Yamaha 150A Service Manual page 38

SPEC
Part to be tightened
Connecting rod
LOWER UNIT
Propeller
Rear propeller (for D150H/D150TR)
Forward propeller (for D150H/D150TR)
Lower unit
Ring nut
Pinion nut
Gear oil drain screw
Gear oil level check screw
BRACKET UNIT
Flushing hose
Shift rod detent mechanism screw
Upper mount
Lower mount
Exhaust manifold assembly
Muffler
Exhaust manifold
Lower exhaust manifold guide
Clamp bracket
Trim sensor stopper
Trim stopper
POWER TRIM AND TILT UNIT
Power trim and tilt reservoir cap
Power trim and tilt reservoir
Power trim and tilt motor
Manual valve
Tilt ram end screw
Gear pump unit
Gear pump
Trim ram end screw
TIGHTENING TORQUES
1st
2nd
3rd
4th
5th
Thread size
Nm
19
37
M8 0
19
37
M18 55
M18 55
M45 65
M10 40
— 145
M22 95
— 7
— 7
M5 5
— 24
M12 53
M14 73
M8 21
M8 18
M8 18
M8 18
M22 15
M6 2
— 37
— 8
1/4" 5
1/4" 5
— 4
— 130
5/16" 9
— 6
— 80
2-19
Tightening torques
m•kgf
1.9
3.7
0
1.9
3.7
5.5
5.5
6.5
4.0
14.5
9.5
0.7
0.7
0.5
2.4
5.3
7.3
2.1
1.8
1.8
1.8
1.5
0.2
3.7
0.8
0.5
0.5
0.4
13
0.9
0.6
8.0
E
ft•lb
14
27
0
14
27
40
40
47
29
105
68
5.1
5.1
3.6
17
38
53
15
13
13
13
11
1.4
27
5.8
3.6
3.6
2.9
94
6.5
4.3
52