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Troubleshooting
Engine Backfires
Possible Cause
Weak spark from spark plugs
Incorrect spark plug gap or heat range
Old or non-recommended fuel
Incorrectly installed spark plug wires
Incorrect ignition timing
Mechanical failure
Exhaust system leak
172
Solution
Inspect, clean and/or replace spark plugs
Set gap to specs or replace plugs
Replace with new fuel
See your POLARIS dealer
See your POLARIS dealer
See your POLARIS dealer
See your POLARIS dealer
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