94
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
See your dealer
Incorrect spark plug gap or heat range
Set gap to specs or replace plugs
Idle set too low
Adjust idle speed
Possible Cause
Solution
Fouled or defective spark plug(s)
Inspect, clean and/or replace spark
plug(s)
Worn or defective spark plug wires
See your 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 12.8 VDC
Kinked or plugged fuel tank 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 dealer
Electronic throttle control malfunction
See your dealer
Other mechanical failure
See your dealer
Possible Lean Fuel 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 dealer
Possible Rich Fuel 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 dealer
