Connecting Rod Inspection; Bearing And Oil Seal Installation - Yamaha YZ250(R)/LC Owner's Service Manual

SWINGARM
EC574311
Connecting rod
1. Inspect:
9 Bearing (polylube bearing) 1
9 Collar 2
Free play exists/Unsmooth revolution/Rust ¡
Replace bearing and collar as a set.
2. Inspect:
9 Bearing (polylube bearing) 1
Loss of solid lubrication ¡ Replace.
9 Oil seal 3
Damage ¡ Replace.
NOTE:
Polylube bearings, with solid lubrication, have
been adopted with the intent to make the needle
bearings, used in this model, maintenance free.
With polylube bearings, no grease nipple and
regular lubrication
grease should be applied to all oil seals and col-
lars when removed or installed.
EC575000
ASSEMBLY AND INSTALLATION
EC575202
Bearing and oil seal
1. Install:
9 Bearing 1
9 Oil seal 2
To swingarm.
NOTE:
9 Apply the molybdenum disulfide grease on the
bearing when installing.
9 Install the bearing by pressing it on the side hav-
ing the manufacture's marks or numbers.
9 First install the outer and then the inner bear-
ings to a specified depth from inside.
Installed depth of bearings:
Outer a a : Zero mm (Zero in)
Inner b b : 8.5 mm (0.33 in)
5-54
CHAS
is necessary. However,