Replacing Wheel Bearing; Installing Front Wheel; Rear Wheel; Removal - Yamaha QT 50F Service Manual

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G. Replacing Wheel Bearings
If the bearings allow play in the wheel hub or
if wheel does not turn smoothly, replace the
bearings as follows:
1. First clean the outside of the wheel hub.
2. Drive the bearing out by pushing the
spacer aside (the spacer "floats" be-
tween the bearings) and tapping around
the perimeter of the bearing inner race
with'a soft metal drift pin and hammer.
Both bearings can be removed in this
manner.
3. To install the wheel bearing, reverse the
above sequence. Be sure to grease the
bearing before installation. Use a socket
that matches the outside race of the
bearing as a tool to drive in the bearing.
- C A U T I O N :
Do not strike the center race or balls of
the bearing. Contact should be made
only with the outer race.
H. Installing Front Wheel
When installing front wheel, reverse the re-
moval procedure taking note of the following
points:
1. Lightly grease lips of front wheel oil
seals and gear teeth of speedometer
drive and driven gears. Use light-weight
lithium soap base grease.
2. Check for proper engagement of the
boss on the outer fork tube with the
locating slot on brake shoe plate.
3. Always secure the front wheel axle as
follows:
a. Torque the front axle nut.
Axle nut torque: 4.0 m-kg (30 ft-lb)
b. Install a new cotter pin.
5-2. REAR WHEEL
A. Removal
1. Remove rear fender.
2. Remove rear brake wire.
3. Remove rear wheel nut.
4. Remove rear wheel from shaft drive
housing.
B. Rear Wheel Inspection
Check wheel run-out without removing the
wheel from the frame and by running the
engine.
Rim run-out limits:
Vertical — 0.7 mm (0.028 in)
Lateral — 1.3 mm (0.051 in)
C. Brake Shoe Wear Inspection
See Front Brake Shoe Wear Inspection
procedure.
D. Rear Drum Inspection
See Front Drum Inspection procedures.
E. Brake Shoe Plate Inspection
See Front Brake Shoe Plate Inspection 1)
procedure.
F. Installing Rear Wheel
Tighten the rear wheel shaft nut.
Rear wheel shaft nut torque:
6.0 m-kg (43 ft-lb)
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