Yamaha YZF-R1 1998 Service Manual page 213

CRANKSHAFT
g. Remove the lower crankcase and the
crankshaft journal lower bearings.
h. Measure
®
gauge
journal.
If the clearance is out of specification,
select replacement crankshaft jour-
nal bearings.
2. Select:
• crankshaft journal bearings (J
NOTE:
• The numbers stamped into the crank-
shaft web and the numbers stamped
into the lower crankcase are used to
determine the replacement crankshaft
journal bearing sizes.
• "J " ~ "J
1 5
in the crankshaft illustration.
• If "J " ~ "J
1
same size for all of the bearings.
For example, if the crankcase "J
crankshaft web "J
and "2" respectively, then the bearing
size for "J " is:
1
Bearing size for J
"J " (crankcase) – "J
1
web) – 2 =
6 – 2 – 2 = 2
CRANKSHAFT JOURNAL BEARING
–1
0
1
2
3
4 - 77
ENG
the compressed
width c on each crankshaft
" refer to the bearings shown
" are the same, use the
5
" numbers are "6"
1
:
1
" (crankshaft
1
COLOR CODE
pink/violet
pink/white
pink/blue
pink/black
pink/brown
Plasti-
~ J )
1 5
" and
1