2003 YAMAHA WR 250F stop start

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Page 90 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) MAINTENANCE SPECIFICATIONS
2 - 11
SPEC
NOTE:
 - marked portion shall be checked for torque tightening after break-in or before each race. Silencer M8 × 1.25 2 35 3.5 25
Silencer clamp M8 × 1.25 1 19

Page 127 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) WARTUNGSDATENSPEC
2 - 48 Bauteil Gewinde Anz.Anzugsmoment
Nm m·kg ft·lb
Zündkerze M10S × 1,0 1 13 1,3 9,4
Zündkerzenstecker M6 × 1,0 10 10 1,0 7,2
Zylinderkopf-Blindstopfenschraube M12 × 1,0 1

Page 131 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) WARTUNGSDATENSPEC
2 - 52
HINWEIS:
1. Zuerst die Lenkkopfmutter auf etwa 38 Nm (3,8 m  kg, 27 ft  lb) mit dem Standard-Lenkkopf-
mutternschlüssel festziehen, und dann die Lenkkopfmutter um eine Umdr

Page 190 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) SPEC
2 - 111
CABLE ROUTING DIAGRAM
1Throttle cable
2Brake hose
3Clamp
4Light switch lead
5Hot starter cable
6Clutch cable
7Hose guide
8Clutch switch lead
9Engine stop switch lead
0Trip meter cable
AMa

Page 191 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) 2 - 112
SPEC
1Câble d’accélérateur
2Flexible de frein
3Bride
4Fil de commutateur de feux
5Câble de démarrage à chaud
6Câble d’embrayage
7Guide de flexibles
8Fil de commutateur d’embrayage

Page 212 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) 3 - 21
INSP
ADJ
EC350000
ENGINE
COOLANT LEVEL INSPECTION
WARNING
Do not remove the radiator cap 1,
drain bolt and hoses when the
engine and radiator are hot. Scald-
ing hot fluid and steam may be
blow

Page 240 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) 3 - 49
INSP
ADJ
ENGINE IDLING SPEED 
ADJUSTMENT
1. Start the engine and thoroughly
warm it up.
2. Attach:
Inductive tachometer
To spark plug lead.
3. Adjust:
Engine idling speed
Adjustment steps:
A

Page 364 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) 4 - 39
ENGCARBURETOR
Accelerator pump
1. Inspect:
Diaphragm 
(accelerator pump) 
1 
Spring (accelerator pump) 
2 
Accelerator pump cover 
3 
O-ring 
4 
Push rod 
5 
Tears (diaphragm)/damage 
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