Yamaha WR250FM Shift fork, shift cam and segment, Assembly and Installation Transmission

TRANSMISSION, SHIFT CAM AND SHIFT FORK

ENG

EC4H4810

Shift fork, shift cam and segment

1.Inspect:

•Shift fork 1 Wear/damage/scratches → Replace.

2.Inspect:

•Shift cam 1

•Segment 2 Wear/damage → Replace.

3.Check:

•Shift fork movement

Unsmooth operation → Replace shift fork.

NOTE:

For a malfunctioning shift fork, replace not only the shift fork itself but the two gears each adja- cent to the shift fork.

EC4H5000

ASSEMBLY AND INSTALLATION Transmission

1.Install:

•5th pinion gear (27T) 1

•3rd pinion gear (21T) 2

•Collar 3

•4th pinion gear (24T) 4

•2nd pinion gear (16T) 5 To main axle 6.

NOTE:

•Apply the molybdenum disulfide oil on the 4th and 5th pinion gears inner circumference and on the end surface.

•Apply the molybdenum disulfide oil on the 2nd and 3rd pinion gears inner circumfer- ence.

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