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Symptom: Clutch slips
Manually controlled wet multi-plate clutch slips
Check if clearance of clutch handle
bar is within 10mm~20mm.
No
Re-adjust
No
Clean, lubricate or
replace
Yes
Refill
engine
oil.
Yes
Replace
engine oil.
Diagnosis procedures
Yes
Check if throttle cable can pull
flexibly in the cable jacket.
Yes
Check if engine oil level in
the crankcase is too low.
No
Check if viscosity of engine oil in the
crankcase is too low or the oil is
badly contaminated
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.
Clutch slips
Automatic centrifugal dry type shoe clutch slips
Check if braking shoe of shoe-type clutch is contaminated by oil
Check if braking shoe
is excessively worn.
No
Check if contact area between
braking shoe and friction disc
70％.
is less than
No
Check if contact area
between braking shoe
and friction disc is worn
No
terribly.
No
Yes
Clean
dirt
Yes
Replace
whole
clutch shoe.
Yes
Repair
replace
shoe.
greasy
the
set
of
or
clutch
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