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11. TROUBLES SHOOTING
PROBLEM
PROBABLE CAUSE
CORRECTIVE ACTION
Engine does
not start.
Fuel tank is empty.
Fill tank with fuel: refer to ENGINE OWNERS MANUAL.
Air cleaner element is dirty.
Clean air cleaner element: refer to ENGINE OWNERS
MANUAL
Spark plug loose.
Tighten spark plug
：
refer to ENGINE OWNERS
MANUAL
Spark plug wire loose or
disconnected from plug.
Install spark plug wire on spark plug.
Spark plug gap is incorrect.
Set the gap between electrodes: refer to ENGINE
OWNERS MANUAL
Spark plug is defective
Install new, correctly gapped plug: refer to ENGINE
OWNERS MANUAL
Carburetor is flooded with
fuel
Remove the air cleaner element and pull starter rope
continuously until carburetor clears itself and install air
cleaner element.
Faulty ignition module
Contact the service agent.
Engine difficult
to start or loses
power.
Dirt, water, or stale in the
fuel tank.
Drain fuel and clean the tank. Fill the tank with clean,
fresh fuel
Vent hole in fuel tank cap is
plugged.
Clean or replace fuel tank cap.
Air cleaner element is dirty.
Clean air cleaner element.
Engine
operates
erratically.
Spark plug is defective.
Install new, correctly gapped plug: refer to ENGINE
OWNERS MANUAL
Spark plug gap is incorrect.
Set gap between electrodes: refer to ENGINE OWNERS
MANUAL
Air cleaner element is dirty.
Clean the air cleaner element: refer to ENGINE
OWNERS MANUAL
Engine idles
poorly.
Air cleaner element is dirty.
Clean air cleaner element: refer to ENGINE OWNERS
MANUAL
Air slots in engine shroud
are blocked.
Remove debris from the shroud.
Cooling fins and air
passages under engine
blower housing are blocked.
Remove debris from the cooling fins and air passages.
Engine skips at
high speed.
Gap between electrodes of
spark plug is too close.
Set gap between electrodes: refer to ENGINE OWNERS
MANUAL
Engine
overheats
Cooling air flow is restricted. Remover any debris from slots in shroud, blower
housing, air passages
Incorrect spark plug.
Install spark plug and clear cooling fins on the engine.
Mower vibrates
abnormally
Cutting assembly is loose.
Tighten blade
Cutting assembly is
unbalanced
Balance blade.
