Symptom: Clutch slips Diagnosis procedures
Clutch slips
Manually controlled wet multi-plate clutch slips
Automatic centrifugal dry type shoe clutch slips
Check if clearance of clutch handle
bar is within 10mm~20mm.
Check if braking shoe of shoe-type clutch is contaminated by oil
Re-adjust
Check if throttle cable can pull
flexibly in the cable jacket
.
Check if braking shoe
is excessively worn.
Replace
the
whole
set
of
clutch shoe.
Clean
greasy
dirt
Check if contact area between
braking shoe and friction disc
is less than
70
％
.
Clean, lubricate or
replace
Check if contact area
between braking shoe
and friction disc is worn
terribly.
Repair
or
replace
clutch
shoe.
Refill engine
oil.
Check if viscosity of engine oil in the
crankcase is too low or the oil is
badly contaminated
Replace
engine oil.
1. Check if adjusting screw for clutch
push rod is properly adjusted; 2. Check if
pinch bolt for clutch spring is loosing; 3.
Check if braking shoe of clutch is burnt or
excessively worn; 4. Check if elasticity of
clutch spring is enough; 5. Check if the
contact end face between driven hub,
pressure plate and braking shoe is over
worn. 6. Check if splines on clutch driven
and drive hubs are worn into zigzag form.
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Yes
Yes
No
Check if engine oil level in
the crankcase is too low.
