2005 YAMAHA WR 250F lock

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Page 392 of 864

YAMAHA WR 250F 2005  Notices Demploi (in French) 4 - 67
ENGCAMSHAFTS
Fit the timing chain 
3 onto both
camshaft sprockets and install
the camshafts on the cylinder
head.
NOTE:The camshafts should be installed
onto the cylinder head so that the
punc

Page 394 of 864

YAMAHA WR 250F 2005  Notices Demploi (in French) 4 - 69
ENGCAMSHAFTS
3. Turn:
Crankshaft
Counterclockwise several
turns.
4. Check:
Rotor T.D.C. mark
Align with the crankcase align
mark.
Camshaft match marks
Align with the cylinder head
surface.
O

Page 450 of 864

YAMAHA WR 250F 2005  Notices Demploi (in French) 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  Notices Demploi (in French) 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 476 of 864

YAMAHA WR 250F 2005  Notices Demploi (in French) 4 - 151
ENGBALANCER
BALANCER
Extent of removal:
1 Balancer shaft drive gear
2 Balancer shaft
Extent of removal Order Part name Q’ty Remarks
BALANCER REMOVAL
Preparation for removal Primary driven ge

Page 480 of 864

YAMAHA WR 250F 2005  Notices Demploi (in French) 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 481 of 864

YAMAHA WR 250F 2005  Notices Demploi (in French) 4 - 156
ENG
DEMONTAGE-EINZELHEITEN
Ausgleichswellen-Antriebsritzel 
und -rad
1. Die Lasche der Sicherungs-
scheibe umbiegen.
2. Lockern:
Mutter 
(Primärantriebsritzel) 
1 
Mutter
(Ausgleichswellen-

Page 482 of 864

YAMAHA WR 250F 2005  Notices Demploi (in French) 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