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Tightening Torque - Yamaha 25J Service Manual

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SPEC

TIGHTENING TORQUE

Part to be tightened
POWER UNIT
Flywheel
Reed valve
Spark plug
Cylinder head
Exhaust cover
Crankcase
LOWER
Propeller
Lower unit mounting
Ring nut
Pinion gear nut
BRACKET
Lower side mount rubber
Exhaust guide
Clamp lever
PTT mount
Grease nipple
Clamp bracket - upper (manual tilt)
Clamp bracket - upper (PTT)
Clamp bracket - lower (PTT)
PTT UNIT
Reservoir plug
Tilt cylinder assembly
Motor unit
Cylinder end screw
Tilt piston
Gear pump
Main valve
Manual control screw
Up-relief valve screw
ELECTRICAL
Starter motor
TIGHTENING TORQUE
1st
2nd
1st
2nd
1st
2nd
1st
2nd
Thread size
Nm
M16
110
M5
4
M14
20
15
M8
28
3
M6
8
5
M6
11
15
M8
28
M14
35
M10
40
M70
90
M10
50
M10
40
M8
21
M6
11
M6
18
3
7/8 UNF
45
7/8 UNF
23
M10
37
M10
7
M6
9
M6
7
90
M10
61
M4
4
7
3
6
M8
18
2-11
Tightening torque
m•kgf
ft•lb
11
0.4
2.9
2.0
1.5
2.8
0.3
2.2
0.8
5.8
0.5
3.6
1.1
8.0
1.5
2.8
3.5
4.0
9.0
5.0
4.0
2.1
1.1
8.0
1.8
0.3
2.2
4.5
2.3
3.7
0.7
5.1
0.9
0.7
5.1
9.0
6.1
0.4
2.9
0.7
5.1
0.3
0.6
4.3
1.8
E
80
14
11
20
11
20
25
29
65
36
29
15
13
33
17
27
6.5
65
44
2.2
13

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30d25x30x

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