Transmission, Shift Cam And Shift Fork - Yamaha WR450F Manuel D'atelier Du Proprietaire

TRANSMISSION, SHIFT CAM AND SHIFT FORK

EC4H3000
REMOVAL POINTS
Shift fork, shaft cam and transmission
1. Remove:
Shift forks
G
Shift cam
G
Main axle
G
Drive axle
G
NOTE:
Tap lightly on the transmission drive axle and
G
shift cam with a soft hammer to remove.
Remove assembly carefully. Note the posi-
G
tion of each part. Pay particular attention to
the location and direction of shift forks.
EC4H4000
INSPECTION
EC4H4200
Gears
1. Inspect:
Matching dog a
G
Gear teeth b
G
Shift fork groove c
G
Wear/damage → Replace.
2. Inspect:
O-ring 1
G
Damage → Replace.
3. Check:
Gears movement
G
Unsmooth movement → Repair or
replace.
EC4H4600
Bearing
1. Inspect:
Bearing 1
G
Rotate inner race with a finger.
Rough spot/seizure → Replace.
4 - 99
ENG