Installing The Connecting Rod And Piston - Yamaha XSR MTM690 2016 Service Manual

ECA20890
NOTICE
Do not use a torque wrench to tighten the
bolt to the specified angle.
j. After the installation, check that the section
shown "a" is flush with each other by touching
the surface.
k. Remove the connecting rod and big end
bearings.
l. Measure the compressed Plastigauge®
width on the crankshaft pin. If the crankshaft-
pin-to-big-end-bearing clearance is out of
specification, select replacement big end
bearings.
▲ ▲▲▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲
2. Select:
• Big end bearings (P
TIP
• The numbers "A" stamped into the crankshaft
web and the numbers "B" on the connecting
rods are used to determine the replacement
big end bearings sizes.
• "P "–"P " refer to the bearings shown in the
1 2
crankshaft illustration.
a
▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲
–P )
1 2
CONNECTING RODS AND PISTONS
A
B
For example, if the connecting rod "P
the crankshaft web "P
"2" respectively, then the bearing size for "P
is:
▲▲▲
"P " (connecting rod)– "P
1
3 (brown)
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)
5-77
P1
P2
P1
P2
22 333
" numbers are "5" and
1
" (crankshaft) = 5 – 2 =
1
Bearing color code
1. Blue 2. Black 3. Brown 4.
Green
" and
1
"
1