Sym ALA125CC Manual page 166

8. V-BELT DRIVING SYSTEM/KICK STARTER ARM
Clutch lining
Measure each clutch lining thickness.
Replace it if exceeds service limit.
Service limit: 2.0mm
Driven pulley spring
Measure the length of driven pulley spring.
Replace it if exceeds service limit.
Service limit: 163.7mm
Driven pulley
Check following items;
• If both surfaces are damage or wear.
• If guide pin groove is damage or wear.
Replace damaged or worn components.
Measure the outer diameter of driven surface
and the inner diameter of driven pulley.
Replace it if exceeds service limit.
Service limit: Outer diameter 33.94mm
Inner diameter 34.06mm
Driven Pulley Bearing Inspection
Check if the inner bearing oil seal is damage.
Replace it if necessary.
Check if needle bearing is damage or too big
clearance. Replace it if necessary.
Rotate the inside of inner bearing with fingers
to check if the bearing rotation is in smooth
and silent.
8-10
Clutch lining
Free length
Driven pulley
Sliding disc
Outer ball bearing
SYM
Clutch
Guide pin
groove
Needle bearing