Yamaha XVS650 Service Manual page 165

CRANKSHAFT AND CONNECTING RODS
ENG
5.1nspect:
• Crank pin surfaces
• Bearing surfaces
Wear/scratches ~ Replace.
6.lnspect:
• Timing chain sprockets
CD
Damage/wear
~
Replace the crankshaft.
7.Measure:
• Oil clearance (crank pin)
Out of specification
~
Replace the bear-
ing.
Oil clearance (crank pin):
0.026 .... 0.050 mm (0.001 .... 0.002 in)
**********************************
Measurement steps:
Do not interchange the bearings and con-
necting rods. To obtain the correct oil
clearance and to prevent engine damage
they must be installed in their original posi-
tions.
• Clean the bearings, crank pins and bear-
ing portions of the connecting rods.
• Install the upper half of the bearing into
the connecting rod and the lower half of
b
the bearing into the connecting rod cap.
NOTE: _
Align the projection
®
of the bearing with
the notch (6) of the connecting rod and its
cap.
• Put a piece of Plastigauge®
CD
on the
crank pin.
• Assemble the connecting rod halves.
NOTE: _
• Do not move the connecting rod or crank-
shaft until the oil clearance measurement
has been completed.
• Apply molybdenum disulfide grease to
the bolts, threads and nut seats.
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