2007 YAMAHA WR 250F four wheel drive

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Page 308 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 97
INSP
ADJ
EC36C000FRONT FORK INSPECTION
1. Inspect:
Front fork smooth action
Operate the front brake and
stroke the front fork.
Unsmooth action/oil leakage
→ Repair or replace.
EC36D001FRONT

Page 380 of 912

YAMAHA WR 250F 2007  Owners Manual 4 - 21
TUNSETTING
EC720000
CHASSIS
Selection of the secondary 
reduction ratio (Sprocket)
<Requirement for selection of sec-
ondary gear reduction ratio>
It is generally said that the second-
ary gea

Page 660 of 912

YAMAHA WR 250F 2007  Owners Manual 5 - 253
ENGTRANSMISSION, SHIFT CAM AND SHIFT FORK
2. Install:
2nd wheel gear (28T) 
1 
4th wheel gear (23T) 
2 
3rd wheel gear (23T) 
3 
5th wheel gear (17T) 
4 
1st wheel gear (31T) 
5 
O-ring

Page 662 of 912

YAMAHA WR 250F 2007  Owners Manual 5 - 255
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