16
GENERAL TROUBLESHOOTING
No load speed is not
stable/consistent.
Incorrect carburetor
adjustment.
Re-adjust the carburetor.
The carburetor has an air
leakage.
Replace or re-tighten.
Fuel tube is broken.
Replace.
Crankcase washer has air
leakage.
Replace.
Fuel seal has air leakage.
Replace.
After releasing the throttle
lever, the trimmer head
continues to rotate.
Idle speed is too high.
Adjust the engine.
Clutch spring is broken.
Replace.
Clutch friction plate is
broken.
Replace.
The engine accelerates,
but the trimmer head does
not rotate.
7KHD[OHURWDWLQJVSOLQHRU
the transmission yoke spline
is worn out.
Replace.
Irregular vibration.
The trimmer head is not
balanced.
Repair or replace.
The drive shaft is bent.
Replace.
Worn bearings.
Replace.
Clutch is off center.
Replace.
