8. V-BELT DRIVING SYSTEM
8-2
Maintenance Description
Precautions in Operation
General Information
Drive face, clutch outer, and driven pulley can be serviced on the vehicle.
Drive belt and drive pulley must be free of any grease.
Specification
Item Standard value Limit
Driving belt width 30.700 mm 29.200 mm
OD of movable drive face boss 35.970~35.990 mm 35.950 mm
ID of movable drive face 36.010~36.035 mm 36.055 mm
OD of weight roller 29.992~30.008 mm 29.950 mm
ID of clutch outer 140.000~140.200 mm 140.500 mm
Thickness of clutch weight 6.000 mm 3.000 mm
Free length of driven pulley spring 124.5 mm 119.500 mm
OD of driven pulley boss 40.965~40.985 mm 40.945 mm
ID of driven face 41.000~41.050 mm 41.070 mm
Weight of weight roller 19.700~20.300 g 19.200 g
Torque value
Drive face nut: 8.5~10.5kgf-m
Clutch outer nut: 5.0~6.0kgf-m
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
Trouble Diagnosis
Engine can be started but vehicle can not
move
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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