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Diagnosis on dense bluish white smoke from the exhaust muffler of the two-stroke engine
Diagnosis on difficulty in transmission shift
The exhaust muffler of the two-stroke engine emits dense bluish white smoke.
Check whether the fuel level in the crankcase exceeds the upper limit.
Excessive fuel filling into the crankcase.
Drain out the excessive part and make
sure the fuel level is not over the upper
limit.
1. Check whether the cylinder, the piston and
the piston ring are excessively abraded.
2. Check whether the piston ring has enough
elasticity or whether it is seized in the
groove.
3. Check whether piston ring joint is staggered.
Start up the engine and remove the dipstick
when it works at high speed. Check whether
there is smoke from the fuel filler.
Difficulty in Transmission Shift
Start the engine and check whether the idle speed is too high.
Re-adjustment
Check whether it is coordinated when shifting
Check whether the clutch is completely released Improve operation
Check whether the gearshift shaft is deformed or the
gearshift arm is deformed or excessively abrasive
1. Check whether the free stroke of the
clutch grip is between 10mm~20mm.
2. Check the balanced elasticity of
clutch spring.
3. Check whether the tooth-shaped
groove of the drive hub and the driven
hub is abraded to be jagged.
4. Check whether the driven disc of the
clutch is bent or deformed.
5. Check whether components of the
clutch lever are excessively abrasive.
Replace
1. Check whether the groove of the
gearshift cam is excessively
abrasive or damaged.
2. Check whether the fork hole is
excessively abrasive.
3. Check whether the fork is
deformed.
4. Check whether the fork shaft is
deformed or excessively abrasive.
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