2007 YAMAHA WR 250F AUX

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Page 272 of 912

YAMAHA WR 250F 2007  Notices Demploi (in French) 3 - 61
INSP
ADJ
VALVE CLEARANCE INSPECTION 
AND ADJUSTMENT
NOTE:This section is intended for those
who have basic knowledge and skill
concerning the servicing of Yamaha
motorcycles (e.g., Yamaha deale

Page 274 of 912

YAMAHA WR 250F 2007  Notices Demploi (in French) 3 - 63
INSP
ADJ
5. Check:
Valve clearance
Out of specification 
→ Adjust. 
Valve clearance (cold):
Intake valve:
0.10 ~ 0.15 mm 
(0.0039 ~ 0.0059 in)
Exhaust valve:
0.17 ~ 0.22 mm 
(0.0067 ~ 0.0087

Page 276 of 912

YAMAHA WR 250F 2007  Notices Demploi (in French) 3 - 65
INSP
ADJ
6. Adjust:
Valve clearance
Adjustment steps:
Remove the camshaft (intake
and exhaust).
Refer to “CAMSHAFTS” section
in the CHAPTER 5.
Remove the valve lifters 
1 and
the pads 
2

Page 278 of 912

YAMAHA WR 250F 2007  Notices Demploi (in French) 3 - 67
INSP
ADJ
EXAMPLE:
Installed pad number = 148
Rounded off value = 150
NOTE:Pads can only be selected in
0.05 mm increments.
Locate the rounded-off value
and the measured valve clear-
ance in th

Page 281 of 912

YAMAHA WR 250F 2007  Notices Demploi (in French) 3 - 70
INSP
ADJ
ADMISSION
ECHAPPEMENT
JEU MESURENUMERO DE PLAQUETTE MONTEE
120 125 130 135 140 145 150 155 160 165 170175 180 185 190 195 200 205 210 215 220 225 230 235 240
0,00 à 0,04 120 125 130 1

Page 290 of 912

YAMAHA WR 250F 2007  Notices Demploi (in French) 3 - 79
INSP
ADJ
3. Install:
Protector (rear brake)
Reservoir float (front brake)
Diaphragm
Brake master cylinder cap
EC362040FRONT BRAKE ADJUSTMENT
1. Check:
Brake lever position 
a 
2. Remove:


Page 292 of 912

YAMAHA WR 250F 2007  Notices Demploi (in French) 3 - 81
INSP
ADJ
EC364002REAR BRAKE ADJUSTMENT
1. Check:
Brake pedal height 
a 
Out of specification 
→ Adjust.
2. Adjust:
Brake pedal height
Brake pedal height a:
10 mm (0.39 in)
Pedal height adju

Page 306 of 912

YAMAHA WR 250F 2007  Notices Demploi (in French) 3 - 95
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