Installing The Connecting Rod And Piston - Yamaha Tracer MT09TRAH 2017 Service Manual

Bearing color code
Code 1
Blue
Code 2
Black
Code 3
Brown
Code 4
Green
P
1
P P
A
1
EAS30751
INSTALLING THE CONNECTING ROD AND
PISTON
The following procedure applies to all of the con-
necting rods and pistons.
1. Install:
• Big end bearings
• Connecting rod cap
(onto the connecting rod)
TIP
• Be sure to reinstall each big end bearing in its
original place.
• Align the projections "a" on the big end bear-
P
3
P
2
P
2 3
1
CONNECTING RODS AND PISTONS
ings with the notches "b" in the connecting rods
and connecting rod caps.
• Make sure that the projection "c" on the con-
necting rod cap faces the same direction as the
"Y" mark "d" on the connecting rod.
2. Tighten:
• Connecting rod bolts
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.
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a. Replace the connecting rod bolts with new
ones.
b. Clean the connecting rod bolts and lubricate
the bolt threads and seats with molybdenum
disulfide oil.
c. After installing the big end bearing, assemble
the connecting rod and connecting rod cap
without installing them onto the crankshaft.
d. Tighten the connecting rod bolt while check-
ing that the sections shown "a" and "b" are
flush with each other by touching the surface.
Connecting rod bolt
5-67
b
a
New
30 N·m (3.0 kgf·m, 22 lb·ft)