Yamaha YZF-R1PC Utility Trailer User Manual


 
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ENG
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.
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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 crankshaft journal bearing
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
1
to J
5
one
digit for that size is indicated. (Crankcase
side only)
For example, if the crankcase J
1
and crank-
shaft web J
1
numbers are 6 and 2 respec-
tively, then the bearing size for J1 is:
J
1
(crankcase) J
1
(crankshaft web) 2 =
6 2 2 = 2 (black)
CRANKSHAFT JOURNAL BEARING
COLOR CODE
1 violet
0white
1blue
2black
3brown