transmission YAMAHA WR 250F 2003 Owner's Manual

YAMAHA WR 250F 2003 Owner's Manual WR 250F 2003 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52337/w960_52337-0.png YAMAHA WR 250F 2003 Owner's Manual

Page 481 of 860

YAMAHA WR 250F 2003 Owners Manual 4 - 156
ENG
AUSBAU
Ausgleichswellen-Antriebs- und -
Abtriebsräder
1. Die Lasche der Sicherungs-
scheibe umbiegen.
2. Lockern:
Mutter (Primärantriebsrad) 
1 
Mutter (Ausgleichswelle-
Abtriebsrad)

Page 485 of 860

YAMAHA WR 250F 2003 Owners Manual 4 - 160
ENG
POMPE A HUILE
Organisation de la dépose:1 Dépose de la pompe à huile2 Démontage de la pompe à huile
Organisation de la dépose Ordre Nom de pièce QtéRemarques
DEPOSE ET DEMONTAGE DE

Page 490 of 860

YAMAHA WR 250F 2003 Owners Manual 4 - 165
ENGOIL PUMP
ASSEMBLY AND INSTALLATION
Oil pump
1. Install:
Oil pump drive shaft 
1 
Washer 
2 
Dowel pin 
3 
Inner rotor 1 
4 
NOTE:Apply the engine oil on the oil
pump drive shaft and in

Page 533 of 860

YAMAHA WR 250F 2003 Owners Manual 4 - 208
ENG
Organisation de la dépose:1 Dépose du moteur
Organisation de la dépose Ordre Nom de pièce QtéRemarques
Bobine d’allumage
Déconnecter le fil du volant magnétique CA.
Fil de moteur

Page 536 of 860

YAMAHA WR 250F 2003 Owners Manual 4 - 211
ENGENGINE REMOVAL
EC4M3000REMOVAL POINTSEC4F3100Drive sprocket
1. Remove:
Nut (drive sprocket) 
1 
Lock washer 
2 
NOTE:Straighten the lock washer tab.
Loosen the nut while applying the
re

Page 538 of 860

YAMAHA WR 250F 2003 Owners Manual 4 - 213
ENGENGINE REMOVAL
EC4M5000ASSEMBLY AND INSTALLATION
Engine installation
1. Install:
Engine 
1 
Install the engine from right
side.
Pivot shaft 
2 
Engine mounting bolt 
(lower) 
3 
Lower e

Page 540 of 860

YAMAHA WR 250F 2003 Owners Manual 4 - 215
ENGENGINE REMOVAL
2. Install:
Lock washer 
1 
Nut (drive sprocket) 
2 
NOTE:Tighten the nut while applying the
rear brake.
T R..75 Nm (7.5 m · kg, 54 ft · lb)
New
3. Bend the lock washer t

Page 550 of 860

YAMAHA WR 250F 2003 Owners Manual 4 - 225
ENGCRANKCASE AND CRANKSHAFT
CRANKCASE BEARING
Extent of removal:
1 Crankcase bearing removal
Extent of removal Order Part name Q’ty Remarks
CRANKCASE BEARING REMOVAL
Preparation for removal

Page 554 of 860

YAMAHA WR 250F 2003 Owners Manual 4 - 229
ENGCRANKCASE AND CRANKSHAFT
REMOVAL POINTS
Crankcase
1. Separate:
Right crankcase
Left crankcase
Separation steps:
Remove the crankcase bolts 
1,
hose guide 
2 and clutch cable
holder 
3.
N

Page 562 of 860

YAMAHA WR 250F 2003 Owners Manual 4 - 237
ENGCRANKCASE AND CRANKSHAFT
2. Check:
Shifter operation
Transmission operation
Unsmooth operation 
→ 
Repair.
3. Install:
Oil strainer 
1 
Bolt (oil strainer) 
2 
T R..10 Nm (1.0 m · kg
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