2003 YAMAHA WR 250F four wheel drive

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Page 274 of 860

YAMAHA WR 250F 2003  Owners Manual 3 - 83
INSP
ADJ
3. Adjust:
Drive chain slack
Drive chain slack adjustment 
steps:
Loosen the axle nut 
1 and
locknuts 
2.
Adjust the drive chain slack by
turning the adjusters 
3.
To tighten → Tu

Page 276 of 860

YAMAHA WR 250F 2003  Owners Manual 3 - 85
INSP
ADJ
EC36D001FRONT FORK OIL SEAL AND 
DUST SEAL CLEANING
1. Remove:
Protector
Dust seal 
1 
NOTE:Use a thin screw driver, and be care-
ful not to damage the inner fork tube
and dust seal.

Page 574 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 249
ENGTRANSMISSION, SHIFT CAM AND SHIFT FORK
2. Install:
2nd wheel gear (28T) 
1 
4th wheel gear (25T) 
2 
3rd wheel gear (28T) 
3 
5th wheel gear (22T) 
4 
1st wheel gear (31T) 
5 
O-ring

Page 576 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 251
ENGTRANSMISSION, 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 d