Yamaha YZF-R1P 2001-2003, Service Manual

Page: 308 / 439

5 - 72
ENG
CONNECTING RODS AND PISTONS
2. Select:
• big end bearings (P1 ~ P4)
NOTE:
@
• The numbers
È
stamped into the crankshaft
web and the numbers
1
on the connecting
rods are used to determine the replacement
big end bearing sizes.
• “P1” ~ “P4” refer to the bearings shown in the
crankshaft illustration.
For example, if the connecting rod “P
1
” and the
crankshaft web “P
1
” numbers are “4” and “1”
respectively, then the bearing size for “P1” is:
“P
1
” (connecting rod) –
“P
1
” (crankshaft) – 2 =
5 – 1 – 2 = 2 (black)
BIG END BEARING COLOR CODE
–1 violet
0 white
1 blue
2 black
INSTALLING THE CONNECTING ROD AND
PISTON
The following procedure applies to all of the
connecting rods and pistons.
1. Install:
• top ring 1
• 2nd ring 2
• upper oil ring rail 3
• oil ring expander 4
• lower oil ring rail 5
NOTE:
@
Be sure to install the piston rings so that the
manufacturer’s marks or numbers
a
face up.