Troubleshooting, Engine backfires – Polaris Outlaw 9921488 User Manual

Page 181

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178

Troubleshooting

Engine Backfires

Possible Cause

Solution

Weak spark from spark plugs

Inspect, clean and/or replace spark plugs

Incorrect spark plug gap or heat range

Set gap to specs or replace plugs

Old or non-recommended fuel

Replace with new fuel

Incorrectly installed spark plug wires

See your Polaris dealer

Incorrect ignition timing

See your Polaris dealer

Mechanical failure

See your Polaris dealer

Exhaust system leak

See your Polaris dealer

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This manual is related to the following products:

2005 ATV Sportsman 90, 2005 ATV Predator 50, 2005 ATV Predator 90, 2006 ATV Predator 50, 2006 ATV Predator 90, 2006 ATV Sportsman 90, Sprotsman 90, Predator 50, 2000 ATV Universal ATV, 1998 ATV Scrambler 500, Offroad Vehicle, Sprotsman 700, Scrambler 50, 2003 ATV Predator 90, Predator 9920872, 2007 ATV Outlaw 90, 2007 ATV Sportsman 90

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