1
3
TROUBLESHOOTING
TROUBLE
1. Engine fails to start.
2. Engine hard start.
3. Engine misses.
CAUSE
No fuel in tank.
Fuel filter clogged.
Fuel line clogged.
Spark plug shorted or fouled.
Spark plug broken (cracked
porcelain or electrodes broken).
Ignition lead wire shorted, broken
or disconnected from spark plug.
lgnition inoperative (no spark from
lead wire).
Water in gasoline or stale fuel
mixture.
Too much oil in fuel mixture.
Engine over or under choked.
Carburetor out of adjustment.
Gasket leaks (carburetor or
cylinder base gasket).
Weak spark at spark plug.
Dirt in fuel line or carburetor.
Carburetor improperly adjusted.
Spark plug fouled, broken or
incorrect gap setting.
Weak or intermittent spark at
spark plug.
WHAT TO DO
Fill tank.
Replace filter.
Clean fuel line.
Install new spark plug.
Replace spark plug.
Replace lead wire or attach to spark
plug.
Contact your nearest authorized
dealer.
Drain entire system and refill with
fresh fuel.
Drain and refill with correct mixture.
If flooded by over choking, proceed
according to instructions in previous
section. If under choked, move choke
knob to closed position and crank two
or three times.
See “Carburetor Adjustment”.
Contact your nearest authorized
dealer.
Contact your nearest authorized
dealer.
Remove and clean.
See “Carburetor Adjustment” in
maintenance section.
Clean or replace spark plug - set gap
to 0.6 - 0.7 mm (0.024 to 0.028 in.).
Contact your nearest authorized
dealer.