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105 TROUBLESHOOTING Engine Pings or Knocks Engine Runs Irregularly, Stalls or Misfires Possible Cause Solution Poor quality or low octane fuel Replace with recommended fuel Incorrect ignition timing Your POLARIS dealer can assist. Incorrect spark plug gap/heat range Set gap to specs or replace plug Possible Cause Solution Fouled or defective spark plug Inspect/clean/replace spark plug Worn or defective spark plug wires Your POLARIS dealer can assist. Incorrect spark plug gap/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 12.8 VDC Kinked/plugged fuel tank vent line Inspect and replace Incorrect fuel Replace with recommended fuel Clogged air filter Inspect and clean or replace ETC malfunction Your POLARIS dealer can assist. Other mechanical failure Your POLARIS dealer can assist. Possible Lean Fuel Cause Solution Low or contaminated fuel Add/change fuel, clean fuel system Low octane fuel Replace with recommended fuel Clogged fuel filter Your POLARIS dealer can assist. Incorrect fuel Replace with recommended fuel Possible Rich Fuel Cause Solution Fuel is very high octane Replace with lower octane fuel Stopping/starting without adequate warm-up Allow engine to warm up before operating and/or stopping Incorrect fuel Replace with recommended fuel Clogged air filter Inspect and clean or replace |