Balancer Shaft - Yamaha VMX12H Supplementary Service Manual

INSPECTION AND REPAIR

BALANCER SHAFT

1.Measure:
Oil clearance (balancer shaft bearing)
Out of specification
Oil clearance:
0.020
(0.0008 0.002 in)
Measurement steps:
the bearings, balancer shaft and
bearing portions of the crankcase.
the crankcase (upper)
an upside down position.
the upper half of the bearings and
the balancer shaft into the crankcase
(upper).
a piece of Plastigauge® on each bal-
ancer shaft journal.
the lower half of the bearings into
the crankcase (lower) and assemble the
crankcase halves.
NOTE:
Do not move the. balancer shaft until the oil
clearance measurement has been com-
pleted.
the bolts to specification in the
tightening sequence cast on the crank-
case.
Bo It (crankcase-M8) :
24 Nm (2.4
the crankcase (lower) and lower
half of the bearings.
Measure the compressed Plastigauge®
on each balancer shaft journal. If
width
oil clearance is out of specification, select
a replacement bearing.
- 1 1 -
Replace bearing.
0.048 mm
a bench in
o n
17