Installing The Balancer Drive Gear And Balancer Driven Gear - Yamaha YFZ450S 2003 Service Manual

BALANCER
INSTALLING THE BALANCER DRIVE GEAR
AND BALANCER DRIVEN GEAR
1. Install:
• balancer driven gear 1
NOTE:
Install the balancer driven gear onto the bal-
ancer while aligning the punch mark a on the
balancer driven gear with the shorter spline b
on the balancer end.
2. Install:
• balancer drive gear 1
NOTE:
• Align the punch mark a on the balancer
drive gear with the punch mark b on the bal-
ancer driven gear.
• Align the punch mark c on the balancer
drive gear with the shorter spline d on the
crankshaft.
3. Install:
• lock washer 1
• balancer driven gear nut 2
• primary drive gear 3
• primary drive gear nut 4
NOTE:
• Install the primary drive gear with its stepped
side b facing the engine.
• Place an aluminum plate a between the
teeth of the balancer drive gear 5 and driven
gear 6.
4. Bend the lock washer tab.
4 - 57
ENG
New
50 Nm (5.0 m · kg, 36 ft · lb)
75 Nm (7.5 m · kg, 54 ft · lb)