Yamaha YZF-R1P Service Manual page 315

CRANKSHAFT
g. Remove the lower crankcase and the crank-
shaft journal lower bearings.
h. Measure the compressed Plastigauge
width c on each crankshaft journal.
If the crankshaft-journal-to-crankshaft-jour-
nal-bearing clearance is out of specification,
select replacement crankshaft journal bear-
ings.
L LLL L LLL L L LLL L
2. Select:
• crankshaft journal bearings (J1 ~ J5)
NOTE:
_
• The numbers È stamped into the crankshaft
web and the numbers 1 stamped into the
lower crankcase are used to determine the
replacement
sizes.
• "J1 ~ J5" refer to the bearings shown in the
crankshaft illustration.
• If "J1 ~ J5" are the same, use the same size
for all of the bearings.
• if the size is the same for all "J
digit for that size is indicated. (Crankcase
side only)
For example, if the crankcase "J
shaft web "J " numbers are "6" and "2" respec-
1
tively, then the bearing size for "J1" is:
"J " (crankcase) – "J
1
(crankshaft web) – 2 =
6 – 2 – 2 = 2 (black)
CRANKSHAFT JOURNAL BEARING
COLOR CODE
–1
0
1
2
3
5 - 79
ENG
L LLL L L LLL L L LLL L
crankshaft journal bearing
to J
1
" and crank-
1
"
1
violet
white
blue
black
brown
®
LLL
" one
5