2007 YAMAHA WR 250F weight

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Page 556 of 912

YAMAHA WR 250F 2007  Manuale duso (in Italian) 5 - 149
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 558 of 912

YAMAHA WR 250F 2007  Manuale duso (in Italian) 5 - 151
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
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