Lower Unit (Counter Rotation Model); Bracket Unit - Yamaha F225F Service Manual

Part to be tightened
Trim tab bolt
Propeller nut
Lower case mounting bolt (X-transom model)
Lower case stud bolt (U-transom model)
Lower case mounting nut (U-transom model)
Lower case mounting bolt (U-transom model)
Water inlet cover screw
Propeller shaft housing ring nut
Cover bolt
Drive shaft nut
Drive shaft ring nut
Pinion nut

Lower unit (counter rotation model)

Part to be tightened
Water inlet cover bolt
Drain screw
Check screw
Trim tab bolt
Propeller nut
Lower case mounting bolt (X-transom model)
Lower case stud bolt (U-transom model)
Lower case mounting nut (U-transom model)
Lower case mounting bolt (U-transom model)
Water inlet cover screw
Propeller shaft housing ring nut
Cover bolt
Drive shaft nut
Drive shaft ring nut
Pinion nut

Bracket unit

Part to be tightened
Adapter screw
Upper mounting nut
Lower mounting nut
Upper mount bracket bolt
Lower mount bracket bolt
Upper case bolt
Anode screw
Drain bolt
Oil strainer bolt
Exhaust manifold bolt
Oil pan bolt
Specified tightening torque
Tightening torques
Screw size
N·m
M10 42
— 54
M10 47
— 23
— 47
M10 47
M5 1
— 155
M8 8
— 40
— 177
— 143
Tightening torques
Screw size
N·m
M5 2
— 9
— 9
M10 42
— 54
M10 47
— 23
— 47
M10 47
M5 1
— 155
M8 8
— 40
— 177
— 143
Tightening torques
Screw size
N·m
ø6 4
— 72
— 72
M10 55
M10 55
M10 42
M8 20
M6 4
— 27
M6 12
M8 20
M8 20
kgf·m ft·lb
4.2 31.0
5.4 39.8
4.7 34.7
2.3 17.0
4.7 34.7
4.7 34.7
0.1 0.7
15.5 114.3
0.8 5.9
4.0 29.5
17.7 130.5
14.3 105.5
kgf·m ft·lb
0.2 1.5
0.9 6.6
0.9 6.6
4.2 31.0
5.4 39.8
4.7 34.7
2.3 17.0
4.7 34.7
4.7 34.7
0.1 0.7
15.5 114.3
0.8 5.9
4.0 29.5
17.7 130.5
14.3 105.5
kgf·m ft·lb
0.4 3.0
7.2 53.1
7.2 53.1
5.5 40.6
5.5 40.6
4.2 31.0
2.0 14.8
0.4 3.0
2.7 19.9
1.2 8.9
2.0 14.8
2.0 14.8
1-28
0
1
2
3
4
5
6
7
8
9
10
A