Yamaha WR450F(T) Owner's Service Manual page 618

SWINGARM
EC573000
REMOVAL POINTS
Cap
1. Remove:
• Cap (left) 1
NOTE:
Remove with a slotted-head screwdriver
inserted under the mark a on the cap (left).
EC573200
Bearing
1. Remove:
• Bearing 1
NOTE:
Install the bearing by pressing its outer race.
EC574010
INSPECTION
Wash the bearings, bushes, collars, and cov-
ers in a solvent.
EC574111
Swingarm
1. Inspect:
• Bearing 1
• Bush 2
Free play exists/unsmooth revolution/rust
→ Replace bearing and bush as a set.
2. Inspect:
• Oil seal 3
Damage → Replace.
Relay arm
1. Inspect:
• Bearing 1
• Collar 2
Free play exists/unsmooth revolution/rust
→ Replace bearing and collar as a set.
2. Inspect:
• Oil seal 3
Damage → Replace.
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CHAS