Yamaha WR250F(S) Owner's Service Manual page 554

CRANKCASE BEARING
Extent of removal:
Extent of removal
Preparation for removal
1
1 Crankcase bearing removal
Order Part name
CRANKCASE BEARING REMOVAL
Transmission
Shift cam and shift fork
1 Oil seal
2 Bearing
CRANKCASE AND CRANKSHAFT
Q'ty
2
10
4 - 229
ENG
Remarks
Refer to "TRANSMISSION, SHIFT CAM AND
SHIFT FORK" section.
Refer to "REMOVAL POINTS".