2001 YAMAHA WR 426F lug pattern

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Page 380 of 762

YAMAHA WR 426F 2001  Notices Demploi (in French) 4 - 23
ENGCAMSHAFTS
REMOVAL POINTS
Camshaft
1. Remove:
lTiming plug 1 
lStraight plug 2 
2. Align:
l“I” mark
With stationary pointer.
Checking steps:
lTurn the crankshaft counterclockwise with
a w

Page 394 of 762

YAMAHA WR 426F 2001  Notices Demploi (in French) 4 - 30
ENGCYLINDER HEAD
INSPECTION
Cylinder head
1. Eliminate:
lCarbon deposits (from the combustion
chambers)
Use a rounded scraper.
NOTE:
Do not use a sharp instrument to avoid dam-
aging or scratch