Yamaha WR45OFR Bicycle User Manual


 
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ENG
BALANCER
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
Primary drive gear 3
Nut (primary drive gear) 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.
5. Bend the lock washer tab.
T
R
.
.
50 Nm (5.0 m · kg, 36 ft · lb)
T
R
.
.
75 Nm (7.5 m · kg, 54 ft · lb)
b
3