114
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
Engine Runs Irregularly, Stalls or Misfires
Possible Weak Spark Cause
Solution
Fouled or defective spark plugs
Inspect, clean and/or replace spark plugs
Worn or defective spark plug wires
See your Polaris dealer
Incorrect spark plug gap or heat range
Set gap to specs or replace plugs
Loose ignition connections
Check all connections and tighten
Water present in fuel
Replace with new fuel
Low battery voltage
Recharge battery to 12.5 VDC
Kinked or plugged fuel vent line
Inspect and replace
Incorrect fuel
Replace with recommended fuel
Clogged air filter
Inspect and clean or replace
Reverse speed limiter malfunction
See your Polaris dealer
Electronic throttle control malfunction
See your Polaris dealer
Other mechanical failure
See your Polaris dealer
Possible Lean Fuel Mixture Cause Solution
Low or contaminated fuel
Add or change fuel, clean the fuel system
Low octane fuel
Replace with recommended fuel
Clogged fuel filter
Replace filter
Incorrect jetting
See your Polaris dealer
Possible Rich Fuel Mixture Cause
Solution
Overuse of choke
Inspect, clean and/or replace spark plugs
Fuel is very high octane
Replace with lower octane fuel
Incorrect jetting
See your Polaris dealer
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