Checking The Front Shock Absorber Assemblies; Checking The Front Arm Ball Joints - Yamaha YFM70RY Service Manual

FRONT ARMS AND FRONT SHOCK ABSORBER ASSEMBLIES
EAS29760
CHECKING THE FRONT SHOCK ABSORBER
ASSEMBLIES
The following procedure applies to both of the
front shock absorber assemblies.
1. Check:
• Front shock absorber assembly
Oil leaks → Replace the front shock absorber
assembly.
• Front shock absorber rod
Bends/damage → Replace the front shock
absorber assembly.
• Spring
Move the spring up and down.
Fatigue → Replace the front shock absorber
assembly.
• Gas cylinder
Damage/gas leaks → Replace the front
shock absorber assembly.
EAS29770

CHECKING THE FRONT ARM BALL JOINTS

The following procedure applies to each of the
front arm ball joints.
1. Check:
• Ball joint (front upper arm)
Damage/pitting → Replace the front upper
arm.
Free play → Replace the front upper arm.
Rough movement → Replace the front upper
arm.
2. Check:
• Ball joint (front lower arm)
Damage/pitting → Replace the ball joint.
Free play → Replace the ball joint.
Rough movement → Replace the ball joint.
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a. Clean the surface of the front lower arm.
b. Remove the circlip "1", boot retaining ring "2"
and rubber boot "3".
Use the ball joint remover and installer set.
Ball joint remover
90890-01474
YM-01474
Ball joint remover attachment set
90890-01480
Ball joint adapter set
YM-01480
4. Body
5. Long bolt
6. Base
7. Remover attachment
8. Installer spacer
9. Installer washer
c. Install the body "4", long bolt "5", base "6" and
attachment "7" onto ball joint.
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