Yamaha WR45OFR service manual Shift fork, shaft cam and transmission, Gears

TRANSMISSION, SHIFT CAM AND SHIFT FORK

ENG

EC4H3000

REMOVAL POINTS

Shift fork, shaft cam and transmission

1.Remove:

●Shift forks

●Shift cam

●Main axle

●Drive axle

NOTE:

●Tap lightly on the transmission drive axle and shift cam with a soft hammer to remove.

●Remove assembly carefully. Note the posi- tion of each part. Pay particular attention to the location and direction of shift forks.

EC4H4000

INSPECTION

EC4H4200

Gears

1.Inspect:

●Matching dog a

●Gear teeth b

●Shift fork groove c Wear/damage → Replace.

2.Inspect:

●O-ring 1

Damage → Replace.

3.Check:

●Gears movement

Unsmooth movement → Repair or replace.

EC4H4600

Bearing

1.Inspect:

●Bearing 1

Rotate inner race with a finger. Rough spot/seizure → Replace.

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