The disassembly steps of the shift mechanism are as
follows:
1. Remove the shift arm parts;
2. Remove the fastening screw GB/ T70.1Mx35 of the
five-star plate and remove the five-star plate;
3. Remove the positioning plate assembly fastening
screws, and remove the positioning plate spring and the
positioning plate assembly.
Inspection of right crankcase cover
Check the right crankcase cover as follows:
1. Check whether the oil seal of starting shaft and clutch
push rod on the right crankcase cover is damaged. If the
oil seal is found to be broken, a new oil seal should be
replaced;
Attention when replacing oil seal:
(1) Confirm whether the state of oil seal is correct,
starting shaft oil seal 13.7×24×5, clutch push rod oil seal
12×21×4;
(2) When assembling, the marked face should be
outwards
2. Check whether the clutch adjusting nut and the clutch
adjusting bolt work properly
Yes, the return spring is in good condition.
3. Whether the right crankcase cover is broken and
whether the oil channel is smooth. Replace the right
crankcase cover if damaged
Clutch inspection
Clutch inspection steps are as follows:
1. Measure free length of clutch spring
Maintenance limit value: 20.5mm
Limit value of damping spring maintenance: 21mm
2. Measure the thickness of each clutch friction plate. If
the clutch friction plate shows scratches or faded marks,
it should be replaced.
Maintenance limit value: 2.5mm
3. Check whether the surface of the clutch driven plate
is distorted
Maintenance limit value: 0.14mm
4. Check the gap between the clutch cover and the
friction plate
Maintenance limit value: 0.6mm
5. Check whether the groove on the drum type of the
outer cover is notched or scarred due to the friction of
the clutch disc. If it is serious, the outer cover needs to
be replaced.
Note:
If the clutch friction plate is burned, the friction
plate should be replaced, and the clutch should be
replaced seriously
Inspection of driving and driven tooth
Check whether the driving and driven driving teeth are worn and damaged. If the wear and damage are serious, it is
necessary to replace the master and slave driving teeth.