Yamaha XV19SW Service Manual page 315

d. Assemble the connecting rod halves.
NOTE:
• Do not move the connecting rod or crankshaft
until the clearance measurement has been
completed.
• Lubricate the bolts threads with molybdenum
disulfide grease.
• Make sure the projection "c" on the connecting
rod faces towards the left side of the crank-
shaft.
• Make sure the characters "d" on both the con-
necting rod and connecting rod cap are
aligned.
e. Tighten the connecting rod bolts.
EWA12890
WARNING
• Replace the connecting rod bolts with new
ones.
• Clean the connecting rod bolts.
NOTE:
The tightening procedure of the connecting rod
bolts is angle controlled, therefore tighten the
bolts using the following procedure.
f. Tighten the connecting rod bolts to the spec-
ified torque.
Connecting rod bolt (1st)
15 Nm (1.5 m·kg, 11 ft·lb)
g. Put a mark "1" on the connecting rod bolts "2"
and the connecting rod cap "3".
h. Tighten the connecting rod bolts further to
reach the specified angle 125–135°.
Connecting rod bolt (final)
Specified angle 125–135°
EW1D71011
WARNING
When a bolt is tightened more than the spec-
ified angle, do not loosen and then retighten
it.
Replace the bolt with a new one and perform
the procedure again.
EC1D71001
CAUTION:
• Do not use a torque wrench to tighten the
bolt to the specified angle.
• Tighten the bolt until it is at the specified
angle.
i. Remove the connecting rod and big end
bearings.
j. Measure the compressed Plastigauge
"e" on the crankshaft pin.
If the crankshaft-pin-to-big-end-bearing
clearance is out of specification, select re-
placement big end bearings.
5-103
CRANKSHAFT
®
width