2000 YAMAHA YZ426F width

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Page 296 of 608

YAMAHA YZ426F 2000  Notices Demploi (in French) 4 - 31
ENGVALVES AND VALVE SPRINGS
Measurement steps:
lApply Mechanic’s blueing dye (Dykem) b
to the valve face.
lInstall the valve into the cylinder head.
lPress the valve through the valve guide
a

Page 298 of 608

YAMAHA YZ426F 2000  Notices Demploi (in French) 4 - 32
ENGVALVES AND VALVE SPRINGS
lApply Mechanic’s blueing dye (Dykem) to
the valve face.
lInstall the valve into the cylinder head.
lPress the valve through the valve guide
and onto the valve sea

Page 332 of 608

YAMAHA YZ426F 2000  Notices Demploi (in French) 4 - 49
ENG
OIL FILTER, WATER PUMP AND CRANKCASE COVER
(RIGHT)
EC4G3000
REMOVAL POINTS
EC4G3110
Impeller shaft
1. Remove:
lImpeller 1 
lPlain washer 2 
lImpeller shaft 3 
NOTE:
Hold the impeller shaft

Page 336 of 608

YAMAHA YZ426F 2000  Notices Demploi (in French) 4 - 51
ENG
OIL FILTER, WATER PUMP AND CRANKCASE COVER
(RIGHT)
EC4G5220
Impeller shaft
1. Install:
lImpeller shaft 1 
lPlain washer 2 
lImpeller shaft 3 
NOTE:
lTake care so that the oil seal lip is no

Page 396 of 608

YAMAHA YZ426F 2000  Notices Demploi (in French)  
4 - 81
ENG
 
CRANKCASE AND CRANKSHAFT 
EC4N4101 
Crankcase  
1. Inspect: 
l 
Contacting surface   
a  
 
Scratches   
®  
 Replace. 
l 
Engine mounting boss   
b  
, crankcase 
Cracks/damage   
®
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