2005 YAMAHA WR 250F transmission

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Page 447 of 864

YAMAHA WR 250F 2005  Manuale duso (in Italian) 4 - 122
ENG
Organisation de la dépose Ordre Nom de la pièce QtéRemarques
10 Disque garni 9
11 Plateau d’embrayage 8
12 Plaquette de progressivité1
13 Plaque de siège 1
14 Ecrou (noix d’embray

Page 450 of 864

YAMAHA WR 250F 2005  Manuale duso (in Italian) 4 - 125
ENGCLUTCH
EC4A3000REMOVAL POINTS
Clutch boss
1. Remove:
Nut 
1 
Lock washer 
2 
Clutch boss 
3 
NOTE:Straighten the lock washer tab and
use the clutch holding tool 
4 to hold
the clutch bos

Page 454 of 864

YAMAHA WR 250F 2005  Manuale duso (in Italian) 4 - 129
ENGCLUTCH
EC4A5000ASSEMBLY AND INSTALLATION
Push lever shaft
1. Install:
Push lever shaft 
1 
Bolt (push lever shaft) 
2 
NOTE:Apply the lithium soap base grease
on the oil seal lip.
Apply

Page 468 of 864

YAMAHA WR 250F 2005  Manuale duso (in Italian) 4 - 143
ENGOIL FILTER ELEMENT, WATER PUMP AND RIGHT CRANKCASE COVER
REMOVAL POINTS
Impeller shaft
1. Remove:
Impeller 
1 
Washer 
2 
Impeller shaft 
3 
NOTE:Hold the impeller shaft on its width
acr

Page 472 of 864

YAMAHA WR 250F 2005  Manuale duso (in Italian) 4 - 147
ENGOIL FILTER ELEMENT, WATER PUMP AND RIGHT CRANKCASE COVER
Impeller shaft
1. Install:
Impeller shaft 
1 
Washer 
2 
Impeller 
3 
NOTE:Take care so that the oil seal lip is
not damaged or

Page 477 of 864

YAMAHA WR 250F 2005  Manuale duso (in Italian) 4 - 152
ENG
BALANCIER
Organisation de la dépose:1 Pignon menant d’arbre de balancier2 Arbre de balancier
Organisation de la dépose Ordre Nom de la pièce QtéRemarques
DEPOSE DU BALANCIER
Prépara

Page 480 of 864

YAMAHA WR 250F 2005  Manuale duso (in Italian) 4 - 155
ENGBALANCER
REMOVAL POINTS
Balancer shaft drive gear and 
balancer shaft driven gear
1. Straighten the lock washer tab.
2. Loosen:
Nut (primary drive gear) 
1 
Nut 
(balancer shaft driven ge

Page 482 of 864

YAMAHA WR 250F 2005  Manuale duso (in Italian) 4 - 157
ENGBALANCER
ASSEMBLY AND INSTALLATION
Balancer shaft, balancer shaft 
drive gear and balancer shaft 
driven gear
1. Install:
Balancer shaft 
1 
NOTE:Apply the engine oil on the bear-
ing.
W