Yamaha WR250FM service manual Swingarm, Relay arm

SWINGARM CHAS

EC573000

REMOVAL POINTS

EC573200

Bearing

1.Remove:

• Bearing 1

NOTE:

Remove the bearing by pressing its outer race.

INSPECTION

Wash the bearings, bushings, collars, and cov- ers in a solvent.

Swingarm

1.Inspect:

•Bearing 1

•Bushing 2

Free play exists/unsmooth revolution/rust → Replace bearing and bushing as a set.

2.Inspect:

•Oil seal 3

Damage → Replace.

EC574210

Relay arm

1.Inspect:

•Bearing (polylube bearing) 1

•Collar 2

Free play exists/unsmooth revolution/rust → Replace bearing and collar as a set.

2.Inspect:

•Bearing (polylube bearing) 1

Loss of solid lubrication → Replace.

•Oil seal 3

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.

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