Yamaha FJR13AG Service Manual page 425

e. Install the crankshaft journal lower bearings
"3" into the lower crankcase and assemble
the crankcase halves.
TIP
• Align the projections "c" of the crankshaft jour-
nal lower bearings with the notches "d" in the
lower crankcase.
• Do not move the crankshaft until the clearance
measurement has been completed.
f. Tighten the bolts to specification in the tight-
ening sequence cast on the crankcase.
Refer to "CRANKCASE" on page 5-78.
g. Remove the lower crankcase and the crank-
shaft journal lower bearings.
h. Measure the compressed Plastigauge®
width "e" on each crankshaft journal.
If the crankshaft-journal-to-crankshaft-jour-
nal-bearing clearance is out of specification,
select replacement crankshaft journal bear-
ings.
e
▲ ▲▲▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲
4. Select:
• Crankshaft journal bearings (J
TIP
• The numbers "A" stamped into the lower crank-
case and the numbers "B" stamped into the
crankshaft web are used to determine the re-
placement crankshaft journal bearing sizes.
• J –J refer to the bearings shown in the lower
1 5
crankcase and crankshaft web illustration.
▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲▲▲
–J )
1 5
5-96
• If J –J are the same, use the same size for all
1 5
of the bearings.
A
For example, if the lower crankcase J
crankshaft web J numbers are 6 and 2 re-
1
spectively, then the bearing size for J
J (crankcase) - J (crankshaft web) + 2
1 1
=
6 - 2 + 2 = 6 (pink)
CRANKSHAFT
J J J J J
1 2 3 4 5
and
1
is:
1