2003 Polaris Universal Youth ATV Owners Manual - Page 176
2003 Polaris Universal Youth ATV Manual
Page 176 highlights
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 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 174
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174
Troubleshooting
EngineBackfires
PossibleCause
Solution
Weaksparkfromsparkplugs
Inspect,cleanand/orreplacesparkplugs
Incorrectsparkpluggaporheatrange
Setgaptospecsorreplaceplugs
Oldornon-recommendedfuel
Replacewithnewfuel
Incorrectlyinstalledsparkplugwires
SeeyourPolarisdealer
Incorrectignitiontiming
SeeyourPolarisdealer
Mechanicalfailure
SeeyourPolarisdealer