rod at the big-end bearing.

2. Acceptable width range must be within specifi-

cations.

Measuring Crankshaft (Runout)

1. Place the crankshaft on a set of V blocks.

2. Mount a dial indicator and base on the surface

plate. Position the indicator contact at point 1 of

the crankshaft.

ATV-1074

3. Zero the indicator and rotate the crankshaft

slowly.

4. Maximum runout must not exceed specifica-

tions.

NOTE: Proceed to check runout on the other end

of the crankshaft by positioning the indicator con-

tact at point 2 and following steps 2-4.

Measuring Crankshaft

(Web-to-Web)

1. Using a calipers, measure the distance from the

outside edge of one web to the outside edge of

the other web.

! CAUTION

Care should be taken to support the connecting

rod when rotating the crankshaft.

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3-224

ATV-1017

2. Acceptable width range must be within specifi-

cations.

DRIVESHAFT

Disassembling

1. In order, remove the reverse dog, circlip,

washer, reverse driven gear, and bushing from

the driveshaft.

CC228D

CC227D

CC226D

CC225D

CC224D

NOTE: The teeth on the bushing must face the

1st driven gear.

2. Remove the 1st driven washer (right side); then

remove the 1st driven gear from the driveshaft.

CC223D

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3

CC222D

3. Remove the 1st driven bushing; then remove the

1st driven washer (left side) from the shoulder

of the splined shaft. Remove the 4th driven cir-

clip.

CC221D

CC220D

CC508D

4. Remove the 4th driven gear from the driveshaft.

Note the four small dogs facing toward the 3rd

driven gear for assembling purposes.

CC219D

5. Remove the 3rd driven circlip; then remove the

3rd driven lock washer (right side) from the

driveshaft.

CC216D

CC215D

6. Remove the 3rd driven gear from the driveshaft.

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CC214D

7. Remove the 3rd driven bushing from the drive-

shaft. Note the location of the oil feed hole in

the bushing and the matching oil supply hole in

the driveshaft for assembling purposes.

CD248

8. Remove the 3rd driven lock washer (left side)

from the driveshaft. Note the tabs facing toward

the 5th driven gear for assembling purposes.

CD247A

9. Remove the next 3rd driven lock washer (left

side) by rotating it out of the groove. Note the

groove closest to the 5th driven gear for assem-

bling purposes.

CC211D

10. Remove the 5th driven gear from the driveshaft.

CC210D

11. In order, remove the 2nd driven circlip, washer,

gear, and bushing from the driveshaft.

CC209D

CC208D

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3

CC207D

CC206D

Assembling

737-733A

1. In order, install the 2nd driven bushing, gear,

washer, and circlip onto the driveshaft.

CC206D

CC207D

CC208D

CC209D

2. Install the 5th driven gear onto the driveshaft.

AT THIS POINT

To service secondary gears, see Servicing Center

Crankcase Components in this sub-section.

KEY

1. Driveshaft

2. 1st Driven Gear

3. 2nd Driven Gear

4. 3rd Driven Gear

5. 3rd Driven Bushing

6. 4th Driven Gear

7. 5th Driven Gear

8. Reverse Driven Gear

9. Reverse Dog

10. Reverse Driven Bushing

11. 3rd Driven Lock Washer —

Right

12. 3rd Driven Lock Washer —

Left

13. 3rd Driven Lock Washer —

Left

14. Driveshaft Bearing

15. 1st Driven Bushing

16. 2nd Driven Bushing

17. 2nd Driven Circlip

18. 3rd Driven Circlip

19. 4th Driven Circlip

20. Reverse Driven Washer

21. 1st Driven Washer — Left

22. 1st Driven Washer — Right

23. 2nd Driven Washer

24. Reverse Driven Circlip

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CC210D

3. Install the 3rd driven lock washer (left side).

Lock it into the groove closest to the 5th driven

gear (as noted in disassembling) by rotating it

when it is in the groove.

CC211D

4. Install the next 3rd driven lock washer (left side)

onto the driveshaft making sure the tabs are fac-

ing toward the 5th driven gear. Make sure the

tabs intertwine with the 3rd driven lock washer.

CD247A

5. Install the 3rd driven bushing onto the driveshaft

making sure the oil feed hole in the bushing

aligns with the appropriate oil supply hole in the

driveshaft (as noted in disassembling).

CD248

6. In order, install the 3rd driven gear, lock washer

(right side), and circlip onto the driveshaft.

CC214D

CC215D

! CAUTION

It is very important to assure the oil feed hole in the

bushing and oil supply hole in the driveshaft align. If

not aligned, engine damage will result.

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3

CC216D

7. Install the 4th driven gear onto the driveshaft

making sure the four small dogs are facing

toward the 3rd driven gear as noted in disassem-

bling; then secure with the circlip.

CC219D

CC508D

8. Install the 1st driven washer (left side) onto the

shoulder of the splined shaft; then install the 1st

driven bushing and gear.

CC220D

CC221D

CC222D

9. Install the 1st driven washer (right side) on the

shaft making sure it lines up with the groove in

the shaft; then turn the washer locking it on the

shaft.

CC223D

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3-230

10. Slide the reverse driven gear bushing onto the

shaft making sure the oil port in the bushing

aligns with the oil port on the shaft.

CC842

11. Move the washer in the shaft groove until the

notches in the washer align with the tabs on the

bushing; then slide the bushing up tight against

the washer.

CC843

12. In order, install the reverse driven gear, washer,

circlip, and reverse dog onto the driveshaft.

CC225D

CC226D

CC227D

CC228D

NOTE: The driveshaft is now completely assem-

bled for installation.

COUNTERSHAFT

Disassembling

1. Remove the 2nd drive gear and washer from the

countershaft.

! CAUTION

Failure to align the oil ports will result in serious

engine damage.

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3

CD242

2. Remove the 5th drive gear from the counter-

shaft.

CC203D

3. Remove the 5th drive washer and 5th drive cir-

clip from the countershaft.

CC201D

CC200D

4. Remove the 3rd drive gear from the countershaft.

5. Remove the 4th drive circlip securing the 4th

drive gear on the countershaft; then remove the

first 4th drive washer and 4th drive gear.

Account for the bushing.

CC199D

6. Remove the other 4th drive washer from the

countershaft.

Assembling

738-294A

1. Install the 4th drive washer onto the counter-

shaft.

2. Install the 4th drive gear making sure the bush-

ing is in position; then install the other 4th drive

washer onto the countershaft. Secure with the

circlip.

KEY

1. Countershaft

2. 2nd Drive Gear

3. 3rd Drive Gear

4. 4th Drive Gear

5. 5th Drive Gear

6. 5th Drive Washer

7. 5th Drive Bushing

8. Shaft Bearing

9. 4th Drive Bushing

10. 4th Drive Circlip

11. 5th Drive Circlip

12. Shaft Bearing

13. Retainer

14. 4th Drive Washer

15. Washer

16. Reverse Idle Shaft

17. Reverse Idle Gear

18. Reverse Idle Bushing

19. Screw

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CC199D

3. Install the 3rd drive gear; then install the 5th

drive circlip onto the countershaft.

CC200D

4. Install the 5th drive washer and 5th drive gear

onto the countershaft.

CC201D

5. Install the 2nd drive gear and washer onto the

countershaft.

CD242

NOTE: The countershaft is now completely

assembled for installation.

Assembling Crankcase

Half

NOTE: For ease of assembly, install components

on the left-side crankcase half.

NOTE: If the output shaft and gear were

removed, make sure that the proper shim is

installed.

1. To install the output shaft and gear, place the

shaft into position with proper shims, slide the

gear onto the shaft, and secure with a new nut

tightened to specifications.

CC117D

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3

CC116D

2. Apply a liberal amount of engine oil to the

crankshaft bearing. Using a propane torch, heat

the bearing until the oil begins to smoke; then

slide the crankshaft assembly into place.

CC688

CC689

NOTE: If heating the bearing is not possible, the

crankshaft can be installed using a crankshaft

installing tool.

3. Install the crank balancer.

NOTE: It will be necessary to rotate the crank

balancer until the counterweight is directed away

from the crankshaft; then rotate the crankshaft

clockwise into the journal area to allow the bal-

ancer to be fully seated.

CD832A

4. With the key in position, slide the driven gear

onto the crank balancer making sure the timing

marks are aligned.

CD826

5. Place the bearing C-ring into position in the

crankcase; then install the front output shaft and

rear shaft assemblies.

CD268A

6. Simultaneously, install the driveshaft and coun-

tershaft assemblies making sure the washer is on

the countershaft.

! CAUTION

The bearing pins must be positioned into the crank-

case correctly or damage to the crankcase may

occur.

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CD232A

7. Install the reverse idle shaft with circlip making

sure the oil hole in the shaft is facing downward;

then install a washer, bushing, reverse idle gear,

and a washer.

CF055

CC231D

8. Place each of the four shift forks into its respec-

tive gear or dog as noted during disassembling;

then install the gear shift cam.

CC107D

CC106D

9. Engage the four forks to the gear shift cam; then

install the reverse shift cam and spacer.

CC105D

CC103D

10. Install the two gear shift shafts; then verify that

the two crankcase half alignment pins are in

place.

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3

CC104D

NOTE: Prior to joining crankcase halves, turn the

shift cam to ensure all gears shift properly.

Joining Crankcase

Halves

1. Place the O-ring in the left-side crankcase half

and verify that the washer is on the idler shaft;

then apply Three Bond Sealant to the mating

surfaces. Place the right-side half onto the

left-side half.

CC234DA

2. Using a plastic mallet, lightly tap the case halves

together until cap screws can be installed.

3. From the left side, install the three case half 8

mm cap screws (two inside the case); then

tighten only until snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

CC098D

4. From the right side, install the three case half 8

mm cap screws; then tighten only until snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

CC097D

5. From the left side, install the seven case half 6

mm cap screws noting the location of the wiring

form; then tighten only until snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

CC096D

6. From the right side, install the five case half 6

mm cap screws (one inside the case); then

tighten only until snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

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CC095D

7. In a crisscross/case-to-case pattern, tighten the 8

mm cap screws (from steps 3-4) until the halves

are correctly joined; then tighten to specifications.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

8. In a crisscross/case-to-case pattern, tighten the 6

mm cap screws (from steps 5-6) to specifications.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

Installing Right-Side

Components

A. Oil Strainer/Oil Pump

B. Gear Shift Shaft

1. Place the oil strainer into position beneath the

crankcase and tighten securely with the Phil-

lips-head cap screws.

CC163D

2. Place the strainer cap into position on the

strainer making sure a new O-ring is properly

installed and secure with the cap screws; then

install and tighten the oil drain plug to specifica-

tions.

CC091D

3. Place the oil pump into position in the crankcase

and secure with the three Phillips-head screws

coated with blue Loctite #243. Tighten to speci-

fications.

CC090D

4. Place the pin and washer into position on the oil

pump shaft, install the oil pump driven gear, and

secure with the circlip.

CC088D

5. Place the gear shift cam plate and guide onto the

gear shift cam making sure the alignment pin

was installed. Secure assembly with the cap

screw coated with blue Loctite #243. Tighten

securely.

! CAUTION

After completing center crankcase components,

proceed to Installing Right-Side Components, to

Installing Left-Side Components, and to In- stalling

Top-Side Components.

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3

CF073A

CC164D

6. Attach the spring to the gear shift cam stopper

arm.

CC086D

CF072A

7. Install the gear shift shaft.

CC085D

C. Primary Driven Gear

D. Primary Driven Clutch

E. Primary Drive Clutch Shoe

NOTE: Steps 1-7 in the preceding sub-section

must precede this procedure.

8. Install the spacer, pin, and oil pump drive gear

onto the crank balancer shaft making sure the

shoulder of the drive gear is facing inward

toward the crankcase; then secure with the

washer and nut tightened to specifications.

CF070A

CD481

9. Place the chain into the crankcase; then secure it

from the top side with a wire for ease of assem-

bling.

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CC079D

10. Install the primary driven washers onto the

driveshaft and crankshaft.

CD198B

11. Simultaneously, place the primary clutch assem-

bly and the starter clutch housing on their

respective shafts making sure the sleeve is prop-

erly positioned in the primary assembly.

CC078D

NOTE: Note the alignment mark scribed on the

primary driven gear assembly during disassembly.

12. Using the Clutch Sleeve Hub Holder (p/n

0444-007), install the nut and washer. Tighten to

specifications.

CD479

13. Place the primary drive one-way clutch into the

starter clutch housing noting the word OUT-

SIDE for proper placement.

CD482

14. Install the clutch shoe and washer; then secure

with the starter clutch shoe nut (left-hand

threads). Tighten to specifications; then using a

center punch, stake the nut.

15. Install the release roller assembly making sure

the four springs are in position; then using a

crisscross pattern, tighten the four cap screws

securely.

NOTE: Tighten the four roller assembly cap

screws in a crisscross pattern making sure there

is no clearance between the clutch plates when

secured.

! CAUTION

The clutch sleeve hub and the pressure plate must

be seated in the proper position. If any of the incor-

rect positions are used, the hub and plate will have

clearance between them and they will not operate

properly.

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3

CC074D

16. Install the clutch release arm and release roller

guide making sure the release roller and guide

are aligned.

CD166A

17. Secure the clutch release arm with the cap screw

coated with blue Loctite #243. Tighten securely.

CC073D

18. Install the reverse cam stopper housing and gas-

ket making sure the stopper and spring are cor-

rectly positioned. Tighten to specifications.

CD494

F. Water Pump

G. Oil Filter

NOTE: Steps 1-18 of the preceding sub-sections

must precede this procedure.

NOTE: Lubricate all internal components with

5W-30 oil prior to installing the right-side cover.

19. Place the water pump drive joint into position on

the water pump shaft making sure the pin is

properly positioned.

CF067

NOTE: Care should be taken that the alignment

pins are installed in the right-side cover.

20. Place the gasket and right-side cover into posi-

tion making sure the release roller guide remains

correctly positioned and that the water pump

drive adapter aligns; then install the fifteen cap

screws. Note the proper location of the long cap

screw with rubber washer.

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CF039A

21. Tighten the cap screws in a crisscross pattern to

specifications.

22. Place the water pump cover onto the right-side

cover making sure the new O-ring is properly

positioned. Tighten securely with the three cap

screws.

CD910A

CC027D

23. Using the oil filter wrench, install a new oil fil-

ter.

CC067D

24. Install the coolant hose on the water pump and

secure with the clamp.

Installing Left-Side

Components

A. Idle Gear Assembly

B. Magneto Rotor

1. Place the starter into position on the crankcase

and secure with the cap screws. Note the posi-

tion of the wiring form.

CC065D

2. Place the shift-indicator sending unit into posi-

tion making sure the contacts and springs are

inside the case and a well-oiled O-ring is properly

positioned. Secure with Phillips-head screws.

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3

CC049D

CC048D

3. Install the starter idle gear pin into the crankcase;

then with the beveled side of the idle gear facing

the crankcase, install the idle gear and spacer.

CD138

4. Place the bushing onto the output shaft; then

install the driven gear and washer.

CC063D

5. Install the spacer onto the driveshaft.

CC258D

6. Place the splined bushing onto the driveshaft

making sure the oil hole of the splined bushing

aligns with the oil hole of the driveshaft.

CF038A

7. In turn on the driveshaft, install the #1 drive

gear and washer; then secure with the circlip.

CC059D

8. Place the select sliding dog gear and washer

onto the driveshaft; then place the #2 drive gear

onto the driveshaft making sure the bushing and

washer follow on the driveshaft.

! CAUTION

It is important that the oil holes in the splined bush-

ing and driveshaft align. If they are not aligned,

major damage will occur from lack of lubrication.

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CC061D

9. Place the idle gear spacer and idle gear onto the

countershaft.

CC262D

CC060D

10. Place a washer on the driveshaft, the counter-

shaft, and the driven shaft.

CF075A

11. With the slot in the shift shaft assembly facing

upward, place the assembly on the fixed shaft.

CD147

12. Place the left shaft washer on the shift shaft.

CC333D

13. With the shift fork peg positioned in the shift

shaft assembly slot, install the shift fork in the

select sliding dog gear.

CC329D

14. Slide the shift fork shaft through the shift fork

and into the crankcase boss.

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3

CC330D

15. Insert the pin into the starter gear assembly boss

in the crankcase; then install starter idler gear

#1.

CD136

16. Place a washer on each end of the starter gear

assembly and install in the crankcase.

17. Place a thrust washer onto the crankshaft; then

install the starter clutch gear assembly onto the

crankshaft. Place the key into its notch.

CD155

18. Place the rotor/flywheel into position on the

crankshaft; then install the nut on the crankshaft

and tighten until the rotor/flywheel is properly

seated. Tighten to specifications.

CD444

19. Install the two alignment pins into the left crank-

case half.

NOTE: Make sure that four washers, one bush-

ing, and two alignment pins are in place.

CD134A

C. Cover

D. Speed Sensor Housing

E. Hi/Low Shifter Assembly

F. Recoil Starter

NOTE: Steps 1-19 in the preceding sub-section

must precede this procedure.

20. Place the gasket and left-side cover into position

on the crankcase.

NOTE: It may be necessary to push or pull the

splined Hi/Low range shift shaft to establish

cover/crankcase mating.

21. Install the fourteen cap screws to secure the

left-side cover. Do not tighten at this time. Note

the location of the long cap screw with rubber

washer.

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CF037A

22. Place the starter cup into position on the crank-

shaft making sure a new, lubricated O-ring is

inside the cup. Tighten the flange nut to specifi-

cations.

CC041D

23. In a crisscross pattern, tighten the cap screws

(from step 21) to specifications.

CC047D

24. Place the shift stop housing assembly into posi-

tion beneath the shift shaft housing making sure

the spring and stopper are correctly positioned.

Tighten to specifications.

CC054D

25. Place the speed sensor housing and gasket into

position and secure with the two cap screws.

Tighten securely.

CD069

26. Install the inside circlip onto the hi/low range

shift shaft with the sharp side of the circlip fac-

ing the engine; then place the shift lever assem-

bly part way onto the shaft.

NOTE: Position the shift lever part way onto the

splines and verify the subtransmission is in hi

range. If not, shift into hi range.

CC045D

27. Pull up on the hi/low shift T-handle and guide

the T-handle stop pin into the hi range lever stop

plate slot; then slide the shift lever assembly the

rest of the way onto the shift shaft. Secure with

the outer circlip making sure the sharp side of

the circlip faces away from the hi/low-range

lever.

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3

CC044D

28. Place the recoil starter assembly into position on

the left-side cover; then tighten four cap screws

to specifications.

CC039D

Installing Top-Side

Components

A. Piston

B. Cylinder

0732-301

NOTE: If the piston rings were removed, install

them in this sequence.

A. Install ring expander (4) in the bottom groove

of the piston; then install the thin oil rings (3)

over the expander making sure the expander

ends do not overlap.

ATV-1085B

B. Stagger the end gaps of the upper and lower

thin oil rings according to the illustration.

NOTE: Note the direction of the exhaust side of

the piston (5) for correct ring end gap orientation.

ATV-1024

C. Install the compression rings (1 and 2) so the

letter on the top surface of each ring faces the

dome of the piston. Rotate the rings until the

ring end gaps are on directly opposite sides of

the piston (see illustration).

NOTE: The chrome (silver) ring should be

installed in the top position.

1. Install the piston on the connecting rod making

sure there is a circlip on each side and the open

end of the circlip faces upwards.

NOTE: The piston should be installed so the

arrow points toward the exhaust.

KEY

1. Cylinder

2. Stud Bolt

3. Nut

4. Cylinder Gasket

5. Pin

6. Water Hose Union

7. Cap Screw

8. O-Ring

! CAUTION

Incorrect installation of the piston rings will result in

engine damage.

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3-246

CC032D

2. Place the two alignment pins into position. Place

the cylinder gasket into position; then place a

piston holder (or suitable substitute) beneath the

piston skirt and square the piston in respect to

the crankcase.

CC025D

3. Lubricate the inside wall of the cylinder; then

using a ring compressor or the fingers, compress

the rings and slide the cylinder over the piston.

Route the cam chain up through the cylinder

cam chain housing; then remove the piston

holder and seat the cylinder firmly on the crank-

case.

CC024D

4. Loosely install the two nuts which secure the

cylinder to the crankcase.

NOTE: The two cylinder-to-crankcase nuts will

be tightened in step 10.

CC023D

5. Install the coolant hose onto the crankcase union

and tighten the clamp.

C. Cylinder Head

D. Valve Cover

0737-755

NOTE: Steps 1-5 in the preceding sub-section

must precede this procedure.

! CAUTION

The cylinder should slide on easily. Do not force the

cylinder or damage to the piston, rings, cylinder, or

crankshaft assembly may occur.

KEY

1. Cylinder Head Assy

2. Valve Guide

3. Dowel Pin

4. Cap Screw

5. Cap Screw

6. Cylinder Head Gasket

7. Dowel Pin

8. Cap Screw

9. Cap Screw

10. Stud Bolt

11. Stud Bolt

12. Stud Bolt

13. Cap Screw

14. Cap Screw

15. Nut

16. Nut

17. Gasket

18. Head Nut Gasket

19. Spark Plug

20. Inspection Cap

21. O-Ring

22. Cap Screw

23. Stud Bolt

24. Cylinder Head Plug

25. Intake Pipe Assy

26. O-Ring

27. Cap Screw

28. Clamp

29. Water Temperature Switch

Assy

30. Thermostat Cover

31. Thermostat

*Frost Plug

*Not Illustrated

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3

6. Place the chain guide into the cylinder.

CC022D

7. Place the head gasket into position on the cylin-

der. Place the alignment pins into position; then

place the head assembly into position on the cyl-

inder.

CC020D

CF057A

8. Install the four cylinder head cap screws with

copper washers (note the locations of the differ-

ent-lengthed cap screws). Tighten only until

snug.

CC272D

9. Loosely install the five cylinder head nuts.

CC018D

CC017D

10. In a crisscross pattern, tighten the four cylinder

head cap screws (from step 8) to 3.8 kg-m (27.5

ft-lb); then tighten the 8 mm nut (from step 9) to

2.5 kg-m (18 ft-lb). Using a crisscross pattern,

tighten the four 6 mm nuts (from step 9) to 1.1

kg-m (8 ft-lb). Tighten the two cylinder-to-

crankcase nuts (from step 4) securely.

11. With the timing inspection plug removed and

the chain held tight, rotate the crankshaft until

the piston is at top-dead-center.

12. With the alignment pin installed in the camshaft,

loosely place the cam sprocket (with the

recessed side facing the cam shaft lobes) onto

the camshaft. At this point, do not “seat” the

sprocket onto the shaft.

! CAUTION

Care should be taken that the bottom of the chain

guide is secured in the crankcase boss.

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732-307B

NOTE: At this point, oil the camshaft bearings,

cam lobes, and the three seating journals on the

cylinder.

13. With the cam lobes directed down (toward the

piston), maneuver the camshaft/sprocket assem-

bly through the chain and towards its seating

position; then loop the chain over the sprocket.

CC015D

NOTE: Note the position of the alignment marks

on the end of the camshaft. They must be parallel

with the valve cover mating surface. If rotating the

camshaft is necessary for alignment, do not allow

the chain and sprocket to rotate and be sure the

cam lobes end up in the down position.

CF030A

14. Seat the cam sprocket onto the camshaft making

sure the alignment pin in the camshaft aligns

with the smallest hole in the sprocket; then place

the camshaft/sprocket assembly onto the cylin-

der ensuring the following.

CD463

A. Piston still at top-dead-center.

B. Camshaft lobes directed down (toward the

piston).

C. Camshaft alignment marks parallel to the

valve cover mating surface.

D. Recessed side of the sprocket directed toward

the cam lobes.

E. Camshaft alignment pin and sprocket align-

ment hole (smallest) are aligned.

15. Place the tab-washer onto the sprocket making

sure it covers the pin in the alignment hole.

ATV-1027

! CAUTION

If any of the above factors are not as stated, go back

to step 11 and carefully proceed.

! CAUTION

Care must be taken that the tab-washer is installed

correctly to cover the alignment hole on the

sprocket. If the alignment pin falls out, severe

engine damage will result.

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3

CF013A

16. Install the first cap screw (threads coated with

red Loctite #271) securing the sprocket and

tab-washer to the camshaft. Tighten only until

snug.

CD464

17. Rotate the crankshaft until the second cap screw

securing the sprocket to the camshaft can be

installed; then install the cap screw (threads

coated with red Loctite #271) and tighten to

specifications. Bend the tab to secure the cap

screw.

CD465

18. Rotate the crankshaft until the first cap screw

(from step 16) securing the sprocket to the cam-

shaft can be addressed; then tighten to specifica-

tions. Bend the tab to secure the cap screw.

19. Place the C-ring into position in its groove in the

cylinder.

CC012D

20. Install the cylinder head plug in the cylinder

head with the opening of the plug directed

downward and toward the inside.

CD468

21. Place the cam chain tensioner guide into posi-

tion and secure with the cap screw and washer.

CC014D

22. Remove the cap screw from the end of the chain

tensioner; then using a flat-blade screwdriver,

rotate the adjuster screw inside the tensioner

clockwise until the screw bottoms.

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CD501

NOTE: The adjuster shaft will be drawn into the

tensioner as the adjuster screw is rotated clock-

wise. The adjuster shaft tension will be released in

step 24.

23. Place the chain tensioner adjuster assembly and

gasket into position on the cylinder and secure

with the two Allen-head cap screws.

CD469

CC010D

24. Using a flat-blade screwdriver, rotate the

adjuster screw inside the tensioner counter-

clockwise until all tension is released; then

install the cap screw into the end of the chain

tensioner.

CD470

CD471

25. Loosen the four adjuster screw jam nuts; then

loosen the four adjuster screws on the rocker

arms in the valve cover.

26. Apply a thin coat of Three Bond Sealant (p/n

0636-070) to the mating surfaces of the cylinder

head and valve cover.

CC275D

27. Place the valve cover into position.

NOTE: At this point, the rocker arms and

adjuster screws must not have pressure on them.

28. Install the four top side valve cover cap screws

with rubber washers; then install the remaining

cap screws. Tighten only until snug.

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3

CC003D

29. In a crisscross pattern starting from the center

and working outward, tighten the cap screws

(from step 28) securely.

30. Adjust valve/tappet clearance using the follow-

ing procedure.

NOTE: Use Valve Clearance Adjuster (p/n

0444-078) for this procedure.

A. Turn the engine over until the piston reaches

top dead center on the compression stroke.

B. Place the valve adjuster onto the jam nut

securing the tappet adjuster screw; then rotate

the valve adjuster dial clockwise until the end

is seated in the tappet adjuster screw.

CC528D

C. While holding the valve adjuster dial in

place, use the valve adjuster handle and

loosen the jam nut; then rotate the tappet

adjuster screw clockwise until friction is felt.

D. Align the valve adjuster handle with one of

the marks on the valve adjuster dial.

E. While holding the valve adjuster handle in

place, rotate the valve adjuster dial counter-

clockwise until specified valve/tappet clear-

ance is attained.

NOTE: Rotating the valve adjuster dial counter-

clockwise will open the valve/tappet clearance by

0.05 mm (0.002 in.) per mark.

F. While holding the adjuster dial at the proper

clearance setting, tighten the jam nut securely

with the valve adjuster handle.

31. Place the two tappet covers into position making

sure the proper cap screws are with the proper

cover. Tighten the cap screws securely.

CC001D

32. If removed, install the spark plug and tighten to

specifications.

Installing

Engine/Transmission

NOTE: Arctic Cat recommends that new gaskets

and O-rings be installed whenever servicing the

ATV.

1. From the left side, place the engine/transmission

into the frame; then move it rearward as far as

possible.

2. Raise the rear of the engine enough to engage

the front driveshaft into the splines of the front

drive output yoke; then slide the engine forward

as far as possible.

CD818

3. Raise the rear of the engine and place a block

under it; then install the propeller shaft and out-

put flange into the rear drive coupler.

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CD821

4. Remove the block from beneath the engine; then

align the rear drive flanges and secure with four

cap screws. Tighten to specifications.

CD824

5. Install the lower rear engine mounting

through-bolt, spacer, and washer; then install the

lower front engine mounting through-bolt,

spacer, and washer. Secure with the flange nuts.

Tighten to specifications.

CD809

6. Connect the crankcase breather vent hose and

secure with the clamp.

7. Connect the lower coolant hose to the water

pump housing and secure with the clamp.

CC124D

8. Connect the positive cable to the starter motor

and install the protective boot.

AR604D

9. Connect the battery ground (negative) cable to

the crankcase cover.

AR600D

10. Install the coil and secure with two cap screws;

then install the high tension lead on the spark

plug.

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3

CD814

11. Connect the upper coolant hose to the thermo-

stat housing and secure with the clamp.

CC121D

12. Install the air filter housing; then connect the

crankcase breather and the inlet air duct. Secure

with the clamps.

CD785

CD787

13. Position the carburetor into the intake pipe and

secure with the clamp; then connect the carbure-

tor boot to the air filter housing. Secure with the

clamp.

CD790

CD786

14. Connect the speed sensor connector to the sen-

sor housing.

CD794

15. Install the exhaust pipe and secure with two cap

screws making sure the mounting brackets

engage the frame grommets; then install the

muffler with the springs. Tighten all hardware to

specifications.

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CF138A

CD803

16. Swing the shift rod back into position on the

engine shift arm; then secure with the E-clip.

17. Place the left-side footwell and foot peg into

position on the footrest. Secure with two cap

screws. Tighten to specifications.

CD782

18. Connect the gas hose to the fuel pump; then con-

nect the vacuum hose. Secure with hose clamps.

CD766A

19. Connect the temperature sensor wire to the main

harness.

CD788

20. Connect the gear position indicator connector

(A), stator connector (B), and the CDI connector

(C) to the main harness.

CD797A

21. Install the front body panel and the front rack

(see Section 8).

22. Place the side panels into position; then install

the reinstallable rivets.

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3

CD683A

23. Install the battery connecting the positive cable

first; then the negative cable.

24. Pour the correct amount of recommended oil

into the engine/transmission filler hole; install

the filler plug.

ATV-0108

25. Pour 2.9 L (3 U.S. qt) of premixed Arctic Cat

Antifreeze into the cooling system. Allow cool-

ant to settle and then fill to the bottom of the

stand pipe in the radiator neck.

26. Install the seat making sure it locks into posi-

tion.

! CAUTION

If the engine had a major overhaul or if any major

part was replaced, proper engine break-in proce-

dures must be followed (see Section 1). If the proper

engine break-in procedures are not followed, severe

engine damage may result.

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3-256

Table of Contents

(700 EFI)

Removing Engine/Transmission ……………………. 3-256

Top-Side Components……………….…………….…… 3-260

Removing Top-Side Components …….……………. 3-260

Left-Side Components ……………………….………… 3-264

Removing Left-Side Components ….……………. 3-264

Right-Side Components …………….………….……… 3-268

Removing Right-Side Components…..……………. 3-268

Center Crankcase Components ……………………. 3-271

Separating Crankcase Halves………….……………. 3-271

Disassembling Crankcase Half ……………………… 3-272

Servicing Components………..……………..………… 3-274

Assembling Crankcase Half ………………..………… 3-294

Joining Crankcase Halves……………….…………. 3-296

Installing Right-Side Components…….……………. 3-297

Installing Left-Side Components …………….……… 3-299

Installing Top-Side Components …………………. 3-303

Installing Engine/Transmission…………….………… 3-307

Removing Engine/

Transmission

Many service procedures can be performed without

removing the engine/transmission from the frame.

Closely observe the note introducing each sub-sec-

tion for this important information.

1. Remove the seat.

2. Remove the negative cable from the battery;

then remove the positive cable.

3. Remove the radiator access cover, steering post

cover, and storage compartment cover assem-

bly; then remove the storage compartment box.

4. Remove the side panels.

CF237A

5. Remove the front rack and front body panel (see

Section 8).

6. Drain the oil from beneath the engine/transmis-

sion; then drain the coolant.

FI005A

FI004A

7. Remove the air filter (see Section 2).

8. Disconnect the primary coil wire; then discon-

nect the ground wire and remove the high ten-

sion wire/spark plug cap from the spark plug.

AT THIS POINT

If the technician’s objective is to service/replace

left-side components, right-side components, and/or

top-side components, the engine/transmission does

not have to be removed from the frame.

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3-257

3

FI066A

9. Loosen the clamp securing the air inlet duct to

the air filter housing.

FI098A

10. Disconnect the crankcase vent hose from the air

filter housing; then loosen the clamp securing

the air filter housing to the throttle body.

FI081A

FI099A

11. Remove the clamp securing the cooling duct

boot to the V-belt housing; then remove the

cooling duct boot from the V-belt housing out-

let.

FI075

FI076

12. Remove the left-side foot peg and footwell (see

Section 8).

13. Disconnect the air intake temperature sensor

connector; then lift the air filter housing off the

frame and slip the air pressure sensor off the

mount. Remove the air filter housing.

FI082A

14. Remove the ISC valve connector, the TPS con-

nector, the coolant temperature sensor connec-

tor, and the fuel injector connector.

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3-258

FI089A

15. Remove the springs securing the muffler to the

exhaust pipe. Account for the two exhaust

springs.

FI097A

16. Remove the two flange nuts securing the

exhaust pipe to the cylinder head; then remove

the pipe.

FI073

17. Remove the two coolant hoses from the engine;

then route the hoses out of the way.

18. Remove the cap screws securing the rear drive-

shaft/output flange to the rear output joint

flange.

FI079

NOTE: It is advisable to lock the brake when

loosening the cap screws securing the rear drive-

shaft.

19. Remove the positive cable from the starter

motor and route it out of the way.

FI094

20. Disconnect the speed sensor connector from the

sensor housing; then mark the shift arm/shift

shaft for installating purposes and remove the

shift arm.

FI078A

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3

FI085A

21. On the left side, disconnect the gear position

indicator connector (A), stator connector (B),

and the crankshaft position sensor connector

(C).

FI083A

22. Using an absorbent towel to catch any spilled

gas, press the locking tab release on the gasline

hose connector; then slide the gasline hose con-

nector off the fuel rail.

FI092A

FI109A

23. Loosen the clamp securing the throttle body to

the intake pipe; then remove the throttle body

and secure it out of the way.

24. Remove the two cap screws securing the intake

pipe to the cylinder head and remove the intake

pipe. Account for an O-ring.

25. Remove the engine damper stopper from the

frame; then remove the engine damper mount

and damper from the engine.

NOTE: The engine damper mount is secured to

the engine with the thermostat housing cap

screws. Note the position of the bleed valve in the

thermostat for assembling purposes.

FI067A

26. Support the engine/transmission; then remove

the lower front through-bolt.

! WARNING

Whenever working on the fuel system if a gasline

hose is removed from any component, slowly bleed

the pressure from the hose into an absorbent towel

before removing the hose from the component.

! WARNING

Make sure the ignition switch is in the OFF position

and the FUEL fuse is removed from the PDM to pre-

vent inadvertent discharge of gas from the gasline

hose.

! CAUTION

Cover the intake opening to prevent hardware or dirt

from entering the intake or severe engine damage

could occur.

$AMPER

3TOPPER

$AMPER-OUNT

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3-260

27. Remove the lower rear through-bolt; then free

the engine from the engine mounting brackets.

28. Lift the front of the engine/transmission far

enough to disengage the front drive spline from

the engine; then remove the engine from the

left-side of the ATV.

FI102

Top-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to removed from the frame for this procedure.

Removing Top-Side

Components

A. Cylinder Head Cover

B. Cylinder Head

NOTE: Remove the spark plug and timing

inspection plug; then using the recoil starter,

rotate the crankshaft to top-dead-center of the

compression stroke. Account for a copper washer

on the timing inspection plug.

1. Remove the cylinder head cover. Account for a

gasket and four seal washers.

FI122

2. Check and record valve tappet clearance for ref-

erence when assembling (see Section 2).

3. Remove the eight cap screws securing the cam-

shaft holders to the cylinder head.

4. Install two alignment studs in the exhaust cam-

shaft holder; then carefully remove the cam

shaft holder. Account for two alignment pins.

FI125A

FI123A

NOTE: Alignment studs can be made by cutting

the heads off two 6 mm x 5 cm cap screws and will

aid in preventing loss of the alignment pins into

the crankcase.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

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3

FI155A

5. Remove the exhaust camshaft; then repeat step 4

for the intake camshaft. Account for two align-

ment pins.

FI124A

6. Remove the intake camshaft; then wipe the four

valve tappets clean and using a suitable marker,

number the tappets and mark the corresponding

position on the cylinder head.

NOTE: This will greatly simplify valve clearance

adjustment during assembling.

FI154

7. Using a magnet, withdraw the valve tappets

from the cylinder head taking care to prevent

loose adjusting shims from falling into the

engine.

FI055

FI056

NOTE: The adjustment shims are of different

thickness. Whenever the shims are removed, they

must remain with the corresponding valve tappets

or complete valve adjustment will be required

when assembling.

FI157

8. Remove the cam chain tensioner plug, spring,

guide pin, and O-ring; then remove the cam

chain tensioner body.

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3-262

FI159A

9. Remove the coolant bypass hose from the cylin-

der head fitting; then remove the coolant cross-

over hose.

FI160

FI161

10. Loosen but do not remove the cam chain idler

shaft; then using a suitable flat-blade screw-

driver, hold the cam chain idler shaft shim

against the shoulder of the cam chain idler shaft

and remove the shaft. Account for a copper seal

washer and the cam chain idler shim.

FI162A

FI131A

11. Remove the cam chain idler from the cam chain;

then support the cam chain to prevent it from

dropping into the crankcase.

FI163

12. Remove the cylinder head cap screws (four 6

mm and five 12 mm) noting the location of the

longer and shorter 6 mm cap screws; then

remove the cylinder head. Account for two

alignment pins and one head gasket.

! CAUTION

Failure to hold the cam chain idler shim against the

cam chain idler shaft may result in the shim falling

into the engine resulting in severe engine damage.

! CAUTION

Do not rotate the engine with the cam chain loose or

severe engine damage could occur.

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3-263

3

FI133A

FI134A

C. Cylinder

D. Piston

NOTE: Steps 1-12 in the preceding sub-section

must precede this procedure.

13. Remove the cam chain guide; then remove the

two nuts from the cylinder base mounting studs.

FI135A

14. Lift the cylinder off the crankcase taking care

not to allow the piston to drop against the crank-

case. Account for the gasket and two alignment

pins.

FI136A

15. Note the position of the orientation dot on the

piston; then remove the piston pin circlips using

care not to drop the circlip into the crankcase.

FI138A

FI139

16. Remove the piston pin and the piston.

AT THIS POINT

To service valves and cylinder head, see

Servicing Top-Side Components sub-section.

AT THIS POINT

To inspect cam chain guide, see Servicing

Top-Side Components sub-section.

AT THIS POINT

To service cylinder, see Servicing Top-Side

Components sub-section.

! CAUTION

When removing the cylinder, make sure to support

the piston to prevent damage to the crankcase and

piston.

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NOTE: The piston pin is a full-floating type and

should slide out by hand. If the piston pin is stuck,

use Piston Pin Puller (p/n 0644-328) to remove the

piston pin.

CC033D

NOTE: Support the connecting rod with rubber

bands to avoid damaging the rod or install the

Connecting Rod Holder (p/n 0444-006).

NOTE: If the existing rings will not be replaced

with new rings, note the location of each ring for

proper installation. When replacing with new rings,

replace as a complete set only. If the piston rings

must be removed, remove them in this sequence.

A. Starting with the top ring, slide one end of the

ring out of the ring-groove.

B. Remove each ring by working it toward the

dome of the piston while rotating it out of the

groove.

Left-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to be removed from the frame for this procedure.

Removing Left-Side

Components

A. Recoil Starter

B. Water Pump

C. Cover

D. Rotor/Flywheel

E. Oil Pump

1. Remove the four cap screws securing the recoil

starter assembly to the left-side cover; then

remove the recoil starter. Account for the gasket.

2. Remove the flange nut securing the starter cup

to the crankshaft; then remove the starter cup.

Account for the O-ring inside the cup.

CD925A

! CAUTION

Do not allow the connecting rod to go down inside

the crankcase. If the rod is down inside the crank-

case and the crankshaft is rotated, severe damage

will result.

AT THIS POINT

To service piston, see Servicing Top-Side

Components sub-section.

AT THIS POINT

To service center crankcase components only,

proceed to Removing Left-Side Components.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

AT THIS POINT

To service the recoil starter, see Servicing

Left-Side Components sub-section.

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3

3. Remove the three cap screws securing the water

pump to the engine; then remove the water

pump.

FI141A

4. Remove the cap screws securing the left-side

cover to the crankcase noting the location of the

engine ground cap screw for installing purposes;

then remove the left-side cover. Account for a

gasket and two alignment pins.

FI147A

FI184A

NOTE: Inspect the inside of the left-side cover

for any shaft washers that may have come off with

the cover. Make sure they are returned to their

respective shafts.

FI185A

5. Remove the starter torque limiter. Account for

two washers, one bushing, and the shaft.

FI189

6. Remove the starter idler shaft (1) and the starter

idler gear (2); then remove the shift shaft (3).

Account for two washers on the shift shaft.

FI148A

FI302

AT THIS POINT

To service the water pump, see Section 4.

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3-266

7. Remove the shift cam driven gear (4); then

remove the cam stopper (5). Account for a spring.

FI311A

FI307A

8. Remove the circlip securing the drive gear on

the countershaft; then remove the drive gear.

Account for a spacer.

FI310

FI309A

9. Remove the rotor/flywheel nut (6); then install

the flywheel protector (7) and Magneto Rotor

Remover (p/n 0444-206) (8) and remove the

rotor/flywheel. Note the orientation of the

one-way bearing.

FI184B

FI191A

FI192A

FI195A

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3

10. Remove the rotor/flywheel key; then remove the

starter driven gear.

FI193A

FI194

11. Remove the pivot bolt from the cam chain ten-

sioner; then remove the cam chain tensioner and

cam chain. Account for a washer.

FI197A

12. Remove the snap ring (1) from the oil pump

shaft; then remove the oil pump driven gear (2)

and drive chain (3). Account for the oil pump

drive pin (4) and washer (5).

FI200A

FI201A

13. Using an impact driver and appropriate Phil-

lips-head bit, remove the three cap screws secur-

ing the oil pump and remove the oil pump.

FI308

NOTE: The oil pump is not a serviceable compo-

nent. Do not disassemble the oil pump. It is avail-

able only as a complete assembly.

14. Remove the cap screws from the crankshaft bal-

ancers; then remove the crankshaft balancer

driven gears. Account for two washers and two

keys.

! CAUTION

Make sure the crankshaft protector is fully installed

on the crankshaft and the rotor/flywheel puller is

turned all the way onto the rotor/flywheel or severe

damage to the crankshaft, rotor/flywheel, or puller

will occur.

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FI303A

15. Using a 52 mm deep-well socket and a suitable

holding tool, remove the crankshaft balancer

drive gear nut (1) from the crankshaft; then

remove the drive gear (2). Account for a washer

(3) and drive pin (4).

FI305A

FI318A

Right-Side Components

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

NOTE: The engine/transmission does not have

to be removed from the frame for this procedure.

Removing Right-Side

Components

A. V-Belt Cover

B. Driven Pulley

C. Clutch Cover

1. Remove the cap screws securing the V-belt

cover; then using a rubber mallet, gently tap on

the cover tabs to loosen the cover. Account for a

gasket.

2. Remove the bearing cap; then using Spanner

Wrench (p/n 0444-153) to hold the drive pulley,

remove the cap screw from the clutch shaft.

FI316A

3. Remove the three cap screws securing the V-belt

bearing housing to the inner V-belt cover; then

remove the housing. Account for two dowel pins

and a spacer.

AT THIS POINT

To service any one specific component, only

limited disassembly of components may be

necessary. Note the AT THIS POINT information in

each sub-section.

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3

FI315

FI429A

4. Make match marks on the fixed drive face and

the movable drive face; then remove the mov-

able drive face.

FI334

5. Using Spanner Wrench (p/n 0444-153) to hold

the driven pulley, remove the cap screw from the

driveshaft; then remove the driven pulley

assembly and the V-belt.

FI313

6. Remove the fixed drive face and center bushing.

7. Remove the eleven cap screws securing the

inner V-belt cover to the clutch cover; then

remove the inner V-belt cover. Account for two

gaskets.

FI225A

FI226

NOTE: To aid in installing, it is recommended

that the assemblies are kept together and IN

ORDER.

8. Remove the gear shift switch. Account for two

springs and two gear shift switch contacts.

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FI319

FI280

9. Remove the twelve cap screws securing the

clutch cover to the engine case noting the posi-

tions of the two longer cap screws; then remove

the clutch cover. Account for two alignment pins

and a gasket.

FI272

10. Note the reference mark and the word OUT-

SIDE stamped on the cage of the one-way

clutch; then remove the one-way clutch.

FI271A

11. Using a hydraulic press or rubber mallet,

remove the centrifugal clutch housing from the

clutch cover. Account for the primary shaft

spacer with O-ring.

FI344

12. Using Spanner Wrench (p/n 0444-153) to hold

the centrifugal clutch assembly, remove the

clutch retainer nut (left-hand threads); then

remove the centrifugal clutch assembly from the

crankshaft. Account for a concave washer and

note that the concave side is directed toward the

clutch assembly.

FI279A

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3

FI336

13. Remove the oil jet from the crankcase. Account

for an O-ring.

FI337

Center Crankcase

Components

NOTE: This procedure cannot be done with the

engine/transmission in the frame. Complete

Removing procedures for Top-Side, Left-Side, and

Right-Side must precede this procedure.

NOTE: For efficiency, it is preferable to remove

and disassemble only those components which

need to be addressed and to service only those

components. The technician should use discretion

and sound judgment.

Separating Crankcase

Halves

1. Remove the thirteen right-side 6 mm cap screws

using a crisscross pattern; then remove the six

right-side 8 mm cap screws. Note the location of

the different-lengthed cap screws and the wire

clip location.

FI274

FI275

FI276

FI277

2. Using the Crankcase Separator/Crankshaft

Remover (p/n 0444-009) and tapping lightly

with a rubber mallet, separate the crankcase

halves. Account for two alignment pins.

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NOTE: To keep the shaft/gear assemblies intact

for identification, tap the shafts toward the left-side

crankcase half when separating the halves.

FI273

Disassembling

Crankcase Half

NOTE: For steps 1-7, refer to illustration FI235A.

FI235A

NOTE: To aid in assembling, it is recommended

that the assemblies are kept together and IN

ORDER.

1. Remove the secondary driven shaft assembly

(A) noting the location of the bearing locating

pin (1). Account for the bearing C-ring (2).

FI288A

2. Remove the reverse idler gear assembly (F).

Account for two washers, shaft, needle bearing,

and the gear.

FI291

3. Remove the shift fork shaft (H); then remove the

two forks taking note of the direction of the tabs

on the forks for assembling purposes.

FI282A

4. Remove the gear shift camshaft (G) noting the

location of the two holes on the end of the shaft.

KEY

A. Secondary Driven Shaft

Assembly

B. Crank Balancer Assembly

C. Crankshaft

D. Countershaft Assembly

E. Driveshaft

F. Reverse Idler Gear

Assembly

G. Gear Shift Camshaft

H. Shift Fork Shaft with Two

Forks

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3

FI282B

5. Remove the countershaft assembly (D). Account

for a washer on the end of the countershaft.

FI343

NOTE: Do not disassemble the countershaft

assembly unless necessary. If necessary, see Ser-

vicing Center Crankcase Components sub-sec-

tion.

6. Using a small chisel or screwdriver, unlock the

drive bevel gear nut; then hold the output driven

gear with a suitable holding tool and remove the

drive bevel gear nut.

FI349

7. Using a rubber mallet, tap the output driveshaft

from the bearing. Account for a shim, driven

bevel gear, washer, and nut.

FI407

8. Remove the front and rear crankshaft balancers;

then install the magneto cover on the left crank-

case half.

9. Using Crankcase Separator/Crankshaft Remover

(p/n 0444-009), remove the crankshaft assembly

from the bearing; then remove the magneto

cover.

FI252

! CAUTION

Do not attempt to separate the output driven gear

from the output driveshaft. They are serviced as an

assembly only.

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3-274

Table of Contents

(Servicing Components)

NOTE: Critical engine/transmission specifica-

tions are located at the beginning of this section.

Servicing Top-Side Components ……..……………. 3-274

Cylinder Head/Valve Assembly …….……………. 3-274

Piston Assembly ……….…………….……………. 3-277

Cylinder Assembly ..…………….…………….……… 3-278

Servicing Left-Side Components .…………….…… 3-281

Recoil Starter ………………………….……………. 3-281

Inspecting Oil Pump ..…………….…………….…… 3-284

Servicing Right-Side Components ……………… 3-284

Inspecting Centrifugal Clutch Shoe ……………. 3-284

Inspecting Clutch Housing ………………………… 3-284

Inspecting Primary One-Way Drive ………….. 3-285

Driven Pulley Assembly ………………..………… 3-285

Servicing Center Crankcase Components ……… 3-289

Secondary Gears ………………….………….……… 3-289

Crankshaft Assembly ……………….……………. 3-290

Countershaft …………….…………….……………. 3-291

Servicing Top-Side

Components

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

CYLINDER HEAD/

VALVE ASSEMBLY

When servicing valve assembly, inspect valve seats,

valve stems, valve faces, and valve stem ends for

pits, burn marks, or other signs of abnormal wear.

NOTE: Whenever a valve is out of tolerance, it

must be replaced.

Cleaning/Inspecting Cylinder Head

1. Using a non-metallic carbon removal tool,

remove any carbon buildup from the combus-

tion chamber being careful not to nick, scrape,

or damage the combustion chamber or the seal-

ing surface.

2. Inspect the spark plug hole for any damaged

threads. Repair damaged threads using a

“heli-coil” insert.

3. Place the cylinder head on the surface plate cov-

ered with #400 grit wet-or-dry sandpaper. Using

light pressure, move the cylinder head in a fig-

ure eight motion. Inspect the sealing surface for

any indication of high spots. A high spot can be

noted by a bright metallic finish. Correct any

high spots before assembly by continuing to

move the cylinder head in a figure eight motion

until a uniform bright metallic finish is attained.

FI358

Measuring Cylinder Head

Distortion

1. Remove any carbon buildup in the combustion

chamber.

2. Lay a straightedge across the cylinder head; then

using a feeler gauge, check the distortion factor

between the head and the straightedge.

3. Maximum distortion must not exceed specifica-

tions.

FI357

! CAUTION

The cylinder head studs must be removed for this

procedure.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

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3

Removing Valves

NOTE: Keep all valves and valve components as

a set. Note the original location of each valve set

for use during installation. Return each valve set to

its original location during installation.

1. Using a valve spring compressor, compress the

valve springs and remove the valve cotters.

Account for an upper spring retainer.

FI331

2. Remove the valve seal and the lower remaining

spring seat. Discard the valve seal.

FI351

NOTE: The valve seals must be replaced.

3. Remove the valve springs; then invert the cylin-

der head and remove the valves.

Measuring Valve Stem Runout

1. Support each valve stem end with the V Blocks

(p/n 0644-022); then check the valve stem

runout using a dial indicator.

FI330

2. Maximum runout must not exceed specifica-

tions.

Measuring Valve Stem

Outside Diameter

1. Using a micrometer, measure the valve stem

outside diameter.

2. Acceptable diameter range (intake valve) must

be within specifications.

3. Acceptable diameter range (exhaust valve) must

be within specifications.

Measuring Valve Face/Seat Width

1. Using a calipers, measure the width of the valve

face.

ATV-1004

2. Acceptable width range must be within specifi-

cations.

Measuring Valve Face Radial

Runout

1. Mount a dial indicator on the surface plate; then

place the valve stem on a set of V blocks.

2. Position the dial indicator contact point on the

outside edge of the valve face; then zero the

indicator.

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FI328

3. Rotate the valve in the V blocks.

4. Maximum runout must not exceed specifications.

Measuring Valve Stem Deflection

(Wobble Method)

1. Mount a dial indicator and base on the surface

plate; then place the cylinder head on the surface

plate.

2. Install the valve into the cylinder head; then

position the dial indicator contact point against

the outside edge of the valve face. Zero the indi-

cator.

FI323

3. Push the valve from side to side; then from top

to bottom.

4. Maximum “wobble” deflection must not exceed

specifications.

Measuring Valve Guide

(Inside Diameter)

1. Insert a snap gauge 1/2 way down into each

valve guide bore; then remove the gauge and

measure it with a micrometer.

2. Acceptable inside diameter range must be

within specifications.

3. If a valve guide is out of tolerance, it must be

replaced.

Servicing Valves/Valve

Guides/Valve Seats

If valves, valve guides, or valve seats require servic-

ing or replacement, Arctic Cat recommends that the

components be taken to a qualified machine shop

for servicing.

Installing Valves

1. Apply grease to the inside surface of the valve

seals; then place a lower spring seat and valve

guide seal over each valve guide.

FI351

2. Insert each valve into its original valve location.

3. Install the valve springs with the painted end of

the spring facing away from the cylinder head.

NOTE: If the paint is not visible, install the ends

of the springs with the closest wound coils toward

the head.

ATV-1011A

4. Place a spring retainer over the valve springs;

then using the valve spring compressor, com-

press the valve springs and install the valve cot-

ters.

! CAUTION

If any valve is discolored or pitted or if the seating

surface is worn, the valve must be replaced. Do not

attempt to grind a valve or severe engine damage

may occur.

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3-277

3

FI331

PISTON ASSEMBLY

NOTE: Whenever a piston, rings, or pin are out

of tolerance, they must be replaced.

Cleaning/Inspecting Piston

1. Using a non-metallic carbon removal tool,

remove any carbon buildup from the dome of

the piston.

2. Inspect the piston for cracks in the piston pin,

dome, and skirt areas.

3. Inspect the piston for seizure marks or scuffing.

Repair with #400 grit wet-or-dry sandpaper and

water or honing oil.

NOTE: If scuffing or seizure marks are too deep

to correct with the sandpaper, replace the piston.

4. Inspect the perimeter of each piston for signs of

excessive “blowby.” Excessive “blowby” indi-

cates worn piston rings or an out-of-round cylin-

der.

Removing Piston Rings

1. Starting with the top ring, slide one end of the

ring out of the ring-groove.

CC400D

2. Remove each ring by working it toward the

dome of the piston while rotating it out of the

groove.

NOTE: If the existing rings will not be replaced

with new ones, note the location of each ring for

proper installation. When installing new rings,

install as a complete set only.

Cleaning/Inspecting Piston

1. Take an old piston ring and snap it into two

pieces; then grind the end of the old ring to a 45°

angle and to a sharp edge.

2. Using the sharpened ring as a tool, clean carbon

from the ring-grooves. Be sure to position the

ring with its tapered side up.

Measuring Piston-Ring End Gap

(Installed)

1. Place each compression ring in the wear portion

of the cylinder. Use the piston to position each

ring squarely in the cylinder.

2. Using a feeler gauge, measure each piston-ring

end gap. Acceptable ring end gap must be

within specifications.

FI327

Measuring Piston Pin (Outside

Diameter) and Piston-Pin Bore

1. Measure the piston pin outside diameter at each

end and in the center. If measurement is not

within specifications, the piston pin must be

replaced.

! CAUTION

Improper cleaning of the ring-grooves by the use of

the wrong type of ring-groove cleaner will result in

severe damage to the piston.

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3-278

ATV-1070

2. Insert an inside dial indicator into the piston-pin

bore. The diameter must not exceed specifica-

tions. Take two measurements to ensure accu-

racy.

ATV-1069

Measuring Piston Skirt/

Cylinder Clearance

1. Measure the cylinder front to back in six places.

CC127D

2. Measure the corresponding piston diameter at a

point 15 mm (0.6 in.) above the piston skirt at a

right angle to the piston-pin bore. Subtract this

measurement from the measurement in step 1.

The difference (clearance) must be within speci-

fications.

Installing Piston Rings

Install ring expander (4) in the bottom groove of the

piston; then install the thin oil rings (3) over the

expander making sure the expander ends do not

overlap. Stagger the end gaps of the upper and lower

thin oil rings according to the illustration.

ATV-1085B

NOTE: Note the direction of the exhaust side of

the piston (5) for correct ring end gap orientation.

NOTE: The chrome (L-shaped) ring must be

installed in the top position. The ring marked RN

must be installed in the middle position.

FI168A

CYLINDER ASSEMBLY

NOTE: If the cylinder/cylinder head assembly

cannot be trued, they must be replaced.

Cleaning/Inspecting Cylinder

1. Wash the cylinder in parts-cleaning solvent.

2. Inspect the cylinder for pitting, scoring, scuff-

ing, warpage, and corrosion. If marks are found,

repair the surface using a cylinder hone (see

Honing Cylinder in this sub-section).

! CAUTION

Incorrect installation of the piston rings will result in

engine damage.

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3-279

3

3. Place the cylinder on the surface plate covered

with #400 grit wet-or-dry sandpaper. Using light

pressure, move the cylinder in a figure eight

motion. Inspect the sealing surface for any indi-

cation of high spots. A high spot can be noted by

a bright metallic finish. Correct any high spots

before assembly by continuing to move the cyl-

inder in a figure eight motion until a uniform

bright metallic finish is attained.

CC129D

Inspecting Cam Chain Guide

1. Inspect cam chain guide for cuts, tears, breaks,

or chips.

2. If the chain guide is damaged, it must be

replaced.

Honing Cylinder

1. Using a slide gauge and a dial indicator or a

snap gauge, measure the cylinder bore diameter

in three locations from top to bottom and again

from top to bottom at 90° from the first mea-

surements for a total of six measurements. The

trueness (out-of-roundness) is the difference

between the highest and lowest reading. Maxi-

mum trueness (out-of-roundness) must not

exceed specifications.

CC127D

2. Wash the cylinder in parts-cleaning solvent.

3. Inspect the cylinder for pitting, scoring, scuff-

ing, and corrosion. If marks are found, replace

the cylinder.

4. If any measurement exceeds the limit, replace

the cylinder and piston.

Measuring Camshaft Runout

NOTE: If the camshaft is out of tolerance, it must

be replaced.

1. Place the camshaft on a set of V blocks; then

position the dial indicator contact point against

the shaft and zero the indicator.

CC283D

2. Rotate the camshaft and note runout; maximum

tolerance must not exceed specifications.

! CAUTION

Water or parts-cleaning solvent must be used in

conjunction with the wet-or-dry sandpaper or dam-

age to the sealing surface may result.

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3-280

Measuring Camshaft Lobe Height

1. Using a calipers, measure each cam lobe height.

ATV1013A

2. The lobe heights must not exceed minimum

specifications.

Inspecting Camshaft Bearing

Journal

1. Inspect the bearing journal for scoring, seizure

marks, or pitting.

2. If excessive scoring, seizure marks, or pitting is

found, the cylinder head assembly must be

replaced.

Measuring Camshaft to

Cylinder Head Clearance

1. Place a strip of plasti-gauge in each of the cam-

shaft lands in the cylinder head.

2. Place the camshafts in the cylinder head; then

install the camshaft journal caps and tighten.

NOTE: Do not rotate the camshaft when measur-

ing clearance.

3. Remove the camshaft journal caps; then remove

the camshafts.

4. Match the width of the plasti-gauge with the

chart found on the plasti-gauge packaging to

determine camshaft to cylinder head clearance.

FI444

5. If clearance is excessive, measure the journals of

the camshaft.

FI377

NOTE: If the journals are worn, replace the cam-

shaft; then measure the clearance again. If it is still

out of tolerance, replace the cylinder head.

Inspecting Exhaust Camshaft

Compression Release Assembly

1. Inspect the spring and decompression pin for

damage.

FI411

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3

FI412

2. If damaged, the camshaft must be replaced.

Servicing Left-Side

Components

RECOIL STARTER

0737-764

Removing/Disassembling

1. Remove the cap screws securing the recoil

starter assembly to the left-side cover; then

remove the starter.

CC039D

2. Rotate the reel counterclockwise until the notch

of the reel is near the rope guide in the case.

Guide the rope into the notch and slowly allow

the reel to retract until all spiral spring tension is

released.

B600D

3. Remove the nut.

B601D

4. Slowly release the friction plate and lift the plate

with ratchet guide free of the recoil case; then

remove the ratchet guide from the friction plate.

KEY

1. Recoil Starter Assy

2. Rope Assy

3. Spiral Spring

4. Reel

5. Ratchet Assy

6. Nut

7. Cap Screw

8. Nut

9. Starter Cup

10. O-Ring

11. O-Ring

12. Spacer

13. Oil Seal

14. Bearing

! WARNING

During the disassembly procedure, continuous

downward pressure must be exerted on the reel

so it does not accidentally disengage and cause

injury.

! CAUTION

During the disassembly procedure, make sure all

spring tension is released before continuing.

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3-282

B602D

5. Remove the spring, collar, and friction spring.

B603D

6. Remove the ratchet and account for the pin.

B604D

7. Carefully lift the reel from the case making sure

the spiral spring does not accidentally disengage

from the case.

B605D

8. Remove the protective cover from the starter

handle and pull the rope out of the handle; then

untie the knot in the rope and remove the han-

dle.

NOTE: Do not remove the spiral spring unless

replacement is necessary. It should be visually

inspected in place to save time. If replacement is

necessary, follow steps 9-10.

9. Remove the spring from the case by lifting the

spring end up and out. Hold the remainder of the

spring with thumbs and alternately release each

thumb to allow the spring to gradually release

from the case.

10. Unwind the rope from the reel and remove the

rope.

Cleaning and Inspecting

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all components.

2. Inspect the springs and ratchet for wear or dam-

age.

3. Inspect the reel and case for cracks or damage.

4. Inspect the shaft for wear, cracks, or damage.

5. Inspect the rope for breaks or fraying.

6. Inspect the spiral spring for cracks, crystalliza-

tion, or abnormal bends.

7. Inspect the handle for damage, cracks, or deteri-

oration.

! WARNING

Care must be taken when lifting the reel free of

the case. Wear safety glasses to avoid injury.

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3

Assembling/Installing

1. If removed, insert the spiral spring into the case

with the outer end of the spring around the

mounting lug in the case; then wind it in a coun-

terclockwise direction until the complete spring

is installed.

NOTE: The spiral spring must seat evenly in the

recoil case.

B606D

2. Insert the rope through the hole in the reel and

tie a knot in the end; then wrap the rope counter

clockwise around the reel leaving approximately

50 cm (20 in.) of rope free of the reel.

3. Apply low-temperature grease to the spring and

hub.

4. Thread the end of the rope through the guide

hole of the case; then thread the rope through the

handle and secure it with a double knot. Install

the protective cover into the handle.

5. Align the inner hook of the spiral spring with the

notch in the reel.

B605D

6. Install the ratchet making sure the end is prop-

erly installed on the reel.

B604D

7. Install the friction spring and the spring cover.

B603D

8. Install the friction plate with the ratchet guide

fitting into the ratchet.

B602D

9. While pushing down on the reel, install the nut.

Tighten securely.

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B601D

10. With the 50 cm (20 in.) of rope exposed, hook

the rope in the notch of the reel.

11. Rotate the reel four turns counterclockwise; then

release the rope from the notch and allow the

rope to retract.

12. Pull the rope out two or three times to check for

correct tension.

NOTE: Increasing the rotations in step 11 will

increase spring tension.

13. Place the recoil starter assembly into position on

the left-side cover; then tighten the cap screws

to specifications.

CC039D

INSPECTING OIL PUMP

1. Inspect the pump for damage.

2. It is inadvisable to remove the screw securing

the pump halves. If the oil pump is damaged, it

must be replaced.

CC446D

Servicing Right-Side

Components

NOTE: Whenever a part is worn excessively,

cracked, damaged in any way, or out of tolerance,

replacement is necessary.

INSPECTING CENTRIFUGAL

CLUTCH SHOE

1. Inspect the clutch shoes for uneven wear, chips,

cracks, or discoloration. If any shoe is damaged,

replace the complete set.

2. Inspect the clutch shoes for wear or damage. If

any shoe is worn to the bottom of the groove,

replace the complete set.

ATV1014

INSPECTING CLUTCH HOUSING

1. Inspect the clutch housing for burns, grooving,

cracks, or uneven wear.

! CAUTION

Always replace the clutch shoes as a complete set

or severe imbalance could occur.

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3

2. If the housing is damaged in any way, the hous-

ing must be replaced.

INSPECTING PRIMARY

ONE-WAY DRIVE

1. Insert the drive into the clutch housing.

2. Rotate the inner race by hand and verify the

inner race rotates only one direction.

3. If the inner race is locked in place or rotates both

directions, the drive assembly must be replaced.

DRIVEN PULLEY ASSEMBLY

Disassembling

1. Secure Driven Pulley Compressor (p/n

0444-121) in a suitable holding fixture such as a

bench vise; then remove the wing nut, holding

handle, flat washer, and pilot bushing leaving

the large spacer on the compressor tool base.

CD047

2. Place the driven pulley assembly onto the com-

pressor tool base engaging the dowel pins into

appropriate holes in the fixed face of the assem-

bly.

CD048

3. Install the pilot bushing with the machined end

directed down; then fit the bushing into the pul-

ley hub.

CD067

4. Using a suitable marking pen, make alignment

marks on the fixed face spring holder and both

pulley faces.

CD049

5. Place the holding handle on the spring holder

fitting the two dowel pins into the spring holder

face; then install a flat washer and the wing nut.

Turn the wing nut down until resistance is felt.

NOTE: Do not use the wing nut to compress the

spring further.

CD050

! WARNING

This procedure involves relaxing a compressed

spring assembly. DO NOT attempt disassembling

without the proper tools.

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3-286

6. Using a spanner and suitable breaker bar, loosen

the notched-ring nut; then spin the nut free of

the hub.

CD051

7. Firmly hold the handle and slowly turn the wing

nut counterclockwise to relax the spring.

NOTE: There will be a tendency for the handle to

rotate clockwise approximately ¼ turn as the

spring holder clears the flats or hub. This is due to

a slight counterclockwise preload on the spring.

CD052

8. Release the preload slowly; then continue to

relax the spring until the wing nut is flush with

the end of the threads.

9. Firmly holding the spring and spring holder,

remove the wing nut; then remove the spring.

CD053

10. Using a thin pry-bar or screwdriver, work the

movable face sleeve upward and free of the

O-rings; then remove the sleeve.

CD054

11. Remove the four pins and spacers from the cam

slots in the movable face; then remove the mov-

able face.

CF091

! WARNING

The spring assembly is under pressure. Extreme

care must be taken when relaxing the spring. Always

wear safety glasses. Use proper tools only.

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3

CD056

Inspecting

1. Inspect the pulley faces for wear, galling, or

grooving.

2. Inspect the O-rings on the movable face for

nicks, tears, or swelling.

CF092A

3. Inspect two grease seals in the movable face for

nicks, cuts, or damage.

CF095A

4. Inspect the pins and bushings for wear, flat

spots, looseness, or cracking.

Assembling

1. Place the fixed face of the driven pulley on the

pulley compressor base making sure the dowel

pins are engaged in the appropriate holes in the

pulley face.

NOTE: Make sure the spacer is on the base or

damage to the fixed face will occur when the

spring is compressed.

CD048

2. Apply multi-purpose grease to the O-rings and

grease seals on the movable face; then install on

the fixed face making sure the alignment marks

are properly aligned.

CD060

3. Install the four pins and spacers into the fixed

face hub; then pack the cam slots in the movable

face with multi-purpose grease.

CF095A

4. Install the movable face sleeve aligning the hole

in the spring seat with the spring anchor hole in

the movable face.

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CF097

5. Install the spring over the hub and movable face

sleeve; then insert the end of the spring through

the sleeve and into the spring anchor hole in the

movable face.

CF089A

6. Place the spring holder on the spring engaging

the spring end with the appropriate anchor hole.

CF087A

7. Assemble the notched-ring nut, spring holding

handle, one flat washer, and the wing nut in

order on the pulley compressor bolt; then thread

the wing nut onto the bolt.

CD052

8. Compress the spring until the spring holder

nears the threads on the fixed face hub; then

using the handle, wind the spring holder coun-

terclockwise to align the flats of the spring

holder and hub.

CD052A

9. Continue compressing the spring while guiding

the spring holder onto the hub. When a slight

resistance is felt, stop turning the wing nut.

10. Install the nut (threads coated with red Loctite

#271); then tighten the nut to specification using

the spanner and a torque wrench.

CD066

11. Remove the wing nut, washer, and holding han-

dle; then remove the driven pulley from the pul-

ley compressor.

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3-289

3

Servicing Center

Crankcase Components

NOTE: Whenever a part is worn excessively,

cracked, damaged in any way, or out of tolerance,

replacement is necessary.

SECONDARY GEARS

NOTE: When checking and correcting secondary

gear backlash and tooth contact, the universal

joint must be secured to the front shaft or false

measurements will occur.

Checking Backlash

NOTE: The rear shaft and bevel gear must be

removed for this procedure. Also, always start with

the original shims on the rear shaft.

1. Place the left-side crankcase cover onto the

left-side crankcase half to prevent runout of the

secondary transmission output shaft.

2. Install the secondary driven output shaft assem-

bly onto the crankcase.

3. Mount the dial indicator so the tip is contacting

a tooth on the secondary driven bevel gear.

4. While rocking the driven bevel gear back and

forth, note the maximum backlash reading on

the gauge.

5. Acceptable backlash range is 0.03-0.15 mm

(0.001-0.006 in.).

Correcting Backlash

NOTE: If backlash measurement is within the

acceptable range, no correction is necessary.

1. If backlash measurement is less than specified,

remove an existing shim, measure it, and install

a new thicker shim.

2. If backlash measurement is more than specified,

remove an existing shim, measure it, and install

a thinner shim.

NOTE: Continue to remove, measure, and install

until backlash measurement is within tolerance.

Note the following chart.

Checking Tooth Contact

NOTE: After correcting backlash of the second-

ary driven bevel gear, it is necessary to check

tooth contact.

1. Remove the secondary driven output shaft

assembly from the left-side crankcase half.

2. Clean the secondary driven bevel gear teeth of

old oil and grease residue.

3. Apply a thin, even coat of a machinist-layout

dye to several teeth of the gear.

4. Install the secondary driven output shaft assem-

bly.

5. Rotate the secondary driven bevel gear several

revolutions in both directions.

6. Examine the tooth contact pattern in the dye and

compare the pattern to the illustrations.

ATV-0103

ATV-0105

Backlash Measurement Shim Correction

Under 0.03 mm (0.001 in.) Increase Shim

Thickness

At 0.03-0.15 mm

(0.001-0.006 in.)

No Correction Required

Over 0.15 mm (0.006 in.) Decrease Shim

Thickness

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3-290

ATV-0104

Correcting Tooth Contact

NOTE: If tooth contact pattern is comparable to

the correct pattern illustration, no correction is

necessary.

If tooth contact pattern is comparable to an incorrect

pattern, correct tooth contact according to the fol-

lowing chart.

NOTE: To correct tooth contact, steps 1 and 2

(with NOTE) of “Correcting Backlash” must be fol-

lowed and the above “Tooth Contact/Shim Correc-

tion” chart must be consulted.

CRANKSHAFT ASSEMBLY

Measuring Connecting Rod

(Small End Inside Diameter)

1. Insert a snap gauge into the upper connecting

rod small end bore; then remove the gauge and

measure it with micrometer.

FI267

2. Maximum diameter must not exceed specifica-

tions.

Measuring Connecting Rod

(Small End Deflection)

1. Place the crankshaft on a set of V-blocks and

mount a dial indicator and base on the surface

plate. Position the indicator contact point against

the center of the connecting rod small end jour

nal.

2. Zero the indicator and push the small end of the

connecting rod away from the dial indicator.

3. Maximum deflection must not exceed specifica-

tions.

Measuring Connecting Rod

(Big End Side-to-Side)

1. Push the lower end of the connecting rod to one

side of the crankshaft journal.

2. Using a feeler gauge, measure the gap between

the connecting rod and crankshaft journal.

FI266

3. Maximum gap range must not exceed specifica-

tions.

Tooth Contact Shim Correction

Contacts at Top Increase Shim Thickness

Contacts at Root Decrease Shim Thickness

! CAUTION

After correcting tooth contact, backlash must again

be checked and corrected (if necessary). Continue

the correcting backlash/correcting tooth contact pro-

cedures until they are both within tolerance values.

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3

Measuring Connecting Rod

(Big End Width)

1. Using a calipers, measure the width of the con-

necting rod at the big-end bearing.

2. Acceptable width range must be within specifi-

cations.

Measuring Crankshaft (Runout)

1. Place the crankshaft on a set of V blocks.

2. Mount a dial indicator and base on the surface

plate. Position the indicator contact at point 1 of

the crankshaft.

ATV-1074

3. Zero the indicator and rotate the crankshaft slowly.

4. Maximum runout must not exceed specifications.

NOTE: Proceed to check runout on the other end

of the crankshaft by positioning the indicator con

tact at point 2 and following steps 2-4.

Measuring Crankshaft

(Web-to-Web)

1. Using a calipers, measure the distance from the

outside edge of one web to the outside edge of

the other web.

ATV-1017

2. Acceptable width range must be within specifi-

cations.

COUNTERSHAFT

Disassembling

1. Remove the thrust washer (1); then remove the

low driven gear (2) and the bushing (3) noting

the orientation of the oil hole.

FI391A

2. Remove the low/reverse spacer (4), low/reverse

clutch dog (5), and reverse driven gear (6); then

noting the orientation of the oil hole, remove the

reverse driven gear bushing (7).

! CAUTION

Care should be taken to support the connecting rod

when rotating the crankshaft.

! CAUTION

When disassembling the countershaft, care must be

taken to note the direction each major component

(dog, gear) faces. If a major component is installed

facing the wrong direction, transmission damage

may occur and/or the transmission will malfunction.

In either case, complete disassembly and assembly

will be required.

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FI392A

FI393A

3. Remove the locking tab washer (8); then rotate

the thrust washer (9) and remove from the coun-

tershaft.

FI395A

FI396A

4. Remove the high driven gear spacer (10), high

driven clutch dog (11), and the high driven gear

(12). Account for the bushing (13), wave washer

(14), and thrust washer (15).

FI397A

FI399A

Assembling

1. Install the thrust washer (15), wave washer (14),

and bushing (13) on the countershaft; then

install the high driven gear (12) making sure the

wave washer (14) is aligned under the thrust

washer (15).

FI399A

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3

FI398A

2. Install the high driven gear spacer (10) and high

driven clutch dog (11).

FI402A

3. Position the thrust washer (9) onto the counter-

shaft; then while pressing toward the driven

gear, rotate the thrust washer to engage the

splines and install the locking tab washer (8)

making sure the tabs engage the splines.

FI396A

FI395A

4. Install the reverse driven gear bushing (7) mak-

ing sure to align the oil hole in the bushing with

the oil hole in the countershaft; then install the

reverse driven gear (6), low/reverse clutch dog

(5), and low/reverse spacer (4).

FI393A

FI392A

5. Install the low driven bushing (3) making sure

the oil hole in the bushing aligns with the hole in

the countershaft; then install the low driven gear

(2) and the thrust washer (1).

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FI391A

NOTE: The countershaft is now completely

assembled and ready for installation.

FI406

NOTE: When installing the countershaft assem-

bly, account for the washer on each end of the

shaft.

Assembling Crankcase

Half

1. Install the output shaft assembly into the crank-

case making sure the driven bevel gear, shim,

washer, and nut are properly sequenced.

FI407

2. Apply red Loctite #271 to the threads of the out-

put shaft; then secure with the nut. Tighten nut

to specifications; then using a punch, peen the

nut as shown.

FI346A

3. Apply a liberal amount of engine oil to the

crankshaft bearing. Using a propane torch, heat

the bearing until the oil begins to smoke; then

slide the crankshaft assembly into place.

FI409

NOTE: If heating the bearing is not possible, the

crankshaft can be installed using a crankshaft

installing tool.

4. Install the drive pin (4) in the crankshaft; then

apply red Loctite #271 to the threads of the

crankshaft and install the crankshaft balancer

drive gear (2), washer (3), and nut (1). Tighten

to specifications; then using a punch, stake the

nut to the crankshaft.

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3

FI318A

FI305A

5. Install the front and rear crankshaft balancers;

then install the drive keys and driven gears mak-

ing sure the timing marks are properly aligned to

the drive gear timing marks.

FI303A

FI303B

6. Install the water pump drive gear on the front

crankshaft balancer and the oil pump drive

sprocket on the rear crankshaft balancer; then

thread in but do not tighten the cap screws at this

time.

FI441A

7. Install the assembled countershaft; then install

the driveshaft.

FI343

8. Install the shift cam assembly making sure the two

holes on the end of the shaft are positioned

vertically.

9. Insert the two shift forks into the sliding dogs

noting the direction of the tabs from disassem-

bling; then install the gear shift fork shaft.

NOTE: Make sure the shift fork tabs face upward

and that they are properly seated into the shift

cams.

FI282A

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3-296

10. Install the reverse idler gear assembly noting the

positioning of the two washers, gear, bushing,

and shaft.

FI291

11. Install the rear secondary driven shaft assembly

into the left side of the crankcase making sure

the bearing locating pin (1) is facing upward and

the bearing C-ring (2) is fully seated in the

crankcase.

FI288A

12. Place the oil strainer into position in the left

crankcase half.

FI299

13. Install the two alignment pins in the left crank-

case half.

Joining Crankcase

Halves

1. Apply High-Temp Sealant to the left-side mat-

ing surface.

2. Lightly oil all bearings and grease all shafts in

the right-side crankcase.

3. Making sure to align the shafts and alignment

pins, join the two crankcase halves.

4. Using a plastic mallet, lightly tap the case halves

together until cap screws can be installed.

5. From the right side, install the 8 mm cap screws

(two inside the case); then tighten only until

snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

6. From the right side, install the 6 mm cap screws

(two inside the case); then tighten only until

snug.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

7. In a crisscross pattern, tighten the 8 mm cap

screws (from step 5) until the halves are cor-

rectly joined; then tighten to specifications.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

8. In a crisscross pattern, tighten the 6 mm cap

screws (from step 6) to specifications.

NOTE: Rotate the shafts back and forth to

ensure no binding or sticking occurs.

! CAUTION

Do not heat the bearing in the right-side crankcase

half. Damage to the oil seal will occur.

AT THIS POINT

After completing center crankcase components,

proceed to Installing Right-Side Components, to

Installing Left-Side Components, and to In- stalling

Top-Side Components.

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3

Installing Right-Side

Components

1. Install the shift indicator sending unit making

sure the two neutral contact pins and the two

springs are properly positioned. Tighten the

Allen-head screws securely.

FI281

2. Using a new O-ring, install the oil jet in the right

side of the crankcase.

FI337

3. Install the clutch shoe assembly and secure with

the washer (with the flat side facing the assem-

bly as noted in removing) and the nut (threads

coated with red Loctite #271). Tighten to speci-

fications.

FI279A

4. Lightly grease the clutch housing seal; then

insert the primary drive spacer.

FI344

FI420A

5. Install the clutch cover alignment pins into the

crankcase, apply oil to the cover gasket, and

install the gasket onto the crankcase.

6. Apply grease to the outer edges of the clutch

housing; then from inside the clutch cover,

install the clutch housing into the cover using a

rubber mallet.

7. Install the one-way clutch onto the clutch shoe

assembly.

! CAUTION

Care must be taken that the directional washer be

installed correctly and note that the nut has

left-hand threads.

! CAUTION

When installed correctly, the green dot (or the word

OUTSIDE) on the one-way clutch is visible.

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FI442A

8. Place the clutch cover/clutch housing assembly

into position on the crankcase; then secure with

the cap screws making sure the differ-

ent-lengthed cap screws are in their proper loca-

tion. Tighten to specifications.

9. Position the two gaskets in place on the crank-

case; then install the inner V-belt housing.

FI226

FI225

10. Place the driven pulley assembly into position

and secure with the nut. Tighten to specifica-

tions.

11. Slide the fixed drive face onto the shaft.

12. Spread the faces of the driven pulley by pushing

the inner face toward the engine while turning it

counterclockwise; then when the faces are sepa-

rated, press the V-belt down between the pulley

faces.

13. Place the V-belt into position over the front shaft.

FI221

NOTE: The arrows on the V-belt should point for-

ward.

14. Pinch the V-belt together near its center and

slide the movable drive face and clutch housing

spacer onto the shaft. Secure the drive face with

a cap screw (threads coated with red Loctite

#271). Tighten the cap screw to specifications.

FI429A

FI428A

! CAUTION

Make sure the splines extend beyond the movable

drive face plate or the clutch housing spacer may

become jammed when the cap screw is tightened.

This could result in a false torque reading.

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3-299

3

15. Rotate the V-belt and drive/driven assemblies

until the Vbelt is flush with the top of the driven

pulley.

16. Install the V-belt housing assembly and tighten

the three cap screws securely.

FI220

17. Place the V-belt cover gasket into position; then

install the cover and secure with the cap screws

making sure the different-lengthed cap screws

are in their proper location. Tighten the cap

screws to specifications.

Installing Left-Side

Components

1. Install the oil pump securing it to the crankcase

with three Phillips-head cap screws (threads

coated with red Loctite #271). Tighten securely.

FI426

FI219

2. Install the drive pin in the oil pump shaft; then

with the drive chain around both the drive

sprocket and the driven sprocket, install the

driven sprocket onto the oil pump engaging the

drive pin. Secure with the circlip.

NOTE: The sharp side of the circlip should be

facing outward.

FI421

FI200

3. Apply red Loctite #271 to the two crankshaft

balancer cap screws and tighten to specifica-

tions.

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3-300

FI432A

4. Install the cam chain tensioner making sure the

washer is in place. Tighten the shoulder-bolt to

specifications.

FI197A

5. Install the shift cam stopper, spring, and washer.

Tighten the cap screw securely making sure the

stopper arm moves freely.

FI307B

6. Install the shift cam stopper plate. Tighten

securely.

FI311

7. Install the gear shift shaft with the index mark

aligned with the index mark on the shift cam

stopper plate. Make sure there is a washer on

both ends of the gear shift shaft.

FI427

FI302

8. Install the cam chain over the cam drive

sprocket; then secure the chain out of the way to

prevent it from falling into the crankcase.

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3

FI435

9. Install the starter driven gear; then install the

key in the crankshaft.

FI193A

10. Install the spacer on the driveshaft; then install

the output drive gear and secure with the circlip.

Make sure the flat side of the circlip is directed

away from the gear.

FI430A

FI422

11. Clean any oil or grease from the crankshaft and

rotor/flywheel and secure with the flange nut.

Tighten to specifications.

FI425

FI436

12. Install the starter idler gear and shaft; then with

a washer on each side, install the starter torque

limiter and bushings.

! CAUTION

Do not turn the engine with the cam chain loose or

severe engine damage will occur.

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FI148

FI301

13. Install the two alignment pins (A) in the crank-

case; then place the gasket in position.

FI176A

NOTE: The use of alignment studs (B) will aid in

the installation of the magneto cover.

FI438A

14. Verify that the washers are properly located;

then install the magneto cover and secure with

the cap screws. Tighten only until snug.

FI185A

15. Place the starter cup into position on the crank-

shaft making sure a new, lubricated O-ring is

inside the cup. Tighten the flange nut to specifi-

cations.

CD925A

16. Tighten the cap screws (from step 14) to specifi-

cations.

17. Place the speed sensor housing and new O-ring

into position and secure with the cap screw.

Tighten securely.

18. Place the water pump into position and secure

with three cap screws. Tighten securely.

FI141A

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3

19. Place the gasket and recoil starter assembly into

position on the left-side cover; then tighten four

cap screws to specifications.

Installing Top-Side

Components

A. Piston

B. Cylinder

0732-301

NOTE: If the piston rings were removed, install

them in this sequence.

A. Install ring expander (4) in the bottom groove

of the piston; then install the thin oil rings (3)

over the expander making sure the expander

ends do not overlap. Stagger the end gaps of

the upper and lower thin oil rings according

to the illustration.

ATV-1085B

NOTE: Note the direction of the exhaust side of

the piston (5) for correct ring end gap orientation.

B. Install the middle ring (2) so the letters RN

are directed toward the top of the piston; then

install the top ring (1) with the lip directed

toward the top of the piston.

FI168A

1. Install the piston on the connecting rod making

sure there is a circlip on each side and the open

end of the circlip faces upwards.

NOTE: The piston should be installed so the ori-

entation dot is directed toward the exhaust.

FI138A

2. Place the two alignment pins into position. Place

the cylinder gasket into position; then place a

piston holder (or suitable substitute) beneath the

piston skirt and square the piston in respect to

the crankcase.

FI136A

KEY

1. Cylinder

2. Stud Bolt

3. Nut

4. Cylinder Gasket

5. Pin

6. Water Hose Union

7. Cap Screw

8. O-Ring

! CAUTION

Incorrect installation of the piston rings will result in

engine damage.

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3-304

3. Lubricate the inside wall of the cylinder; then

using a ring compressor or the fingers, compress

the rings and slide the cylinder over the piston.

Route the cam chain up through the cylinder

cam chain housing; then remove the piston

holder and seat the cylinder firmly on the crank-

case.

4. Loosely install the two nuts which secure the

cylinder to the crankcase.

FI135A

NOTE: The two cylinder-to-crankcase nuts will

be tightened in step 10.

5. Install the coolant hose onto the crankcase union

and tighten the clamp.

C. Cylinder Head

NOTE: Steps 1-5 in the preceding sub-section

must precede this procedure.

6. Place the chain guide into the cylinder.

FI443

7. Place the head gasket into position on the cylin-

der. Place the alignment pins into position; then

place the head assembly into position on the cyl-

inder.

FI134A

8. Install the five 10 mm cylinder head cap screws

and tighten in the sequence shown to an initial

torque of 2.5 kg-m (18 ft-lb); then using the

same sequence, tighten to a final torque of 3.7

kg-m (27 ft-lb).

NOTE: Apply engine oil to the threads and both

sides of the washers before installing the cylinder

head cap screws.

FI133B

9. Install the four 6 mm flange-head cap screws

and tighten to specifications. Tighten the cylin-

der-to-crankcase nuts (from step 4) securely.

! CAUTION

The cylinder should slide on easily. Do not force the

cylinder or damage to the piston, rings, cylinder, or

crankshaft assembly may occur.

! CAUTION

Care should be taken that the bottom of the chain

guide is secured in the crankcase boss.

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3

FI133C

10. Align the TDC line on the rotor/flywheel with

the index mark on the magneto cover; then

install the camshaft idler into the cam chain and

align the punch mark (1) with the index rib (2).

Adjust the idler in the chain as necessary to

align the marks.

FI447A

FI447B

11. When the idler gear is properly timed, place the

seal washer and cam chain idler shim on the cam

chain idler shaft; then install the shaft and

tighten to specifications.

FI131A

12. Install the cam chain tensioner with a new gas-

ket; then tighten the Allen-head cap screws to

specifications.

13. Install the spring and spring guide pin into the

cam chain tensioner; then with a new O-ring

installed on the tensioner plug, install the plug

and tighten to specifications.

FI159A

14. Install the proper tappet shims on the corre-

sponding valves as noted during removing; then

install the tappets as noted during removing.

FI053

! CAUTION

When checking the alignment, place tension on the

front of the chain by pulling up on the idler and rotat-

ing to the rear. The punch mark (1), index rib (2), and

gear tooth root (3) must align or engine damage will

occur. If all three cannot be aligned, remove the idler

and rotate the crankshaft one turn (360°) and repeat

step 10.

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FI054

NOTE: The tappet shims must be installed with

the numbers facing the tappet.

15. Oil the tappets, camshaft journals, and cylinder

head journals with clean engine oil; then install

the four camshaft holder alignment pins.

16. With the TDC line aligned with the index mark

on the magneto cover, install the camshafts with

the engraved marks parallel with the top of the

cylinder head and the I and E directed toward

the intake or exhaust side of the head.

FI044A

17. Install the camshaft holders on the respective

camshaft with the arrows directed toward the

cam gears; then secure with the eight cap screws

and tighten to specifications.

FI047

18. Rotate the engine through three or four revolu-

tions; then rotate to top-dead-center (TDC) on

the compression stroke and check valve adjust-

ment (see Section 2).

19. With a new gasket installed on the cylinder head

cover, apply Three Bond Sealant (p/n 0636-070)

to the camshaft end caps; then place the head

cover into position on the cylinder head.

FI040A

20. Apply engine oil to the cylinder head cover seal

washers; then install the cylinder head cover cap

screws and seal washers. Tighten in a crisscross

pattern to 1.0 kg-m (7 ft-lb). Repeat in the same

pattern to a final torque of 1.4 kg-m (10 ft-lb).

FI040B

21. Install the coolant crossover hose on the water

pump and cylinder. Tighten the clamps securely.

FI161A

22. Install the timing inspection plug on the mag-

neto cover and tighten to specifications.

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3

23. Place a new O-ring on the drive end of the

starter; then place a light coat of grease on the

O-ring and install the starter. Secure with the

two cap screws and tighten securely.

Installing

Engine/Transmission

NOTE: Arctic Cat recommends that new gaskets

and O-rings be installed whenever servicing the

ATV.

1. From the left side, place the engine/transmission

into the frame; then slide the engine rearward as

far as possible.

2. Raise the front of the engine and engage the front

drive output yoke onto the splined output shaft;

then lower the engine into the mounting brackets.

FI105B

3. Install the front through-bolt; then install the rear

through-bolt. Secure with new self-locking nuts

and tighten to specifications.

4. Align the rear drive flanges and secure with four

cap screws. Tighten to specifications.

NOTE: It is advisable to apply the brake lever

lock when tightening the cap screws securing the

rear driveshaft.

CD824

5. Secure the engine damper stopper to the frame

with the cap screws. Tighten only until snug.

FI111

6. Making sure the thermostat bleed valve is cor-

rectly oriented, install the thermostat housing

and engine damper mount; then secure with the

two cap screws and tighten to specifications.

Tighten the engine damper stopper cap screws

(from step 5) to specifications.

FI108A

FI112

7. Using a new O-ring, install the intake pipe on

the cylinder head making sure the UP mark is

directed toward the top of the engine; then

secure with the two cap screws and tighten

securely.

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FI104A

FI103

8. Install the throttle body into the intake pipe and

tighten the clamp securely.

9. Connect the ISC valve connector, TPS connec-

tor, coolant temperature sensor connector, and

fuel injector connector to the appropriate sensor;

then connect the gasline hose connector to the

fuel rail.

FI089A

FI092A

10. Secure the engine ground wire and main harness

ground to the engine at the appropriate position

on the left-side cover and tighten the cap screw

to specifications.

FI084

11. Connect the gear position indicator connector

(A), stator connector (B), and the crankshaft

position sensor connector (C) to the main wiring

harness.

FI083A

12. Connect the starter positive cable to the starter

and tighten the nut securely.

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3

FI094

13. Place the shifter arm on the shift shaft aligning

the match marks; then install the cap screw and

tighten to specifications.

FI085A

14. Connect the speed sensor connector to the hous-

ing.

15. Install the exhaust pipe to the cylinder head

using a new grafoil seal; then secure with two

nuts and finger-tighten only. Connect the

exhaust pipe to the muffler and secure with the

two exhaust springs. Tighten the two exhaust

pipe nuts securely.

16. Secure all wiring to the frame and upper engine

bracket with cable ties.

17. Secure the two coolant hoses to the engine.

18. Place the air filter housing into position on the

frame and mount the intake air pressure sensor

on the mount; then install the air diverter assem-

bly and connect and secure the inlet air duct to

the air filter housing.

FI114

FI098A

19. Secure the air filter to the throttle body and

tighten the clamp securely; then connect the air

intake temperature sensor to the harness connec-

tor.

FI099A

FI082A

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3-310

20. Secure the crankcase vent hose to the air filter

housing; then install the air filter and secure

with the air filter housing cover noting the align-

ment marks.

FI081A

FI035A

21. Connect the V-belt cooling inlet duct and outlet

boot and secure with the hose clamps. Tighten

securely.

22. Connect the spark plug cap/high tension lead to

the spark plug; then connect the primary coil

wire and ground wire to the coil. Tighten the

ground wire cap screw securely.

FI066A

23. Place the left-side footwell and foot peg in posi-

tion on the frame; then secure with existing

hardware. Tighten securely.

CD782

24. Install the front body panel with existing hard-

ware (see Section 8).

25. Place the side panels into position.

26. Place the battery into position in the battery

compartment; then install the battery cables and

vent hose. Secure with the battery cover.

27. Add proper amounts of engine/transmission oil

and coolant.

28. Install the seat.

! CAUTION

Battery acid is harmful if it contacts eyes, skin, or

clothing. Care must be taken whenever handling a

battery.

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4-1

4

SECTION 4 —

FUEL/LUBRICATION/COOLING

TABLE OF

CONTENTS

Carburetor Specifications …………….…………….….. 4-2

Carburetor Schematics (400/500/650 H1)……….….. 4-2

Throttle Body Assembly (700 EFI) …………………….. 4-2

Carburetor (400/500/650 H1) …………….…………… 4-2

Electronic Fuel Injection (700 EFI) ………..…………… 4-7

Cleaning and Inspecting Carburetor

(400/500/650 H1) ……………………….………….…….. 4-8

Throttle Cable Free-Play ….…………….…………….….. 4-9

Engine RPM (Idle)…………..…………….…………….….. 4-9

Gas Tank ……………………….…………….………….…….. 4-9

Gas/Vent Hoses …………………..…………….…………… 4-9

Electric Fuel Pump (700 EFI) ……………………….….. 4-9

Vacuum Pulse Fuel Pump (400/500/650 H1)………. 4-9

Oil Flow Charts…………….…………….………….……… 4-10

Oil Filter/Oil Pump ………..…………….………….……… 4-11

Testing Oil Pump Pressure….…………….……………. 4-11

Oil Cooler (400)………………………….…………….…… 4-12

Oil Cooler (650 H1) …………………….…………….…… 4-12

Liquid Cooling System (500/650 H1/700 EFI)……. 4-13

Radiator…….…………….………….…………….…………. 4-13

Hoses/Thermostat (500/650 H1/700 EFI) …………. 4-14

Fan …………..…………….………….…………….…………. 4-14

Servicing Water Pump

(500 — Manual Transmission)………..……………. 4-14

Servicing Water Pump (500/650 H1/700 EFI

— Automatic Transmission)……………..……………. 4-15

Testing Electric Fuel Pump (700 EFI)…….…………. 4-18

Testing Vacuum Pulse Fuel Pump

(400/500/650 H1) ……………………….………….…… 4-20

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4-2

Carburetor

Specifications

Carburetor Schematics

(400/500/650 H1)

0739-656

Throttle Body Assembly

(700 EFI)

0741-277

Carburetor

(400/500/650 H1)

REMOVING

1. Remove the seat.

2. As necessary to access the carburetor, remove

the air-intake snorkel, the air cleaner housing

cover, or the air cleaner housing.

3. Disconnect the gasline hose from the carburetor

to the fuel pump.

4. Loosen the flange clamps; then remove the car-

buretor from the intake pipe.

5. Remove the screw securing the throttle actuator

cover to the carburetor; then remove the cover.

ITEM 400 500 650 H1

Carburetor Keihin

CVK34

Keihin

CVK36

Keihin

CVK36

Main Jet 135 138 132

Slow Jet 384040

Pilot Screw Setting

(turns)

1 3/4 1 3/4 1 1/4

Jet Needle NAZG NFKG NFKS

Idle RPM (engine warm) 1250-1350 1250-1350 1250-1350

Starter Jet 758585

Float Arm Height 17 mm

(0.7 in.)

17 mm

(0.7 in.)

17 mm

(0.7 in.)

Throttle Cable

Free-Play (at lever)

3-6 mm

(1/8-1/4 in.)

3-6 mm

(1/8-1/4 in.)

3-6 mm

(1/8-1/4 in.)

KEY

1. Cover

2. Screw

3. Spring

4. Vacuum Piston

5. Spring Seat

6. Jet Needle

7. Needle Jet

8. Jet Holder

9. Main Jet

10. Slow Jet

11. Starter Jet

12. Float Valve

13. Clip

14. Float

15. Float Pin

16. Pilot Screw

17. Spring

18. Washer

19. O-Ring

20. Idle Adjust

Screw

21. Washer

22. Spring

23. Plate

24. Screw

25. Electric Choke

26. Choke Cover

27. Float Chamber

Assy

28. O-Ring

29. Screw

30. Spring

31. Diaphragm

Assy

32. Pump Housing

33. U-Ring

34. Screw

35. Screw

36. Throttle Cable

37. Cover

38. Screw

39. Vent Hose

! WARNING

Whenever any maintenance or inspection is per-

formed on the fuel system during which there may

be fuel leakage, there should be no welding, smok-

ing, open flames, etc., in the area.

KEY

1. Throttle Cable

2. ISC Valve

3. O-Ring

4. Cover

5. Sensor Assy

6. Screw

7. Screw

8. Hose

9. Injector Assy

10. O-Ring

11. Seal

12. Delivery Pipe

13. Air Pressure Sensor

14. Holder

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4-3

4

CC743

6. Remove the throttle cable from the actuator arm.

CC742

7. Loosen the outer jam nut securing the throttle

cable to the carburetor body; then route the

cable out of the way.

CC741

8. Disconnect the electric choke lead from the wir-

ing harness.

9. Disconnect the vent hose; then remove the car-

buretor.

DISASSEMBLING

1. Remove the four Phillips-head screws securing

the top cover; then remove the cover.

CH015D

2. Remove the vacuum piston assembly from the

carburetor body. Account for a spring, spring

seat, and the jet needle.

CC746

3. Remove the three screws securing the pump

housing. Account for the diaphragm assembly,

spring, and U-ring (in the housing).

CC748

4. Remove the Phillips-head screws securing the

float chamber; then remove the chamber.

Account for the O-ring.

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4-4

CC749

CC750

5. Remove the float pin.

CC752

6. Lift the float assembly from the carburetor.

Account for the float valve.

CC753

NOTE: Note the locations of the jets, pilot screw,

and holder for disassembling procedures.

CC761A

7. Secure the needle jet holder with a wrench; then

remove the main jet.

8. Remove the needle jet holder; then remove the

needle jet, slow jet, and the starter jet.

9. Remove the pilot screw. Account for a spring,

washer, and an O-ring.

CC758

10. Unscrew and remove the idle adjust screw.

Account for the spring and washer.

ASSEMBLING

1. Screw the idle adjust screw into the carburetor

making sure the washer and spring are properly

positioned.

2. Install the pilot screw, spring, washer, and

O-ring.

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4

CC758

NOTE: Turn the pilot screw clockwise until it is

lightly seated; then turn it counterclockwise the

recommended number of turns as an initial set-

ting.

NOTE: Note the locations of the jets and holder

during assembling procedures.

CC761A

3. Install the slow jet. Tighten securely.

4. Install the main jet into the needle jet holder and

tighten securely; then install the needle jet and

needle jet holder assembly into the carburetor

and tighten securely.

5. Place the float assembly (with float valve) into

position and secure to the carburetor with the

float pin.

CC753

NOTE: Check float arm height by placing the car-

buretor on its side w/float contacting the needle;

then measure with a caliper the height when the

float arm is in contact with the needle valve. Float

arm height should be 17 mm (0.7 in.).

6. Place the float chamber into position making

sure the O-ring is properly positioned; then

secure with the Phillips-head screws.

CC750

CC749

7. Place the U-ring into the pump housing. Posi-

tion the spring and diaphragm assembly (lip

toward the carburetor) onto the carburetor; then

secure the assembly with the pump housing and

three screws. Tighten securely.

CC748

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4-6

8. Place the jet needle, spring seat, and spring into

the vacuum piston; then place the assembly

down into the carburetor.

CC746

9. Place the top cover into position; then secure

with the Phillips-head screws. Tighten securely.

CH015D

INSTALLING

1. Connect the gas and vent hoses onto the carbu-

retor.

2. Connect the electric choke lead to the wiring

harness.

CC740A

3. Place the throttle cable into position and secure

by tightening the outer jam nut.

CC741

4. Connect the throttle cable to the actuator arm.

CC742

5. Place the throttle actuator cover into position on

the carburetor; then secure with the screw.

! CAUTION

It is important to press down on the pump housing

until it contacts the carburetor to make sure the dia-

phragm lip is properly seated in the groove in the

carburetor. If the diaphragm is not properly seated,

leakage will occur.

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4-7

4

CC743

6. Position the carburetor in the air cleaner boot

and intake pipe assembly; then secure with the

clamps.

7. Connect the hose from the carburetor to the gas

tank.

8. As necessary, secure the air-intake snorkel, the

air cleaner housing cover, or the air cleaner

housing.

9. Install the seat.

Electronic Fuel Injection

(700 EFI)

TROUBLESHOOTING

1. Verify that the electric fuel pump is operating by

listening for a “whirring” sound for several sec-

onds after the ignition switch is turned to the ON

position. If no sound can be heard, see Testing

Electric Fuel Pump (700 EFI) in this section.

2. Check for a flashing EFI icon on the LCD dis-

play. If EFI is flashing, see ECU Error Codes

(700 EFI) in Section 5.

3. Make sure there is sufficient, clean gas in the

gas tank.

4. Verify that the battery is sufficiently charged to

crank the engine over at normal speed.

5. Check the air filter housing and air filter for con-

tamination. Clean or replace as necessary (see

Section 2).

REMOVING

1. Turn the ignition switch to the OFF position;

then remove the ignition switch key.

2. Disconnect the battery; then remove the seat.

3. Remove the storage compartment cover and air

filter housing cover; then remove the air filter.

4. Loosen the clamp securing the air filter housing

boot to the throttle body inlet; then remove the

boot from the throttle body.

FI081B

5. Slowly disconnect the gasline hose connector

from the fuel rail.

FI092A

6. Remove the screw securing the throttle actuator

cover to the throttle body; then remove the cover.

7. Remove the throttle cable from the actuator arm.

! WARNING

Whenever any maintenance or inspection is per-

formed on the fuel system during which there may

be fuel leakage, there should be no welding, smok-

ing, open flames, etc., in the area.

! WARNING

Do not turn the ignition switch to the ON position

with the hoses removed. Gasoline will be pumped by

the electric fuel pump causing a safety hazard.

! WARNING

Gasoline may be under pressure. Place an absor-

bant towel under the connector to absorb any gaso-

line spray when disconnecting.

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4-8

8. Loosen the outer jam nut securing the throttle

cable to the throttle body; then route the cable

out of the way.

9. Remove the four electrical connectors from the

throttle body components.

FI089A

10. Remove the cap screws securing the intake pipe

to the cylinder head and remove the throttle

body assembly; then remove the intake pipe

from the throttle body. Account for an O-ring.

FI104A

11. Use tape to cover and seal the intake opening.

INSTALLING

1. Install the throttle body into the intake pipe and

secure with the clamp. Tighten securely.

2. Place a new O-ring in the intake pipe; then posi-

tion the pipe onto the engine and secure with

two cap screws.

3. Connect the throttle cable to the throttle body

and adjust throttle free-play (see Section 2); then

connect the gasline hose.

4. Connect the four electrical connectors to the

throttle body components.

5. Install the air filter housing boot and secure with

the clamp; then install the air filter, air filter

cover, storage compartment, and storage com-

partment cover.

6. Install the seat making sure it locks securely in

place.

Cleaning and Inspecting

Carburetor

(400/500/650 H1)

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Place all metallic components in a wire basket

and submerge in carburetor cleaner.

2. Soak for 30 minutes; then rinse with fresh

parts-cleaning solvent.

3. Wash all non-metallic components with soap

and water. Rinse thoroughly.

4. Dry all components with compressed air only

making sure all holes, orifices, and channels are

unobstructed.

5. Inspect the carburetor body for cracks, nicks,

stripped threads, and any other imperfections in

the casting.

6. Inspect the vacuum piston/diaphragm for cracks,

imperfections in the casting, or cracks and tears

in the rubber.

7. Inspect float for damage.

8. Inspect gasket and O-rings for distortion, tears,

or noticeable damage.

9. Inspect tips of the jet needle, pilot screw, and the

needle jet for wear, damage, or distortion.

! CAUTION

Any objects or liquid entering the intake opening will

fall into the engine causing severe damage if the

engine is turned over or started.

! WARNING

When drying components with compressed air,

always wear safety glasses.

! CAUTION

DO NOT place any non-metallic components in

parts-cleaning solvent because damage or deterio-

ration will result.

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4-9

4

10. Inspect the slow jet and main jet for obstructions

or damage.

NOTE: If the slow jet is obstructed, the mixture

will be extremely lean at idle and part-throttle oper-

ation.

11. Inspect the float valve for wear or damage.

12. Inspect the carburetor mounting flange for dam-

age and tightness.

Throttle Cable

Free-Play

To adjust throttle cable free-play, see Section 2.

Engine RPM (Idle)

(Carbureted Models)

To adjust the idle RPM, see Section 2.

Gas Tank

REMOVING

1. Remove the seat.

2. Remove the rear rack and fenders (see Section 8).

3. Disconnect the hose from the fuel pump to the

carburetor/throttle body.

4. Remove the cap screws securing the gas tank to

the frame.

5. Disconnect the fuel gauge connector; then

remove the gas tank.

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all gas tank components with parts-clean-

ing solvent.

2. Inspect all hoses for cracks or leaks.

3. Inspect tank cap and tank for leaks, holes, and

damaged threads.

INSTALLING

1. Place the gas tank into position in the frame;

then install the cap screws. Tighten securely.

2. Connect the gas hose from the carburetor/throt-

tle body; then connect the fuel gauge connector.

3. Install the vent hose; then fill the gas tank with

gasoline.

4. Start the engine and inspect for leakage.

5. Install the rear fenders and rack (see Section 8);

then install the seat making sure it latches

securely.

Gas/Vent Hoses

Replace the gas hose every two years. Damage from

aging may not always be visible. Do not bend or

obstruct the routing of the carburetor/throttle body

vent hose. Make certain that the vent hose is

securely connected to the carburetor/throttle body

and the opposite end is always open.

Electric Fuel Pump

(700 EFI)

The electric fuel pump and fuel level sensor are not

serviceable components. If either fails, the fuel

pump assembly must be replaced.

NOTE: To test the fuel pump, see Testing Electric

Fuel Pump (700 EFI) in this section.

Vacuum Pulse Fuel

Pump

(400/500/650 H1)

The vacuum pulse fuel pump is not a serviceable

component. If the pump fails, it must be replaced.

! WARNING

Whenever any maintenance or inspection is made

on the fuel system during which there may be fuel

leakage, there should be no welding, smoking, open

flames, etc., in the area.

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4-10

Oil Flow Charts

ATV-0111

ATV-1102

FI449

Driveshaft

Left End Bearing

Driveshaft

Secondary

Input Gears

Driveshaft Gears

and Reverse Gears

Bevel Gears

Secondary

Idle Gears

Countershaft Gears

Countershaft

Left End Bearing

Countershaft

Primary Driven

Gear Spacer

Second Clutch

Drive and Driven Plates

Intake and Exhaust

Cam Faces

Intake Rocker

Arm Shaft

Camshaft

Cylinder Head

Cylinder

Oil Gallery

Oil Filter

Oil Pump

Oil Strainer

Oil Sump

Cam Drive Chain

Starter Gear

Conrod Big-End

Bearing

Crankshaft

Crankshaft Right

End Bearing

Cylinder Wall

Piston Wall

Piston Ring

One-Way Clutch

First Clutch

Shoe

Relief Valve

400/500

(Manual Transmission)

Relief Valve

Crankshaft Right End

Bearing

Crankshaft

First Clutch Shoe

Conrod Big-End Bearing

Cylinder Wall

Piston Wall

Piston Ring

Starter Clutch

Cam Drive Chain

OIL SUMP

Bevel Gears Driveshaft Gears

& Reverse Gears

Oil Gallery

Oil Filter

Oil Pump

Oil Strainer

Cylinder

Cylinder Head

Cylinder Head Cover

Camshaft

Intake,

Rocker Arm Shaft

Intake and Exhaust

Cam Faces

400/500/650 H1

(Automatic Transmission) 700 EFI

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4

Oil Filter/Oil Pump

NOTE: Whenever internal engine components

wear excessively or break and whenever oil is con-

taminated, the oil pump should be replaced. The

oil pump is not a serviceable component.

Testing Oil Pump

Pressure

NOTE: The engine must be warmed up to the

specified temperature for this test.

1. Connect the Tachometer (p/n 0644-275) to the

engine.

2. Connect the Oil Pressure Test Kit (p/n

0644-495) to the oil filter drain plug (400/500),

in the oil pressure test port (700 EFI), or to the

upper oil cooler hose at the engine (650 H1).

CD457B

PR265B

FI439A

NOTE: Some oil seepage may occur when

installing the oil pressure gauge. Wipe up oil resi-

due with a cloth.

3. Start the engine and run at 3000 RPM. The oil

pressure gauge must read as specified.

NOTE: If the oil pressure is lower than specified,

check for an oil leak, damaged oil seal, defective

oil pump, or oil cooler.

400 (Manual Transmission)

OIL PRESSURE

0.6-1.0 kg/cm² (9-14 psi)

Oil Temperature — 60°C (140°F)

400 (Automatic Transmission)

OIL PRESSURE

1.1-1.5 kg/cm² (16-21 psi)

Oil Temperature — 60°C (140°F)

500 (Manual Transmission)

OIL PRESSURE

1.2-1.6 kg/cm² (17-23 psi)

Oil Temperature — 60°C (140°F)

500 (Automatic Transmission)

OIL PRESSURE

1.3-1.7 kg/cm² (18-24 psi)

Oil Temperature — 60°C (140°F)

650 H1

OIL PRESSURE (From Oil Cooler)

1.40-2.46 kg/cm² (15-25 psi)

Oil Temperature — 60°C (140°F)

700 EFI

OIL PRESSURE

1.4-1.8 kg/cm² (20-26 psi)

Oil Temperature — 110°C (230°F)

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4-12

NOTE: If the oil pressure is higher than speci-

fied, check for too heavy engine oil weight (see

Section 2), clogged oil passage, clogged oil filter,

or improper installation of the oil filter.

Oil Cooler

(400)

0739-573

REMOVING

NOTE: It is not necessary to drain the engine oil

for this procedure.

1. Remove the input and output hoses from the fit-

tings on the cooler.

2. Remove the cap screws securing the oil cooler

to the frame. Account for grommets.

AL651D

3. Remove the oil cooler from the frame.

INSTALLING

1. Place the cooler into position in the frame.

2. Secure the cooler to the frame with the cap

screws and grommets.

AL651D

3. Install the hoses onto their respective fittings

and secure with the clamps.

Oil Cooler

(650 H1)

REMOVING

1. Disconnect the oil hoses from the oil cooler

located on the back of the radiator.

2. Remove the radiator (see Radiator) in this sec-

tion.

3. Remove the fan and fan shroud; then separate

the oil cooler from the radiator.

INSTALLING

1. Place the oil cooler into position on the radiator

and secure with the retainer brackets; then

install the fan shroud and fan.

2. Install the radiator (see Radiator) in this section.

3. Connect the oil hoses to the oil cooler and

tighten the clamps securely.

4. Warm up the engine and check for leaks; then

shut off the engine and check for the proper oil

level on the oil level stick. Add sufficient

amount of oil to raise the level above the lower

level mark.

! CAUTION

Elevate and secure the hoses to avoid oil spillage.

KEY

1. Oil Cooler Assy

2. Oil Cooler

3. Screen

4. Thumb Screw

5. Shroud

6. Machine Screw

7. Fan

8. Drain Plug

9. O-Ring

10. Grommet

11. Nut w/Washer

12. Shoulder Screw

13. Bushing

14. Clamp

15. Hose

16. Fitting

17. O-Ring

18. Cap Screw

19. Fitting

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4-13

4

Liquid Cooling System

(500/650 H1/700 EFI)

The cooling system should be inspected daily for

leakage and damage. Also, the coolant level should

be checked periodically.

To check the cooling system, see Section 2.

Radiator

0732-411

REMOVING

1. Drain the coolant at the engine.

2. Remove the front rack (see Section 8).

3. Remove the front bumper and front fender panel

(see Section 8).

4. Remove the upper and lower coolant hoses.

5. Remove the cap screws and nuts securing the

radiator to the frame.

6. Disconnect the fan wiring from the main wiring

harness; then remove the radiator/fan assembly

and account for the grommets and collars.

7. Remove the fan/fan shroud assembly from the

radiator.

CC863

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Flush the radiator with water to remove any con-

taminants.

2. Inspect the radiator for leaks and damage.

3. Inspect all hoses for cracks and deterioration.

4. Inspect all fasteners and grommets for damage

or wear.

INSTALLING

1. Position the fan/fan shroud assembly on the

radiator; then secure with existing hardware.

2. Place the radiator with grommets and collars

into position on the frame; then install the cap

screws and nuts. Tighten securely.

3. Install the upper and lower coolant hoses; then

secure with hose clamps.

AF734D

4. Install the front bumper and front fender panel

(see Section 8).

5. Install the front rack (see Section 8).

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4-14

6. Fill the cooling system with the recommended

amount of antifreeze. Check for leakage.

7. Connect the fan wiring to the main wiring har-

ness.

Hoses/Thermostat

(500/650 H1/700 EFI)

REMOVING

1. Drain approximately one qt of coolant from the

cooling system.

2. Remove the two cap screws securing the ther-

mostat housing to the cylinder head. Account for

an O-ring and a thermostat.

INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Inspect the thermostat for corrosion, wear, or

spring damage.

2. Using the following procedure, inspect the ther-

mostat for proper operation.

A. Suspend the thermostat in a container filled

with water.

B. Heat the water and monitor the temperature

with a thermometer.

C. The thermostat should start to open at

73.5-76.5° C (164-170° F) on the 500/650 H1

and 80.5-83.5° C (177-182° F) on the 700

EFI.

D. If the thermostat does not open, it must be

replaced.

3. Inspect all coolant hoses, connections, and

clamps for deterioration, cracks, and wear.

NOTE: All coolant hoses and clamps should be

replaced every four years or 4000 miles.

INSTALLING

1. Place the thermostat and O-ring into the thermo-

stat housing; then secure the thermostat housing

to the cylinder head with the two cap screws.

2. Install the crossover coolant hose onto the water

pump and engine water inlet. Secure with the

two hose clamps.

3. Slide the upper hose onto the thermostat housing

and radiator. Secure with the two hose clamps.

4. Install the lower coolant hose onto the water

pump housing and radiator. Secure with the two

hose clamps.

5. Fill the cooling system with the recommended

amount of antifreeze. Check for leakage.

Fan

REMOVING

1. Remove the radiator (see Radiator in this sec-

tion).

2. Remove the fan assembly from the radiator.

INSTALLING

1. Position the fan assembly on the radiator; then

secure with existing hardware.

NOTE: The fan wiring must be in the upper-right

position.

2. Install the radiator (see Radiator in this section).

Servicing Water Pump

(500 — Manual Transmission)

REMOVING/DISASSEMBLING

0738-290

1. Drain the coolant.

KEY

1. Case

2. Cap Screw

3. Gasket

4. O-Ring

5. Impeller

6. Mechanical Seal

7. Seal

8. Cap Screw

9. Washer

10. Washer

11. Cap Screw

12. Cap Screw

13. Shaft w/Bearing

14. Joint

15. Pin

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4-15

4

2. Remove the three cap screws securing the water

pump case. Note the position of the long cap

screw and account for the O-ring.

3. Remove the impeller cap screw, washer, and

gasket.

4. Remove the mechanical seal using this proce-

dure.

A. Tap the tip of a small sheet metal screw into

the inner-metal edge of the seal.

B. Grip the screw with a pair of vise-grip pliers

and pull the seal out. Account for the pump

drive seal.

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all pump components in solvent.

2. Inspect the mechanical seal and pump drive seal

for damage.

NOTE: If the mechanical seal and/or pump drive

seal are damaged, they must be replaced as a set.

3. Inspect the impeller for corrosion or damage.

ASSEMBLING/INSTALLING

NOTE: Treat seals and O-rings with clean anti-

freeze for initial lubrication.

1. Press the mechanical seal with pump drive seal

into the impeller by hand.

2. Install the mechanical seal assembly onto the

water pump shaft and secure with the cap screw,

washer, and gasket. Tighten the cap screw

securely.

3. Place the water pump case into position and

secure with the three cap screws. Note the posi-

tion of the long cap screw from removal.

4. Fill the cooling system with the recommended

amount of antifreeze.

NOTE: While the cooling system is being filled,

air pockets may develop; therefore, run the engine

for five minutes after the initial fill, shut the engine

off, and then fill the cooling system.

5. Check the entire cooling system for leakage.

Servicing Water Pump

(500/650 H1/700 EFI —

Automatic Transmission)

NOTE: When servicing the water pump, it will be

necessary to install a new oil seal and a new

mechanical seal.

0737-766

REMOVING

1. Remove the radiator cap; then remove the water

pump drain and drain the coolant.

CC789

2. Drain the oil from the engine/transmission.

3. Remove the four torx-head cap screws securing

the front and rear fenders to the footrest; then

remove the four cap screws securing the footrest

to the frame. Remove the footrest.

KEY

1. Water Pump

Assy

2. Cap Screw

(Drain)

3. Gasket

4. O-Ring

5. Impeller/Shaft

6. Mechanical

Seal

7. Oil Seal

8. Bearing

9. E-Ring

10. O-Ring

11. Screw

12. Cap Screw

13. Driven Gear

14. Shaft

15. Pin

16. Circlip

17. Shaft

18. Circlip

19. Drive Gear

20. Pin

21. Circlip

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4-16

4. From inside the left-front wheel-well, remove

the two torx-head cap screws securing the

fender to the frame.

CC788A

5. Compress the tabs on the coolant hose clamps

and slide the clamps away from the hose ends

approximately 51 mm (2 in.); then remove both

hoses from the water pump.

CC784

6. Using an impact driver, loosen but do not

remove the two Phillips-head cover screws.

CC785A

7. Remove the two cap screws securing the water

pump to the engine; then remove the water

pump.

CC786A

DISASSEMBLING

1. Finish removing the two Phillips-head cap

screws securing the cover to the bearing hous-

ing; then remove the cover. Account for the

O-ring.

2. Remove the E-ring securing the impeller/shaft

to the bearing housing; then remove the impel-

ler/shaft.

3. Using Seal Removal Tool (p/n 0644-072),

remove the mechanical seal and the oil seal from

the bearing housing.

CC772

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all oil-pump components in cleaning sol-

vent.

2. Inspect the impeller/shaft for corrosion or dam-

age.

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4

ASSEMBLING

1. Place the new oil seal into the bearing housing;

then using a seal driver, gently tap the seal down

until it is fully seated.

CC778

2. Place the new mechanical seal into the bearing

housing; then tap it down until it is fully seated.

NOTE: A large deep-well socket can be used to

drive the seal down evenly.

3. Install the impeller/shaft assembly into the bear-

ing housing; then secure with the E-ring.

NOTE: Make sure the E-ring is fully seated and

the impeller rotates freely.

4. While holding the bearing housing assembly in

position on the engine, slowly rotate the impel-

ler until the impeller/shaft engages properly

with its slot in the driven shaft.

NOTE: The bearing housing will be flush with the

engine when the two shafts are properly engaged.

5. With the bearing housing assembly in position

on the engine, place the cover (with O-ring

installed) into position on the housing; then

loosely secure with the two Phillips-head cap

screws.

INSTALLING

1. Secure the water pump to the engine with the

two cap screws tightened securely; then tighten

the two Phillips-head cap screws securely.

CC786A

CC785A

2. Connect the two coolant hoses to the water

pump and secure with the clamps.

3. From inside the left-front wheel-well, secure the

fender to the frame with the two torx-head cap

screws. Tighten securely.

CC788A

4. Place the footrest into position on the frame and

loosely secure with four cap screws; then secure

the front and rear fenders to the footrest with the

four torx-head cap screws. Tighten the four

torx-head cap screws securely; then tighten the

remaining cap screws to specifications.

5. Fill the engine/transmission with the proper

amount of recommended oil.

6. Fill the cooling system with the proper amount

of recommended coolant.

! CAUTION

Failure to properly engage the two shafts could

cause serious engine damage.

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NOTE: While the cooling system is being filled,

air pockets may develop; therefore, run the engine

for five minutes after the initial fill, shut the engine

off, and then fill the cooling system.

7. Check the entire cooling system for leakage.

Testing Electric

Fuel Pump

(700 EFI)

1. Turn the ignition switch ON and listen for a

momentary “whirring” sound of the pump build-

ing pressure. If the sound is heard (10 seconds),

no electrical checks are necessary. Turn the igni-

tion switch OFF.

2. Disconnect the gasline hose from the throttle

body; then install a suitable pressure gauge.

FI092A

3. Turn the ignition switch to the ON position. The

fuel pressure should build until the pump shuts

off. Pressure should read 3.0 kg-cm2 (43 psi).

4. If the pump is not running, disconnect the fuel

pump/tank sensor connector by reaching under

the rear rack from behind.

5. Connect a multimeter to the power supply leads

with the red tester lead to the red wire and the

black tester lead to the black wire; then turn the

ignition switch to the ON position. The meter

should read battery voltage. If battery voltage is

indicated and the fuel pump does not run,

replace the pump assembly. If no battery voltage

is indicated, check the ECU and the vehicle tilt

sensor.

REMOVING

1. Remove the rear rack and fenders (see Section

8); then disconnect the power supply/ fuel gauge

connector.

2. Remove the spring clamp; then remove the fuel

hose.

3. Remove the screws securing the fuel pump to

the gas tank; then make a reference mark on the

fuel pump and tank.

4. Lift out the fuel pump assembly carefully tilting

it forward to clear the voltage regulator; then

guide the pump and float lever through the

opening in the gas tank.

5. Using duct tape or other suitable means, cover

the fuel pump opening.

! CAUTION

After operating the ATV for the initial 5-10 minutes,

stop the engine, allow the engine to cool down, and

check the coolant level. Add coolant as necessary.

! WARNING

Whenever any maintenance or inspection is made

on the fuel system during which there may be fuel

leakage, there should be no welding, smoking, open

flames, etc., in the area.

AT THIS POINT

Prior to removing the electric fuel pump, the follow

ing check should be performed to determine that

removal is necessary.

! WARNING

Gasoline may be under pressure. Place an absor-

bant towel under the connector to absorb any gaso-

line spray when disconnecting.

! CAUTION

Take care not to damage the float or float arm or

replacement of the entire assembly will be neces-

sary.

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4-19

4

INSPECTING

1. Inspect the fuel screen and blow clean with low

pressure compressed air.

2. Move the float lever and check for free move-

ment. The float assembly should return to the

lower position without force. If not, replace the

fuel pump assembly.

3. Test the fuel gauge tank sensor by connecting a

multimeter (A) to the fuel sensor leads (B); then

select OHMS. The multimeter should show 5

ohms at full fuel position (C) and 95 ohms at

empty fuel position (D).

ATV2116

NOTE: If readings are erratic, clean the resistor

wiper and resistor with clean alcohol and retest. If

still not correct, replace the fuel gauge tank sensor.

4. To replace the fuel gauge tank sensor, use the

following procedure.

A. Disconnect the two-wire connector (A); then

press the fuel gauge tank sensor toward the

top of the fuel pump to release it from the

mounting slot (B).

FI460A

B. Engage the tabs (C) of the fuel gauge tank

sensor into the mounting slot (B) and press

toward the bottom of the fuel pump to latch

in place; then connect the two-wire connector

(A).

INSTALLING

1. Mark the new fuel pump with a reference mark

in the same location as the removed pump; then

place the new gasket on the pump.

2. Remove the material covering the fuel pump

opening; then carefully guide the fuel pump into

position taking care not to damage the float or

float lever.

KX190

3. Rotate the fuel pump until the match marks

align; then install the mounting screws and

tighten securely using a crisscross pattern.

NOTE: It is important to install the fuel pump

with the correct orientation to ensure adequate

float lever clearance.

4. Connect the wires, fuel hose, and spring clamp;

then turn the ignition switch to the ON position.

Note that the fuel pump runs momentarily and

the fuel gauge indicates the proper fuel level.

5. With the transmission in neutral and brake lever

lock engaged, start the engine and check for nor-

mal operation. Check for any fuel leaks.

6. Install any wire ties that were removed; then

install the rear fenders, rack, and seat making

sure the seat locks securely.

AT THIS POINT

If the pump has failed earlier test and must be

replaced, proceed to INSTALLING.

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4-20

Testing Vacuum Pulse

Fuel Pump

(400/500/650 H1)

1. Disconnect the fuel pump/carburetor hose at the

fuel pump; then connect a hose and suitable

pressure gauge to the fuel pump output fitting.

CD815

CD816

2. Start the engine. Fuel pump pressure should read

0.18-0.25 kg/cm2 (2.5-3.5 psi).

REMOVING

1. Remove the seat; then remove the three clamps

securing the gas hoses and vacuum hose and dis-

connect the hoses.

CD766A

2. Remove the two machine screws and flange nuts

securing the fuel pump to the electrical tray;

then remove the pump.

INSTALLING

1. Place the fuel pump into position on the electri-

cal tray; then secure with the machine screws

and flange nuts. Tighten securely.

2. Connect two gas hoses and one vacuum hose;

then secure with the clamps.

! WARNING

Whenever any maintenance or inspection is made

on the fuel system during which there may be fuel

leakage, there should be no welding, smoking, open

flames, etc., in the area.

AT THIS POINT

Prior to removing the vacuum pulse fuel pump, the

following check should be performed to determine

that removal is necessary.

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5-1

5

SECTION 5 —

ELECTRICAL SYSTEM

TABLE OF

CONTENTS

Specifications ………..…………….…………….…………... 5-2

Battery…………………….……………..…………….……….. 5-2

RPM Limiter.………….…………….…………….…………… 5-2

Testing Electrical Components…………..……………... 5-2

Accessory Receptacle/Connector ……………….…….. 5-3

Brakelight Switch (Auxiliary)…..…………….…………… 5-3

Brakelight Switch (Handlebar Control) ……………….. 5-3

Oil Temperature and Cooling Fan Switches (400)... 5-4

Coolant Temperature and Cooling Fan Switches

(500/650 H1) …………….…………….…………….….. 5-5

Cooling Fan Switch and Engine Coolant

Temperature (ECT) Sensor (700 EFI) …………… 5-5

Fan Motor …………..…………….………….…………….….. 5-6

Fuse Block/Power Distribution Module……………….. 5-6

Fuses …………..………………………..…………….……….. 5-7

Ignition Coil …………..…………….………….……………... 5-7

EFI Sensors/Components (700 EFI) ……..…………… 5-8

Electronic Speedometer Speed Sensor …….……….. 5-8

Ignition Switch …….………….…………….……………. 5-10

Handlebar Control Switches…..…………….…………. 5-10

Front Drive Selector Switch …………….……………. 5-11

Front Drive Selector Actuator …….……………………. 5-12

Differential Lock Switch ………………………….……… 5-12

Magneto Coils (400/500/650 H1) …….……………. 5-13

Stator Coil/Crankshaft Position (CKP) Sensor

(700 EFI) ……………………….………….……………. 5-14

Starter Motor …………………….…………….……………. 5-15

Starter Relay ……………….…………….…………….…… 5-20

CDI Unit (400/TBX/500/650 H1)………………………. 5-20

Electronic Control Unit (ECU) (700 EFI)……….…… 5-20

Regulator/Rectifier…….……………..…………….……… 5-21

Neutral Start/Front Drive Actuator/Start-in-Gear/

Differential Lock/2WD Relays…….………………. 5-21

Headlights …….…………….…………….………….……… 5-21

Taillight — Brakelight …………………………….…………. 5-21

Ignition Timing………….……………..…………….……… 5-22

ECU Error Codes (700 EFI) ..…………….……………. 5-22

Tilt Sensor (700 EFI) …….…………….…………….…… 5-23

Throttle Position Sensor (TPS) (700 EFI)…..……… 5-24

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5-2

Specifications

Battery

For battery related information, see Section 2.

RPM Limiter

NOTE: The ATV is equipped with a CDI unit that

retards ignition timing when maximum RPM is

approached. When the RPM limiter is activated, it

could be misinterpreted as a high-speed misfire.

Testing Electrical

Components

All of the electrical tests should be made using the

Fluke Model 73 Multimeter (p/n 0644-191) and when

testing peak voltage, the Peak Voltage Reading

Adapter (p/n 0644-307) must be used. If any other

type of meter is used, readings may vary due to inter-

nal circuitry. When troubleshooting a specific com-

ponent, always verify first that the fuse(s) are good,

that the bulb(s) are good, that the connections are

clean and tight, that the battery is fully charged, and

that all appropriate switches are activated.

NOTE: For absolute accuracy, all tests should be

made at room temperature of 68° F.

400

Ignition Timing 10° BTDC @ 1500 RPM

Spark Plug Type NGK CR7E

Spark Plug Gap 0.7-0.8 mm (0.028-0.032 in.)

Spark Plug Cap 8000-12,000 ohms

Ignition Coil

Resistance (primary)

(secondary)

Less than 1 ohm

(terminal to ground)

5200-7800 ohms

(high tension — plug cap

removed — to ground)

Ignition Coil

Peak Voltage (primary/

CDI)

250-375 DC volts

(terminal to ground)

MAGNETO

Magneto Coil

Resistance (trigger)

(source)

(charging)

160-240 ohms (green to blue)

Less than 1 ohm

(yellow to white)

Less than 1 ohm (black to black)

Magneto Coil

Peak Voltage (trigger)

(source)

5.04-7.56 volts (green to blue)

0.7-1.05 volts (yellow to white)

Stator Coil

Output (no load) 60 AC volts @ 5000 RPM

(black to black)

500/650 H1

Ignition Timing 10° BTDC @ 1500 RPM

Spark Plug Type NGK CR6E

Spark Plug Gap 0.7-0.8 mm (0.028-0.032 in.)

Spark Plug Cap 8000-12,000 ohms (500)

4000 ohms (650 H1)

Ignition Coil

Resistance (primary)

(secondary)

Less than 1 ohm

(terminal to ground)

5200-7800 ohms

(high tension — plug cap

removed — to ground)

Ignition Coil

Peak Voltage (primary/

CDI)

140.0-215.0 DC volts — 500

142.4-213.6 DC volts — 650 H1

(terminal to ground)

MAGNETO

Magneto Coil

Resistance (trigger)

(source)

(charging)

160-240 ohms (green to blue)

Less than 1 ohm

(yellow to white)

Less than 1 ohm (black to black)

Magneto Coil

Peak Voltage (trigger)

(source)

4.2-6.3 volts

(green to blue)

0.40-0.62 volt

(yellow to white)

Stator Coil Out-

put (no load) 60 AC volts @ 5000 RPM

(black to black)

700 EFI

Ignition Timing N/A

Spark Plug Type NGK CR6E

Spark Plug Gap 0.7-0.8 mm

(0.028-0.032 in.)

Spark Plug Cap 8000-12,000 ohms

Ignition Coil

Resistance

(primary)

(secondary)

Less than 1 ohm

(terminal (+) to terminal (-))

12k-19k ohms

(high tension — plug cap to

terminal (+))

Ignition Coil

Peak Voltage (ECU) 80 volts or more

(wire (+) to ground)

MAGNETO

Stator Coil

Resistance

(crankshaft

position

sensor)

(charging)

150-250 ohms (blue to white)

Less than 1 ohm

(yellow to yellow)

Crankshaft Position Sensor

Peak Voltage

5.0 volts or more (blue to white)

Stator Coil

Output

(no load) 75 AC volts @ 5000 RPM

(yellow to yellow)

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5-3

5

Accessory

Receptacle/Connector

NOTE: This test procedure is for either the

receptacle or the connector.

VOLTAGE

1. Turn the ignition switch to the ON position; then

set the meter selector to the DC Voltage posi-

tion.

2. Connect the red tester lead to the red/white wire

or the positive connector; then connect the black

tester lead to ground.

3. The meter must show battery voltage.

NOTE: If the meter shows no battery voltage,

troubleshoot the battery, fuse, receptacle, connec-

tor, or the main wiring harness.

Brakelight Switch

(Auxiliary)

The switch connector is the two-prong connector on

the brake switch lead above the transmission.

NOTE: The ignition switch must be in the ON

position.

VOLTAGE

(Wiring Harness Side)

1. Set the meter selector to the DC Voltage posi-

tion.

2. Connect the red tester to the orange wire; then

connect the black tester lead to ground.

AR627D

3. The meter must show battery voltage.

NOTE: If the meter shows no battery voltage,

troubleshoot the battery, fuse, switch, or the main

wiring harness.

NOTE: If the meter shows battery voltage, the

main wiring harness is good; proceed to test the

switch/component, the connector, and the switch

wiring harness for resistance.

RESISTANCE

(Switch Connector)

1. Set the meter selector to the OHMS position.

2. Connect the red tester lead to one black wire;

then connect the black tester lead to the other

black wire.

AR626D

3. When the brake pedal is depressed, the meter

must show less than 1 ohm.

NOTE: If the meter shows more than 1 ohm of

resistance, replace the switch.

Brakelight Switch

(Handlebar Control)

To access the connector, remove the access panel.

NOTE: The ignition switch must be in the ON

position.

VOLTAGE

(Wiring Harness Connector)

1. Set the meter selector to the DC Voltage posi-

tion.

2. Connect the red tester lead to the orange wire;

then connect the black tester lead to ground.

! CAUTION

Always disconnect the battery when performing

resistance tests to avoid damaging the multimeter.

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5-4

AR622D

3. The meter must show battery voltage.

NOTE: If the meter shows no battery voltage,

troubleshoot the battery, fuse, switch, or the main

wiring harness.

NOTE: If the meter shows battery voltage, the

main wiring harness is good; proceed to test the

switch/component, the connector, and the switch

wiring harness for resistance.

RESISTANCE

(Switch Connector)

NOTE: The brake lever must be compressed for

this test. Also, the ignition switch must be in the

OFF position.

1. Set the meter selector to the OHMS position.

2. Connect the red tester lead to one black wire;

then connect the black tester lead to the other

black wire.

AR621D

3. When the lever is compressed, the meter must

show less than 1 ohm.

NOTE: If the meter shows more than 1 ohm of

resistance, replace the switch.

Oil Temperature and

Cooling Fan Switches

(400)

NOTE: This model has an oil temperature switch

and a cooling fan switch.

1. Connect the meter leads (selector in the OHMS

position) to the switch contacts.

2. Suspend the switch and a thermometer in a con-

tainer of oil; then heat the oil.

NOTE: Neither the switch nor the thermometer

should be allowed to touch the bottom of the con-

tainer or inaccurate readings will occur. Use wire

holders to suspend switch and thermometer.

733-554C

3. On the oil temperature switch when the oil tem-

perature reaches 160° C (320° F), the meter

should read a closed circuit.

4. On the oil temperature switch, allow the oil to

cool, and when the temperature is at (or just

before) a temperature of 140° C (284° F), the

meter should read an open circuit.

5. On the cooling fan switch when the temperature

reaches 120° C (248° F), the meter should read a

closed circuit.

6. On the cooling fan switch, allow the oil to cool,

and when the temperature is at (or just before) a

temperature of 110° C (230° F), the meter

should read an open circuit.

7. If the readings are not as indicated, the switch

must be replaced.

8. Apply thread tape to the threads of the switch;

then install the switch and tighten securely.

9. Connect the switch leads.

! CAUTION

Always disconnect the battery when performing

resistance tests to avoid damaging the multimeter.

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5-5

5

Coolant Temperature

and Cooling Fan

Switches

(500/650 H1)

1. Connect the meter leads (selector in the OHMS

position) to the switch contacts.

2. Suspend the switch and a thermometer in a con-

tainer of water; then heat the water.

NOTE: Neither the switch nor the thermometer

should be allowed to touch the bottom of the con-

tainer or inaccurate readings will occur. Use wire

holders to suspend switch and thermometer.

733-554E

3. On the coolant temperature switch when the

water temperature reaches 112-118° C

(234-244° F), the meter should read a closed cir-

cuit.

4. On the coolant temperature switch, allow the

water to cool, and when the temperature is

within a temperature range of 108-111° C

(226-232° F), the meter should read an open cir-

cuit.

5. On the cooling fan switch when the temperature

reaches 66-68° C (150-155° F), the meter should

read a closed circuit.

6. On the cooling fan switch, allow the water to

cool, and when the temperature is within a tem-

perature range of 62-65° C (145-149° F), the

meter should read an open circuit.

7. If the readings are not as indicated, the switch

must be replaced.

8. Install the switch and tighten securely.

9. Connect the switch leads.

Cooling Fan Switch and

Engine Coolant

Temperature (ECT)

Sensor

(700 EFI)

1. Connect the meter leads (selector in OHMS

position) to the switch/sensor terminals.

2. Suspend the switch/sensor and a thermometer in

a container of water; then heat the water.

NOTE: Neither the switch/sensor nor the ther-

mometer should be allowed to touch the bottom of

the container or inaccurate readings will occur.

Use wire holders to suspend the switch/sensor

and thermometer.

3. On the cooling fan switch when the water tem-

perature reaches approximately 93° C (199° F),

the meter should read less than 1.0 ohm.

4. On the cooling fan switch, allow the water to

cool and when the temperature reaches approxi-

mately 87° C (189° F), the meter should read an

open circuit.

5. On the ECT sensor when the temperature

reaches 20° C (68° F), the meter should read

approximately 2.45k ohms.

6. On the ECT sensor when the temperautre

reaches 50° C (122° F), the meter should read

approximately 800 ohms.

7. On the ECT sensor when the temperautre

reaches 80° C (176° F), the meter should read

approximately 318 ohms.

8. On the ECT sensor when the temperautre

reaches 110° C (230° F), the meter should read

approximately 142 ohms.

9. If the readings are not as indicated, the

switch/sensor must be replaced.

10. Install the switch/sensor and tighten securely.

11. Connect the leads.

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5-6

Fan Motor

The connector is the black two-prong one located

behind the fan assembly.

NOTE: The ignition switch must be in the ON

position.

VOLTAGE

(Main Harness Connector to Fan

Motor)

1. Set the meter selector to the DC Voltage posi-

tion.

2. Connect the red tester lead to the black/red wire

(500/650 H1/700 EFI) or the black/orange wire

(400); then connect the black tester lead to

ground.

3. The meter must show battery voltage.

NOTE: If the meter shows no battery voltage,

troubleshoot the battery, fuse, motor, or the main

wiring harness.

NOTE: If the meter shows battery voltage, the

main wiring harness is good. The connector

should be checked for resistance.

RESISTANCE

(Fan Motor Connector)

1. Set the meter selector to the OHMS position.

2. Connect the red tester lead to the blue wire; then

connect the black tester lead to the black wire.

AR645D

3. The meter must show less than 1 ohm.

NOTE: If the meter shows more than 1 ohm of

resistance, troubleshoot or replace the

switch/component, the connector, or the switch

wiring harness.

NOTE: To determine if the fan motor is good,

connect the blue wire from the fan connector to a

12 volt DC power supply; then connect the black

wire from the fan connector to ground. The fan

should operate.

Fuse Block/Power

Distribution Module

The fuses are located in a power distribution module

under the seat.

If there is any type of electrical system failure,

always check the fuses first.

NOTE: The ignition switch must be in the LIGHTS

position.

1. Remove all fuses from the distribution module.

2. Set the meter selector to the DC Voltage posi-

tion.

3. Connect the black tester lead to ground.

4. Using the red tester lead, contact each end of the

fuse holder connector terminals individually.

5. The meter must show battery voltage from one

side of the connector terminal ends.

NOTE: Battery voltage will be indicated from

only one side of the fuse holder connector termi-

nal; the other side will show no voltage.

NOTE: When testing the HI fuse holder, the head-

light dimmer switch must be in the HI position;

when testing the LIGHTS fuse holder, the headlight

dimmer switch can be in either position.

NOTE: If the meter shows no battery voltage,

troubleshoot the battery, switches, distribution

module, or the main wiring harness.

! CAUTION

Always disconnect the battery when performing

resistance tests to avoid damaging the multimeter.

! CAUTION

Care should be taken to keep clear of the fan blades.

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5-7

5

Fuses

1. Set the meter selector to the OHMS position.

2. Connect the red tester lead to one spade end of

the fuse; then connect the black tester lead to the

other spade end.

3. The meter must show less than 1 ohm resis-

tance. If the meter reads open, replace the fuse.

NOTE: Make sure the fuses are returned to their

proper position according to amperage. Refer to

the fuse block cover for fuse placement.

Ignition Coil

The ignition coil is on the frame above the engine.

To access the coil, the side panel (see Section 2)

must be removed.

RESISTANCE

NOTE: For these tests, the meter selector should

be set to the OHMS position and the primary

wire(s) should be disconnected.

Primary Winding

1. Connect the red tester lead to either terminal;

then connect the black tester lead to the other

terminal or on 500 models, to a suitable ground.

CF202A

CD882B

CF234A

FI066B

2. The meter reading must be within specification.

Secondary Winding

1. Remove the plug cap from the high tension lead;

then connect the red tester lead to the high ten-

sion lead.

! CAUTION

Always disconnect the battery when performing

resistance tests to avoid damaging the multimeter.

! CAUTION

Always disconnect the battery when performing

resistance tests to avoid damaging the multimeter.

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5-8

2. On the 400/650 H1, connect the black tester lead

to either primary connector; on the 500/700 EFI,

connect the black tester lead to the coil frame or

to the primary connector.

3. The meter reading must be within specification.

NOTE: If the meter does not show as specified,

replace ignition coil.

Spark Plug Cap

1. Connect the red tester lead to one end of the cap;

then connect the black tester lead to the other

end of the cap.

AR603D

2. The meter reading must be within specification.

NOTE: If the meter does not read as specified,

replace the spark plug cap.

PEAK VOLTAGE (400)

NOTE: All of the peak voltage tests should be

made using the Fluke Model 73 Multimeter (p/n

0644-191) with Peak Voltage Reading Adapter (p/n

0644-307). If any other type of tester is used, read-

ings may vary due to internal circuitry.

NOTE: The battery must be at full charge for

these tests.

Primary/CDI

NOTE: The CDI is located beneath the seat and

fender panel near the battery.

1. Set the meter selector to the DC Voltage posi-

tion; then disconnect the blue/white primary

wire from the coil.

2. Connect the red tester lead to the primary wire;

then connect the black tester lead to ground.

3. Crank the engine over using the electric starter.

4. The meter reading must be within specification.

PEAK VOLTAGE

(500/650 H1/700 EFI)

NOTE: All of the peak voltage tests should be

made using the Fluke Model 73 Multimeter (p/n

0644-191) with Peak Voltage Reading Adapter (p/n

0644-307). If any other type of tester is used, read-

ings may vary due to internal circuitry.

NOTE: The battery must be at full charge for

these tests.

Primary/CDI (500/650 H1)/

ECU (700 EFI)

NOTE: The CDI/ECU is located beneath the seat

near the battery.

1. Set the meter selector to the DC Voltage posi-

tion; then disconnect the blue/white primary

wire from the coil.

2. Connect the red tester lead to the primary wire;

then connect the black tester lead to ground.

3. Crank the engine over using the electric starter.

4. The meter reading must be within specification.

EFI Sensors/

Components

(700 EFI)

CRANKSHAFT POSITION (CKP)

SENSOR

To test the CKP sensor, see Stator Coil/Crankshaft

Position (CKP) Sensor (700 EFI) in this section.

AIR PRESSURE SENSOR (APS)

1. Disconnect the APS connector from the pressure

sensor located on the right front-side of the air

filter housing.

2. Select DC Voltage on the tester and turn the

ignition switch to the ON position.

3. Connect the black tester lead to the black/green

wire and the red tester lead to the brown wire.

The meter should read 4.5-5.5 DC volts. If the

meter does not read as specified, check the ECU

connector or wiring.

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5-9

5

4. Connect the APS to the harness; then using

MaxiClips (p/n 0744-041), connect the red tester

lead to the brown/white wire and the black tester

lead to the black/green wire. With the engine

running at idle speed, the meter should read

approximately 2.6 DC volts.

NOTE: If the meter does not read as specified,

check the hose connecting the APS to the intake

pipe or replace the sensor.

Electronic Speedometer

Speed Sensor

NOTE: Prior to testing the speed sensor, inspect

the three-wire connector on the sensor harness

(400/500 manual models) or on the speed sensor

(500 auto/650 H1/700 EFI models) for contamina-

tion, broken pins, and/or corrosion.

CD884A

CD885B

1. Set the meter selector to the DC Voltage posi-

tion.

2. With appropriate needle adapters on the meter

leads, connect the red tester lead to the voltage

lead (V); then connect the black tester lead to

the ground lead (G).

3. Turn the ignition switch to the ON position.

4. The meter must show 6 DC volts (500 auto/650

H1/700 EFI) or 12 DC volts (400/500 manual).

5. Leave the black tester lead connected; then con-

nect the red tester lead to the signal lead (S) pin.

6. Slowly move the ATV forward or backward; the

meter must show 0 and 6 DC volts alternately

(500 auto/650 H1/700 EFI) or 0 and 12 DC volts

alternately (400/500 manual).

NOTE: If the sensor tests are within specifica-

tions, the speedometer must be replaced. See Sec-

tion 9.

To replace a speed sensor, use the following proce-

dure.

1. Disconnect the three-wire connector from the

speed sensor harness or from the speed sensor;

then remove the Allen-head cap screw securing

the sensor to the sensor housing.

2. Remove the sensor from the sensor housing

accounting for an O-ring.

CD070

3. Install the new speed sensor into the housing

with new O-ring lightly coated with multi-pur-

pose grease; then secure the sensor with the

Allen-head cap screw (threads coated with blue

Loctite #242). Tighten securely.

CD071

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5-10

Ignition Switch

On the 400/500, the connector is the black

three-wire one beneath the steering post cover. On

the 650 H1/700 EFI, the connector is a four-wire

one. To access the connector, the cover must be

removed.

VOLTAGE

NOTE: Perform this test on the lower side of the

connector.

1. Set the meter selector to the DC Voltage posi-

tion.

2. Connect the red meter lead to the red wire; then

connect the black meter lead to ground.

3. Meter must show battery voltage.

NOTE: If the meter shows no battery voltage,

troubleshoot the battery or the main wiring har-

ness.

RESISTANCE

NOTE: Perform this test on the upper side of the

connector.

1. Turn the ignition switch to the ON position.

2. Set the meter selector to the OHMS position.

3. Connect the red tester lead to the red wire; then

connect the black tester lead to the orange wire

(400/500) or to the red/black wire (650 H1/700

EFI).

4. The meter must show less than 1 ohm.

5. Turn the ignition switch to the LIGHTS posi-

tion.

6. Connect the red tester lead to the red wire; then

connect the black tester lead to the orange wire

(400/500) or to the red/black wire (650 H1/700

EFI).

7. The meter must show less than 1 ohm.

8. Connect the red tester lead to the red wire; then

connect the black tester lead to the gray wire.

9. The meter must show less than 1 ohm.

10. With the switch in the OFF position, connect the

red tester lead to the red wire and the black

tester lead to each of the remaining wires. The

meter must show an open circuit on all wires.

11. On the 650 H1/700 EFI, connect the red tester

lead to the red wire and the black tester lead to

the brown wire. With the switch in the ON posi-

tion, the meter must show 980-1020 ohms.

NOTE: If the meter shows more than 1 ohm of

resistance, troubleshoot or replace the

switch/component, the connector, or the switch

wiring harness.

Handlebar Control

Switches

The connector is the yellow one next to the steering

post. To access the connector, the steering post cover

and the right-side fender splash shield must be

removed (see Section 8).

NOTE: These tests should be made on the top

side of the connector.

RESISTANCE (HI Beam)

1. Set the meter selector to the OHMS position.

2. Connect the red tester lead to the yellow wire;

then connect the black tester lead to the gray

wire.

3. With the dimmer switch in the HI position, the

meter must show less than 1 ohm.

NOTE: If the meter shows more than 1 ohm of

resistance, troubleshoot or replace the

switch/component, the connector, or the switch

wiring harness.

RESISTANCE (LO Beam)

1. Connect the red tester lead to the white wire;

then connect the black tester lead to the gray

wire.

2. With the dimmer switch in the LO position, the

meter must show an open circuit.

! CAUTION

Always disconnect the battery when performing

resistance tests to avoid damaging the multimeter.

! CAUTION

Always disconnect the battery when performing

resistance tests to avoid damaging the multimeter.

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5-11

5

NOTE: If the meter reads resistance, trouble

shoot or replace the switch/component, the con-

nector, or the switch wiring harness.

DIODE (Starter Button)

NOTE: If voltage is not as specified, check the

condition of the battery in the meter prior to

replacing the switch. A low battery will result in a

low voltage reading during a diode test.

1. Set the meter selector to the Diode position.

2. Connect the red tester lead to the orange/white

wire; then connect the black tester lead to the

yellow/green wire.

3. With the starter button depressed, the meter

must show 0.5-0.7 DC volts.

4. With the starter button released, the meter must

show 0 DC volts.

5. Connect the red tester lead to the yellow/green

wire; then connect the black tester lead to the

orange/white wire.

6. With the starter button depressed, the meter

must show 0 DC volts.

NOTE: If the meter does not show as specified,

replace the switch/component, connector, or

switch harness.

RESISTANCE (Emergency Stop)

1. Set the meter selector to the OHMS position.

2. Connect the red tester lead to the orange wire;

then connect the black tester lead to the

orange/white wire.

3. With the switch in the OFF position, the meter

must show an open circuit.

4. With the switch in the RUN position, the meter

must show less than 1 ohm.

NOTE: If the meter shows more than 1 ohm of

resistance, troubleshoot or replace the

switch/component, the connector, or the switch

wiring harness.

RESISTANCE (Reverse Override)

The connector is the four-prong white one next to

the steering post. To access the connector, the front

rack and front fenders must be removed (see Section

8).

1. Set the meter selector to the OHMS position.

2. Connect the red tester lead to one red/yellow

wire; then connect the black tester wire to the

other red/yellow wire. The meter must show less

than 1 ohm.

3. Depress and hold the reverse override button.

The meter must show an open circuit.

4. Connect the red tester lead to the blue wire; then

connect the black meter lead to the black wire.

The meter must show an open circuit.

5. Depress and hold the reverse override button.

The meter must show less than 1 ohm.

NOTE: If the meter does not show as specified,

replace the switch/component, connector, or

switch harness.

Front Drive Selector

Switch

The connector is the two-wire black snap-lock one

in front of the steering post. To access the connector,

the cover must be removed.

NOTE: Resistance tests should be made with the

connector disconnected and on the selector-side

of the connector.

RESISTANCE

1. Set the meter selector to the OHMS position.

2. Connect the red tester lead to the red wire; then

connect the black tester lead to the white wire.

3. With the selector switch in the 2WD position,

the meter must show a closed circuit.

4. With the selector switch in the 4WD position,

the meter must show an open circuit.

NOTE: If the meter does not show as specified,

replace the front drive selector switch.

VOLTAGE

NOTE: The battery must be connected when per-

forming voltage tests.

1. Set the meter selector to the DC Voltage posi-

tion.

! CAUTION

Always disconnect the battery when performing

resistance tests to avoid damaging the multimeter.

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5-12

2. Connect the black tester lead to the negative bat-

tery terminal.

3. Connect the red tester lead to the red wire on the

harness side of the connector.

4. Turn the ignition switch to the RUN position.

5. The meter must show 12 DC volts.

NOTE: If the meter shows other than specified,

check the harness, connector, 30 amp fuse, and

battery connections.

Front Drive Selector

Actuator

NOTE: With the engine stopped and the ignition

switch in the ON position, a momentary “whirring”

sound must be noticeable each time the selector

switch is moved to 2WD and 4WD. Test the switch,

30 amp fuse, and wiring connections prior to test-

ing the actuator.

NOTE: The differential must be in the unlocked

position for this procedure.

VOLTAGE

1. Select the 2WD position on the front drive

selector switch; then disconnect the connector

on the actuator wiring harness.

2. With the ignition switch in the OFF position,

connect the black tester lead to the black wire in

the supply harness; then connect the red tester

lead to the orange wire in the supply harness.

3. Turn the ignition switch to the ON position. The

meter must show 12 DC volts.

4. Connect the red tester lead to the white/red wire

in the supply harness. The meter must show 12

DC volts.

5. Select the 4WD position on the front drive

selector switch; then connect the red tester lead

to the white/red wire in the supply harness. The

meter must show 0 DC volts.

NOTE: The 4WD icon on the LCD should illumi-

nate.

6. Connect the red tester lead to the orange wire in

the supply harness. The meter must show 12 DC

volts.

NOTE: If the voltage readings are as specified

and the actuator does not function correctly,

replace the actuator (see Section 6).

Differential Lock

Switch

NOTE: The following procedure does not include

the 400 TRV model.

VOLTAGE

1. Select DC Voltage on the multimeter; then con-

nect the red tester lead to the switch terminal

(leaving the wire connected) and the black tester

lead to ground.

CD575

2. Turn the ignition switch to the ON position. The

meter must show 12 DC volts.

NOTE: If no voltage is indicated, check the wiring

harness, fuse, or battery connections.

3. Select the lock position on the differential. The

meter should drop to 0 volts, and the front drive

selector actuator switch should operate to

engage 4-wheel drive.

NOTE: It may be necessary to rock the ATV

slightly to engage the differential lock fully.

NOTE: The 4WD and the LOCK icons on the LCD

should illuminate.

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5

CD576

CF094C

4. If the differential lock engages (front wheels

locked) and the voltage does not drop to 0, the

switch is faulty and must be cleaned or replaced.

Magneto Coils

(400/500/650 H1)

VOLTAGE

(Stator Coil — Regulated Output)

1. Set the meter selector to the DC Voltage posi-

tion.

2. Connect the red tester lead to the positive bat-

tery post; then connect the black tester lead to

the negative battery post.

3. With the engine running at a constant 5000 RPM

(with the headlights on), the meter must show

14-15.5 DC volts.

NOTE: If voltage is lower than specified, test sta-

tor coil — no load.

VOLTAGE

(Stator Coil — No Load)

The connector is the black three-pin one on the right

side of the engine just above the starter motor.

NOTE: Test the connector that comes from the

engine.

1. Set the meter selector to the AC Voltage position.

2. Test between the three black wires for a total of

three tests.

3. With the engine running at the specified RPM,

all wire tests must show 60 AC volts.

NOTE: If both stator coil tests failed, check all

connections, etc., and test again. If no voltage is

present, replace the stator assembly.

RESISTANCE

(Charging Coil)

1. Set the meter selector to OHMS position.

2. Test between the three black wires for a total of

three tests.

3. The meter reading must be within specification.

RESISTANCE

(Trigger Coil)

1. Disconnect the gray four-pin connector on the

right side of the engine just above the starter

motor.

2. Set the meter selector to the OHMS position.

3. Connect the red tester lead to the green wire; then

connect the black tester lead to the blue wire. The

meter reading must be within specification.

! CAUTION

Do not run the engine at high RPM for more than 10

seconds.

! CAUTION

Do not run the engine at high RPM for more than 10

seconds.

! CAUTION

Always disconnect the battery when performing

resistance tests to avoid damaging the multimeter.

! CAUTION

Always disconnect the battery when performing

resistance tests to avoid damaging the multimeter.

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5-14

RESISTANCE

(Source Coil)

1. Set the meter selector to the OHMS position.

2. Connect the red tester lead to the yellow wire;

then connect the black tester lead to the white

wire.

3. The meter reading must be within specification.

NOTE: If the meter shows other than specified in

any resistance test, replace the stator assembly.

PEAK VOLTAGE (400)

NOTE: All of the peak voltage tests should be

made using the Fluke Model 73 Multimeter (p/n

0644-191) with Peak Voltage Reading Adapter (p/n

0644-307). If any other type of tester is used, read-

ings may vary due to internal circuitry.

NOTE: The battery must be at full charge for

these tests.

Magneto Coil (Trigger)

1. Set the meter selector to the DC Voltage position.

2. Connect the red tester lead to the green wire; then

connect the black tester lead to the blue wire.

3. Crank the engine over using the electric starter.

4. The meter reading must be within specification.

Magneto Coil (Source)

1. Set the meter selector to the DC Voltage posi-

tion.

2. Connect the red tester lead to the yellow wire;

then connect the black tester lead to the white

wire.

3. Crank the engine over using the electric starter.

4. The meter reading must be within specification.

PEAK VOLTAGE (500/650 H1)

NOTE: All of the peak voltage tests should be

made using the Fluke Model 73 Multimeter (p/n

0644-191) with Peak Voltage Reading Adapter (p/n

0644-307). If any other type of tester is used, read-

ings may vary due to internal circuitry.

NOTE: The battery must be at full charge for

these tests.

Magneto Coil (Trigger)

1. Set the meter selector to the DC Voltage posi-

tion.

2. Connect the red tester lead to the green wire;

then connect the black tester lead to the blue

wire.

3. Crank the engine over using the electric starter.

4. The meter reading must be within specification.

Magneto Coil (Source)

1. Set the meter selector to the DC Voltage posi-

tion.

2. Connect the red tester lead to the yellow wire;

then connect the black tester lead to the white

wire.

3. Crank the engine over using the electric starter.

4. The meter reading must be within specification.

Stator Coil/Crankshaft

Position (CKP) Sensor

(700 EFI)

VOLTAGE

(Regulator/Rectifier — Output)

1. Set the meter selector to the DC Voltage posi-

tion.

2. Connect the red tester lead to the positive bat-

tery post; then connect the black tester lead to

the negative battery post.

3. With the engine running at a constant 5000 RPM

(with the headlights on), the meter must show

14-15.5 DC volts.

NOTE: If voltage is lower than specified, test sta-

tor coil — no load.

VOLTAGE

(Stator Coil — No Load)

The connector is the black three-pin one on the left

side above the shift lever.

! CAUTION

Do not run the engine at high RPM for more than 10

seconds.

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5

NOTE: Test the connector that comes from the

engine.

1. Set the meter selector to the AC Voltage posi-

tion.

2. Test between the three yellow wires for a total of

three tests.

FI083B

3. With the engine running at a constant 5000

RPM, all wire tests must be within specifica-

tions.

NOTE: If both stator coil tests failed, check all

connections, etc., and test again. If no voltage is

present, replace the stator assembly.

RESISTANCE (Charging Coil)

1. Set the meter selector to OHMS position.

2. Test between the three yellow wires for a total of

three tests.

FI083B

3. The meter reading must be within specification.

RESISTANCE

(Crankshaft Position Sensor)

1. Set the meter selector to the OHMS position.

2. Connect the red tester lead to the blue wire; then

connect the black tester lead to the white wire.

The meter reading must be within specification.

PEAK VOLTAGE

NOTE: All of the peak voltage tests should be

made using the Fluke Model 73 Multimeter (p/n

0644-191) with Peak Voltage Reading Adapter (p/n

0644-307). If any other type of tester is used, read-

ings may vary due to internal circuitry.

NOTE: The battery must be at full charge for

these tests.

Crankshaft Position Sensor

1. Set the meter selector to the DC Voltage posi-

tion.

2. Connect the red tester lead to the blue wire; then

connect the black tester lead to the white wire.

3. Crank the engine over using the electric starter.

4. The meter reading must be within specification.

Starter Motor

REMOVING/DISASSEMBLING

1. Disconnect the battery.

2. Remove the nut securing the positive cable to

the starter; then remove the cable from the

starter.

3. Remove the two cap screws securing the starter

to the crankcase; then remove the starter.

Account for the wiring forms and an O-ring.

! CAUTION

Do not run the engine at high RPM for more than 10

seconds.

! CAUTION

Always disconnect the battery when performing

resistance tests to avoid damaging the multimeter.

! CAUTION

Always disconnect the battery when performing

resistance tests to avoid damaging the multimeter.

! CAUTION

Always disconnect the negative battery cable from

the battery first; then disconnect the positive cable.

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5-16

4. For assembly purposes, scribe a line across the

outside of the starter assembly.

AR652D

5. Remove the two long starter cap screws secur-

ing the starter components.

6. Remove the front cover from the starter housing

and armature shaft. Account for a seal protector

and three washers.

BC003

7. Remove the rear cover.

8. Slide the armature free of the starter housing.

BC006

9. Bend the two positive brushes outward; then

remove the brush holder.

BC007

BC010

10. Remove the nut from the positive post. Account

for the lock washer, flat washer, a fiber washer,

and an O-ring.

BC008

11. Remove the positive brush assembly from the

starter housing.

BC009

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5

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Thoroughly clean all components except the

armature and brushes in parts-cleaning solvent;

then dry with compressed air.

2. Inspect all threaded areas for damage or stripped

threads.

3. Inspect the brush holder assembly and brushes

for damage or wear. Using a caliper, measure the

length of the brushes. If brush measurement is

less than 10.1 mm (0.40 in.), replace with new

brushes and brush springs as a set.

4. Inspect the brush leads for cracks, wear, or fray-

ing. If any of these conditions exist, replace with

new brushes and brush springs as a set.

5. Inspect the rear cover bushing for wear.

6. Inspect the front cover bearing for wear.

7. Inspect the brass commutator end of the arma-

ture for any discolored spots or damage. If the

commutator is lightly discolored or damaged,

the armature must be replaced. This is a molded

commutator and turning it down in a lathe

should not be attempted.

8. Inspect the commutator end of the armature for

buildup in the grooves. Carefully remove any

buildup by undercutting using a thinly ground

hacksaw blade. Do not undercut any deeper than

the original groove which can be seen by look-

ing at the end of the commutator.

9. Using a caliper, measure the undercut. Maxi-

mum undercut groove must be 0.2 mm (0.008

in.).

ATV-1054

10. Inspect the commutator for shorting using a

multimeter and the following procedure.

A. Set the selector to the OHMS position.

B. Touch the black lead to the armature shaft.

C. Using the red tester lead, probe the commuta-

tor end of the armature. The meter indicator

should not change. If the indicator shows

resistance, the armature is shorted and must

be replaced.

11. Inspect the armature for shorting using a

“growler” and the following procedure.

A. Place the armature in the “growler.”

B. While holding a metal strip on the armature,

rotate the armature an entire revolution. If the

metal strip vibrates at any point on the arma-

ture, the armature is shorted and must be

replaced.

0725-653

12. Inspect the ground brushes to make sure they are

properly grounded. Use a multimeter and the

following procedure.

A. Set the selector to the OHMS position.

! CAUTION

Do not wash the armature and brushes in any kind

of solvent. Use only compressed air and a clean dry,

lint-free cloth.

! CAUTION

Do not use emery cloth to clean the commutator as

emery particles will become imbedded in the brass

commutator resulting in a short circuit. Use only

#200 grit sandpaper.

! CAUTION

Buildup in the grooves must be removed to prevent

any chance of an electrical arc between individual

sections of the commutator.

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5-18

B. Touch the black tester lead to a ground brush.

C. Touch the red tester lead to the brush holder

assembly.

NOTE: If no resistance is indicated, check the

ground connection for tightness and for cleanli-

ness. If there is still no meter indication, replace

the brush assembly.

ASSEMBLING/INSTALLING

1. Install the positive post on the positive brush

assembly; then install on the starter housing.

BC009

2. On the positive post, install an O-ring washer, a

fiber washer, a flat washer, and a lock washer.

Secure with the nut.

BC008

3. Align the tab on the brush holder with the notch

in the starter housing; then install.

BC010

4. Install the armature into the starter housing; then

while holding the brushes out, slide the commu-

tator into the brush holder.

BC006

5. Apply a small amount of grease to the rear cover

bushing; then install the cover on the starter

housing making sure the reference marks align.

BC013

6. In order, install the thick metal washer, thin

metal washer, and the fiber washer on the arma-

ture shaft; then install the housing O-ring on the

starter housing.

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5

BC014

7. Apply a small amount of grease to the front

cover bearing and seal; then install the seal pro-

tector.

BC015

BC004

8. Place the front cover onto the starter housing

making sure it seats properly.

9. Apply red Loctite #271 to the threads of the two

long cap screws and install. Tighten to 0.8-1.2

kg-m (6-9 ft-lb).

AR653D

10. Apply a small amount of grease to the O-ring

seal on the starter; then install the starter into the

crankcase. Secure with two cap screws and wir-

ing forms.

11. Secure the positive cable to the starter with the

nut.

12. Connect the battery.

TESTING VOLTAGE

Perform this test on the starter motor positive termi-

nal. To access the terminal, slide the boot away.

NOTE: The ignition switch must be in the ON

position, the emergency stop switch in the RUN

position, the reverse lever (on manual transmis-

sion models) in the FORWARD position, and the

shift lever (on automatic transmission models) in

the NEUTRAL position.

1. Set the meter selector to the DC Voltage posi-

tion.

2. Connect the red tester lead to the starter termi-

nal; then connect the black tester lead to ground.

3. With the starter button depressed, the meter

must show battery voltage and the starter motor

should operate.

AR607D

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NOTE: If the meter showed battery voltage but

the starter did not operate or operated slowly,

inspect battery voltage (at the battery), starter

motor condition, and/or ground connections.

NOTE: If the meter showed no battery voltage,

inspect the main fuse, ground connections, starter

motor lead, battery voltage (at the battery), starter

relay, or the neutral start relay.

Starter Relay

1. Remove the seat; then using the multimeter set

to the DC Voltage position, check the relay as

follows.

2. Connect the red tester lead to the positive bat-

tery terminal; then connect the black tester lead

to the starter cable connection on the starter

relay. The meter must show battery voltage.

KX206A

NOTE: Make sure that the ignition switch is in

the ON position, transmission in neutral, brake

lock released, and the emergency stop switch in

the RUN position.

3. Depress the starter button while observing the

multimeter. The multimeter should drop to 0

volts and a “click” should be heard from the

relay.

NOTE: If a “click” is heard and any voltage is

indicated by the multimeter, replace the starter

relay. If no “click” is heard and the multimeter con-

tinues to indicate battery voltage, proceed to step

4.

4. Disconnect the two-wire plug from the starter

relay; then connect the red tester lead to the

green wire and the black tester lead to the black

wire.

KX059A

5. Depress the starter button and observe the multi-

meter.

NOTE: If battery voltage is indicated, replace the

starter relay. If no voltage is indicated, proceed to

Neutral Start Relay check.

CDI Unit

(400/TBX/500/650 H1)

The CDI is located beneath the seat near the battery.

NOTE: The CDI unit is not a serviceable compo-

nent. If the unit is defective, it must be replaced.

The CDI is rarely the cause for electrical problems;

however, if the CDI is suspected, substitute another

CDI unit to verify the suspected one is defective.

NOTE: Prior to replacing the CDI unit to assure

the CDI unit is defective, it is advisable to perform a

CDI peak voltage test (see Ignition Coils in this sec-

tion) and/or perform a continuity test of the wiring

harness from the CDI connector to the CDI unit.

Electronic Control

Unit (ECU)

(700 EFI)

The electronic control unit (ECU) is located beneath

the seat near the battery.

NOTE: The ECU is not a serviceable component.

If the unit is defective, it must be replaced.

The ECU is rarely the cause for electrical problems;

however, if the ECU is suspected, substitute another

ECU to verify the suspected one is defective.

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5

Error codes can be cleared by following the proce-

dures located in the ECU Error Codes (700 EFI)

sub-section in this section.

Regulator/Rectifier

The regulator/rectifier is located under the rear rack

and rear fenders.

TESTING

1. Start engine and warm up to normal operating

temperatures; then connect a multimeter to the

battery as follows.

2. Select the DC Voltage position; then connect the

red tester lead to the positive battery post and

the black tester lead to the negative battery post.

3. Start the engine and slowly increase RPM. The

voltage should increase with the engine RPM to

a maximum of 15.5 DC volts.

NOTE: If voltage rises above 15.5 DC volts, the

regulator is faulty or a battery connection is loose

or corroded. Clean and tighten battery connec-

tions or replace the regulator/rectifier. If voltage

does not rise, check Voltage (Charging Coil — No

Load) in this section. If charging coil voltage is

normal, replace the regulator/rectifier.

Neutral Start/Front Drive

Actuator/Start-in-Gear/

Differential Lock/2WD

Relays

The relays are identical plug-in type located on the

power distribution module. Relay function can be

checked by switching relay positions. The relays are

interchangeable.

NOTE: The module and wiring harness are not a

serviceable component and must be replaced as

an assembly.

Headlights

The connectors are the four 2-prong ones secured to

the front bumper supports (two on each side) with

cable ties.

BULB VERIFICATION

(Low and High Beam)

NOTE: Perform this test on each headlight bulb.

Also, a 12-volt external power supply w/jumpers

will be needed.

1. Disconnect the wiring harness from the bulb to

be tested.

2. Connect the power supply (positive) to one bulb

contact; then connect the power supply (nega-

tive) to the remaining bulb contact.

3. The bulb should illuminate.

4. If the bulb fails to illuminate, it must be

replaced.

VOLTAGE

NOTE: Perform this test in turn on the main har-

ness side of all four connectors. Also, the ignition

switch must be in the LIGHTS position.

NOTE: The LO beam is the outside bulb, and the

HI beam is the inside bulb.

1. Set the meter selector to the DC Voltage posi-

tion.

2. Connect the red tester lead to one wire; then

connect the black tester lead to the other wire.

3. With the dimmer switch in the LO position, test

the two outside connectors (LO beam). The

meter must show battery voltage.

4. With the dimmer switch in the HI position, test

the two inside connectors (HI beam). The meter

must show battery voltage.

NOTE: If battery voltage is not shown in any test,

inspect the fuses, battery, main wiring harness,

connectors, or the left handlebar switch.

Taillight — Brakelight

The connector is the 3-prong one located under the

rear fender assembly.

BULB VERIFICATION

NOTE: Perform this test on the taillight-brake-

light side of the connector. Also, a 12-volt external

power supply (jumper) will be needed.

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5-22

1. Connect the power supply (positive) to the mid-

dle terminal; then connect the power supply

(negative) to the bottom terminal.

2. The taillight should illuminate.

3. With the negative power supply still connected,

connect the positive supply wire to the top ter-

minal.

4. The brakelight should illuminate.

NOTE: If either the taillight or brakelight fails to

illuminate, inspect the bulb, the connectors, or the

component wiring harness.

VOLTAGE (Taillight)

NOTE: Perform this test on the main harness

side of the connector. Also, the ignition switch

should be in the LIGHTS position.

1. Set the meter selector to the DC Voltage position.

2. Connect the red tester lead to the white wire;

then connect the black tester lead to the black

wire.

3. With the ignition key in the LIGHTS position,

the meter must show battery voltage.

NOTE: If the meter shows no voltage, inspect

fuses, wiring harness, connectors, and switches.

VOLTAGE (Brakelight)

NOTE: Perform this test on the main harness

side of the connector. Also, the ignition switch

should be in the ON position and the brake (either

foot pedal or hand lever) must be applied.

NOTE: Make sure the brake lever (hand) and

brake pedal (auxiliary) are properly adjusted for

this procedure.

1. Set the meter selector to the DC Voltage posi-

tion.

2. Connect the red tester lead to the red/blue wire;

then connect the black tester lead to the black

wire.

3. With either brake applied, the meter must show

battery voltage.

NOTE: If the meter shows no voltage, inspect

bulb, fuses, wiring harness, connectors, and

switches.

Ignition Timing

The ignition timing cannot be adjusted; however,

verifying ignition timing can aid in troubleshooting

other components. To verify engine timing, see Sec-

tion 2.

ECU Error Codes

(700 EFI)

If a sensor fails or an out-of-tolerance signal is

sensed by the ECU, an error code will be generated

by the ECU. This will result in the analog needle

swinging full scale (LE model) or the LCD gauge

going blank (standard model). The EFI icon will

flash.

To read the error code, use the following procedure.

1. Make sure the ignition switch is in the OFF

position; then remove the seat.

2. Locate the diagnostic plug in front of the ECU;

then remove the black rubber cap.

3. Connect the Diagnostic Harness (p/n 0486-219)

to the diagnostic plug.

ATV-112

4. Turn the ignition switch to the ON position and

read the error code on the LCD. Refer to the fol-

lowing ECU Error Code List to identify the spe-

cific problem area.

! CAUTION

Always make sure the ignition switch is in the OFF

position before disconnecting the ECU.

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5

ECU Error Code List

EC00 = No Fault Detected

EC12 = CKP (Crankshaft Position) Sensor

EC13 = APS (Air Pressure Sensor)

EC14 = TPS (Throttle Position Sensor)

EC15 = Water Temperature Sensor

EC20 = Differential Lock Relay

EC21 = Air Temperature Sensor

EC23 = Tilt Sensor

EC24 = Ignition Coil #1

EC32 = Fuel Injector #1

EC40 = ISC Valve

EC41 = Fuel Pump Relay

EC99 = Start Not Possible

NOTE: EC99 indicates that the engine will not

start and that the spark plug and fuel pump are

disabled. EC99 will be displayed following EC23

(Tilt Sensor), EC24 (Ignition Coil), etc.

To clear an error code after repairs or adjustments

are made, install the Diagnostic Harness (p/n

0486-219) by connecting it to the diagnostic plug;

then turn the ignition switch to the ON position.

After three seconds, turn the ignition switch to the

OFF position and disconnect the diagnostic harness.

When the ignition switch is turned on, the error code

should not be displayed.

Tilt Sensor

(700 EFI)

SUPPLY VOLTAGE

1. Disconnect the three-wire connector from the

sensor; then select DC Voltage on the multime-

ter and connect the red tester lead to the orange

wire (C) and the black tester lead to the black

wire (A).

CD706A

2. Turn the ignition switch to the ON position. The

multimeter should read battery voltage. If bat-

tery voltage is not indicated, check the 30-amp

fuse, wiring harness, or the ignition switch.

3. Remove the red tester lead and connect to the

blue/brown wire (B). The multimeter should

read 0 DC volts. If the specified voltage is not

indicated, check wire connections at the CDI or

substitute another CDI to verify the test.

CD706B

OUTPUT VOLTAGE

NOTE: Needle adapters will be required on the

multimeter leads as the following tests are made

with the sensor connected.

1. Connect the three-wire plug to the sensor; then

remove the right-side mounting screw securing

the sensor to the rear frame.

! WARNING

Incorrect installation of the tilt sensor could cause

sudden loss of engine power which could result in

loss of vehicle control resulting in injury or death.

! CAUTION

Do not drop the tilt sensor as shock can damage the

internal mechanism.

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5-24

CD707

2. Install the needle adapters to the multimeter

leads; then select DC Voltage on the multimeter.

3. Connect the red tester lead to the blue/brown

wire (B) and the black tester lead to the

black/yellow wire (A); then turn the ignition

switch ON and observe the meter. The meter

should read 0.8-3.0 DC volts.

CD705B

4. Tilt the sensor 60° or more to the left and right

observing the meter. The meter should read

4.0-8.0 DC volts after approximately one second

in the tilted position. If the meter readings are

not as specified, the tilt sensor is defective.

CD709

NOTE: When replacing the sensor after testing,

make sure the arrow marking is directed up.

CD705A

Throttle Position

Sensor (TPS)

(700 EFI)

INSPECTING

1. Remove the left-side engine cover; then discon-

nect the three-wire TPS connector plug.

FI450A

NOTE: Prior to testing the TPS, inspect the

three-wire plug connector on the main harness

and the three-pin plug on the TPS for contamina-

tion, broken pins, and/or corrosion.

2. Make sure the ignition switch is in the OFF

position; then select the DC Voltage position on

the meter.

3. Connect the black tester lead to spade terminal

C and the red tester lead to spade terminal A.

Turn the ignition switch to the ON position. The

meter should read 4.5-5.5 DC volts.

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5-25

5

FI456A

4. Remove the red tester lead from spade terminal

A and connect it to spade terminal B. The meter

should read 4.5-5.5 DC volts.

NOTE: If the meter does not read as specified,

check for poor connections at the ECU or

open/broken wires in the wiring harness.

5. Turn the ignition switch to the OFF position;

then disconnect the battery (negative cable first).

6. Select the OHMS position on the meter; then

perform the following resistance tests on the

TPS.

A. Pin (B) to ground — infinity (open circuit).

B. Pin (A) to pin (B) — approximately 1.22k

ohms (throttle closed).

C. Pin (A) to pin (B) — approximately 4.36k

ohms (throttle full-open).

D. Pin (A) to pin (C) — approximately 4.05k

ohms.

FI455A

NOTE: If any meter reading is not as specified,

replace or adjust the TPS (see INSTALL-

ING/ADJUSTING in this sub-section).

7. Connect the positive lead to the battery; then

connect the negative lead.

8. Connect the main harness TPS connector to the

TPS; then using MaxiClips (p/n 0744-041), con-

nect the black tester lead to the green/black wire.

FI451A

9. Select the DC Voltage position on the meter and

turn the ignition switch to the ON position. The

meter should read approximately 1.12 DC volts

with the throttle closed and approximately 4.32

DC volts with the throttle in the full-open posi-

tion.

NOTE: If the meter readings are as specified,

check the main harness connector at the ECU

main harness wiring. If the meter readings are not

as specified, replace the TPS and adjust to specifi-

cations (see INSTALLING/ADJUSTING in this

sub-section.

10. Clear all ECU error codes after servicing is

complete (see ECU Error Codes (700 EFI) in

this section).

! CAUTION

Always make sure the ignition switch is in the OFF

position before disconnecting the ECU.

! CAUTION

Always disconnect the battery when performing

resistance tests to avoid damaging the multimeter.

! CAUTION

Always make sure the ignition switch is in the OFF

position before disconnecting the ECU.

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5-26

REMOVING

1. Remove the left-side engine cover; then discon-

nect the three-wire TPS connector plug.

FI450A

2. Remove the two screws securing the TPS to the

throttle body and remove the TPS.

INSTALLING/ADJUSTING

1. Place the TPS into position on the throttle body

and secure with the two screws. Do not tighten

at this time.

2. Connect the main harness to the TPS.

3. Locate the diagnostic connector under the seat;

then install the test plug from Test Plug/Error

Code List Kit (p/n 0444-216) onto the connec-

tor.

FI452A

FI453A

4. Turn the ignition switch to the ON position and

note the position of the TPS indicator icon (A,

B, or C); then adjust the TPS until the TPS icon

appears in the center position (B).

FI459A

FI454A

FI459B

5. Tighten the mounting screws securely; then ver-

ify the TPS icon appears in the center position.

6. Remove the test plug; then install the left-side

engine cover.

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6-1

6

SECTION 6 — DRIVE SYSTEM

TABLE OF

CONTENTS

Drive System ………………….…………….………….…….. 6-2

General Information…..……………..…………….……….. 6-2

Front Drive Actuator …………..…………….……………... 6-3

Front Differential .…………….…………….…………….….. 6-4

Drive Axles ……………………….…………….……………. 6-18

Rear Gear Case …….…………….…………….…………. 6-22

Hub…………..………….…………….…………….…………. 6-24

Hydraulic Brake Caliper…………………….……………. 6-24

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6-2

Drive System

NOTE: Some photographs and illustrations used

in this section are used for clarity purposes only

and are not designed to depict actual conditions.

NOTE: Critical torque specifications are located

in Section 10.

General Information

All gear cases are tagged beneath a cover bolt. This

tag is marked with a production date code, sequence

code, and a ratio code.

A. A “6” or “3.6” on the lower-right corner indi-

cates a 3.6:1 gear set ratio (10:36 teeth).

B. A “1” or “3.1” on the lower-right corner indi-

cates a 3.1:1 gear set ratio (11:34 teeth).

C. A “4.0” on the lower-right corner indicates a

4.0:1 gear set ratio (9:36 teeth).

The die-cast aluminum housings have been assem-

bled with thread-rolling screws (trilobular). When

assembling with these screws, start the screws care-

fully into the housing; then use the following torque

values.

SPECIFICATIONS

Specific specifications regarding the gear cases

(capacities, lubricant type, etc.) can be found in Sec-

tion 1 of this manual.

SPECIAL TOOLS

A number of special tools must be available to the

technician when servicing the gear case.

NOTE: Special tools are available from the Arctic

Cat Service Parts Department.

TROUBLESHOOTING

If a noise is heard from the gear case area, it can be

difficult to locate and/or diagnose. If the noise is

related to wheel speed, but not to engine RPM, the

problem is probably in the final drive or

engine/transmission bevel gear set. When a problem

is localized, a number of inspections must be made

to pinpoint that problem. The most obvious of the

inspections include CV boots, wheel and hub nut

tightness, wheel bearing damage, gear case lubricant

contamination, low lubricant level, seal leakage, CV

joints, or selector arm.

NOTE: Small metallic particles will collect on the

magnetic drain plug as a normal part of break-in

and will also give a metallic cast to drained lubri-

cant. Contamination would include large particles

or water which gives a “milky” look to the lubri-

cant.

NOTE: Lubricant on a new pinion housing

assembly could be grease. If the front of the gear

case is leaking at the rear drive boot, wipe excess

lubricant from the bottom of the pinion housing;

then operate the ATV for a period of time. Inspect

the pinion housing area for any signs of leakage. If

lubricant is again on the bottom of the pinion

housing, the seal must be replaced.

Additional troubleshooting could include the fol-

lowing.

Binding/abrupt motion: CV boot torn (grease loss,

foreign object damage, broken cage); gear lubri-

cant loss or not filled (bearing seizure, broken gear

teeth, seal leakage, bladder or hose leakage,

missing filler/drain plug).

Noise from drive system: wheel or gear case bear-

ing damage, improper gear backlash, improper

assembly, low or no gear case lubricant.

Lockup: gear case lubricant loss or not filled, water

contamination causing bearing seizure.

Size New Housing Reassembled

Housing

M6

(Torx T-30 Recess)

1.1-1.3 kg-m

(8-9.5 ft-lb)

0.9-1.2 kg-m

(6.5-9 ft-lb)

M8

(Torx T-40 Recess)

3.5-4.3 kg-m

(25-31 ft-lb)

2.9-3.5 kg-m

(21-25 ft-lb)

M10

(Torx T-50 Recess)

5.1-6.3 kg-m

(37-45.5 ft-lb)

4.3-5.3 kg-m

(31-38 ft-lb)

Ring Gear Backlash 0.28-0.38 mm (0.011-0.015 in.)

Ring Gear End Play 0.1-0.2 mm (0.004-0.008 in.)

Description p/n

CV Boot Clamp Tool 0444-120

Pinion Gear/Shaft Removal Tool 0444-127

Slide Hammer Kit 0444-225

Internal Hex Socket (48 mm) 0444-104

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6-3

6

Front Drive Actuator

NOTE: The actuator is not a serviceable compo-

nent. If it is defective, it must be replaced.

NOTE: The actuator will operate only when the

ignition switch is in the ON position.

The front drive actuator is located on the left side of

the front drive input housing. With the engine

stopped and the ignition switch in the ON position, a

momentary “whirring” sound can be heard each

time the front drive selector switch is shifted. If no

sound is heard, see Section 5. If the actuator runs

constantly or makes squealing or grinding sounds,

the actuator must be replaced.

REMOVING

1. Remove the left-front inner fender panel; then

disconnect the connector on the actuator harness.

2. Using a T-30 torx wrench, remove the mounting

cap screw from the driveshaft side of the actuator.

AG926

3. Remove the mounting cap screw from below the

actuator on the suspension side.

AG927

4. Loosen but do not remove the mounting cap

screw at the front of the actuator; then slide the

actuator to the rear enough to clear the slotted

mounting tab and the selector shaft.

AG928

INSTALLING

1. Lubricate the O-ring on the actuator; then ensure

that all mounting surfaces are clean and free of

debris.

2. Align the actuator with the selector shaft and

slide it forward onto the shaft taking care to

engage the cap screw in the slot of the front

mounting tab.

AG925

3. While holding the actuator firmly forward,

tighten the front cap screw to hold the actuator

in place; then install but do not tighten the two

remaining cap screws.

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6-4

AG928

4. Loosen the front cap screw; then tighten the cap

screw on the driveshaft side.

AG926

NOTE: It is important to tighten this cap screw

while the others are loose to ensure proper seating

of the actuator.

5. Tighten the remaining cap screws; then connect

the electrical plug to the main harness.

6. Turn the ignition switch to the ON position and

check the operation by shifting the selector

switch several times.

7. Secure the wiring harness to the frame with a

nylon cable tie; then install the inner fender

panel.

Front Differential

NOTE: To remove the rear gear case, see Rear

Gear Case in this section.

REMOVING DIFFERENTIAL

1. Secure the ATV on a support stand to elevate the

wheels.

2. Remove the drain plug and drain the gear lubri-

cant into a drain pan; then reinstall the plug.

ATV0082A

3. Remove the front wheels.

4. Pump up the hand brake; then engage the brake

lever lock.

5. Remove the cotter pin securing the hex nut; then

remove the hex nut and washer.

KX041

6. Release the brake lever lock.

NOTE: It is not necessary to remove the brake

hoses from the calipers for this procedure.

! WARNING

Make sure the ATV is solidly supported on the sup-

port stand to avoid injury.

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6-5

6

7. Remove the two brake calipers. Account for the

four cap screws and four 0.76 mm (0.030 in.)

spacer washers.

AF894D

8. Remove the tie rod cotter pins and discard the

pins.

AF895D

9. Remove the tie rod lock nuts.

AF896D

10. Remove the upper ball joint cap screws taking

care not to strip the threads on the ball joint

shaft; then using a rubber mallet, tap the end of

the axle and free it from the knuckle assembly.

AF628D

11. Pull the steering knuckle away from the axle

taking care not to damage the seals with the axle

end.

KX151

12. Support the axle to not allow it to drop or hang.

13. Remove the lower shock bolts. Account for the

lock nuts; then move the shocks aside and

secure them with a strap.

AF897D

14. Remove the upper A-arm lock nuts and cap

screws; then remove the A-arms.

! CAUTION

The axle must be supported. If the axle is allowed to

drop or hang, damage to the inner CV joint may

occur.

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6-6

AF610D

15. Using a slide hammer, remove the front axles.

AF899D

16. Remove the inner fender panels.

17. Using a T-30 torx wrench, remove the three

screws securing the front drive actuator to the

gear case; then remove the actuator.

AG925

18. Remove the lower differential mounting cap

screw. Account for a lock nut and washers.

CD026

19. Remove the upper differential mounting cap

screws.

CD016

20. Free the differential assembly from the frame

mountings; then shift the differential assembly

forward enough to disengage the front drive-

shaft from the output yoke.

KX161

21. Place the differential on its right side; then

remove it from the frame.

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6-7

6

KX159

Disassembling Input Shaft

NOTE: This procedure can be performed on a

rear gear case; however, some components may

vary from model to model. The technician should

use discretion and sound judgment.

1. Using a T-40 torx wrench, remove the cap

screws securing the pinion housing.

CD102

2. Using a rubber mallet, remove the housing.

Account for a gasket. Remove the fork, collar,

and spring. Note the location of all the compo-

nents for assembling purposes.

CD103

CD106

3. Using a side-cutter (or suitable substitute),

remove the boot clamps; then remove the boots

and splined drive from the input shaft.

CD114

4. Remove the input shaft from the pinion housing.

CD107

5. Using a seal removal tool, remove the input

shaft seal. Account for a spacer.

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6-8

AF982

6. Remove the snap ring securing the input shaft

bearing; then place the pinion housing in a press

and remove the bearing.

AF983

AF984

KX219

Assembling Input Shaft

1. Place the pinion housing in a press and install

the input shaft bearing. Secure the bearing with

the existing snap ring making sure the sharp

edge of the snap ring faces to the outside.

AF993

AF994

2. Install the input shaft seal making sure it is flush

with the edge of the housing.

3. Lubricate the input shaft splines with High-Per-

formance Grease (p/n 0436-905).

NOTE: Any time drive splines are separated,

clean all splines with parts-cleaning solvent and

dry with compressed air; then lubricate with rec-

ommended grease.

KX221

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6-9

6

KX222

4. On the 400/500/650 H1, install the input shaft

into the housing; then install the front boot and

secure with Boot Clamp (p/n 0423-393) and the

rear boot with Boot Clamp (p/n 0423-411).

CD112

CD099

5. Place the pinion housing with new gasket onto

the gear case housing; then secure with the

existing cap screws. Tighten to specifications.

NOTE: If a new gear case housing is being

installed, tighten the cap screws to 3.5-4.3 kg-m

(25-31 ft-lb).

CD103

Disassembling Pinion Gear

NOTE: This procedure can be performed on a

rear gear case.

1. Using a T-40 torx wrench, remove the cap

screws securing the pinion housing. Account for

the coupler, fork, and spring.

KX209

2. Using a T-40 torx wrench, remove the cap

screws securing the gear case cover. Account for

and make note of the ID tag location for assem-

bling purposes.

KX173

3. Using a plastic mallet, tap lightly to remove the

differential cover. Account for an O-ring.

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6-10

KX174

NOTE: If the cover is difficult to remove, pry on

the cover in more than one recessed location.

4. Remove the splined coupler, shifter fork, pin,

and spring of the differential lock assembly and

set aside. Note position of parts for assembling

purposes.

KX175

5. Make match marks on the left bearing housing

and differential housing; then remove the plate

and account for a shim. Mark the shim as

left-side.

KX176

KX177

KX178

6. Place the differential with the open side down;

then lift the housing off the spider assembly.

Account for shim(s) and mark as right-side.

KX179

KX181

7. Using the 48 mm Internal Hex Socket (p/n

0444-104), remove the lock collar securing the

pinion gear assembly.

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6-11

6

NOTE: On a front differential, the lock collar has

right-hand threads. On a rear gear case, the lock

collar has left-hand threads.

CC875

CC876

8. Using the Pinion Gear/Shaft Removal Tool (p/n

0444-127) and a hammer, remove the pinion

gear from the gear case housing.

CC878

9. Secure the pinion gear in a bearing puller; then

remove the pinion bearing using a press.

Account for a collar and a bearing.

CC879

NOTE: If gears are being replaced, use the exist-

ing shims. The numbers are scribed onto the

gears: the ring gear has the number on the oppo-

site side of the gears, and the pinion gear has the

number on the end of the pinion gear shaft by the

splines. If no number is present, it should be con-

sidered as being in the 0 category.

NOTE: If the gear case housing is being

replaced, proceed to the following Shimming Pro-

cedure/Shim Selection sub-section.

Shimming Procedure/Shim

Selection

1. Press bearings into bores by outer ring to hard

contact with seat.

2. Install the lock collar and tighten to specifica-

tions; then on final assembling, stake the lock

collar edge approximately 1.5 mm (0.060 in.)

into the lower oil channel.

CC891

3. Note the following shim selections (shims are

nominally 1.5 mm/0.060 in. thick):

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6-12

738-268B

A. Cover Side — add value A on the gear case

housing to value B (all models except 400

TRV) or value C (400 TRV) on the gear case

cover; then add 1.5 mm (0.060 in.). This will

give you the proper shim thickness.

NOTE: When shimming a rear gear case, add

value A to value B on all models.

B. Gear Case Side — install a 1.3-1.4 mm

(0.050-0.055 in.) shim and tighten the bolts to

3.5-4.3 kg-m (25-31 ft-lb). Verify backlash to

be within a range of 0.28-0.38 mm

(0.011-0.015 in.) and end-play to be within a

range of 0.10-0.20 mm (0.004-0.008 in.). If

not within specification range, reselect shim

until backlash specification range can be ver-

ified.

4. Prior to final assembling, apply molybdenum

disulfide grease to all oil seal lips.

5. Prior to final assembling, prelubricate journal on

pinion assembly with SAE 80W-90 hypoid gear

lubricant prior to pressing assembly into gear

case housing.

Assembling Pinion Gear

1. Install the bearing onto the pinion shaft. Install

the pinion shaft collar.

CC882

CC883

2. Place the pinion assembly in a bearing puller;

then install the bearing using a press.

CC884

3. Install the pinion gear assembly into the housing.

Using the 48 mm Internal Hex Socket (p/n

0444-104), secure the pinion gear assembly with

the existing lock collar. Tighten to specifications.

NOTE: On a front differential, the lock collar has

right-hand threads. On a rear gear case, the lock

collar has left-hand threads.

CC890

4. Place a punch on the edge of the lock collar in

the oil gallery area; then using a hammer, stake

the lock collar to ensure that the collar will

remain securely tightened.

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6-13

6

CC891

5. Install the shift fork shaft w/spring into the gear

housing making sure the shaft O-ring is posi-

tioned to the inside.

CC892

6. Install the shift fork assembly making sure the

fork leg is facing upward. Apply a small amount

of oil to the gasket; then install the gasket.

CC893

7. Place the input shaft assembly onto the gear

housing; then secure with the existing cap

screws. Tighten to specifications.

NOTE: If a new gear housing is being installed,

tighten the cap screws to 3.5-4.3 kg-m (25-31 ft-lb).

CD103

CD110

8. Install the proper shim onto the ring gear spider

assembly making sure the chamfer side of the

shim is facing toward the ring gear. Install the

ring gear in the housing; then install the outside

shim with the chamfer side of the shim toward

the ring gear.

NOTE: The spider and ring gear assembly must

be replaced as a complete unit.

CC896

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6-14

CC897

KX178

9. Install the left bearing housing aligning the match

mark to the mark on the differential housing.

KX177

10. Install the differential lock assembly into the

bearing housing; then place the O-ring on the

gear case housing.

KX175

KX174

11. Making sure the O-ring is properly positioned

on the gear case housing, install the housing

with existing hardware. Account for the ID tag.

Tighten the cap screws to specifications.

NOTE: Grease can be applied to the O-ring for

ease of assembling.

NOTE: If a new gear case housing is being

installed, tighten the cap screws to 3.5-4.3 kg-m

(25-31 ft-lb).

Removing Needle Bearing

NOTE: Removing the needle bearing is rarely

necessary. Avoid removing the needle bearing

unless the bearing is clearly damaged.

NOTE: This procedure can be performed on a

rear gear case.

1. Place a 6.35 mm (1/4 in.) drill bit on the inside

surface of the needle bearing (against the bottom

side); then drill through the pinion shaft needle

bearing housing.

CC885

2. Using a propane torch, heat the area surrounding

the needle bearing to soften the Loctite.

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6-15

6

CC886

3. Using a flat-nosed punch, drive the bearing out

of the housing.

CC887

Installing Needle Bearing

1. Apply red Loctite #271 to the outside of a new

bearing; then place the new bearing into the

housing.

CC888

2. Using a suitable driver, install the needle bear-

ing into the gear case housing making sure the

bearing is seated.

NOTE: Do not push the bearing too far into the

housing.

CC889

3. Install the pinion shaft and secure with the exist-

ing 48 mm lock collar. Tighten to specifications.

CC890

4. Place a punch on the edge of the lock collar in

the oil gallery area; then using a hammer, stake

the lock collar to ensure that the collar will

remain securely tightened.

CC891

5. Install the pinion housing.

Removing/Installing Axle Seal

NOTE: This procedure can be performed on a

rear gear case.

1. Remove the seal using a seal removal tool.

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6-16

CC899

2. Using a press, remove the bearing.

CC900

3. Using a press, install the new bearing into the

housing.

CC901

NOTE: Prior to installing the seal, apply grease

to the seal outside diameter.

4. Install the seal into the housing pressing evenly

on the outside edge until the seal is seated.

CD018

5. Repeat steps 1-4 for the opposite side.

INSTALLING DIFFERENTIAL

1. Align the splined input yoke with the front out-

put splines; then place the differential into posi-

tion on the frame and install the cap screws,

washers, and flex-lock nuts. Tighten to specifi-

cations. Make sure the rubber boot is properly

seated on the input yoke.

CD857

CD859

2. Pour 275 ml (9.3 fl oz) of SAE 80W-90 hypoid

lubricant into the differential and install the

filler plug. Tighten to specifications.

3. Install the front drive actuator with the three

torx-head cap screws; then connect the wire

connector to the main wiring harness.

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6-17

6

AG925

4. Install the inner fender panels.

5. Install the front axles (see Drive Axles in this

section).

6. Secure the upper A-arms with cap screws and

lock nuts. Tighten to specifications.

AF610D

7. Secure the lower shock eyelets with cap screws

and lock nuts. Tighten to specifications.

AF897D

8. Secure the tie rods with the lock nuts. Tighten to

specifications; then install and spread the cotter

pins.

AF896D

AF895D

9. Making sure that each caliper has the 0.76 mm

(0.030 in.) spacer washers between the caliper

and the knuckle, install the brake calipers. Secure

with the cap screws tightened to specifications.

AF894D

10. Install the wheels and tighten to specifications.

11. Remove the ATV from the support stand.

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6-18

Drive Axles

REMOVING REAR DRIVE AXLE

1. Secure the ATV on a support stand to elevate the

wheels.

2. Pump up the hand brake; then engage the brake

lever lock.

3. Remove the wheel.

4. Remove the cotter pin securing the hex nut; then

remove the hex nut. Release the brake lever

lock.

KX041

5. Remove the two brake calipers (right side only).

NOTE: Do not allow the brake calipers to hang

from their cable/hose.

6. Slide the hub out of the knuckle and set aside.

7. Remove the cap screw and lock nut securing the

knuckle to the upper A-arm. Discard the lock

nut.

NOTE: Never reuse a lock nut. Once a lock nut

has been removed, it must be replaced with a new

lock nut.

8. While holding the drive axle stationary, pull the

top of the knuckle out and down until it is free of

the drive axle.

9. Place a drain pan under the ATV to contain any

oil leakage; then using a slide hammer, remove

the drive axle.

AF935

REMOVING FRONT DRIVE AXLE

NOTE: For removing a front drive axle, see Front

Differential in this section.

CLEANING AND INSPECTING

NOTE: Always clean and inspect the drive axle

components to determine if any service or replace-

ment is necessary.

1. Using a clean towel, wipe away any oil or

grease from the axle components.

CD019

2. Inspect boots for any tears, cracks, or deteriora-

tion.

NOTE: If a boot is damaged in any way, it must

be replaced with a boot kit.

3. Inspect the gear case seals for nicks or damage.

! WARNING

Make sure the ATV is solidly supported on the sup-

port stand to avoid injury.

! CAUTION

The calipers should be supported. If the calipers are

allowed to hang from the cable/hose, damage may

occur.

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6-19

6

DISASSEMBLING AXLES

1. Using a side-cutters (or suitable substitute),

remove the large clamp from the boot.

CD020

2. Wipe away excess grease to access the retaining

ring. Using an awl or circlip pliers, remove the

circlip.

CD021

3. Using a snap ring pliers, remove the circlip

securing the bearing ring to the shaft. Note the

direction of the bearing for assembling pur-

poses.

CD023

4. Note the difference inside each bearing ring end

for assembling purposes; then remove the bear-

ing ring.

NOTE: The recess of the bearing must face

toward the housing.

CD022

5. Inspect the splines of the shaft, the bearing ring,

and the housing for damage.

NOTE: If any damage is apparent to the splines,

the bearing ring, and/or the housing, the drive axle

must be replaced as an assembly.

6. Using a side-cutters (or suitable substitute),

remove the small clamp from the shaft.

CD752

NOTE: At this point if the outside boot is dam-

aged, continue with step 7.

7. Using a side-cutters (or suitable substitute),

remove both outside boot clamps from the shaft.

Note the position of the different-sized clamps

for assembling purposes.

CD751

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6-20

8. Apply 40 grams (1/3 of contents) of grease from

the Grease Pack (p/n 0441-173) into the knuck-

les and the new outside boot.

ATV-1052

NOTE: Grease Pack (p/n 0441-173) contains 120

grams of grease. The inside joint (double-offset)

requires approximately 70-90 grams of grease and

the outside (bell-type) requires approximately

35-55 grams. When replacing boots, use 2/3 of the

pack for inside boots and 1/3 of the pack for out-

side boots.

9. Slide the new outside boot onto the shaft with

the new clamps positioned as shown. Note the

different-sized clamps from removal.

NOTE: The boot is positioned correctly when the

small end of the boot seats down into the recessed

groove.

CD754

10. Using a CV Boot Clamp Tool (p/n 0444-120),

secure both outside boot clamps.

CD024

ASSEMBLING AXLES

1. Install the inner boot with the small clamp mak-

ing sure the ends of the clamp are positioned

correctly.

NOTE: The boot is positioned correctly when the

small end of the boot seats down into the recessed

groove.

CD754

2. Using the boot clamp pliers, secure the small

clamp of the inner boot.

ATV-1048

3. Apply 80 grams (2/3 of contents) of grease from

the pack into the bearing housing.

4. Install the bearing onto the shaft making sure the

recess of the bearing is facing the housing.

! CAUTION

Do no over-fill the joint as boot damage may occur

resulting in joint failure.

! CAUTION

It is important that the clamps are positioned cor-

rectly or they may loosen when in motion.

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6-21

6

CD022

5. Secure the bearing ring with the circlip making

sure the sharp side of the circlip faces away

from the boot.

CD023

6. Making sure the marks made during disassem-

bling align, slide the housing over the bearing

ring; then completely seat the bearing ring into

the housing and install the circlip.

NOTE: Pull the bearing ring out of the housing

until it contacts the circlip; then slide the ring in

half way. This will purge air from the housing and

ensure the bearing is packed properly.

CD021

7. Slide the boot over the housing; then using the

boot clamp pliers, secure the boot with the clamp.

CD024

8. Inspect the axle components for correct posi-

tioning of the four clamps. Also, inspect the

boots for being correctly positioned on the shaft.

INSTALLING REAR DRIVE AXLE

1. Slide the drive axle into place in the gear case.

NOTE: To assure proper seating of the axle, give

it a light pull; the axle should remain “clipped” in

place.

2. Swing the knuckle up and onto the drive axle;

then place the knuckle into place in the upper

A-arm. Secure the knuckle to the A-arm with a

cap screw and a new lock nut. Tighten to speci-

fications.

3. Place the hub into position on the axle followed

by a hex nut. Tighten the hex nut finger-tight at

this time.

4. If the brake calipers were removed, position

them on the knuckle and secure with existing

cap screws. Tighten the auxiliary brake caliper

cap screws to specifications. Tighten the

hydraulic brake caliper cap screws to specifica-

tions.

5. Pump up the hand brake lever; then engage the

brake lever lock.

6. Tighten the hub hex nut (from step 3) to specifi-

cations; then install and spread a new cotter pin

making sure each side of the pin is flush to the

hub nut.

! CAUTION

The bearing ring must go onto the shaft with the

side without splines facing toward the small clamp

of the inner boot or severe damage will result.

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6-22

CD027

7. Install the wheel. Tighten to specifications.

8. Remove the ATV from the support stand and

release the brake lever lock.

INSTALLING FRONT DRIVE AXLE

1. Position the drive axle in the gear case and steer-

ing knuckle; then insert the upper A-arm ball

joint into the steering knuckle. Secure with a cap

screw tightened to specifications.

2. Place the brake hose into position on the upper

A-arm; then secure the lower shock eyelet to the

A-arm with a cap screw and a new lock nut.

Tighten to specifications.

3. Secure the tie rod to the steering knuckle with a

new lock nut. Tighten securely; then install and

spread a new cotter pin.

4. Slide the hub w/brake disc into position in the

steering knuckle followed by a washer and hex

nut. Tighten finger-tight at this time.

5. Install the brake caliper on the steering knuckle.

Tighten to specifications; then pump up the hand

brake lever and engage the brake lever lock.

6. Tighten the hub hex nut (from step 4) to specifi-

cations; then install and spread a new cotter pin

making sure each side of the pin is flush to the

hub nut.

CD027

7. Install the wheel and tighten to specifications.

8. Remove the ATV from the support stand and

release the brake lever lock.

9. Check the front differential oil level and add oil

as necessary.

CF113A

Rear Gear Case

REMOVING

1. Remove the left-side rear A-arms (see Rear

A-Arms in Section 7).

2. Remove both of the rear drive axles (see Drive

Axles in this section).

3. Remove the four cap screws securing the engine

output shaft to the rear gear case input flange.

CD028

4. Remove the two cap screws and lock nuts secur-

ing the rear gear case to the frame; then remove

the gear case through the left side.

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6-23

6

AF960A

INSTALLING

1. Slide the gear case into position through the left

side of the frame; then secure it to the frame

with cap screws and lock nuts. Tighten to speci-

fications.

NOTE: If a new gear case is being installed,

tighten the cap screws to 5.1-6.3 kg-m (37-45.5

ft-lb).

2. Secure the engine output shaft to the rear gear

case input flange with three cap screws (coated

with red Loctite #271) and lock nuts. Tighten to

specifications.

3. Install the rear drive axles (see Drive Axles in

this section).

4. Install the left-side rear A-arms (see Rear

A-Arms in Section 7).

Hub

REMOVING

1. Secure the ATV on a support stand to elevate the

wheel; then remove the wheel.

2. Remove the cotter pin from the nut.

NOTE: During assembly, new cotter pins should

be installed.

KX041

3. Remove the flange nut securing the hub.

4. Remove the brake caliper.

PR243A

5. Remove the hub assembly.

6. Remove the four cap screws securing the brake

disc.

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all hub components.

2. Inspect all threads for stripping or damage.

3. Inspect the brake disc for cracks or warping.

4. Inspect the hub for pits, cracks, loose studs, or

spline wear.

INSTALLING

1. Secure the brake disc to the hub with the four

cap screws coated with blue Loctite #243.

Tighten to specifications.

2. Apply grease to the splines in the hub.

AT THIS POINT

For servicing the input shaft, pinion gear, needle

bearing, and axle seal, see Front Differential in this

section.

! WARNING

Make sure the ATV is solidly supported on the sup-

port stand to avoid injury.

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6-24

PR291

3. Install the hub assembly onto the shaft.

CD009

4. Secure the hub assembly with the nut. Tighten

only until snug.

5. Secure the brake caliper to the knuckle with the

two cap screws. Tighten the auxiliary caliper to

specifications. Tighten the hydraulic caliper to

specifications.

PR243A

6. Tighten the hub nut (from step 4) to specifica-

tions; then install and spread a new cotter pin

making sure each side of the pin is flush to the

hub nut.

CD008

7. Install the wheel and tighten to specifications.

CD006

8. Remove the ATV from the support stand.

Hydraulic

Brake Caliper

NOTE: The brake caliper is a non-serviceable

component; it must be replaced as an assembly

(see Section 2).

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7-1

7

SECTION 7 — SUSPENSION

TABLE OF

CONTENTS

Suspension ………..………….…………….…………….….. 7-2

Shock Absorbers ………………….………….……………... 7-2

Front A-Arms ………………….…………….…………….….. 7-3

Rear A-Arms …………………………..…………….……….. 7-5

Wheels and Tires …..…………….…………….…………… 7-7

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7-2

Suspension

NOTE: Critical torque specifications are located

in Section 10.

Shock Absorbers

REMOVING

1. Secure the ATV on a support stand to elevate the

wheels and to release load on the suspension.

2. Remove the two cap screws and nuts securing

each front shock absorber to the frame and the

upper A-arm. Account for bushings and sleeves

from each.

AF605D

3. Remove the two cap screws and nut securing

each rear shock absorber to the frame and lower

A-arm. Account for bushings and sleeves from

each.

AF626D

4. Compress the shock absorber spring, remove the

retainer, and remove the spring.

AF730D

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all shock absorber components in

parts-cleaning solvent.

2. Inspect each shock rod for nicks, pits, rust,

bends, and oily residue.

3. Inspect all springs, spring retainers, shock rods,

sleeves, bushings, shock bodies, and eyelets for

cracks, leaks, and bends.

INSTALLING

1. Place the shock absorber spring over the shock

absorber, compress the spring, and install the

retainer.

! WARNING

Make sure the ATV is solidly supported on the sup-

port stand to avoid injury.

! CAUTION

Additional support stands are necessary to support

the rear axle when the shock absorbers are removed

or damage may occur.

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7-3

7

2. Place bushings and sleeves (where appropriate)

into shock eyelet; then install shock with two

cap screws and nuts. Tighten all nuts to specifi-

cations.

NOTE: The rear shock absorber-to-lower A-arm

torque factor is 2.8 kg-m (20 ft-lb).

3. Remove the ATV from the support stand.

Front A-Arms

REMOVING

1. Secure the ATV on a support stand to elevate the

front wheels; then remove the wheels.

2. Remove the cotter pin from the nut. Discard the

cotter pin.

CD008

3. Remove the nut securing the hub.

4. Remove the brake caliper. Account for two cap

screws and two 0.76 mm (0.030 in.) spacer

washers.

CD007

5. Remove the hub assembly.

6. Remove the cotter pin and slotted nut securing

the tie rod end to the knuckle; then remove the

tie rod end from the knuckle.

AF618D

7. Remove the cap screws securing the ball joints

to the knuckle.

AF628D

8. Tap the ball joints out of the knuckle; then

remove the knuckle.

9. Remove the lower shock absorber eyelet from

the upper A-arm.

! CAUTION

Do not tighten the nuts beyond the 4.8 kg-m (35 ft-lb)

specification or the shock eyelet or mount WILL be

damaged.

! WARNING

Make sure the ATV is solidly supported on the sup-

port stand to avoid injury.

! CAUTION

Support the knuckle when removing the cap screws

or damage to the threads will occur.

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7-4

10. Remove the cap screws securing the A-arms to

the frame.

AF610D

11. Remove the circlip from the ball joint; then

remove the ball joint from the A-arm.

AF616D

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all A-arm components in parts-cleaning

solvent.

2. Clean the ball joint mounting hole of all residual

Loctite, grease, oil, or dirt for installing pur-

poses.

3. Inspect the A-arm for bends, cracks, and worn

bushings.

4. Inspect the ball joint mounting holes for cracks

or damage.

5. Inspect the frame mounts for signs of damage,

wear, or weldment damage.

INSTALLING

1. Apply green Loctite #609 to the entire outside

diameter of the ball joint; then install the ball

joint into the A-arm and secure with the circlip.

AF616D

2. Install the A-arm assemblies into the frame

mounts and secure with the cap screws. Only

finger-tighten at this time.

AF610D

3. Route the brake hose through the upper A-arm

shock absorber mount; then secure the hose to

the A-arm with a cable tie and grommet.

DE054A

4. Secure the lower eyelet of the shock absorber to

the upper A-arm. Tighten nut to specifications.

5. Secure the A-arm assemblies to the frame

mounts (from step 2). Tighten the cap screws to

specifications.

! CAUTION

Do not tighten the nut beyond the 4.8 kg-m (35 ft-lb)

specification or the shock eyelet or mount WILL be

damaged.

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7-5

7

6. Install the knuckle assembly onto the ball joints

and secure with cap screws. Tighten to specifi-

cations.

AF628D

7. Install the tie rod end and secure with the nut.

Tighten to specifications; then install a new cot-

ter pin and spread the pin to secure the nut.

NOTE: During assembly, new cotter pins should

be installed.

AF618D

8. Apply grease to the hub and drive axle splines;

then install the hub assembly onto the drive

axle.

CD009

9. Secure the hub assembly with the nut. Tighten

only until snug.

10. Secure the brake caliper to the knuckle with the

two cap screws making sure the two 0.76 mm

(0.030 in.) spacer washers are positioned

between the caliper and the knuckle. Tighten to

specifications.

CD007

11. Secure the hub nut (from step 9) to the

shaft/axle. Tighten to specifications.

12. Install a new cotter pin and spread the pin to

secure the nut.

CD008

13. Install the wheel and tighten to specifications.

14. Remove the ATV from the support stand.

Rear A-Arms

REMOVING

1. Secure the ATV on a support stand to elevate the

wheels.

2. Pump up the hand brake; then engage the brake

lever lock.

! WARNING

Make sure the ATV is solidly supported on the sup-

port stand to avoid injury.

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7-6

3. Remove the wheel.

4. Remove the cotter pin securing the hex nut; then

remove the hex nut. Release the brake lever

lock.

5. Remove the caliper (right side only).

NOTE: Do not allow the brake calipers to hang

from their cable/hose.

6. Remove the cap screws and lock nut securing

the shock absorber to the frame and lower

A-arm; then remove the shock absorber.

7. Remove the cap screws securing the boot guard

to the lower A-arm.

AF934

8. Slide the hub out of the knuckle and set aside.

9. Remove the cap screws and lock nuts securing

the knuckle to the A-arms. Discard the lock

nuts.

NOTE: Never reuse a lock nut. Once a lock nut

has been removed, it must be replaced with a new

lock nut.

10. Remove the cap screws and lock nuts securing

the A-arms to the frame; then remove the

A-arms.

NOTE: If removing the upper right A-arm, it will

be necessary to disconnect the brake hose from

the A-arm.

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all A-arm components in parts-cleaning

solvent.

2. Inspect the A-arm for bends, cracks, and worn

bushings.

3. Inspect the frame mounts for signs of damage,

wear, or weldment damage.

INSTALLING

1. Install the A-arm assemblies into the frame

mounts and secure with the cap screws and new

lock nuts. Only finger-tighten at this time.

2. Slide the knuckle onto the drive axle and into

position on the A-arms; then secure the knuckle

to the A-arms with cap screws and new lock

nuts. Tighten to specifications.

3. Tighten the hardware securing the A-arms to the

frame mounts (from step 1) to specifications.

4. Apply grease on the drive axle splines; then

install the hub assembly onto the drive axle.

CD009

5. Secure the hub assembly with the nut. Tighten

only until snug.

6. Secure the brake caliper to the knuckle with the

two cap screws (right side only). Tighten the

caliper to specifications.

NOTE: Ensure that the brake hose is properly

routed and secured to the upper A-arm.

DE054A

7. Compress the hand brake lever and engage the

brake lever lock; then secure the hub nut (from

step 5) to the drive axle. Tighten to specifica-

tions.

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7-7

7

8. Install a new cotter pin and spread the pin to

secure the nut.

CD008

9. Secure the shock absorber to the frame with a

cap screw and new lock nut. Tighten to specifi-

cations.

10. Secure the shock absorber to the lower A-arm

with a cap screw and new lock nut. Tighten to

specifications.

11. Secure the boot guard to the lower A-arm with

the two cap screws. Tighten securely.

12. Install the wheel and tighten to specifications.

13. Remove the ATV from the support stand.

Wheels and Tires

0739-534

TIRE SIZE

The ATV is equipped with low-pressure tubeless

tires of the size and type listed in the General Speci-

fications (see Section 1). Do not under any circum-

stances substitute tires of a different type or size.

TIRE INFLATION PRESSURE

Front and rear tire inflation pressure should be 0.35

kg/cm² (5.0 psi).

REMOVING

1. Secure the ATV on a support stand to elevate the

wheels.

2. Remove the wheels.

NOTE: Keep left-side and right-side wheels sepa-

rated for installing them on their proper sides.

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean the wheels and hubs with parts-cleaning

solvent.

2. Clean the tires with soap and water.

3. Inspect each wheel for cracks, dents, or bends.

4. Inspect each tire for cuts, wear, missing lugs,

and leaks.

INSTALLING

1. Install each wheel on its hub.

KEY

1. Machine Screw

2. Brake Disc

3. Wheel Hub — Front

4. Hub Stud

5. Cotter Pin

6. Hex Nut

7. Wheel

8. Mounting Nut

9. Tire — Front

10. Valve Stem

11. Valve Stem Cap

12. Wheel Hub — Rear

13. Wheel

14. Tire — Rear

! WARNING

Use only Arctic Cat approved tires when replacing

tires. Failure to do so could result in unstable ATV

operation.

! WARNING

Do not mix tire tread patterns. Use the same pattern

type on front and rear. Failure to heed warning could

cause poor handling qualities of the ATV and could

cause excessive drive train damage not covered by

warranty.

! WARNING

Make sure the ATV is solidly supported on the sup-

port stand to avoid injury.

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7-8

CD006

NOTE: Make sure each wheel is installed on its

proper hub as noted in removing (the “rotation

arrow” (if applicable) must indicate forward direc-

tion of rotation).

AF612D

2. Tighten to specifications.

CHECKING/INFLATING

1. Using an air pressure gauge, measure the air

pressure in each tire. Adjust the air pressure as

necessary to meet the recommended inflation

pressure.

CD005

2. Inspect the tires for damage, wear, or punctures.

NOTE: If repair is needed, follow the instructions

found on the tire repair kit or remove the wheel and

have it repaired professionally.

NOTE: Be sure all tires are the specified size and

have identical tread pattern.

3. Check the front wheel toe-in and toe-out and

adjust as necessary (see Section 8).

4. Test drive the ATV on a dry, level surface and

note any pulling to the left or right during accel-

eration, deceleration, and braking.

NOTE: If pulling is noted, measure the circumfer-

ence of the front and rear tires on the pulling side.

Compare the measurements with the tires on the

opposite side. If pulling is noted during braking

only, check and adjust the brakes as necessary

and recheck operation (see Section 2).

5. Increase the air pressure in the tires with the

smallest circumference measurement until all

tires are equal in circumference.

6. Repeat steps 4-5 as necessary to ensure proper

handling.

! WARNING

Do not operate the ATV if tire damage exists.

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8-1

8

SECTION 8 — STEERING/FRAME

TABLE OF

CONTENTS

Steering/Frame………………………..…………….……….. 8-2

Steering Post/Tie Rods ………………….………….…….. 8-2

Handlebar Grip…………….………….…………….…….. 8-5

Steering Knuckles …………..…………….…………….….. 8-6

Measuring/Adjusting Toe-In……….…………….……….. 8-8

Front Rack ……….………….…………….…………….…….. 8-9

Front Bumper Assembly ………..…………….…………. 8-10

Front/Rear Body Panel …….…………….………….…… 8-10

Front Body Panel/Side Panels

(TBX/TRV/500/650 H1/700 EFI) …………………… 8-13

Footrests …..…………….……………..……………………. 8-17

Belly Panel ……………………………..……………………. 8-18

Exhaust System ……………..…………….……………. 8-18

Rear Body Panel/Rack ………….…………….…………. 8-19

Side Storage Box (TBX Models) …………………… 8-20

Cargo Box (TBX Models) …………….………….……… 8-21

Adjusting Headlight ……………………….……………. 8-22

Taillight Assembly..……………….………………..……… 8-22

Seat……………..…………….………….…………….……… 8-22

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8-2

Steering/Frame

NOTE: Critical torque specifications are located

in Section 10.

Steering Post/

Tie Rods

NOTE: Some components may vary from model

to model. The technician should use discretion

and sound judgment.

0739-774

REMOVING

1. Remove the ignition switch retaining ring; then

remove the reinstallable rivets securing the

instrument pod to the mounting bracket and

remove the pod.

CD759

2. Remove the reinstallable rivets securing the

radiator access cover and remove the cover.

CD666

3. Remove four reinstallable rivets securing the

steering post cover and remove the cover.

CD667

4. Unlatch the storage compartment lid; then slide

the storage compartment cover assembly for-

ward and lift off.

KEY

1. Cap Screw

2. Cap

3. Shoulder Screw

4. Housing Cap

5. Housing

(Lower)

6. Housing

(Upper)

7. Steering Post

8. Cap Screw

9. Bearing Flange

10. Bearing w/Oil

Seal

11. Washer

12. Cap Screw

13. Tie Rod Assy

14. Ball Joint (Left)

15. Nut (Left)

16. Tie Rod

17. Nut (Right)

18. Ball Joint

(Right)

19. Lock Nut

20. Cotter Pin

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8-3

8

CD669

5. Remove the storage compartment.

CD671

6. Remove the four cap screws securing the han-

dlebar caps and speedometer bracket to the

steering post; then move the handlebar and

speedometer out of the way. Account for four

handlebar caps.

CD762

7. Remove two cap screws securing the upper

steering post bearing to the frame. Account for

two bearings and two housings.

CD760

8. Using a suitable lift stand, raise the ATV enough

to remove the front wheels; then remove the

left-side and right-side splash panels.

CD685

9. Remove the cotter pins and slotted nuts from the

inner and outer tie rod ends; then remove the tie

rods from the steering post arm and the left-side

and right-side steering knuckles.

AF778D

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8-4

KX039

10. Remove two cap screws securing the lower

steering post bearing flange to the frame; then

remove the steering post.

AL600D

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Wash the tie rod ends in parts-cleaning solvent.

Dry with compressed air. Inspect the pivot area

for wear. Apply a low-temperature grease to the

ends.

2. Inspect the tie rods for damaged threads or wear.

3. Inspect the tie rods for cracks or unusual bends.

4. Inspect all welded areas for cracks or deteriora-

tion.

5. Inspect the steering post and steering-post

brackets for cracks, bends, or wear.

6. Inspect the bearing halves, bearing caps, and

bearing housings for cracks or wear.

7. Inspect the handlebar tube for cracks, wear, or

unusual bends.

8. Inspect the handlebar grips for damage or wear.

INSTALLING

1. Place the steering post into position; then secure

the lower bearing flange to the frame with two

cap screws. Tighten to specifications.

AL600D

2. Place the upper steering post bearings into the

housings; then position on the steering post and

secure the housings to the frame with two cap

screws. Tighten to specifications.

CD760

3. Install the tie rods and secure with the slotted

nuts. Tighten to specifications; then install new

cotter pins.

NOTE: If the slots do not align with the holes in

the tie rod ends, tighten the nuts just enough to

allow installation of the cotter pins.

! WARNING

Always wear safety glasses when using compressed

air.

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8-5

8

AF778D

4. Install the splash panels; then install the front

wheels and tighten to specifications using a

crisscross pattern.

5. Lower the ATV and place the handlebar and

caps into position on the steering post; then

position the speedometer on top of the caps and

secure with the four cap screws. Tighten to spec-

ifications.

6. Install the storage compartment box; then attach

the storage compartment cover assembly by

engaging the lugs into the slots and sliding rear-

ward. Lock the storage compartment lid to hold

the assembly in place.

CD671

CD670

7. Place the instrument pod into position over the

speedometer; then secure with two reinstallable

rivets and the ignition switch locking ring.

CD677

CD676

8. Install the steering post access cover and secure

with four reinstallable rivets; then install and

secure the radiator access cover.

Handlebar Grip

REMOVING

1. Remove the plug from the head of the rivet.

2. Using a 1/8-in. drill bit, drill out the rivet.

3. Using compressed air between the grip and the

handlebar, twist the grip back and forth until it

slides free of the handlebar.

INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Inspect the grip for wear, cuts, or cracks.

2. Inspect the grip for deterioration.

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8-6

INSTALLING

NOTE: Before installing a grip, use contact spray

or alcohol to clean the inside of the grip and the

handlebar of glue residue, oil, or any other con-

taminant.

1. Apply a liberal amount of Handlebar Grip

Adhesive to the inside of the grip.

2. Align the rivet hole in the grip with the rivet

hole in the handlebar; then align the notch

(inside the grip) with the slot in the handlebar

and slide the grip onto the handlebar until it is

fully seated.

3. Wipe off any excess glue; then secure the grip

with a new rivet.

4. Install the plug on the head of the rivet.

Steering Knuckles

REMOVING AND DISASSEMBLING

1. Secure the ATV on a support stand to elevate the

wheel; then remove the wheel.

2. Remove the wheel cap from the hub; then

remove the cotter pin from the nut.

3. Remove the nut securing the hub.

4. Remove the brake caliper.

5. Remove the hub assembly.

6. Remove the cotter pin from the tie rod end and

remove the tie rod end from the knuckle.

7. Remove the two cap screws securing the ball

joints in the knuckle.

8. Tap the ball joint end out of the knuckle; then

remove the knuckle.

9. Remove the snap ring from the knuckle; then

remove the bearing.

PR287A

PR288

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all knuckle components.

2. Inspect the bearing for pits, gouges, rusting, or

premature wear.

3. Inspect the knuckle for cracks, breaks, or poros-

ity.

4. Inspect threads for stripping or damage.

! WARNING

Make sure the ATV is solidly supported on the sup-

port stand to avoid injury.

! CAUTION

Use extreme care when removing the bearing. If the

bearing is allowed to fall, it will be damaged and will

have to be replaced.

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8-7

8

ASSEMBLING AND INSTALLING

1. Install the bearing; then install the snap ring

making sure it seats into the knuckle.

PR287A

2. Install the knuckle to the upper and lower ball

joints and secure with the two cap screws.

Tighten to specifications.

AF760D

3. Install the tie rod end and secure with the nut.

Tighten to specifications; then install a new cot-

ter pin and spread the pin.

NOTE: During assembling, new cotter pins

should be installed.

AF759D

4. Apply a small amount of grease to the hub

splines.

PR290A

5. Install the hub assembly onto the splines of the

shaft.

6. Secure the hub assembly with the nut. Tighten

only until snug.

PR257

7. Secure the brake caliper to the knuckle with the

two cap screws. Tighten to specifications.

PR264A

8. Pump the hand brake lever; then engage the

brake lever lock.

9. Secure the hub nut (from step 6) to the shaft.

Tighten to specifications.

10. Install a new cotter pin and spread the pin to

secure the nut.

11. Install the wheel; then using a crisscross pattern,

tighten to specifications.

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8-8

CD006

12. Remove the ATV from the support stand.

Measuring/Adjusting

Toe-In

1. Thoroughly wash the ATV to remove excess

weight (mud, etc.).

2. Refer to the specifications and ensure the tires

are properly inflated to the recommended pres-

sure.

NOTE: Ensure the inflation pressure is correct in

the tires or inaccurate measurements can occur.

CD005

3. Place the ATV in a level position taking care not

to push down or lift up on the front end; then

turn the handlebar to the straight ahead position.

NOTE: When measuring and adjusting, there

should be a normal operating load on the ATV

(without an operator but with Arctic Cat approved

accessories).

4. Measure the distance from the outside edge of

each handlebar grip to the seat catch brackets.

CD012A

5. Adjust the handlebar direction until the two

measurements are equal; then secure the handle-

bar to the rear rack using tie-down straps.

NOTE: Care must be taken not to allow the han-

dlebar to turn while securing it.

CD014

6. Measure the distance from the inside of each

front rim to the lower frame tube.

AF785D

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8-9

8

AF786D

NOTE: The distances from the inside rims to the

frame tubes should be equal. If the measurements

are equal, proceed to step 8; if the measurements

are not equal, proceed to step 7.

7. To make the measurements equal, loosen the

appropriate tie rod jam nuts and adjust accord-

ingly; then proceed to step 8.

AF617D

AF778D

NOTE: The front wheels do not have to be

removed to adjust the tie rod. Also, care should be

taken not to disturb the handlebar position.

8. Using a permanent marker of some type, mark

the center of each front tire (at a height parallel

to the belly panel).

AF789D

9. Measure the distance between the marks (at a

height parallel to the belly panel) at the front

side; then record the measurement.

10. Push the ATV forward until the marks are paral-

lel to the belly panel on the back side; then mea-

sure the distance between the marks.

11. The difference in the measurements must show

3.2-6.4 mm (1/8-1/4 in.) toe-in (the front mea-

surement 3.2-6.4 mm (1/8-1/4 in.) less than the

rear measurement).

12. If the difference in the measurements is not

within specifications, adjust both tie rods

equally until within specifications.

NOTE: Prior to locking the jam nuts, make sure

the ball joints are at the center of their normal

range of motion and at the correct angle.

733-559A

Front Rack

REMOVING

1. Remove the two cap screws and lock nuts secur-

ing the front fender panel.

2. Remove the cap screws and lock nuts securing

the rack to the frame.

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8-10

3. Remove the front rack from the ATV.

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all rack components with parts-cleaning

solvent.

2. Inspect all welds for cracking or bending.

3. Inspect threaded areas of all mounting bosses

for stripping.

4. Inspect for missing decals and/or reflectors.

INSTALLING

1. Place the rack into position on the frame and

front fender panel. Install the cap screws and

lock nuts and finger-tighten only.

2. Install the two cap screws and lock nuts securing

the rack to the fenders. Tighten all hardware

securely.

Front Bumper

Assembly

REMOVING

1. Remove the two flange bolts and lock nuts secur-

ing the upper bumper supports to the bumper.

2. Remove the through-bolt and lock nut securing

the bumper to the frame; then remove the

bumper.

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all bumper components with parts-clean-

ing solvent.

2. Inspect all welds for cracking or bending.

INSTALLING

1. Place the front bumper assembly into position

and install the through-bolt. Start the lock nut

and finger-tighten only.

2. Install the two flange bolts and lock nuts on the

upper supports. Tighten all hardware securely.

Front/Rear Body Panel

REMOVING

1. Remove the seat; then remove the battery

cover/tool tray.

2. Remove the negative battery cable from the bat-

tery; then remove the positive cable. Remove

the vent hose; then remove the battery.

3. Remove four reinstallable rivets securing the

storage compartment to the body; then remove

the storage compartment and the steering post

cover.

CF145A

CF143A

4. Remove the left-side and right-side fender

splash panels; then remove one press-in fastener

and one reinstallable rivet from the left side and

right side of the air-intake splash shroud. Do not

remove the shroud.

5. Disconnect the four headlight connectors and

the taillight/brakelight connector from the sock-

ets.

! CAUTION

Battery acid is harmful if it contacts eyes, skin, or

clothing. Care must be taken whenever handling a

battery.

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8-11

8

CF135A

6. Remove the shift knob; then remove the nut and

axle pivot bolt securing the lever to the shift

lever axle. Remove the shift lever. Account for

the two O-rings on the axle bolt and one spring.

CD779

CD780A

7. Remove the front and rear racks; then remove

the two body bolts adjacent to the air filter hous-

ing and two push nuts located behind the grille.

CF201A

CF160A

8. Remove the two cap screws and lock nuts secur-

ing the left foot peg and remove the foot peg.

CD782

9. Remove eight cap screws and lock nuts and one

reinstallable rivet securing the right-side foot-

well to the fenders.

10. Lift and support the rear of the body to allow

access to the torx-head cap screws securing the

front and rear body sections together; then

remove six self-locking nuts (three from each

side). Remove the rear body panel; then remove

the front one.

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8-12

CF213A

NOTE: To aid in removing the body without sepa-

rating the front and rear panels, it is advisable to

have an assistant help with lifting and guiding the

body clear of the handlebar.

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all fender components with part-cleaning

solvent and soap and water.

2. Inspect fenders for cracks and/or loose rivets.

3. Inspect for any missing decals.

INSTALLING

1. Place the body assembly into position on the

ATV.

NOTE: If the front and rear body panels have

been separated, proceed to step 2; if the panels

have not been separated, proceed to step 3.

2. Install the torx-head cap screws and lock nuts

securing the front and rear body panels together.

Tighten securely.

CF213A

3. Making sure the body mounting grommets are

in place, position the front and rear racks; then

install the eight flanged cap screws and lock

nuts. Do not tighten at this time.

CD679A

CD690A

4. Install four rack-to-body machine screws and

lock nuts on the front and rear racks, two push

nuts behind the grille, and two body bolts adja-

cent the air filter housing; then tighten all fasten-

ers (from step 3 and 4) securely.

CF160A

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8

CF201A

5. Install eight cap screws and lock nuts securing

the right-side footwell to the front and rear fend-

ers; then place the left-side foot peg into posi-

tion and secure with two cap screws and lock

nuts. Tighten securely.

6. Place the storage compartment into position;

then install the steering post cover. Secure with

the reinstallable rivets.

CF145A

CF134A

7. Place the shift lever into position making sure

the spring is installed; then secure with the axle

pivot bolt and lock nut.

8. Install the shift knob and the left-side and

right-side splash panels; then reconnect the

headlights. Tighten all fasteners securely.

9. Place the battery into position in the battery box;

then connect the vent hose.

10. Connect the positive battery cable; then connect

the negative battery cable. Tighten the battery

terminal cap screws securely.

11. Install the battery cover/tool tray; then install the

seat. Make sure the seat locks securely.

Front Body Panel/

Side Panels

(TBX/TRV/500/650 H1/700 EFI)

REMOVING

1. Remove the reinstallable rivets securing the

radiator access cover and remove the cover; then

remove four reinstallable rivets securing the

steering post cover and remove the cover.

CD666

CD667

2. Unlock the storage compartment lid; then slide

the storage compartment cover assembly for-

ward and lift off the storage compartment.

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8-14

CD669

3. Remove the storage compartment box; then

remove the seat.

CD671

4. Remove the ignition switch lock collar and two

reinstallable rivets securing the instrument pod;

then remove the instrument pod.

CF207A

5. Remove four machine screws and lock nuts

securing the front rack to the frame; then

remove the front rack. Account for four grom-

mets and four bushings.

CD679A

CD680

6. Remove three reinstallable rivets securing the

right side panel; then remove two torx-head cap

screws securing the rear of the front panel to the

frame.

CD683A

CD684A

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8-15

8

7. Remove the torx-head cap screws and nylon ties

securing the left-side and right-side splash pan-

els; then remove the panels.

CD685

8. Remove one shoulder screw and four plastic riv-

ets on each side to separate the front panel lower

fenders from the left-side and right-side foot-

wells.

CD691

CD682

9. Remove the shift knob retaining pin and remove

the shift knob; then remove the shift lever pivot

axle nut and remove the axle and shift lever.

Account for a spring and two O-rings.

CD779

CD780A

10. Disconnect four headlight connectors and secure

the wires out of the way; then disconnect the

wires to the front accessory plug.

CD681

11. Rotate the handlebar to the full-left position;

then lift and slide the panel to the rear and lift

the rear up to clear the handlebar.

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8-16

CD765A

NOTE: It may be necessary to rotate the body

panel to the right to align the opening with the han-

dlebar.

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all fender components with part-cleaning

solvent and soap and water.

2. Inspect fenders for cracks and/or loose rivets.

3. Inspect for any missing decals.

INSTALLING

1. Rotate the handlebar to the full-left position;

then place the front body panel over the handle-

bar and rotate and lower into position.

CD765

2. Connect the headlight connectors to the appro-

priate headlights and the front accessory plug

wires to the accessory plug.

CD681

3. Make sure the four rubber grommets and bush

ings are in place; then place the front rack into

position and secure with four machine screws

and flange nuts. Tighten securely.

CD679A

4. Install one machine screw and flange nut and

four plastic rivets on each side to secure the

front fenders to the footwells. Tighten the flange

nuts securely.

NOTE: If the footwells have been removed, see

Footrests in this section.

5. Install four cap screws securing the front body

panel to the frame and rear panel.

CD684A

6. Install the shift lever spring, shift lever, and

pivot axle; then tighten the axle nut securely.

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8-17

8

CD779

7. Install the left-side and right-side splash panels

and tighten the cap screws securely. Install new

nylon ties in the appropriate locations.

8. Install the instrument pod and ignition switch;

then secure with two reinstallable rivets and the

ignition switch lock collar.

CF207A

9. Set the storage compartment box into position;

then install the storage compartment cover mak-

ing sure the mounting lugs engage the slots.

Slide rearward to secure and lock by engaging

the lid lock.

CD671

CD670A

10. Install the steering post cover and secure with

the reinstallable rivets; then install and secure

the radiator access panel.

11. Install the left and right side panels and secure

with reinstallable rivets.

CD683A

Footrests

REMOVING

1. Remove the machine screws and flange nuts

securing the front and rear fenders to the foot-

wells.

CD691A

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8-18

2. Remove the cap screws securing the foot pegs to

the footrests; then remove the foot pegs and

footwells.

CD782

3. Remove the cap screws and flange nuts securing

the footrests to the frame; then remove the foot-

rests.

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean the footrest in parts-cleaning solvent.

2. Inspect the footrest weldments for cracks or

unusual bends.

3. Inspect all tubing for cracks or unusual bends.

INSTALLING

1. Secure the footrests to the frame with four cap

screws and two flange nuts; then tighten

securely.

2. Place the footwells onto the footrests; then put

the foot pegs in position and secure with two cap

screws.

CD782

3. Install the machine screws and flange nuts secur-

ing the front and rear fenders to the footwells.

Belly Panel

REMOVING/INSTALLING

1. Remove the machine screws and shoulder wash-

ers securing the belly panel to the underside of

the frame; then remove the belly panel.

2. Place the belly panel into position on the under-

side of the frame; then install the machine

screws and shoulder washers. Tighten securely.

Exhaust System

REMOVING MUFFLER

1. Remove the two exhaust springs at the muf-

fler/exhaust pipe juncture.

CF138A

2. Slide the muffler rearward to clear the mounting

lugs and remove the muffler.

INSPECTING MUFFLER

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Inspect muffler externally for cracks, holes, and

dents.

2. Inspect the muffler internally by shaking the

muffler back and forth and listening for rattles

or loose debris inside the muffler.

NOTE: For additional details on cleaning the

muffler/spark arrester, see Section 2.

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8

INSTALLING MUFFLER

1. Place the muffler into position engaging the

mounting lugs into the grommets; then slide the

muffler forward.

2. Install the two exhaust springs.

Rear Body Panel/Rack

REMOVING

1. Remove four machine screws and flanged nuts

securing the rear rack; then remove the rear

rack. Account for four bushings.

CD690A

2. Remove one shoulder screw and lock nut and

three plastic rivets (on each side) securing the

rear body panel to the footwells.

CD691A

3. Remove two machine screws securing the bat-

tery cover and remove the cover.

CD687A

4. Disconnect the battery (negative cable first);

then remove the battery.

CD688

5. Disconnect the taillight/brakelight; then remove

the gas tank cap and lift off the rear body panel.

Install the gas tank cap.

NOTE: If the front body panel has not been

removed, the left-side and right-side panels and

the two machine screws must be removed (see

Front Body Panel/Side Panels in this section).

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all rear body panel components with

parts-cleaning solvent and soap and water.

2. Inspect side panels and rear body panel for

cracks and loose rivets.

3. Inspect threaded areas of all mounting bosses

for stripping.

4. Inspect for missing decals.

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8-20

INSTALLING

1. Remove the gas tank cap and set the rear body

panel in position; then install the cap and con-

nect the taillight/brakelight connector.

2. Place the rear rack in position with four bush-

ings and secure with four machine screws and

flanged nuts. Tighten securely.

CD690A

3. Install one shoulder screw and three plastic riv-

ets (on each side) to secure the front of the rear

body panel to the footwells.

CD691

4. Place the battery into the battery box; then con-

nect the battery (positive cable first) and secure

with the battery cover.

CD687A

5. Secure the front and rear panels with two

machine screws; then install the left and right

side panels.

NOTE: If the front body panel has not been

installed, see Front Body Panel/Side Panels in this

section.

6. Place the seat into position making sure it locks

securely.

Side Storage Box

(TBX Models)

REMOVING

1. Rotate the cargo box latch handle (located on

the left and right sides between the cargo box

and the rear tire) and fully raise the cargo box.

2. Pull the seat lock lever forward (located below

the right side of the seat), raise the front end of

the seat, and slide it forward and off the ATV.

3. Remove the two cap screws (located inside the

side storage box) securing the box to the foot-

rest.

4. Remove the screw securing the box to the side

panel.

5. Remove cap screws (A and B) securing the box

to the frame.

CD045A

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all side storage box components with soap

and water.

2. Inspect the box for cracks, tears, and loose

mounting hardware.

3. Inspect the box hatch O-ring seals for cuts or

tears.

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8-21

8

INSTALLING

1. Place the side storage box into position on the

frame; then secure with the two cap screws (A

and B). Tighten cap screws to specifications.

CD045A

2. Secure the box to the side panel with the exist-

ing screw.

3. Secure the box to the footrest with existing hard-

ware. Tighten securely.

4. Install the seat.

5. Lower the cargo box and press down firmly on

the front of the box. The cargo box will automat-

ically lock into position.

Cargo Box

(TBX Models)

REMOVING

1. Rotate the cargo box latch handle (located on

the left and right sides between the cargo box

and the rear tire) and fully raise the cargo box.

CD771

2. Remove the nut from the lower end of the box

lift support.

3. Remove the two cap screws and lock nuts secur-

ing the cargo box to the frame; then remove the

cargo box and discard the lock nuts.

CD122

NOTE: Never reuse a lock nut. Once a lock nut

has been removed, it must be replaced with a new

lock nut.

CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Clean all cargo box components with soap and

water.

2. Inspect the cargo box for cracks, tears, and loose

mounting hardware.

3. Inspect the welds of the cargo box frame for

cracking or bending.

4. Inspect the cargo box gate latches for smooth

operation.

INSTALLING

1. Place the cargo box into position on the frame.

Secure with cap screws and new lock nuts.

Tighten to specifications.

CD122

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8-22

2. While an assistant holds the cargo box in the

raised position, secure the lower end of the box

lift support to the frame with the cap screw and

nut.

3. Lower the cargo box and press down firmly on

the front of the box. It will automatically lock

into position.

Adjusting Headlight

The headlights can be adjusted vertically and hori-

zontally. The geometric center of the HIGH beam

light zone is to be used for vertical and horizontal

aiming.

To check/adjust headlight beam, see Section 2.

Taillight Assembly

REMOVING

1. Unplug the three-prong connector and free the

taillight wiring harness from the frame.

2. Remove the torx-head cap screws securing the

taillight assembly to the frame. Account for any

washers.

3. Remove the taillight assembly.

INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Inspect wiring harness, three-prong connector,

lens, base, cap screws, and socket for damage.

2. Inspect all wires for corroding, pinching, and

cracking.

3. Inspect the bulb for wattage, voltage, and proper

operation.

INSTALLING

1. Place the assembly into position on the frame

and secure with torx-head cap screws and any

washers.

2. Tighten the cap screws securely.

3. Route the wiring harness over the rear frame;

then connect the three-prong connector.

Seat

NOTE: Some components may vary from model

to model. The technician should use discretion

and sound judgment.

REMOVING/INSTALLING

1. To remove the seat, lift up on the latch release

(located at the rear of the seat). Raise the rear of

the seat and slide it rearward.

2. To lock the seat into position, slide the front of

the seat into the seat retainers and push down

firmly on the rear of seat. The seat should auto-

matically lock into position.

REMOVING/INSTALLING (TRV)

1. To remove the rear seat, pull the two latch han-

dles to the rear and rotate them to the vertical

position.

CF226

2. Lift the rear of the seat up; then pull slightly to

the rear and lift the seat off the mountings.

! WARNING

Do not operate the ATV unless the headlight beam is

adjusted properly. An incorrectly adjusted beam will

not provide the operator the optimum amount of

light.

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

www.mymowerparts.com

8-23

8

CF227A

3. To lock the seat into position, engage the two

front mounting lugs into the mounting rack; then

holding down firmly on the front of the seat,

push the seat forward until the rear tabs engage

the rear mounting latches.

CF229A

4. Lock the seat into position by pulling the two

latch handles to the rear and rotating them to the

horizontal position.

CF226A

NOTE: The rear seat must be removed prior to

removing the front seat.

5. To remove the front seat, pull the seat lock lever

up (located at the rear of the seat). Raise the rear

end of the seat and slide it rearward.

6. To lock the seat into position, slide the front of

the seat into the seat retainers and push down

firmly on rear of seat. The seat should automati-

cally lock into position.

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

www.mymowerparts.com

9-1

9

SECTION 9 — CONTROLS/INDICATORS

TABLE OF

CONTENTS

Hand Brake Lever/Master Cylinder Assembly.…….. 9-2

Throttle Control ………..……………..…………….……….. 9-3

Gearshift Pedal (Manual Transmission)………..…….. 9-5

Drive Selector..…………….…………….………….……….. 9-5

Front Differential Lock ……………………………………... 9-5

Shift Lever ……….………….…………….…………….…….. 9-5

Speedometer/Tachometer/LCD….…………….……….. 9-6

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

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9-2

Hand Brake Lever/

Master Cylinder

Assembly

NOTE: The master cylinder is a non-serviceable

component; it must be replaced as an assembly.

REMOVING

1. Slide a piece of flexible tubing over one of the

wheel bleeder valves and direct the other end

into a container. Remove the reservoir cover;

then open the bleeder valve. Allow the brake

fluid to drain completely.

NOTE: Compressing the brake lever several

times will quicken the draining process.

AF637D

2. Place an absorbent towel around the connection

to absorb brake fluid. Remove the banjo-fitting

from the master cylinder. Account for two crush

washers and a banjo-fitting bolt.

DE059A

3. Remove the circlip and pivot pin securing the

brake lever to the master cylinder housing; then

remove the brake lever and set aside.

4. Dislodge the brakelight switch from the master

cylinder housing by gently pressing it toward

the pivot pin hole in the housing; then lay it

aside leaving the switch and wiring harness con-

nected.

BC205

5. Remove the clamp screws securing the brake

housing to the handlebar; then remove the

assembly from the handlebar.

DE058A

INSPECTING

NOTE: Whenever a part is worn excessively,

cracked, or damaged in any way, replacement is

necessary.

1. Inspect the pin securing the brake lever for wear.

2. Inspect the brake lever for elongation of the

pivot hole.

3. Inspect the reservoir for cracks and leakage.

4. Inspect the banjo-fitting for cracks and deterio-

ration and the condition of the fittings (threaded

and compression).

5. Inspect the brakelight switch for corrosion,

cracks, missing or broken mounting tabs, or bro-

ken and frayed wiring.

NOTE: If the brakelight switch is determined to

be not serviceable, see Section 5.

! CAUTION

Brake fluid is highly corrosive. Do not spill brake

fluid on any surface of the ATV.

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

www.mymowerparts.com

9-3

9

INSTALLING

1. Position the brake housing on the handlebar.

Secure with clamp screws; then tighten securely.

DE058A

2. Using two new crush washers, connect the

banjo-fitting to the master cylinder; then secure

with the banjo-fitting bolt.

DE059A

3. Gently press the brakelight switch into the hous-

ing (left to right) until the mounting tabs snap

into the four locating holes; then install the

brake lever, pivot pin, and circlip.

BC206

4. Bleed the brake system (see Section 2).

Throttle Control

REMOVING

1. Remove the two machine screws securing the

throttle control to the handlebar.

2. Slide the grommet out of the lower half of the

throttle control; then remove the cable from the

actuator arm.

AF676D

3. Remove the cap screw, lock washer, and washer

securing the actuator arm to the throttle control

lever.

AF677D

4. Remove the actuator arm and account for a

bushing. Note the position of the return spring

for installing purposes.

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

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9-4

AF678D

INSTALLING

1. Place the return spring into the throttle control;

then place the bushing and actuator arm into

position. Secure with the cap screw, lock

washer, and washer.

AF679D

2. Using a pair of needle-nose pliers, place the

spring into position on the actuator arm.

AF680D

3. Place the two halves of the throttle control onto

the handlebars and secure with the two machine

screws.

ADJUSTING

1. Slide the boot back to reveal the jam nut; then

loosen the jam nut.

AF682D

2. Rotate the adjuster sleeve until 0.5-1.0 mm

(0.02-0.04 in.) is attained.

AL611D

3. Secure the adjustment by tightening the jam nut;

then slide the boot over the jam nut.

0732-412

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

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9-5

9

Gearshift Pedal

(Manual Transmission)

The gearshift pedal is attached to a ratchet mecha-

nism in the transmission. Each time a gear is

selected, the gearshift pedal will return to its normal

position ready to select the next gear. To return to

neutral, press down repeatedly (once for each gear)

on the front of the pedal. Shift into gears by pressing

down on the back of the pedal once for each gear.

The ratchet mechanism makes it impossible to

upshift or downshift more than one gear at a time.

ATV0078C

Drive Selector

The automatic drive selector allows the operator to

operate in either 2-wheel drive (rear wheels) or

4-wheel drive (all wheels). For normal riding on

flat, dry, hard surfaces, 2-wheel drive should be suf-

ficient. In situations of aggressive trail conditions,

4-wheel drive would be the desired choice.

To either engage or disengage the front wheels,

move the switch to the 4WD position or to the 2WD

position.

738-422A

Front Differential Lock

Certain ATV models are equipped with a front dif-

ferential lock. The front differential lock allows the

operator to mechanically lock the differential to

apply equal power to both front wheels. To engage

the front differential lock, rotate the handle fully

clockwise to LOCK; to disengage the front differen-

tial lock, rotate the handle fully counterclockwise to

UNLOCK.

KX016A

To adjust the differential lock cable, see Section 2.

Shift Lever

REMOVING

1. Remove the E-clip securing the shift rod to the

engine shift arm.

2. Remove two cap screws, two self-tapping

screws, and three nylon ties securing the

left-side splash panel and remove the panel.

3. Remove the axle and nut securing the shift lever

to the upper shift arm; then remove the shift

lever. Account for a spring and two O-rings.

4. Using two open-end wrenches, remove the lock

nut securing the shift rod to the upper shift arm.

Remove the shift rod and discard the lock nut.

NOTE: Never reuse a lock nut. Once a lock nut

has been removed, it must be replaced with a new

lock nut.

! CAUTION

Do not attempt to either engage or disengage the

front differential while the ATV is moving.

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

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9-6

INSTALLING

1. Place the shift rod into position on the engine

shift arm and secure with the existing E-clip.

2. Using a new lock nut (B), secure the shift rod to

the upper shift arm; then using two open-end

wrenches, tighten securely.

AF941A

3. Place the spring into position between the upper

shift arm and shift lever; then making sure the

O-rings are in place on the axle, secure the shift

lever to the arm with the existing axle and nut.

4. Check shift lever adjustment (see Section 2);

then tighten jam nut (A) securely.

5. Install the left-side splash panel.

Speedometer/

Tachometer/LCD

REPLACING

To replace the speedometer, use the following pro-

cedure.

1. Remove the two reinstallable rivets securing the

instrument pod; then remove the ignition switch

retaining ring.

2. Remove the two nuts securing the mounting

studs; then remove the speedometer and discon-

nect the multi-pin connector.

3. Mount the speedometer and secure with the two

nuts; then connect the multi-pin connector.

4. Install the instrument pod and secure with the

reinstallable rivets.

5. Secure the ignition switch with the retaining

ring.

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

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10-1

10

SECTION 10 — AIDS FOR MAINTENANCE

TABLE OF

CONTENTS

Torque Specifications

(400/500 — Manual Transmission)…………..……… 10-2

Torque Specifications

(400/500 — Automatic Transmission/650 H1) …… 10-3

Torque Specifications (700 EFI) ………………………. 10-5

Tightening Torque (General Bolts) …………………… 10-7

Torque Conversions …………..………….……………. 10-7

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

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10-2

Torque Specifications

(400/500 — Manual Transmission)

DRIVE TRAIN COMPONENTS

Part Part Bolted To Torque

kg-m ft-lb

Engine

(Lower Rear/Front)

Frame 5.5 40.0

Front Differential* Frame/Differential

Bracket

6.2 45.0

Pinion Housing Differential

Housing

2.9-3.5 21.0-

25.0

Differential Housing

Cover***

Differential

Housing

2.9-3.5 21.0-

25.0

Drive Bevel Gear Nut*** Shaft 10.0 72.0

Differential Gear Case*** Hub 2.3-3.0 16.5-

22.0

Lock Collar Differential

Housing

17.3 125.0

Hub Nut Shaft/Axle (max) 27.6 200.0

Oil Drain Plug Front Differential/

Rear Drive

0.5 3.5

Oil Fill Plug Front Differential/

Rear Drive

2.2 16.0

Oil Drain Plug Engine 2.2 16.0

Inspection Plug Front Differential/

Rear Drive

0.5 3.5

Wheel Hub 5.5 40.0

Oil Fitting (400) Engine 0.8 6.0

EXHAUST COMPONENTS

Exhaust Pipe Engine 2.8 20.0

ELECTRICAL COMPONENTS

Coil* Frame 1.7 12.0

Ground Wire Engine 1.1 8.0

STEERING COMPONENTS

Handlebar Block Steering Post 2.8 20.0

Steering Post Bearing

Housing

Frame 2.8 20.0

Steering Post Bearing

Flange

Frame 2.8 20.0

Lower Steering Bearing

Washer Cap Screw***

Steering Post 5.5 40.0

Tie Rod End Knuckle/Steering

Post

4.2 30.0

BRAKE COMPONENTS

Part Part Bolted To Torque

kg-m ft-lb

Brake Disc* Hub 2.1 15.0

Brake Hose Caliper 2.8 20.0

Brake Hose Master Cylinder 2.8 20.0

Brake Hose Auxiliary Brake Cyl-

inder

2.8 20.0

Master Cylinder (Rear) Frame 3.5 25.0

Master Cylinder Cover Master Cylinder 0.1 1.0

Auxiliary Brake Pedal Lever Axle 3.5 25.0

Hydraulic Caliper Knuckle/Axle

Retainer Assembly

2.8 20.0

Auxiliary Caliper Knuckle/Axle

Retainer Assembly

2.8 20.0

CHASSIS COMPONENTS

Footrest Frame (8 mm) 2.8 20.0

Footrest Frame (10 mm) 5.5 40.0

Shift Lever* Shift Axle 1.1 8.0

SUSPENSION COMPONENTS (Front)

A-Arm Frame 4.8 35.0

Ball Joint Cap Screw Knuckle 4.8 35.0

Shock Absorber Frame 4.8 35.0

Shock Absorber Upper A-Arm 4.8 35.0

Knuckle A-Arm 4.8 35.0

SUSPENSION COMPONENTS (Rear)

Axle Retainer Assembly Axle Housing 5.5 40.0

Shock Absorber (Upper) Frame 4.8 35.0

Shock Absorber (Lower) Lower A-Arm 2.8 20.0

A-Arm Frame 4.8 35.0

Swing Arm Axle Housing/Case 4.8 35.0

Knuckle A-Arm 4.8 35.0

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

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10-3

10

* w/Blue Loctite #243

** w/Red Loctite #271

*** w/Green Loctite #609

Torque Specifications

(400/500 — Automatic

Transmission/650 H1)

ENGINE/TRANSMISSION

Part Part Bolted To Torque

kg-m ft-lb

Clutch Shoe Crankshaft 13.0 94.0

Clutch Sleeve Hub Countershaft 10.0 72.0

Crankcase Half (6 mm) Crankcase Half 0.9-1.3 6.5-9.5

Crankcase Half (8 mm) Crankcase Half 2-2.4 14.5-

17.0

Cylinder Head

(Cap Screw)

Cylinder 3.8 27.5

Cylinder Head

(6 mm Nut)

Cylinder 1.1 8.0

Cylinder Head (8 mm Nut) Cylinder 2.5 18.0

Cylinder Head Cover Cylinder Head 1.0 7.0

Left-Side Cover Crankcase Half 0.9-1.3 6.5-9.5

Mechanical Water Pump

Impeller

Pump Shaft 1.05 7.5

Oil Pump Drive Gear Crank Balancer

Shaft

8.0 58.0

Oil Pump* Crankcase 1.0 7.0

Output Shaft Gear Output Shaft 10.0 72.0

Rear Output Shaft Output Joint 2.8 20.0

Recoil Starter Left-Side Cover 0.8 6.0

Reverse Cam Stopper

Housing

Crankcase 2.3 16.5

Right-Side Cover Crankcase 0.9-1.3 6.5-9.5

Rotor/Flywheel Nut Crankshaft 16.0 116.0

Shift Stop Housing Crankcase 2.3 16.5

Cam Sprocket** Camshaft 1.5 11.0

Starter Cup Crankshaft 3.5 25.0

Spark Plug Engine 1.7 12.0

DRIVE TRAIN COMPONENTS

Part Part Bolted To Torque

kg-m ft-lb

Engine Mounting

Through-Bolt (400/500)

Frame 5.5 40.0

Engine (650 H1) Engine Cradle 5.5 40.0

Engine Cradle (650

H1/TRV)**

Rubber Mount 3.5 25.0

Rubber Mount (650

H1/TRV)

Frame Bracket 4.8 35.0

Front Differential* Frame/Differential

Bracket

6.2 45.0

Rear Output Joint

Assembly

Engine 2.8 20.0

Input Housing Differential

Housing

2.9-3.5 21.0-

25.0

Differential Housing

Cover***

Differential

Housing

2.9-3.5 21.0-

25.0

Drive Bevel Gear Nut*** Shaft 10.0 72.0

Differential Gear Case*** Hub 2.3-3 16.5-22

Lock Collar Differential

Housing

17.3 125.0

Hub Nut Shaft/Axle (max) 27.6 200.0

Oil Drain Plug Front Differential/

Rear Drive

0.5 3.5

Oil Fill Plug Front Differential/

Rear Drive

2.2 16.0

Oil Drain Plug Engine 2.2 16.0

Inspection Plug Rear Drive 0.5 3.5

Wheel Hub 5.5 40.0

EXHAUST COMPONENTS

Exhaust Pipe (400/500) Engine 2.8 20.0

Exhaust Pipe (650 H1) Engine 2.8 20.0

ELECTRICAL COMPONENTS

Coil* Frame 1.7 12.0

Ground Wire Engine 1.1 8.0

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

www.mymowerparts.com

10-4

* w/Blue Loctite #243

** w/Red Loctite #271

*** w/Green Loctite #609

STEERING COMPONENTS

Part Part Bolted To Torque

kg-m ft-lb

Handlebar Block Steering Post 2.8 20.0

Steering Post Bearing

Housing

Frame 2.8 20.0

Steering Post Bearing

Flange

Frame 2.8 20.0

Lower Steering Bearing

Washer Cap Screw***

Steering Post 5.5 40.0

Tie Rod End Knuckle/Steering

Post

4.2 30.0

BRAKE COMPONENTS

Brake Disc* Hub 2.1 15.0

Brake Hose Caliper 2.8 20.0

Brake Hose Master Cylinder 2.8 20.0

Brake Hose Auxiliary Brake Cali-

per

2.8 20.0

Master Cylinder Cover Master Cylinder 0.1 1.0

Auxiliary Brake Pedal Lever Axle 3.5 25.0

Hydraulic Caliper Knuckle 2.8 20.0

Auxiliary Caliper Knuckle 2.8 20.0

CHASSIS COMPONENTS

Footrest Frame (8 mm) 2.8 20.0

Footrest Frame (10 mm) 5.5 40.0

Shift Lever* Shift Axle 1.1 8.0

SUSPENSION COMPONENTS (Front)

A-Arm Frame 4.8 35.0

Ball Joint Cap Screw Knuckle 4.8 35.0

Shock Absorber Frame 4.8 35.0

Shock Absorber Upper A-Arm 4.8 35.0

Knuckle A-Arm 4.8 35.0

SUSPENSION COMPONENTS (Rear)

A-Arm Frame 4.8 35.0

Shock Absorber (Upper) Frame 4.8 35.0

Shock Absorber (Lower) Lower A-Arm 2.8 20.0

Knuckle A-Arm 4.8 35.0

SUSPENSION COMPONENTS (Rear) TBX Model

Shock Absorber Frame 4.8 35.0

Shock Absorber A-Arm 2.8 20.0

Tilt Box Frame ATV Frame 3.3 24.0

Cargo Box (Plastic) Tilt Box Frame 1.7 12.0

Side Box Frame 2.8 20.0

Side Box Footwell 1.1 8.0

Rear CV Joint** Engine 2.8 20.0

ENGINE/TRANSMISSION

(400/500 — Automatic Transmission)

Part Part Bolted To Torque

kg-m ft-lb

Clutch Shoe Crankshaft 13.0 94.0

Clutch Cover/Housing

Assembly

Crankcase 1.1 8.0

Crankcase Half (6 mm) Crankcase Half 0.9-1.3 6.5-9.5

Crankcase Half (8 mm) Crankcase Half 2-2.4 14.5-17

Cylinder Head

(Cap Screw)

Crankcase 3.8 27.5

Cylinder Head (6 mm) Cylinder 1.1 8.0

Cylinder Head (8 mm) Cylinder 2.5 18.0

Cylinder Head Cover Cylinder Head 1.0 7.0

Driven Pulley Nut** Fixed Face 10.4-11.8 75.0-

85.0

Fixed Driven Clutch Shaft 10.4-11.8 75.0-

85.0

Ground Wire Engine 1.1 8.0

Magneto Cover Crankcase 1.1 8.0

Mechanical Water Pump

Impeller

Pump Shaft 1.05 7.5

Movable Drive Face** Driveshaft 10.4-11.8 75.0-

85.0

Oil Pump Drive Gear Crank Balancer

Shaft

5.0 36.0

Output Shaft Gear Output Shaft 10.0 72.0

Recoil Starter Left-Side Cover 0.8 6.0

Rotor/Flywheel Nut Crankshaft 16.0 116.0

Cam Sprocket** Camshaft 1.5 11.0

Starter Cup Crankshaft 3.5 25.0

V-Belt Cover Crankcase 1.1 8.0

Spark Plug Engine 1.7 12.0

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

www.mymowerparts.com

10-5

10

* w/Blue Loctite #243

** w/Red Loctite #271

*** w/Green Loctite #609

Torque Specifications

(700 EFI)

ENGINE/TRANSMISSION

(650 H1)

Part Part Bolted To Torque

kg-m ft-lb

Clutch Shoe Crankshaft 31.8 230.0

Clutch Cover/Housing

Assembly

Crankcase 1.1 8.0

Crankcase Half (6 mm) Crankcase Half 0.9-1.3 6.5-9.5

Crankcase Half (8 mm) Crankcase Half 2.8 20.0

Cylinder Head

(Cap Screw)

Crankcase 5.5 40.0

Cylinder Head (6 mm) Cylinder 1.1 8.0

Cylinder Head (8 mm) Cylinder 2.5 18.0

Cylinder Head Cover Cylinder Head 1.1-1.2 8.0-9.0

Driven Pulley Nut Fixed Face 13.5 97.5

Fixed Driven** Clutch Shaft 13.5 97.5

Ground Wire Engine 1.1 8.0

Magneto Cover Crankcase 1.1 8.0

Mechanical Water Pump

Impeller

Pump Shaft 1.05 7.5

Movable Drive Face** Driveshaft 10.4-11.8 75-85

Oil Pump Drive Gear Crank Balancer

Shaft

8.5 61.5

Output Shaft Gear Output Shaft 8.5 61.5

Outer Magneto Cover Left-Side Cover 0.8 6.0

Recoil Starter

(Certain 650 H1 Models)

Left-Side Cover 0.8 6.0

Rotor/Flywheel Nut Crankshaft 14.5 105.0

Cam Sprocket** Camshaft 1.35 9.8

Starter Cup/Spacer Crankshaft 3.8 27.5

V-Belt Cover Crankcase 1.1 8.0

Spark Plug Engine 1.7 12.0

DRIVE TRAIN COMPONENTS

Part Part Bolted To Torque

kg-m ft-lb

Engine Mounting

Through-Bolt

Frame 5.5 40.0

Engine Mount (Rear) Frame 5.5 40.0

Front Differential**** Frame/Differential

Bracket

6.2 45.0

Rear Drive Gear Case Frame 6.2 45.0

Pinion Housing Differential Housing 2.9-3.5 21.0-

25.0

Differential Housing

Cover***

Differential Housing 2.9-3.5 21.0-

25.0

Drive Bevel Gear

Nut***

Shaft 11.0-

13.0

79.5-

94.0

Lock Collar Differential Housing 17.3 125.0

Hub Nut Shaft/Axle (max) 27.6 200.0

Oil Drain Plug Front Differential/

Rear Drive

0.5 3.5

Oil Fill Plug Front Differential/

Rear Drive

2.2 16.0

Oil Drain Plug Engine 2.2 16.0

Inspection Plug Front Differential 0.5 3.5

Wheel Hub 5.5 40.0

EXHAUST COMPONENTS

Muffler Frame 2.8 20.0

Exhaust Pipe Cylinder Head 1.9 14.0

ELECTRICAL COMPONENTS

Coil**** Frame 1.7 12.0

Ground Wire Engine 1.1 8.0

STEERING COMPONENTS

Handlebar Block Steering Post 2.8 20.0

Steering Post Bearing

Housing

Frame 2.8 20.0

Steering Post Bearing

Flange

Frame 2.8 20.0

Lower Steering Bearing

Washer Cap Screw***

Steering Post 5.5 40.0

Tie Rod End Knuckle/Steering

Post

4.2 30.0

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

www.mymowerparts.com

10-6

* w/Blue Loctite #242

** w/Red Loctite #271

*** w/Green Loctite #609

****w/Blue Loctite #243

BRAKE COMPONENTS

Part Part Bolted To Torque

kg-m ft-lb

Brake Disc**** Hub 2.1 15.0

Brake Hose Caliper 2.8 20.0

Brake Hose Master Cylinder 2.8 20.0

Brake Hose Auxiliary Brake Cylinder 2.8 20.0

Master Cylinder Cover Master Cylinder 0.1 1.0

Auxiliary Brake Pedal Lever Axle 3.5 25.0

Hydraulic Caliper Suspension Knuckle 2.8 20.0

CHASSIS COMPONENTS

Footrest Frame (8 mm) 2.8 20.0

Footrest Frame (10 mm) 5.5 40.0

Shift Lever**** Shift Axle 1.1 8.0

SUSPENSION COMPONENTS (Front)

A-Arm Frame 4.8 35.0

Ball Joint Cap Screw Knuckle 4.8 35.0

Shock Absorber Frame 4.8 35.0

Shock Absorber Upper A-Arm 4.8 35.0

Knuckle A-Arm 4.8 35.0

SUSPENSION COMPONENTS (Rear)

A-Arm Frame 5.5 40.0

Shock Absorber (Upper) Frame 4.8 35.0

Shock Absorber (Lower) Lower A-Arm 2.8 20.0

Knuckle A-Arm 4.8 35.0

ENGINE/TRANSMISSION

Clutch Shoe Crankshaft 15.0 108.0

Clutch Cover/Housing

Assembly

Crankcase 0.9 6.5

Crankcase Half (6 mm) Crankcase Half 1.0 7.0

Crankcase Half (8mm) Crankcase Half 2.6 19.0

Cylinder Head (Cap Screw) Crankcase (Step 1)

(Step 2)

2.5

3.7

18.0

27.0

Cylinder Head (6 mm) Cylinder 1.0 7.0

Cylinder Head Cover Cylinder (Step 1)

Head (Step 2)

1.0

1.4

7.0

10.0

Driven Pulley Nut Fixed Face 10.9 79.0

Fixed Driven** Clutch Shaft 10.9 79.0

Ground Wire Engine 1.1 8.0

Magneto Cover Crankcase 1.1 8.0

Movable Drive Face** Driveshaft 10.9 79.0

Oil Pump Drive Gear Crank Balancer

Shaft

15.0 108.0

Output Shaft Gear Output Shaft 10.0 72.0

Recoil Starter Left-Side Cover 0.8 6.0

Rotor/Flywheel Nut Crankshaft 16.0 116.0

Cam Idler Shaft Cylinder Head 4.1 29.5

Starter Cup Crankshaft 3.8 27.5

V-Belt Cover Crankcase 0.9 6.5

Spark Plug Engine 1.1 8.0

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10-7

10

Tightening Torque

(General Bolts)

Torque Conversions

Type of Bolt

Thread

Diameter

A (mm)

Tightening Torque

kg-m ft-lb

(Conventional or

4 Marked Bolt)

5 0.2-0.4 1.5-3.0

6 0.4-0.7 3.0-5.0

8 1.0-1.6 7.0-11.5

10 2.2-3.5 16.0-25.5

(7 Marked Bolt) 5 0.3-0.6 2.0-4.5

6 0.8-1.2 6.0-8.5

8 1.8-2.8 13.0-20.0

10 4.0-6.0 29.0-43.5

ft-lb kg-m ft-lb kg-m ft-lb kg-m ft-lb kg-m ft-lb kg-m

10.1 21 2.9 41 5.7 61 8.4 81 11.2

20.3 22 3.0 42 5.8 62 8.6 82 11.3

30.4 23 3.2 43 5.8 63 8.7 83 11.5

40.6 24 3.3 44 6.1 64 8.9 84 11.6

50.7 25 3.5 45 6.2 65 9.0 85 11.8

60.8 26 3.6 46 6.4 66 9.1 86 11.9

71.0 27 3.7 47 6.5 67 9.3 87 12.0

81.1 28 3.9 48 6.6 68 9.4 88 12.2

91.2 29 4.0 49 6.8 69 9.5 89 12.3

10 1.4 30 4.2 50 6.9 70 9.7 90 12.5

11 1.5 31 4.3 51 7.1 71 9.8 91 12.6

12 1.7 32 4.4 52 7.2 72 10.0 92 12.8

13 1.8 33 4.6 53 7.3 73 10.1 93 12.9

14 1.9 34 4.7 54 7.5 74 10.2 94 13.0

15 2.1 35 4.8 55 7.6 75 10.4 95 13.1

16 2.2 36 5.0 56 7.7 76 10.5 96 13.3

17 2.4 37 5.1 57 7.9 77 10.7 97 13.4

18 2.5 38 5.3 58 8.0 78 10.8 98 13.6

19 2.6 39 5.4 59 8.2 79 10.9 99 13.7

20 2.8 40 5.5 60 8.3 80 11.1 100 13.8

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11-1

11

SECTION 11 — TROUBLESHOOTING

TABLE OF

CONTENTS

Engine ………………….…………….…………….…………. 11-2

Drive………….…………….…………….…………….…… 11-5

Fuel System (400/500/650 H1) ………………..……… 11-6

Fuel System (700 EFI) ………………..………….……… 11-6

Electrical………….…………….…………….…………….… 11-7

Steering/Suspension ………….…………….……………. 11-9

Brakes ……………….………….…………….…………….. 11-10

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11-2

Engine

NOTE: A Condition/Remedy marked with an

asterisk (*) is for manual transmission models

only.

Problem: Engine will not start or is hard to start (Compression too low)

Condition Remedy

1. Valve clearance out of adjustment 1. Adjust clearance

2. Valve guides worn — seated poorly 2. Repair — replace guides

3. Valves mistimed 3. Adjust valve timing

4. Piston rings worn excessively 4. Replace rings

5. Cylinder bore worn 5. Replace — rebore cylinder

6. Spark plug seating poorly 6. Tighten plug

7. Starter motor cranks too slowly — does not turn 7. See Electrical in this section

Problem: Engine will not start or is hard to start (No spark)

Condition Remedy

1. Spark plug fouled 1. Clean — replace plug

2. Spark plug wet 2. Clean — dry plug

3. Magneto defective 3. Replace magneto

4. CDI unit/ECU defective 4. Replace CDI unit/ECU

5. Ignition coil defective 5. Replace ignition coil

6. High-tension lead open — shorted 6. Replace high tension lead

Problem: Engine will not start or is hard to start (No fuel reaching the carburetor/fuel injector)

Condition Remedy

1. Gas tank vent hose obstructed 1. Clean vent hose

2. Carburetor float valve defective 2. Replace valve

3. Fuel hose obstructed 3. Clean — replace hose

4. Fuel screens obstructed 4. Clean — replace inlet screen — valve screen

5. Fuel pump defective 5. Replace fuel pump

Problem: Engine stalls easily

Condition Remedy

1. Spark plug fouled 1. Clean plug

2. Magneto defective 2. Replace magneto

3. CDI unit/ECU defective 3. Replace CDI unit/ECU

4. Carburetor jets/fuel injector obstructed 4. Clean jets/replace fuel injector

5. Valve clearance out of adjustment 5. Adjust clearance

Problem: Engine noisy (Excessive valve chatter)

Condition Remedy

1. Valve clearance too large 1. Adjust clearance

2. Valve spring(s) weak — broken 2. Replace spring(s)

3. Rocker armrocker arm shaft worn 3. Replace arm — shaft

4. Camshaft worn 4. Replace camshaft

5. Valve tappets worn 5. Replace tappets

Problem: Engine noisy (Noise seems to come from piston)

Condition Remedy

1. Piston — cylinder worn 1. Replace — service piston — cylinder

2. Combustion chamber carbon buildup 2. Clean chamber

3. Piston pin — piston pin bore worn 3. Replace — service pin — bore

4. Piston rings — ring groove(s) worn 4. Replace rings — piston

Problem: Engine noisy (Noise seems to come from timing chain)

Condition Remedy

1. Chain stretched 1. Replace chain

2. Sprockets worn 2. Replace sprockets

3. Tension adjuster malfunctioning 3. Repair — replace adjuster

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11-3

11

Problem: Engine noisy (Noise seems to come from clutch)

Condition * Remedy *

1. Crankshaft splines — bearings worn 1. Replace crankshaft — bearings

2. Countershaft — hub splines worn 2. Replace countershaft — hub

3. Clutch plate teeth worn 3. Replace clutch plate(s)

4. Driven — drive clutch plates distorted — broken 4. Replace clutch plate(s)

5. Clutch dampers weak 5. Replace dampers

Problem: Engine noisy (Noise seems to come from crankshaft)

Condition Remedy

1. Bearing worn — burned 1. Replace bearing

2. Lower rod-end bearing worn — burned 2. Replace bearing

3. Connecting rod side clearance too large 3. Replace thrust washer(s)

Problem: Engine noisy (Noise seems to come from transmission)

Condition Remedy

1. Gears worn — rubbing 1. Replace gears

2. Splines worn 2. Replace shaft(s)

3. Primary gears worn — rubbing 3. Replace gears

4. Bearings worn 4. Replace bearings

5. Bushing worn 5. Replace bushing

Problem: Engine noisy (Noise seems to come from secondary-transmission/left-side cover)

Condition * Remedy *

1. Gears — shaft(s) worn 1. Replace gears — shafts

2. Bearing(s)/bushing(s) damaged 2. Replace bearing(s)/bushing(s)

Problem: Engine noisy (Noise seems to come from secondary bevel gear and final driven shaft)

Condition Remedy

1. Drive — driven bevel gears damaged — worn 1. Replace gears

2. Backlash excessive 2. Adjust backlash

3. Tooth contact improper 3. Adjust contact

4. Bearing damaged 4. Replace bearing

5. Gears worn — rubbing 5. Replace gears

6. Splines worn 6. Replace shaft(s)

7. Final driven shaft thrust clearance too large 7. Replace thrust washer(s)

Problem: Clutch slipping

Condition * Remedy *

1. Release roller out of adjustment — loss of free-play 1. Adjust clutch bolts 1 & 2

2. Clutch springs weak 2. Replace springs

3. Clutch shoes worn 3. Replace shoes

4. Pressure disc worn — distorted 4. Replace disc

5. Clutch plates (driven — drive) distorted 5. Replace plates

Problem: Clutch dragging

Condition * Remedy *

1. Clutch release roller out of adjustment — too much

free-play

1. Adjust clutch bolts 1 & 2

2. Clutch springs weak 2. Replace springs

3. Pressure disc — clutch plates distorted 3. Replace disc — plates

4. Clutch release mechanism worn — damaged 4. Adjust — replace mechanism

Problem: Transmission will not shift

Condition * Remedy *

1. Gearshift cam broken 1. Replace cam

2. Gearshift forks distorted 2. Replace forks

3. Gearshift shaft worn 3. Replace shaft

4. Clutch release mechanism worn — damaged 4. Adjust — replace mechanism

5. Gearshift linkage adjusted improperly 5. Adjust linkage

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11-4

Problem: Transmission will not shift back

Condition * Remedy *

1. Reverse shift cam broken 1. Replace cam

2. Shift shafts rubbing — sticking 2. Replace shafts

3. Gearshift forks distorted — worn 3. Replace forks

4. Gearshift lever return spring broken — damaged 4. Replace spring

Problem: Transmission jumps out of gear

Condition * Remedy *

1. Shifting gears (driveshaft — countershaft) worn 1. Replace gears

2. Gearshift forks distorted — worn 2. Replace forks

3. Cam stopper spring (gearshift cam) weak 3. Replace spring

4. Gearshift lever stopper pin worn 4. Replace pin

Problem: Secondary-transmission will not shift or shift back

Condition * Remedy *

1. Sliding dog broken — worn 1. Replace dog

2. Gearshift fork broken — worn 2. Replace fork

3. Shift lever out of adjustment 3. Adjust lever

4. Gearshift cam worn 4. Replace cam

5. Cam stopper spring weak 5. Replace spring

6. Gearshift fork shaft worn 6. Replace shaft

Problem: Engine idles poorly

Condition Remedy

1. Valve clearance out of adjustment 1. Adjust clearance

2. Valve seating poor 2. Replace — service seats — valves

3. Valve guides defective 3. Replace guides

4. Rocker arms — arm shaft worn 4. Replace arms — shafts

5. Magneto defective 5. Replace magneto

6. CDI unit/ECU defective 6. Replace CDI unit/ECU

7. Spark plug fouled — gap too wide 7. Adjust gap — replace plug

8. Ignition coil defective 8. Replace ignition coil

9. Float out of adjustment 9. Adjust float height

10. Jets obstructed 10. Clean jets

11. Pilot screw setting improper 11. Adjust pilot screw

12. Fuel injector obstructed 12. Replace fuel injector

Problem: Engine runs poorly at high speed

Condition Remedy

1. High RPM “cut out” against RPM limiter 1. Shift into higher gear — decrease speed

2. Valve springs weak 2. Replace springs

3. Valve timing out of adjustment 3. Adjust timing

4. Cams — rocker arms — tappets worn 4. Replace cams — arms — tappets

5. Spark plug gap too narrow 5. Adjust gap

6. Ignition coil defective 6. Replace ignition oil

7. Float level too low 7. Adjust float height

8. Air cleaner element obstructed 8. Clean element

9. Fuel hose obstructed 9. Clean or replace hose

10. Fuel pump defective 10. Replace fuel pump

Problem: Exhaust smoke dirty or heavy

Condition Remedy

1. Oil (in the engine) overfilled — contaminated 1. Drain excess oil — replace oil

2. Piston rings — cylinder worn 2. Replace — service rings — cylinder

3. Valve guides worn 3. Replace guides

4. Cylinder wall scored — scuffed 4. Replace — service cylinder

5. Valve stems worn 5. Replace valves

6. Stem seals defective 6. Replace seals

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11-5

11

Drive

Problem: Engine lacks power

Condition Remedy

1. Valve clearance incorrect 1. Adjust clearance

2. Valve springs weak 2. Replace springs

3. Valve timing incorrect 3. Re-time valve gear

4. Piston ring(s) — cylinder worn 4. Replace — service rings — cylinder

5. Valve seating poor 5. Repair seats

6. Spark plug fouled 6. Clean — replace plug

7. Rocker arms — shafts worn 7. Replace arms — shafts

8. Spark plug gap incorrect 8. Adjust gap — replace plug

9. Carburetor jets/fuel injector obstructed 9. Clean jets — replace injector

10. Float level out of adjustment 10. Adjust float height

11. Air cleaner element obstructed 11. Clean element

12. Oil (in the engine) overfilled — contaminated 12. Drain excess oil — change oil

13. Intake manifold leaking air 13. Tighten — replace manifold

14. Cam chain worn 14. Replace cam chain

Problem: Engine overheats

Condition Remedy

1. Carbon deposit (piston crown) excessive 1. Clean piston

2. Oil low 2. Add oil

3. Octane low — gasoline poor 3. Drain — replace gasoline

4. Oil pump defective 4. Replace pump

5. Oil circuit obstructed 5. Clean circuit

6. Gasoline level (in float chamber) too low 6. Adjust float height

7. Intake manifold leaking air 7. Tighten — replace manifold

8. Coolant level low 8. Fill — examine system for leaks

9. Fan malfunctioning 9. Check fan fuse — replace fan

10. Fan switch malfunctioning 10. Replace fan switch

11. Thermostat stuck — closed 11. Replace thermostat

12. Radiator hoses — cap damaged — obstructed 12. Clear obstruction — replace hoses

Problem: Power not transmitted from engine to wheels

Condition Remedy

1. Rear axle shaft serration worn — broken 1. Replace shaft

Problem: Power not transmitted from engine to either front wheel

Condition Remedy

1. Secondary drive — driven gear teeth broken 1. Replace gear(s)

2. Propeller shaft serration worn — broken 2. Replace shaft

3. Coupling damaged 3. Replace coupling

4. Coupling joint serration worn — damaged 4. Replace joint

5. Front drive — driven bevel gears broken — damaged 5. Replace gear(s)

6. Front differential gears/pinions broken — damaged 6. Replace gears — pinions

7. Sliding dog/shaft/fork worn — damaged 7. Replace gear(s)

8. Front drive axle worn — damaged 8. Replace axle

9. Front drive axle serration worn — damaged 9. Replace axle

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11-6

Fuel System

(400/500/650 H1)

Fuel System

(700 EFI)

Problem: Starting impaired

Condition Remedy

1. Starter jet obstructed 1. Clean jet

2. Starter jet passage obstructed 2. Clean passage

3. Carburetor leaking air 3. Replace gasket

4. Gas contaminated 4. Drain gas tank and fill with clean gas

Problem: Idling or low speed impaired

Condition Remedy

1. Slow jet obstructed — loose 1. Clean — tighten jet

2. Slow jet outlet obstructed 2. Clean outlet

3. Low speed fuel screw setting incorrect 3. Adjust screw

4. Float height incorrect 4. Adjust float height

5. TPS out of adjustment 5. Adjust TPS

Problem: Medium or high speed impaired

Condition Remedy

1. High RPM “cut out” against RPM limiter 1. Shift into higher gear — decrease RPM speed

2. Main jet obstructed 2. Clean main jet

3. Needle jet obstructed 3. Clean needle jet

4. Vacuum piston not operating properly 4. Check piston operation

5. Filter obstructed 5. Clean filter

6. Float height incorrect 6. Adjust float height

Problem: Overflow and fuel level fluctuations

Condition Remedy

1. Float valve worn — damaged 1. Replace valve

2. Float valve spring broken 2. Replace spring

3. Float not working properly 3. Adjust float height — replace float

4. Float valve dirty 4. Clean valve

5. Float height too high — too low 5. Adjust float height

Problem: Starting impaired

Condition Remedy

1. Gas contaminated 1. Drain gas tank and fill with clean gas

Problem: Idling or low speed impaired

Condition Remedy

1. TPS out of adjustment 1. Adjust TPS

Problem: Medium or high speed impaired

Condition Remedy

1. High RPM “cut out” against RPM limiter 1. Decrease RPM speed

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11-7

11

Electrical

Problem: Spark absent or weak

Condition Remedy

1. Ignition coil defective 1. Replace ignition coil

2. Spark plug defective 2. Replace plug

3. Magneto defective 3. Replace magneto

4. CDI unit/ECU defective 4. Replace CDI unit/ECU

5. Pick-up coil defective 5. Replace pick-up coil

Problem: Spark plug fouled with carbon

Condition Remedy

1. Mixture too rich 1. Adjust carburetor

2. Idling RPM too high 2. Adjust carburetor

3. Gasoline incorrect 3. Change to correct gasoline

4. Air cleaner element dirty 4. Clean element

5. Spark plug incorrect (too cold) 5. Replace plug

6. Valve seals cracked — missing 6. Replace seals

7. Oil rings worn — broken 7. Replace rings

Problem: Spark plug electrodes overheat or burn

Condition Remedy

1. Spark plug incorrect (too hot) 1. Replace plug

2. Engine overheats 2. Service cooling system

3. Spark plug loose 3. Tighten plug

4. Mixture too lean 4. Adjust carburetor

Problem: Magneto does not charge

Condition Remedy

1. Lead wires/connections shorted — loose — open 1. Repair — replace — tighten lead wires

2. Magneto coils shorted — grounded — open 2. Replace magneto coils

3. Regulator/rectifier defective 3. Replace regulator/rectifier

Problem: Magneto charges, but charging rate is below the specification

Condition Remedy

1. Lead wires shorted — open — loose (at terminals) 1. Repair — tighten lead wires

2. Stator coils (magneto) grounded — open 2. Replace stator coils

3. Regulator/rectifier defective 3. Replace regulator/rectifier

4. Electrolyte low 4. Add distilled water

5. Cell plates (battery) defective 5. Replace battery

Problem: Magneto overcharges

Condition Remedy

1. Internal battery short circuited 1. Replace battery

2. Regulator/rectifier resistor damaged — defective 2. Replace resistor

3. Regulator/rectifier poorly grounded 3. Clean — tighten ground connection

Problem: Charging unstable

Condition Remedy

1. Lead wire intermittently shorting 1. Replace lead wire

2. Magneto internally shorted 2. Replace magneto

3. Regulator/rectifier defective 3. Replace regulator/rectifier

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11-8

Problem: Starter button not effective

Condition Remedy

1. Battery charge low 1. Charge — replace battery

2. Switch contacts defective 2. Replace switch

3. Starter motor brushes not seating 3. Repair — replace brushes

4. Starter relay defective 4. Replace relay

5. Emergency stop — ignition switch off 5. Turn on switches

6. Wiring connections loose — disconnected 6. Connect — tighten — repair connections

Problem: Battery “sulfation” (Acidic white powdery substance or spots on surfaces of cell plates)

Condition Remedy

1. Charging rate too low — too high 1. Replace battery

2. Battery electrolyte insufficient 2. Keep electrolyte to prescribed level

3. Specific gravity too low 3. Charge battery — add distilled water

4. Battery run-down — damaged 4. Replace battery

5. Electrolyte contaminated 5. Replace battery

Problem: Battery discharges too rapidly

Condition Remedy

1. Electrolyte contaminated 1. Replace battery

2. Specific gravity too low 2. Charge battery — add distilled water

3. Charging system not charging 3. Check magneto — regulator/rectifier — circuit

connections

4. Cell plates overcharged — damaged 4. Replace battery — correct charging system

5. Battery short-circuited 5. Replace battery

6. Specific gravity too low 6. Charge battery

Problem: Battery polarity reversed

Condition Remedy

1. Battery incorrectly connected 1. Reverse connections — replace battery — repair

damage

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

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11-9

11

Steering/Suspension

Problem: Handling too heavy or stiff

Condition Remedy

1. Front wheel alignment incorrect 1. Adjust alignment

2. Lubrication inadequate 2. Lubricate appropriate components

3. Tire inflation pressure low 3. Adjust pressure

4. Tie rod ends seizing 4. Replace tie rod ends

5. Linkage connections seizing 5. Repair — replace connections

Problem: Steering oscillation

Condition Remedy

1. Tires inflated unequally 1. Adjust pressure

2. Wheel(s) wobbly 2. Replace wheel(s)

3. Wheel hub cap screw(s) loose — missing 3. Tighten — replace cap screws

4. Wheel hub bearing worn — damaged 4. Replace bearing

5. Tie rod ends worn — loose 5. Replace — tighten tie rod ends

6. Tires defective — incorrect 6. Replace tires

7. A-arm bushings damaged 7. Replace bushings

8. Bolts — nuts (frame) loose 8. Tighten bolts — nuts

Problem: Steering pulling to one side

Condition Remedy

1. Tires inflated unequally 1. Adjust pressure

2. Front wheel alignment incorrect 2. Adjust alignment

3. Wheel hub bearings worn — broken 3. Replace bearings

4. Frame distorted 4. Repair — replace frame

5. Shock absorber defective 5. Replace shock absorber

Problem: Tire wear rapid or uneven

Condition Remedy

1. Wheel hub bearings worn — loose 1. Replace bearings

2. Front wheel alignment incorrect 2. Adjust alignment

3. Tire inflation pressure incorrect 3. Adjust pressure

Problem: Steering noise

Condition Remedy

1. Caps screws — nuts loose 1. Tighten cap screws — nuts

2. Wheel hub bearings broken — damaged 2. Replace bearings

3. Lubrication inadequate 3. Lubricate appropriate components

Problem: Suspension too soft

Condition Remedy

1. Spring(s) weak 1. Replace spring(s)

2. Shock absorber damaged 2. Replace shock absorber

3. Shock absorber preload too low 3. Adjust shock absorber preload

Problem: Suspension too stiff

Condition Remedy

1. A-arm-related bushings worn 1. Replace bushing

2. Shock absorber preload too high 2. Adjust shock absorber preload

Problem: Suspension noisy

Condition Remedy

1. Cap screws (suspension system) loose 1. Tighten cap screws

2. A-arm-related bushings worn 2. Replace bushings

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11-10

Brakes

Problem: Rear wheel oscillation

Condition Remedy

1. Rear wheel hub bearings worn — loose 1. Replace bearings

2. Tires defective — incorrect 2. Replace tires

3. Wheel rim distorted 3. Replace rim

4. Wheel hub cap screws loose 4. Tighten cap screws

5. Axle shaft nut loose (Manual Transmission) 5. Tighten nut (Manual Transmission)

6. Auxiliary brake adjusted incorrectly 6. Adjust brake

7. Rear suspension arm-related bushing worn 7. Replace bushing

8. Rear shock absorber damaged 8. Replace shock absorber

9. Rear suspension arm nut loose 9. Tighten nut

Problem: Braking poor

Condition Remedy

1. Pad worn 1. Replace pads

2. Pedal free-play excessive 2. Replace pads

3. Brake fluid leaking 3. Repair — replace hydraulic system component(s)

4. Hydraulic system spongy 4. Bleed hydraulic system — correct or repair leaks

5. Master cylinder/brake cylinder seal worn 5. Replace master cylinder

Problem: Brake lever travel excessive

Condition Remedy

1. Hydraulic system entrapped air 1. Bleed hydraulic system

2. Brake fluid low 2. Add fluid to proper level

3. Brake fluid incorrect 3. Drain system — replace with correct fluid

4. Piston seal — cup worn 4. Replace master cylinder

Problem: Brake fluid leaking

Condition Remedy

1. Connection joints loose 1. Tighten joint

2. Hose cracked 2. Replace hose

3. Piston seal worn 3. Replace brake caliper

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983

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