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TROUBLESHOOTING
Before making a request for repairs, check a trouble for yourself. If any abnormality is found, control your machine according to the description of
this manual. Never tamper or dismount any part contrary to the description. For repairs, contact Authorized Service Agent or local dealership.
State of abnormality
Engine does not start
Engine stops soon
Engine speed does not increase
Cutter blade does not rotate
Stop engine immediately
Main unit vibrates abnormally.
Stop engine immediately
Cutter blade does not stop immediately.
Stop engine immediately
Engine does not stop.
Run engine at idling, and set choke
lever to CLOSE.
When the engine does not start after warm-up operation:
If there is no abnormality found for the check items, open the throttle by about 1/3 and start the engine.
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Probable cause (malfunction)
Failure to operate primer pump
Low pulling speed of starter rope
Lack of fuel
Clogged fuel filter
Broken fuel tube
Deteriorated fuel
Excessive suction of fuel
Detached plug cap
Contaminated spark plug
Abnormal clearance of spark plug
Other abnormality of spark plug
Abnormal carburetor
Starter rope cannot be pulled
Abnormal drive system
Insufficient warm-up
Choke lever is set to "CLOSE" although engine
is warmed up
Clogged fuel filter
Contaminated or clogged air cleaner
Abnormal carburetor
Abnormal drive system
Loosened cutter blade-tightening nut
Twigs caught by cutter blade or
dispersion-preventing cover
Abnormal drive system
Broken, bent or worn cutter blade
Loosened cutter blade-tightening nut
Shifted convex part of cutter blade and cutter
blade support fitting
Abnormal drive system
High idling rotation
Detached throttle wire
Abnormal drive system
Detached connector
Abnormal electric system
23
Remedy
Push 7 to 10 times.
Pull strongly.
Feed fuel.
Clean
Straighten fuel tube
Deteriorated fuel makes starting more difficult.
Replace with new one. (Recommended
replacement: 1 month)
Set throttle lever from medium speed to high
speed, and pull starter handle until engine
starts. Once engine starts, cutter blade
starts rotating. Pay full attention to cutter
blade.
If engine will not start still, remove spark plug,
make electrode dry, and reassemble them as
they originally are. Then, start as specified.
Attach securely
Clean
Adjust clearance
Replace
Make request for inspection and maintenance.
Make request for inspection and maintenance
Make request for inspection and maintenance
Perform warm-up operation
Set to "OPEN"
Clean
Clean
Make request for inspection and maintenance
Make request for inspection and maintenance
Tighten securely
Remove foreign matter
Make request for inspection and maintenance.
Replace cutter blade
Tighten securely
Attach securely
Make request for inspection and maintenance
Adjust
Attach securely
Make request for inspection and maintenance
Attach securely
Make request for inspection and maintenance.
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