Yamaha YZ450F 2006, Owner'S Service Manual, Page: 438 / 650

4 - 99
ENG
TRANSMISSION, SHIFT CAM AND SHIFT FORK
5. Install:
• Shift fork 1 (L)
1
• Shift fork 2 (C)
2
• Shift fork 3 (R)
3
• Shift cam
4
To main axle and drive axle.
NOTE:
• Apply the molybdenum disulfide oil on the
shift fork grooves.
• Apply engine oil to the shift cam groove,
bearing contact surface and shift fork shaft.
• Mesh the shift fork #1 (L) with the 4th wheel
gear
5
and #3 (R) with the 5th wheel gear
7
on the drive axle.
• Mesh the shift fork #2 (C) with the 3rd pinion
gear
6
on the main axle.
6. Install:
• Transmission assembly
1
To crankcase (left)
2
.
NOTE:
Apply the engine oil on the bearings and guide
bars.
7. Check:
• Shifter operation
• Transmission operation
Unsmooth operation
→
Repair.