Yamaha F30A 2018, Service Manual

Page: 214 / 348

7-59
Cylinder block
h. Remove the crankcase, and then measure
the width of the compressed Plastigauge
(PG-1) on each crankshaft journal.
TIP:
When loosening the crankcase bolts, loosen
them in the opposite order used for tightening.
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S electing the crankshaft journal bear-
ing
When replacing the crankshaft journal bearing,
select the bearing as follows:
1. Select:
• Crankshaft journal bearing
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a. Remove the crankshaft journal bearings.
b. Check the mark “a” on the crank web and
the mark “b” on the cylinder block.
c. Select the suitable colors “c” for the crank-
shaft journal bearing.
Crankcase bolt (M8) “2” [1]–[8]
1st: 15 N·m (1.5 kgf·m, 11 lb·ft)
2nd: 30 N·m (3.0 kgf·m, 22 lb·ft)
Crankcase bolt (M6) “3” [9]–[16]
1st: 6 N·m (0.6 kgf·m, 4.4 lb·ft)
2nd: 12 N·m (1.2 kgf·m, 8.9 lb·ft)
[14]
[10]
[11]
[15]
[13]
[9]
[12]
[16]
[5]
[1]
[4]
[8]
[6]
[2]
[3]
[7]
3
2
T
R
.
.
J1
J2
J2 J3 J4
J3 J4
J1
a
J1
J2
J3
J4
b
c
c