Engine Can Be Started But Motorcycle Can Not Be Moved; Shudder Or Misfire When Driving; Insufficient Horsepower Or Poor High Speed Performance - SANYANG INDUSTRY CO. SYM Service Manual

8. V-BELT DRIVING SYSTEM/KICK STARTER ARM/STARTER CLUTCH
MAINTENANCE DESCRIPTION
Precautions in operation
General information
¡ E Driving pulley, clutch, and driven pulley can be serviced on the motorcycle.
¡ E Driving belt and driving pulley surface must be free of grease.
Specification
Item
Driving belt width
ID of sliding pulley bush
OD of roller
ID of clutch outer
Thickness of clutch pad
Free length of drive pulley spring
OD of driven pulley
ID of sliding pulley
ID: Inner Diameter
OD: Outer diameter
Torque value
Sliding pulley nut: 5.0~6.0kgf-m
Clutch outer nut: 5.0~6.0kgf-m
driving pulley nut: 3.5~4.5kgf-m
TROUBLE DIAGNOSIS
Engine can be started but motorcycle
can not be moved
Worn driving Belt
Worn tilt plate
Worn or damaged clutch pad
Broken driven pulley

Shudder or misfire when driving

Broken clutch pad
Worn clutch pad
8-2
Standard value
17.50
20.035~20.085
15.920~16.080
107.00~107.20
4.000
97.20
33.965~33.985
34.000~34.025
Special Service Tools
Clutch spring compressor
Bearing puller (inner type)
Clutch mounting nut wrench
Universal fixture
Insufficient horsepower or poor high
speed performance
Worn driving belt
Insufficient spring capacity of driven
pulley
Worn roller
Driven pulley operation un-smoothly
SYM
Unit: mm
Limit
16.8
20.150
15.570
107.50
2.0
96.5
33.940
34.060