Sym Orbit 125 Service Manual page 87

SYM
DRIVING BELT
Removal
Remove left crankcase cover.
Hold the sliding pulley with a universal fixture,
and then remove the nut and sliding pulley.
Hold driving pulley with universal fixture, and
remove nut and clutch outer.
Caution
Using special service tools for tightening or
loosening the nut. Fixed rear wheel or rear
brake only will damage reduction gear
system.
Push the driving belt into belt groove as
diagram shown so that the belt can be
loosened, and then remove.
Driving belt and clutch at same time.
Inspection
Check the driving belt for crack or wear.
Replace it if necessary.
Measure the width of driving belt as diagram
shown. Replace the driving belt if it exceed
maintenance limited specification.
Service Limit: 17.50mm
Caution
Using the genuine parts for replacement.
The surfaces of driving belt or pulley must
be free of grease.
Clean up all grease or dirt before
installation.
8. V-BELT DRIVING SYSTEM/KICK STARTER ARM
sliding pulley
driving pulley
Driving belt
Tooth
Universal fixer
Nut
Universal fixer
Width
8-3