Polaris Sportsmabn X2 500 EFI - Manual (Page 123)

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TROUBLESHOOTING
Engine Pings or Knocks
Possible Cause Solution
Poor quality or low octane fuel Replace with recommended fuel
Incorrect ignition timing See your Polaris dealer
Incorrect spark plug gap or heat range Set gap to specs or replace plug
Engine Runs Irregularly, Stalls or Misfires
Possible Weak Spark Cause Solution
Fouled or defective spark plug Inspect, clean and/or replace spark plug
Worn or defective spark plug wires See your Polaris dealer
Incorrect spark plug gap or heat range Set gap to specs or replace plug
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
Kinked or plugged fuel tank vent line Inspect and replace
Low octane fuel Replace with recommended fuel
Clogged fuel filter Replace filter
Possible Rich Fuel Mixture Cause Solution
Fuel is very high octane Replace with lower octane fuel
Stopping/starting without adequate warm-
up
Allow engine to warm up before operat-
ing and/or stopping
Incorrect fuel Replace with recommended fuel
Clogged air filter Inspect and clean or replace