ENGINE RUNS IRREGULARLY, STALLS OR MISFIRES
POSSIBLE CAUSE
SOLUTION
Fouled or defective spark plug
Inspect, clean and/or replace spark plugs
Worn or defective spark plug
wires
An authorized dealer can assist
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
Clogged fuel cap vent
Inspect and replace
Incorrect fuel
Replace with recommended fuel
Clogged air filter
Inspect and clean or replace
Throttle control malfunction
An authorized dealer can assist
Other mechanical failure
An authorized dealer can assist
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
An authorized 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
89