Maintenance Description; Trouble Diagnosis - TGB BLADE 425 Service Manual

8. V-BELT DRIVING SYSTEM

Maintenance Description

Precautions in Operation
General Information
● Drive face, clutch outer, and driven pulley can be serviced on the motorcycle.
● Drive belt and drive pulley must be free of grease.
Specification
Item
Driving belt width
OD of movable drive face boss
ID of movable drive face
OD of weight roller
ID of clutch outer
Free length of driven pulley spring
OD of driven pulley boss
ID of driven face
Weight of weight roller
Torque value
● Drive face nut: 10~12kgf-m
● Clutch outer nut: 10~12.0kgf-m
● Drive plate nut: 10~12kgf-m

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
8-2
To this chapter contents
Standard value
28.500 mm
26.946~26.980 mm
27.000~27.040 mm
25.800~26.000 mm
140.000~140.200 mm
44.965~44.985 mm
45.000~45.035 mm
13.300~13.700 g
Special Service Tools
Clutch spring compressor:
Inner bearing puller:
Clutch nut wrench 27 x 15 mm:
Universal holder:
Bearing driver:
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
230.000 mm
TGB-
TGB-
TGB-
Limit
27.000 mm
26.926 mm
27.060 mm
25.000 mm
140.500 mm
225.000 mm
40.935 mm
45.600 mm
12.800 g
TGB-