Installing The Connection Rod And Piston - Yamaha R1 Series 2015 Service Manual

EWA16610
WARNING
If the bolt is tightened more than the speci-
fied angle, do not loosen the bolt and then re-
tighten it. Instead, replace the bolt with a new
one and perform the procedure again.
k. After the installation, check that the section
shown "a" is flush with each other by touching
the surface.
a
l. Remove the connecting rod and big end
bearings.
m. 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.
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2. Select:
• Big end bearings (P
TIP
• The numbers "A" stamped into the crankshaft
180˚
–P )
1 4
CONNECTING RODS AND PISTONS
web and the numbers "1" on the connecting
rods are used to determine the replacement
big end bearings sizes.
• "P "–"P " refer to the bearings shown in the
1 4
crankshaft illustration.
For example, if the connecting rod "P
the crankshaft web "P
respectively, then the bearing size for "P
"P " (connecting rod) - "P
1
4 (green)
Bearing color code
P
1
EAS30751
INSTALLING THE CONNECTING ROD AND
PISTON
The following procedure applies to all of the con-
necting rods and pistons.
5-78
" numbers are 6 and 2
1
" (crankshaft) = 6 - 2 =
1
1. Blue 2. Black 3. Brown 4.
Green 5. Yellow 6. Pink
P
3
P
2
P P P
1 2 3
1
" and
1
" is:
1
P
4
P
4