Selecting The Connecting Rod Bearing - Yamaha F150A Service Manual

Connecting rod bolt:
1st: 23 N·m (2.3 kgf·m, 17.0 ft·lb)
2nd: 43 N·m (4.3 kgf·m, 31.7 ft·lb)
3rd: 90°
6. Remove the connecting rod cap and
measure the width of the compressed
Plastigauge (PG-1) on each crankpin.
Replace the connecting rod bearing if out
of specification.
Crankpin oil clearance:
0.027–0.052 mm
(0.0011–0.0020 in)

Selecting the connecting rod bearing

1. When replacing the connecting rod bear-
ing, select the suitable bearing as fol-
lows.
2. Measure the connecting rod big end
inside diameter a.
a
NOTE:
Reuse the connecting rod bolts.
63P3F11
Example:
Connecting rod big
end inside diameter a
3. Check the crankpin mark b on the
crankshaft.
S60C5980
Cylinder block
Numerical value
53.035 mm
P1
P2 P3
b
P1 P2 P3 P4
in table
1
35
2
P4
3
4
S63P5530
5
6
7
8
9
5-46