2003 YAMAHA WR 250F ECU

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Page 413 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 88
ENG
PRÜFUNG
Ventil
1. Messen:
Ventilschaftspiel
Unvorschriftsmäßig 
→ Ventil-
führung erneuern. Ventilschaftspiel = 
Ventilführungsdurchmesser 
a – Ventilschaftdurchmesser 
b 
Ventils

Page 424 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 99
ENGVALVES AND VALVE SPRINGS
3. Install:
Valve cotter
NOTE:While compressing the valve spring
with a valve spring compressor 
1
install the valve cotters.
Valve spring 
compressor:
YM-4019/9089

Page 509 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 184
ENG
2. Montieren:
Torsionfeder 
1 
(an der Kickstarterwelle 
2)
HINWEIS:
Darauf achten, daß das Ende 
a der
Torsionsfeder in die Bohrung 
b der
Kickstarterwelle eingreift.
3. Montieren:
Fed

Page 528 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 203
ENGENGINE REMOVAL
EC4M0000
ENGINE REMOVAL
Extent of removal Order Part name Q’ty Remarks
ENGINE REMOVAL
Preparation for removal Hold the machine by placing the suitable 
stand under the fram

Page 531 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 206
ENG
EXTRACCIÓN DEL MOTOR
Alcance de la extracción Orden Denominación de la pieza Cantidad Observaciones
EXTRACCIÓN DEL MOTOR
Preparación para la extracción Sujete el vehículo colocando

Page 578 of 860

YAMAHA WR 250F 2003  Owners Manual 5 - 1
CHASFRONT WHEEL AND REAR WHEEL
EC500000
CHASSIS
EC590000
FRONT WHEEL AND REAR WHEEL
EC598000FRONT WHEEL
Extent of removal:
1 Front wheel removal
2 Wheel bearing removal
3 Brake disc removal
Exte

Page 582 of 860

YAMAHA WR 250F 2003  Owners Manual 5 - 5
CHASFRONT WHEEL AND REAR WHEEL
EC598100REAR WHEEL
Extent of removal:
1 Rear wheel removal
2 Wheel bearing removal
3 Brake disc removal
Extent of removal Order Part name Q’ty Remarks
REAR WHEEL

Page 600 of 860

YAMAHA WR 250F 2003  Owners Manual 5 - 23
CHASFRONT BRAKE AND REAR BRAKE
EC5A0000
FRONT BRAKE AND REAR BRAKE
EC5A8000FRONT BRAKE
Extent of removal:
1 Brake hose removal
2 Brake caliper removal
3 Brake master cylinder removal
Extent of