Yamaha 2003 YFZ450S, Service Manual

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CHAS
FRONT ARMS AND FRONT SHOCK ABSORBER
ASSEMBLIES
EBS00472
CHECKING THE BALL JOINTS
The following procedure applies to both of the
front arm ball joints.
1. Check:
• ball joint (upper front arm)
Damage/pitting
→
Replace the upper front
arm.
Free play
→
Replace the front arm.
Turns roughly
→
Replace the upper front
arm.
2. Check:
• ball joint (lower front arm)
Damage/pitting
→
Replace the ball joint.
Free play
→
Replace the ball joint.
Turns roughly
→
Replace the ball joint.
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a. Clean the outside of the lower front arm.
b. Remove the circlip
1
, boot retaining ring
2
and rubber boot
3
.
Use the ball joint remover and installer set.
c. Install the body
4
, long bolt
5
, base
6
and
attachment
7
onto ball joint.
d. Hold the body
4
in place while turning in
the long bolt
5
to remove the ball joint
0
from the lower front arm
A
.
e. Remove the ball joint remover/installer.
Ball joint remover/installer set
P/N. YM-01474, 90890-01474
Ball joint remover/installer attach-
ment set
P/N. YM-01480, 90890-01480
4
Body
YM-01474
90890-01474
5
Long bolt
6
Base
YM-01480
90890-01480
7
Remover
attachment
8
Installer spacer
9
Installer washer