Yamaha 1998 FZS600 5DM1-AE1, Service Manual

Page: 176 / 364

4-64
CRANKSHAFT
ENG
A
1
1
b
a
1
1
CAUTION:
NOTE:
For example, if the crankcase “J
1
” and
crankshaft web “J1” numbers are “6” and “2”
respectively, then the bearing size for “J1” is:
Bearing size for J1:
J
1
(crankcase) – J1 (crankshaft web) +
1 = 6 – 2 + 1 = 5 (yellow)
CRANKSHAFT
JOURNAL
BEARING
COLOR CODE 1
1 2 3 4 5 6
blue black brown green yellow pink
5. Measure:
crankshaft-pin-to-big-end-bearing clear-
ance
Out of specification
Replace the big end
bearings.
Crankshaft-pin-to-big-end-
bearing clearance
0.043 0.066 mm
Limit 0.08 mm
The following procedure applies to all of
the connecting rods.
Do not interchange the big end bearings
and connecting rods. To obtain the cor-
rect crankshaft-pin-to-big-end-bearing
clearance and prevent engine damage,
the big end bearings must be installed in
their original positions.
a. Clean the big end bearings, crankshaft
pins, and bearing portions of the connect-
ing rods.
b. Install the big end upper bearing into the
connecting rod and the big end lower
bearing into the connecting rod cap.
Align the projections
a
on the big end bear-
ings with the notches b in the connecting
rod and connecting rod cap.
c. Put a piece of Plastigauge

1 on the
crankshaft pin.