Engine lacks acceleration or power
1. Fouled or damaged spark plug.
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Check item ENGINE TURNS OVER BUT FAILS TO START.
2. Lack of fuel to engine.
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Check item ENGINE TURNS OVER BUT FAILS TO START.
3. Carburetor adjustments.
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Contact an authorized Bombardier ATV dealer.
4. Engine is overheating.
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Check ENGINE OVERHEATING in SPECIAL PROCEDURES.
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If overheating persists, contact an authorized Bombardier ATV dealer.
5. Air filter/box plugged or dirty.
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Check air filter and clean if necessary.
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Check deposits in air box drain.
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Check the position of the air intake tube.
6. CVT dirty or wear.
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Contact an authorized Bombardier ATV dealer.
Engine backfire
1. Exhaust system leakage.
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Contact an authorized Bombardier ATV dealer.
2. Engine is running too hot.
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See ENGINE LACKS ACCELERATION OR POWER.
3. Ignition timing is incorrect or there is an ignition system failure.
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Contact an authorized Bombardier ATV dealer.
4. Improper carburetor setting.
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Contact an authorized Bombardier ATV dealer.
Engine misfire
1. Fouled/damaged/worn spark plug.
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Clean/verify spark plug and heat range. Replace as required.
2. Water in fuel.
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Drain fuel system and refill with fresh fuel.
Unusual engine noise
1. Oil filter and/or oil pressure regulator plugged.
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Change oil filter and engine oil.
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Clean oil pressure regulator.
2. Valve adjustment.
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Contact an authorized Bombardier ATV dealer.
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