7. “V” TYPE BELT DRIVE SYSTEM/KICK-STARTER
7-2
Maintenance Information
Precautions in Operation
The surfaces of drive belt and driven pulley must be free of grease.
Specification
Item Standard value(mm) Limit(mm)
Driving belt width
18.0 16.5
ID of movable driving pulley
20.035~20.085 20.120
OD of movable driving pulley boss
20.010~20.025 19.98
OD of weight roller
15.92~16.08 15.40
ID of clutch outer
107.0~107.2 107.5
Thickness of clutch weight
4.0~4.1 2.0
Free length of driven pulley spring
98.1 92.7
OD of driven pulley
33.965~33.985 33.94
ID of movable driven pulley
34.000~34.025 34.06
ID: Inner Diameter
OD: Outer diameter
Torque Values:
Movable drive face: 3.8kgf-m
Driven pulley: 5.5kgf-m
Clutch outer: 3.8kgf-m
Special Service Tools
Clutch spring compressor
Bearing driver
Clutch nut wrench 39x41 mm
Bearing driver accessory 39x41 mm
Universal holder
Driver
Trouble Shooting
Engine can be started but motorcycle can
not be moved
1. Worn drive Belt
2. Worn ramp plate
3. Worn or damaged clutch weight
4. Broken driven pulley spring
Shudder or misfire when drive
1. Broken clutch weight
2. Worn clutch weight
Insufficient horsepower or poor high
speed performance
1. Worn drive belt
2. Insufficient spring capacity of driven pulley
3. Worn weight roller
4. Driven pulley operation un-smoothly
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