Yamaha XSR 900 2022 Service Manual page 294

1
1
1
2
2. Tighten:
• Connecting rod bolt
ECA18390
NOTICE
Tighten the connecting rod bolts using the
plastic-region tightening angle method. Al-
ways install new bolts.
TIP
Install by carrying out the following procedures in
order to assemble in the most suitable condition.
CONNECTING RODS AND PISTONS
1
a
b
New
a. Replace the connecting rod bolts with new
ones.
b. Clean the connecting rod bolts and lubri-
cate the bolt threads and seats with molyb-
denum disulfide oil.
c. After installing the big end bearing, assem-
ble the connecting rod and connecting rod
cap without installing them onto the crank-
shaft.
d. Tighten the connecting rod bolt while
checking that the sections shown "a" and
"b" are flush with each other by touching the
surface.
Connecting rod bolt
30 N·m (3.0 kgf·m, 22 lb·ft)
TIP
To install the big end bearing, care should be
taken not to install it at an angle and the position
should not be out of alignment.
a
a. Side machined face
b. Thrusting faces
e. Loosen the connecting rod bolt, remove the
connecting rod and connecting rod cap and
install these parts to the crankshaft with the
big end bearing kept in the current condi-
tion.
5-77
b