Yamaha 1999 XVS1100, Service Manual

Page: 168 / 355

4-63
CRANKSHAFT AND CONNECTING RODS
ENG
CAUTION:
NOTE:
NOTE:
CAUTION:
Do not interchange the big end bearings and
connecting rods. To obtain the correct
crankshaft-pin-to-big-end-bearing clearance
and prevent engine damage, the big end
bearings must be installed in their original
positions.
a. Clean the big end bearings, crankshaft pins,
and the inside of the connecting rod halves.
b. Install the big end upper bearing into the con-
necting rod and the big end lower bearing
into the connecting rod cap.
Align the projections
a
on the big end bearings
with the notches b in the connecting rod and
connecting rod cap.
c. Put a piece of Plastigauge

1 on the crank-
shaft pin.
d. Assemble the connecting rod halves.
Do not move the connecting rod or crankshaft
until the clearance measurement has been
completed.
Apply molybdenum disulfide grease onto the
bolts, threads, and nut seats.
Make sure that the “Y” mark 2 on the connect-
ing rod faces towards the left side of the crank-
shaft.
Make sure that the characters 3 on both the
connecting rod and connecting rod cap are
aligned.
e. Tighten the connecting rod nuts.
When tightening the connecting rod nuts,
be sure to use an F-type torque wrench.
Without pausing, tighten the connecting
rod nuts to the specified torque. Apply con-
tinuous torque between 4.3 and 4.8 m
kg.
Once you reach 4.3 m kg, DO NOT STOP
TIGHTENING until the specified torque is
reached.
If the tightening is interrupted between 4.3
and 4.8 m
kg, loosen the connecting rod
nut to less than 4.3 m kg and start again.