Yingang YG125-25, Maintenance Manual

Page: 118 / 144

YG125-25 Maintenance Manual Rear wheel and rear suspension device
Rear wheel
To remove the rear wheel
1) Stand the motorcycle with a jack to lift the rear wheel
above the ground.
2) Remove the chain set.
3) Unscrew the rear wheel nuts
、
the brake pull rod
、
Brake limit lever and remove the rear wheel
spindle.
4) Dismantle rear wheel axle nut to check it whether is
loose and damaged
5) Remove the chain link and remove the drive chain.
6) Dismantle clip of chain and take off chain
7) Take out the rear wheel assembly and the spindle
bush.
Installation of rear wheel
Installation is in the reverse order of removal.
While mounting the rear wheel, make sure the spindle
bushes on both sides are aligned and the brake caliper
clamps the rear wheel brake disc. While installing,
properly adjust the chain adjuster to ensure that the chain
slack is between 20mm and 30mm and that the left and
right scale lines of the chain adjuster are consistent, and
then fasten the rear wheel spindle nut to the required
tightening torque of 60-90N.m
Warning
The rear wheel spindle must be firmly screwed
up to the required torque of 60-70N.m
Rear wheel spindle inspection
Place the rear wheel spindle on the V-holder, and
measure the deflection of the wheel spindle with a dial
gauge; if the reading is no less than 0.2mm, replace the
rear wheel spindle
.
Rear wheel bearing inspection
Place the rear wheel on the calibration table, inspect the
rim’s deflection, and then manually rotate the wheel and
measure its deflection value with a dial gauge; if the
reading is no less than 2mm, replace the wheel bearing.
Rear sprocket inspection
Check the tooth form of the rear sprocket, and replace it in
case of serious damage. While replacing, directly remove
the nut; and apply the thread retaining adhesive
LOCTITE243 on the rear sprocket retaining screw, with
the tightening torque being 20-30N.m.
Remove the lock clip in this direction
Rotate it
Dial indicator
Remove the chain set
Bolt
122