Yamaha F150A Service Manual page 302

Connecting rod bolt "2":
1st: 13 N·m (1.3 kgf·m, 9.6 ft·lb)
2nd: 23 N·m (2.3 kgf·m, 17.0 ft·lb)
3rd: 90°
10. Install the crankshaft journal bearings "1"
into the main bearing cap.
1
1
11. Install the main bearing cap "1", and then
tighten the main bearing cap bolts "2" to
the specified torques in 2 stages and in
the order [1], [2], and so on.
TIP:
In the second tightening stage for the main
bearing cap bolts "2", mark the main bearing
cap bolts and the main bearing cap with iden-
tification marks "a", and then tighten the bolts
90° from the marks on the main bearing cap.
1
1
2
90
a
Main bearing cap bolts "2":
1st: 30 N·m (3.0 kgf·m, 22.1 ft·lb)
2nd: 90°
12. Install the crankshaft journal bearings "1"
into the crankcase.
13. Apply a thin, even layer of sealant onto
the mating surface of the crankcase.
TIP:
• Install the crankshaft journal bearings "1" in
the original positions.
• Do not apply any sealant to the crankshaft
journal bearings "1".
1
14. Install a new O-ring "1" and the crank-
case "2", and then tighten the crankcase
bolts "3" and "4" to the specified torques
in 2 stages and in the order [1], [2], and
so on.
7-77
Crankcase
[5]
[1]
[4]
2
0
[6]
[2]
1
[3]
2
3
4
5
6
7
8
1
9
10
A