4-73
TRANSMISSION, SHIFT CAM AND SHIFT FORK
ENG
EC4H4600
Bearing
1. Inspect:
9
Bearing
1
Rotate inner race with a finger.
Rough spot/Seizure
→
Replace.
2. Inspect:
9
O-ring
1
Damage
→
Replace.
3. Check:
9
Gears movement
Unsmooth movement
→
Repair or replace.
EC4H4000
INSPECTION
EC4H4230
Gears
1. Inspect:
9
Matching dog
a
9
Gear teeth
b
9
Shift fork groove
c
Wear/Damage
→
Replace.
EC4H3000
REMOVAL POINTS
EC4H3230
Transmission
1. Remove:
9
Main axle
1
9
Drive axle
2
9
Shift cam
9
Shift fork 3
9
Shift fork 2
9
Shift fork 1
NOTE:
9
Remove assembly carefully. Note the position
of each part. Pay particular attention to the
location and direction of shift forks.
9
Remove the main axle, drive axle, shift cam
and shift fork all together by tapping lightly on
the transmission drive axle with a soft hammer.
1P8-9-32-4c 5/1/06 10:47 AM Page 48
Summary of Contents for YZ250(W)/W1
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Page 594: ...TUN MEMO...