Yamaha YZ450F(S) Owner's Service Manual page 558

REAR SHOCK ABSORBER
EC585000
ASSEMBLY AND INSTALLATION
EC585300
Bearing
1. Install:
Upper bearing 1
G
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.
2. Install:
Stopper ring (upper bearing) 1
G
NOTE:
After installing the stopper ring, push back the
bearing until it contacts the stopper ring.
3. Install:
Lower bearing 1
G
NOTE:
Install the bearing by pressing it on the side
having the manufacture's marks or numbers.
EC585111
Spring (rear shock absorber)
1. Install:
Spring 1
G
Spring guide (upper) 2
G
Spring guide (lower) 3
G
5 - 62
CHAS
Installed depth of the bearing a:
4 mm (0.16 in)
New