ZONGSHEN ZS125-86 Service Manual page 33

Left bushing
Oil seal
Rear drive sprocket
Rear wheel bearing
[7] Loosen the lock nuts on the rear wheel axle and
remove the rear wheel assembly. Remove the rear
wheel left bushing and check it for any abrasion.
[8] Remove the oil seal of rear drive sprocket and
check it for any abrasion.
[9] Remove the rear drive sprocket and check it for
any abrasion.
Caution
If the major and minor drive sprockets are
seriously abraded, it is necessary to replace
a complete set of drive sprockets and the
transmission chain.
[8] Remove the neck bush of rear drive sprocket
and check the bearing of drive sprocket for any
abrasion. Replace the bearing in time if seriously
abraded; other wise it will affect the normal
operation of the transmission system.
Warning
Replace the rear drive sprocket bearing if
abraded, otherwise it will cause the rear wheel to
swing drastically o to be stuck.
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