Yamaha YZ450F(S) Owner's Service Manual page 540

SWINGARM
EC574310
Connecting rod
1. Inspect:
Bearing (polylube bearing) 1
G
Collar 2
G
Free play exists/unsmooth revolution/rust
→ Replace bearing and collar as a set.
2. Inspect:
Bearing (polylube bearing) 1
G
Loss of solid lubrication → Replace.
Oil seal 3
G
Damage → Replace.
NOTE:
Polylube bearings, with solid lubrication, have
been adopted with the intent to make the nee-
dle bearings, used in this model, maintenance
free. With polylube bearings, no grease nipple
and regular lubrication is necessary. However,
grease should be applied to all oil seals and
collars when removed or installed.
EC575000
ASSEMBLY AND INSTALLATION
EC575201
Bearing and oil seal
1. Install:
Bearing 1
G
Oil seal 2
G
To swingarm.
NOTE:
Apply the molybdenum disulfide grease on
G
the bearing when installing.
Install the bearing by pressing it on the side
G
having the manufacture's marks or numbers.
First install the outer and then the inner bear-
G
ings to a specified depth from inside.
Installed depth of bearings:
Outer a: Zero mm (Zero in)
Inner b: 8.5 mm (0.33 in)
5 - 53
CHAS