Problem Possible cause Solution
The engine does not stop. The stop mechanism is defective. Disconnect the ignition cable from the spark
plug. Let an approved service agent repair
the product.
The engine does not operate
smoothly.
The ignition cable is not connec-
ted correctly.
Connect the ignition cable to the spark plug.
There is dirt in the fuel line or the
fuel has expired.
Clean the fuel line. Fill the fuel tank with new
fuel of the correct type.
There is blockage in the fuel tank
cap.
Clean the fuel tank cap.
There is water or dirt in the fuel
system.
Drain the fuel tank. Fill the fuel tank with new
fuel of the correct type.
The air filter is dirty. Clean the air filter.
The carburetor must be adjusted. Let a servicing dealer adjust the carburetor.
The engine becomes too hot. The engine oil level is too low. Fill engine oil.
The air flow is not sufficient. Clean the air filter and the air filter housing.
The carburetor must be adjusted. Let a servicing dealer adjust the carburetor.
There is misfire in the engine
when it operates at high speed.
The electrode gap in the spark
plug is too small.
Adjust the electrode gap.
The engine does not operate
smoothly at idle speed.
The spark plug is dirty, defective
or the electrode gap is too wide.
Adjust the electrode gap or replace the spark
plug.
The carburetor must be adjusted. Adjust the carburetor.
The air filter is dirty. Clean the air filter.
There is too much vibration in the
handle.
A blade is loose or not balanced. Tighten the blade bolts. Replace the blades if
there are damages.
A blade is bent. Replace the blades if there are damages.
The grass is not cut into mulch. The grass is wet. Do not operate the product when the grass is
wet. Wait until the grass is dry.
The grass is too high. Cut first with the cutting height set high. Low-
er the cutting height and cut again.
Cut only ½ of the cutting width at a time.
One or more of the blades are
not sufficiently sharp.
Sharpen or replace the blades.
The grass is cut irregularly. The wheels are not in correct po-
sition.
Set the cutting height at the same level for all
4 wheels.
One or more of the blades are
not sufficiently sharp.
Sharpen or replace the blades.
The drive system does not oper-
ate correctly
The drive belt is not sufficiently
tight or there is dirt on the pulleys
or drive belt.
Let an approved service agent do mainte-
nance on the drive system.
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