Owner's manual

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