Yamaha F80B Service Manual page 27

Part to be tightened
Cylinder head bolt
Spark plug
Cylinder block plug
Oil filter joint
Oil filter
Exhaust cover bolt
Anode screw
Exhaust cover plug
Crankcase bolt
Connecting rod cap bolt
Lower unit
Gear oil drain screw
Gear oil check screw
Lower case mounting bolt (L-transom model)
Lower case mounting nut (X-transom model)
Propeller nut
Ring nut
Cooling water inlet cover screw
Pinion nut
Bracket unit
Shift rod detent bolt
Shift position switch screw
Flushing hose adapter screw
Oil pump bolt
Upper mounting nut
Lower mounting nut
Grease nipple
Oil pump cover screw
Oil seal housing screw
Upper mount bolt
Baffle plate bolt
Muffler assembly bolt
Engine oil drain bolt
Oil strainer bolt
Oil pan bolt
6D93G11
Thread size
1st
M8
2nd
1st
2nd M10
3rd
—
M14
—
—
1st
M6
2nd
M4
M18
1st
M8
2nd
1st
M10
2nd
1st
M8
2nd
—
—
M10
—
M16
—
—
M16
—
M4
M6
M6
—
—
—
M6
M6
M8
M6
M8
M14
M6
M6
Tightening torques
Tightening torques
N·m kgf·m
14 1.4
28 2.8
15 1.5
30 3.0
90°
25 2.5
23 2.3
49 4.9
18 1.8
6 0.6
12 1.2
2 0.2
55 5.5
14 1.4
28 2.8
19 1.9
60°
18 1.8
80°
9 0.9
9 0.9
39 3.9
39 3.9
34 3.4
103 10.3
5 0.5
93 9.3
18 1.8
1 0.1
2 0.2
10 1.0
51 5.1
51 5.1
3 0.3
4 0.4
4 0.4
28 2.8
4 0.4
20 2.0
27 2.7
10 1.0
11 1.1
ft·lb
10.3
1
20.7
11.1
22.1
18.4
2
17.0
36.1
13.3
4.4
3
8.9
1.5
40.6
10.3
20.7
4
14.0
13.3
5
6.6
6.6
28.8
28.8
6
25.1
76.0
3.7
68.6
7
13.3
0.7
1.5
7.4
8
37.6
37.6
2.2
3.0
9
3.0
20.7
3.0
14.8
20.0
7.4
8.1
2-12