Sym Orbit 125 Service Manual page 85

SYM
MAINTENANCE DESCRIPTION ........8-1
TROUBLE DIAGNOSIS......................8-1
LEFT CRANKCASE COVER ..............8-2
KICK STARTER ARM.........................8-2
MAINTENANCE DESCRIPTION
PRECAUTIONS IN OPERATION
GENERAL INFORMATION
• Driving pulley, clutch, and driven pulley can be serviced on the motorcycle.
• Driving belt and driving pulley surface must be free of grease.
Specification
Item
Driving belt width
ID of sliding pulley bushing
OD of sliding pulley hub
OD of roller
ID of clutch outer
Thickness of clutch lining
Free length of driving pulley
spring
OD of driving 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: 5.0~6.0kgf-m
TROUBLE DIAGNOSIS
Engine can be started but motorcycle
can not be moved
1. Worn driving Belt
2. Worn tilt plate
3. Worn or damaged clutch lining
4. Broken driven pulley
Shudder or misfire when driving
1. Broken clutch lining
2. Worn clutch lining
8. V-BELT DRIVING SYSTEM/KICK STARTER ARM
DRIVING BELT................................... 8-3
SLIDING PULLEY .............................. 8-5
CLUTCH/DRIVEN PULLEY............... 8-8
Standard value
17.50
20.035~20.085
20.01~20.025
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
1. Worn driving belt
2. Insufficient spring capacity of driven
pulley
3. Worn roller
4. Driven pulley operation un-smoothly
Unit: mm
Limit
-
-
-
-
-
-
-
33.940
34.060
8-1