Yamaha BT1100 2002 Service Manual page 168

CRANKSHAFT AND CONNECTING RODS
4-63
CAUTION:
Do not interchange the big end bearings and
connecting rods. To obtain the correct crank-
shaft-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.
NOTE:
Align the projections a on the big end bearings
with the notches b in the connecting rod and con-
necting rod cap.
c. Put a piece of Plastigauge
shaft pin.
d. Assemble the connecting rod halves.
NOTE:
• 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 connecting
rod faces towards the left side of the crankshaft.
• Make sure that the characters 3 on both the
connecting rod and connecting rod cap are
aligned.
e. Tighten the connecting rod nuts.
CAUTION:
• 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 continu-
ous torque between 4.3 and 4.8 m•kg. Once
you reach 4.3 m•kg, DO NOT STOP TIGHT-
ENING 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.
ENG
1 on the crank-
®