Yamaha YZF-R6 99 Service Manual page 209

J
J J
J
J 5
3 4
2
1
CRANKSHAFT
g. Remove the lower crankcase and the crank-
shaft journal lower bearings.
h. Measure the compressed Plastigauge
width c each crankshaft journal.
If the clearance is out of specification, select
replacement crankshaft journal bearings.
2. Select:
S crankshaft journal bearings (J
NOTE:
S The numbers stamped into the crankshaft web
and the numbers stamped into the lower
crankcase are used to determine the replace-
ment crankshaft journal bearing sizes.
S "J
" "J " refer to the bearings shown in the
1 5
crankshaft illustration.
S If "J
" "J " are the same, use the same size
1 5
for all of the bearings.
For example, if the crankcase "J
shaft web "J " numbers are "6" and "2" respec-
1
tively, then the bearing size for "J
Bearing size for J
"J " (crankcase) – "J
1
web) – 1=
6 – 2 – 1 = 3
CRANKSHAFT JOURNAL BEARING
COLOR CODE
0
1
2
3
4
NOTE:
If the size is the same for all "J
for that size is indicated. (crankcase side only)
4-81
ENG
J )
1 5
" and crank-
1
" is:
1
:
1
" (crankshaft
1
White
Blue
Black
Brown
Green
to J ", one digit
1 5