Yamaha WR400F(M) Owner's Service Manual page 568

REAR SHOCK ABSORBER
EC583000
REMOVAL POINTS
EC583300
Bearing
1. Remove:
Stopper ring 1
NOTE:
Press in the bearing while pressing its outer
race and remove the stopper ring.
2. Remove:
Bearing 1
NOTE:
Remove the bearing by pressing its outer race.
EC584000
INSPECTION
EC584110
Rear shock absorber
1. Inspect:
Damper rod 1
Bends/damage
assembly.
Shock absorber 2
Oil leaks
bly.
Gas leaks
bly.
Spring 3
Damage
Fatigue
Move spring up and down.
Spring guide 4
Wear/damage
Bearing 5
Free play exists/unsmooth revolution/
rust
EC585000
ASSEMBLY AND INSTALLATION
EC585300
Bearing
1. Install:
Bearing 1
NOTE:
Install the bearing parallel until the stopper ring
groove appears by pressing its outer race.
CAUTION:
Do not apply the grease on the bearing
outer race because it will wear the rear
shock absorber surface on which the bear-
ing is press fitted.
5 - 61
CHAS
Replace absorber
Replace absorber assem-
Replace absorber assem-
Replace spring.
Replace spring.
Replace spring guide.
Replace.