Yamaha WR45OFR Assembly and Installation, Balancer, balancer drive gear and balancer driven gear

BALANCER

ENG

b 3

ASSEMBLY AND INSTALLATION

Balancer, balancer drive gear and balancer driven gear

1.Install:

● Balancer 1

NOTE:

When installing the balancer shaft, align the center of the balancer shaft weight a along the line connecting the centers of the crank- shaft and balancer shaft.

2.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 lower spline b on the balancer end.

3.Install:

● Balancer drive gear 1

NOTE:

●Align the punched mark a on the balancer drive gear with the punched mark b on the balancer driven gear.

●Align the punched mark c on the balancer drive gear with the lower spline d on the crankshaft.

4.Install:

●Lock washer 1

●Nut (balancer) 2

50 Nm (5.0 m · kg, 36 ft · lb)

T . R .

●Primary drive gear 3

●Nut (primary drive gear) 4

75 Nm (7.5 m · kg, 54 ft · lb)

T . R .

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.

5. Bend the lock washer tab.

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