2012 Polaris Ranger 800 Crew Owners Manual - Page 91

2012 Polaris Ranger 800 Crew Manual

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TROUBLESHOOTING Engine Backfires Possible Cause Weak spark from spark plug Incorrect spark plug gap or heat range Old or non-recommended fuel Incorrectly installed spark plug wires Incorrect ignition timing Mechanical failure Loose ignition connections Water present in fuel Solution Inspect, clean and/or replace spark plugs Set gap to specs or replace plugs Replace with fresh recommended fuel See your dealer See your dealer See your dealer Check all connections and tighten Replace with fresh recommended fuel Engine Pings or Knocks Possible Cause Poor quality or low octane fuel Incorrect ignition timing Incorrect spark plug gap or heat range Solution Replace with recommended fuel See your dealer Set gap to specs or replace plugs 87

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87
TROUBLESHOOTING
Engine Backfires
Engine Pings or Knocks
Possible Cause
Solution
Weak spark from spark plug
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 fresh recommended fuel
Incorrectly installed spark plug wires
See your dealer
Incorrect ignition timing
See your dealer
Mechanical failure
See your dealer
Loose ignition connections
Check all connections and tighten
Water present in fuel
Replace with fresh recommended fuel
Possible Cause
Solution
Poor quality or low octane fuel
Replace with recommended fuel
Incorrect ignition timing
See your dealer
Incorrect spark plug gap or heat range
Set gap to specs or replace plugs