Makita PM7651H, Instruction Manual

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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 Probable cause (malfunction) Remedy
Engine does not start. I-O switch is set to STOP. Set the I-O switch to START.
Failure to operate primer pump. Push 7 to 10 times.
Low pulling speed of starter rope. Pull strongly.
Lack of fuel. Feed fuel.
Incorrect choke position.
Set to “CLOSE” (cold start).
Set to “OPEN” (warm start).
Clogged fuel filter. Clean.
Bent or blocked fuel tube. Straighten or replace fuel tube.
Deteriorated fuel.
Deteriorated fuel makes starting more difficult.
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.
If engine will not start still, remove spark plug,
make electrode dry, and reassemble them as
they originally are. Then, start as specified.
Detached plug cap. Attach securely.
Contaminated spark plug. Clean.
Abnormal clearance of spark plug. Adjust clearance.
Abnormality of spark plug. Replace.
Abnormal carburetor. Make request for inspection and maintenance.
Starter rope cannot be pulled, or no
compression is felt.
Make request for inspection and maintenance.
Abnormal drive system/electric system.
(I-O switch fault, wiring fault, connector
fault, etc.).
Make request for inspection and maintenance.
Engine stops soon.
Engine speed does not increase.
Insufficient warm-up. Perform warm-up operation.
Choke lever is set to “CLOSE” although
engine is warmed up.
Set to “OPEN”.
Low idle speed. Adjust idle speed.
Clogged fuel filter. Clean.
Contaminated or clogged air cleaner. Clean.
Abnormal carburetor. Make request for inspection and maintenance.
Exhaust muffler fault (clogged etc.). Make request for inspection and maintenance.
Abnormal drive/electric system. Make request for inspection and maintenance.
Detached throttle wire. Attach securely.
Engine does not stop.
Run engine at idling, and set choke lever to
CLOSE.
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.