Installing The Front Wheel; Rear Wheel; Removal; Rear Wheel Inspection - Yamaha YTZ250S 1986 Service Manual

1. Clean the outside of the wheel hub.
2. Drive the bearing out by pushing the
spacer aside and tapping around the
perimeter of the bearing inner race with a
soft metal drift punch and hammer. The
spacer "floats" between the bearings.
Both bearings can be removed in this
manner.
WARNING:
Eye protection is recommended when us-
ing striking tools.
3. To install the wheel bearing, reverse the
above sequence. Use a socket that mat-
ches the outside diameter of the race of
the bearing to drive in the bearing.
Do not strike the center race or balls of
the bearing. Contact should be made only
with the outer race.
Installing the Front Wheel
When installing the front wheel, reverse the
removal procedure. Note the following points.
1. Lightly grease the lips of the front wheel
oil seals. Use lightweight lithium soap
base grease.
2. Tighten the front axle and pinch bolt.
TIGHTENING TORQUE:
Front axle:
58 Nm (5.8 m·kg, 42 ft·lb)
Pinch bolt:
20 Nm (2.0 m·kg, 14 ft·lb)
4-2
REAR WHEEL
Removal
1. Block the front tire and jack up the rear
of the vehicle. Apply the rear brake.
2. Remove the cotter pin and axle nut.
1. Cotter pin
2. Axle nut
3. Remove the rear wheel assembly.
Rear Wheel Inspection
See "Front Wheel Inspection" on page 4-1.
Installing the Rear Wheel
When installing the rear wheel, reverse the
removal procedure. Note the following points.
1. Tighten axle nut.
Axle nut torque:
100 Nm (10 m·kg, 72 ft-lb)
2. Insert a new cotter pin into the rear
wheel axle nut and bend the end of the
cotter pin as shown in the illustration. (If
the nut notch and the cotter pin hole do
not match, tighten the nut slightly to
align them.)
WARNING:
Always use a new cotter pin on the axle
nut.
1. Cotter pin