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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 Probable cause (malfunction) Remedy
Engine does not start
Failure to operate primer pump Push 7 to 10 times
Low pulling speed of starter rope Pull strongly
Lack of fuel Feed fuel
Clean
Broken fuel tube Straighten fuel tube
Deteriorated fuel
Replace with new one. (Recommended
replacement: 1 month)
Excessive suction of fuel Set throttle lever from medium speed to high
speed, and pull starter handle until engine
starts. Once engine starts, cutting blades
start moving. Pay full attention to cutting
blades.
If engine will not start still, remove spark plug,
make electrode dry, and reassemble them as
Detached plug cap Attach securely
Contaminated spark plug Clean
Abnormal clearance of spark plug Adjust clearance
Other abnormality of spark plug Replace
Abnormal carburetor Make request for inspection and maintenance.
Starter rope cannot be pulled Make request for inspection and maintenance.
Abnormal drive system Make request for inspection and maintenance.
Engine stops soon
Engine speed does not increase
Perform warm-up operation
warmed up.
Clean or replace
Contaminated or clogged air cleaner Clean
Abnormal carburetor Make request for inspection and maintenance.
Abnormal drive system Make request for inspection and maintenance.
Cutting blade does not move Inappropriate angle of cutter unit Make sure the angle lock engages properly.
Loosened cutting blades-tightening nut Tighten securely
Twigs caught by cutting blades. Remove foreign matter
Abnormal drive system Make request for inspection and maintenance.
Main unit vibrates abnormally
Stop engine immediately
Broken, bent or worn cutting blades Replace cutting blades
Loosened cutting blades-tightening nut Tighten securely
Abnormal drive system Make request for inspection and maintenance.
Cutting blades do not stop immediately
Stop engine immediately
High idling rotation Adjust
Detached throttle wire Attach securely
Abnormal drive system Make request for inspection and maintenance.
Engine does not stop
Run engine at idling, and set choke lever
to
Detached connector Attach securely
Abnormal electric system Make request for inspection and maintenance.
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.
TROUBLESHOOTING
Stop engine immediately
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