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8-2 Maintenance Description
Precautions in Operation
General Information
y Drive face, clutch outer, and driven pulley can be serviced on the motorcycle.
y Drive belt and drive pulley must be free of grease.
Specification of V-BELT SYSTEM
Item Standard value (mm) Limit (mm)
Driving belt width 24.000 22.500
OD of movable drive face boss 29.946~29.980 29.926
ID of movable drive face 30.000~30.040 30.060
OD of weight roller 19.500~20.000 19.000
ID of clutch outer 144.850~145.150 145.450
Thickness of clutch weight 6.000 3.000
Free length of driven pulley spring 102.400 97.400
OD of driven pulley boss 40.950~40.990 40.930
ID of driven face 41.000~41.050 41.070
Weight of weight roller 17.700~18.300 g 17.200 g
Torque value
y Drive face nut: 8.5~10.5kgf-m
y Clutch outer nut: 5.0~6.0kgf-m
y Drive plate nut: 5.0~6.0kgf-m
Special Service Tools
Clutch spring compressor: SYM-2301000
Inner bearing puller:
SYM-6204002
Clutch nut wrench 39 x 41 mm:
SYM-9020200
Universal holder:
SYM-2210100
Bearing driver:
SYM-9100100
8-3 Trouble Diagnosis
Engine can be started but motorcycle can
not be moved
1. Worn drive Belt
2. Worn drive face
3. Worn or damaged clutch weight
4. Broken driven pulley
Shudder or misfire when driving
1. Broken clutch weight
2. Worn clutch weight
Insufficient horsepower or poor high
speed performance
1. Worn drive belt
2. Insufficient spring force of driven pulley
3. Worn roller
4. Driven pulley operation un-smoothly
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