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20
1045 - 001 -
01.06.2020
Troubleshooting
Engine does not start.
Problem
Possible cause
Recommended procedure
Fuel tank
Improper fuel type.
Dispose of the wrong fuel and use the correct fuel.
Carburetor
Inappropriate idling speed.
Adjust the idling speed.
Refer to
Idling speed adjustment procedure on page 16
Contact your dealer if necessary.
Does not ignite
The spark plug is dirty or wet.
If carbon or dirt adheres to the electrode of the spark
plug, clean it with a wire brush. If the electrode is wet, dry
it.
Incorrect electrode gap.
Adjust the electrode gap of the spark plug correctly.
For the correct electrode gap, refer to
Spark plug
The spark plug is loose.
Tighten the spark plug.
Fuel filter
The fuel filter is clogged.
Clean the fuel filter.
The engine starts but stops.
Problem
Possible cause
Recommended procedure
Fuel tank
Improper fuel type.
Dispose of the wrong fuel and use the correct fuel.
Carburetor
Inappropriate idling speed.
Adjust the idling speed.
Refer to
Idling speed adjustment procedure on page 16
Contact your dealer if necessary.
Air filter
The air filter is clogged.
Clean the air filter.
Fuel filter
The fuel filter is clogged.
Clean the fuel filter.
Engine cooling parts Branches and leaves are
clogged.
Clean the cooling air intake and cylinder fins. Refer to
Engine cooling parts cleaning procedure on page 16
Blades
Problem
Possible cause
Recommended procedure
The blades move
slowly or do not
move.
The blades are clogged or
damaged.
Remove any jams between the blades.
Deburr the blades.
Blade inspection procedure on page 19
If the blades are damaged, replace them.
The blades do not
cut well.
The blades are not sharp or
damaged.
Dress the blades.
Refer to
Blade inspection procedure on page 19
If they are damaged, replace the blades.
The blades get hot. There is friction on the blades.
Deburr the blades and lubricate the blades.
Blade inspection procedure on page 19