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12 M14×1 hexagon flange nut (grade
10/environmental protection color
zinc)
1 26 φ 10×14 hollow positioning pin 2
13 φ 21.2×φ1.8 fluorine rubber O-ring 2 27 ZT1P77MP left crankcase
cover A
1
14 φ 14.5×φ25×16 driven wheel bushing 1
2. Maintenance information
General information
1. This chapter introduces the repair and maintenance of driving wheel and driven wheel.
2. The maintenance of the driving wheel and the driven wheel can be motorcycleried out on the whole vehicle without
disassembling the engine separately.
3. During maintenance, the driving wheel, driven wheel, and V-shaped transmission belt must not touch engine oil or
grease to prevent the V-shaped transmission belt from slipping.
Torque value
Serial
Name Quantity Torque ( N·m) Remark
1 M14× 1 hexagonal flange nut (grade
10/environmental protection color zinc)
1
75 ± 7N
·m
-
2 M18×1 hexagon flange nut (grade
10/environmental protection color zinc)
1
103 ± 10 N
·m
-
3 M6×30 hex flange bolts 12
12 ± 1.5 N
·m
-
4 Non-standard bolt M6×16 (environmental
protection color)
1
10 ± 1 N
·m
-
tool
1. Torque wrench;
2. 19# and 24# sleeves (it is recommended to use extended sleeves);
3. Special fixed fixture for driving and driven wheels;
4. Elastic clip;
5. T-shaped sleeve-8#;
3. Common failure phenomenon/troubleshooting
1. The engine can be started, but the rear wheel does not turn when the throttle is added.
·The V-shaped transmission belt is severely worn or broken.
· Clutch shoes are worn or damaged.
·The large spring of the driven wheel is damaged.
·The splines matching the clutch housing and the drive shaft are damaged.
·The gear in the gear chamber is damaged.
2. The engine stalls or lacks power.
·The V-shaped transmission belt is slipping.
·The large spring of the driven wheel is damaged.
3. Insufficient high-speed power.
·The V-belt is worn or slipping.
·The clutch jacket and the clutch shoes are slipping.
·The large spring of the driven wheel fails.
· Centrifugal roller wear.
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