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SYMPTOM: Engine misfire
Possible causes What to do
1. Fouled/defective/
worn spark plugs.
Clean/verify spark plug and heat
range. Replace as required.
2. Too much oil supplied to engine. Improper oil pump adjustment, refer
to an authorized dealer. Improper
fuel/oil mixture. Drain fuel tank and
refill with appropriate mixture ratio.
3. Water in fuel. Drain fuel system and refill with fresh
fuel.
SYMPTOM: Snowmobile cannot reach full speed
Possible cause What to do
1. Drive belt. Check item 4 of “Engine lacks
acceleration or power”.
2. Incorrect track adjustment. See maintenance section and/or
dealer for proper alignment and
tension adjustments.
3. Pulleys misaligned. Contact an authorized dealer.
4. Engine. See items 1, 2, 6 and 7 of “Engine
lacks acceleration or power”.
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