Yamaha YZ450F, Owner'S Service Manual

Page: 540 / 650

5 - 51
CHAS
STEERING
Bearing and bearing race
1. Wash the bearings and bearing races with
a solvent.
2. Inspect:
• Bearing
1
• Bearing race
Pitting/damage
→
Replace bearings and
bearing races as a set.
Install the bearing in the bearing races.
Spin the bearings by hand. If the bearings
hang up or are not smooth in their opera-
tion in the bearing races, replace bear-
ings and bearing races as a set.
EC565000
ASSEMBLY AND INSTALLATION
Under bracket
1. Install:
• Bearing (lower)
1
NOTE:
Apply the lithium soap base grease on the dust
seal lip and bearing inner circumference.
2. Install:
• Bearing race
• Bearing (upper)
1
• Bearing race cover
2
NOTE:
Apply the lithium soap base grease on the
bearing and bearing race cover lip.
3. Install:
• Under bracket
1
NOTE:
Apply the lithium soap base grease on the
bearing, the portion
a
and thread of the steer-
ing shaft.