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Page 14 For technical questions, please call 1-800-444-3353. SKU 96156
Troubleshooting
Engine will not
start
MOWER ENGINE SPECIFIC:
Brake Handle not held or brake 1.
cable not connected properly.
Mower on top of grass.2.
MOWER ENGINE SPECIFIC:
Make sure brake handle is held down and 1.
brake cable is properly adjusted.
Start mower atop clear area free of loose 2.
objects and grass.
FUEL RELATED:
No fuel in tank or fuel valve closed.1.
Choke not in start position, 2.
especially with cold engine.
Low quality or deteriorated, old 3.
gasoline.
Carburetor not primed. 4.
Dirty fuel passageways blocking fuel 5.
ow.
Carburetor needle stuck. Fuel can 6.
be smelled in the air.
Too much fuel in chamber. This can 7.
be caused by the carburetor needle
sticking.
FUEL RELATED:
Fill fuel tank and open fuel valve.1.
Move choke to start position if engine is 2.
cold.
Use only fresh 89+ octane unleaded 3.
gasoline.
Prime carburetor by pressing priming bulb 4.
specied number of times (if equipped).
Clean out passageways using fuel additive. 5.
Heavy deposits may require further
cleaning.
Gently6. tap side of carburetor oat chamber
with screwdriver handle.
Turn choke to run position. Remove spark 7.
plug and pull the start handle several times
to air out the chamber. Reinstall spark plug
and set choke to start position.
IGNITION (SPARK) RELATED:
Spark plug wire not connected 1.
securely.
Spark plug electrode wet or dirty.2.
Incorrect spark plug gap.3.
Spark plug wire or spark plug 4.
broken.
Incorrect spark timing or faulty 5.
ignition system.
IGNITION (SPARK) RELATED:
Connect spark plug wire properly. 1.
Clean spark plug.2.
Correct spark plug gap.3.
Replace spark plug wire and/or spark plug. 4.
Have qualied technician diagnose/repair 5.
ignition system.
COMPRESSION RELATED:
Cylinder not lubricated. Problem 1.
after long storage periods.
Loose or broken spark plug. 2.
(Hissing noise will occur when trying
to start.)
Loose cylinder head or damaged 3.
head gasket. (Hissing noise will
occur when trying to start.)
Engine valves or tappets 4.
misadjusted or stuck.
COMPRESSION RELATED:
Pour tablespoon of oil into spark plug hole. 1.
Crank engine a few times and try to start
again.
Tighten spark plug. If that does not work, 2.
replace spark plug. If problem persists, may
have head gasket problem, see #3.
Tighten head. If that does not remedy 3.
problem, replace head gasket.
Adjust valve clearance. If that does not 4.
work, clean or replace valves/tappets.
Follow all safety precautions whenever diagnosing or
servicing the engine.