9. V-Belt Drive System
9-2
Precautions in Operation
General Information
z Drive face, clutch outer, and driven pulley can be serviced on the motorcycle.
z Driving belt and driving pulley must be free of grease.
Item Standard value (mm) Limit (mm)
Driving belt width 19.000 17.500
ID of drive face boss 27.000~27.021 27.060
OD of drive face 26.970~26.990 26.940
OD of roller 19.950~20.100 19.500
ID of clutch outer 130.000~130.200 130.500
Thickness of clutch weight 4.000~4.100 2.000
Free length of driven pulley spring 88.300 83.200
OD of driven pulley 33.965~33.985 33.940
ID of drive face 34.000~34.025 34.060
Torque value
‧ Driven face nut: 5.0~6.0 kgf-m
‧ Clutch outer nut: 5.0~6.0 kgf-m
Special Service Tools
‧ Clutch spring compressor
‧ Inner bearing puller
‧ Bearing driver
‧ Clutch nut wrench 39 x 41 mm
‧ Universal holder
Troubleshooting
Engine can be started but motorcycle
can not be moved
1. Worn driving 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 driving belt
2. Insufficient spring force of driven pulley
3. Worn roller
4. Driven pulley operation un-smoothly
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