TIGHTENING TORQUES
SPECIFIED TORQUES
Parts to be tightened
TOP COWLING
Top cowling hook mounting
FUEL SYSTEM
Fuel joint mounting
Fuel pump housing
Fuel pump check valve
Throttle axle link lock
POWER UNIT
Breather cover mounting
Fuel enrichment solenoid mounting
Intake manifold mounting
Manual starter drive plate mounting
Flywheel rotor mounting
Drive gear mounting
Driven gear mounting
Thermostat housing cover mounting
Power unit mounting
Relief valve assembly
Throttle link bracket mounting
Anode mounting
Exhaust outer cover mounting
Spark plug
Cylinder head mounting
Oil pump assembly mounting
Oil pump housing
Rocker arm locknut
Crankcase mounting
Connecting rod mounting
LOWER UNIT
Apron mounting
Exhaust gas measuring
Engine oil drain
Drain plug damper mounting
Oil pan mounting
Muffler mounting
Gear oil level check
Gear oil drain
Propeller mounting (STD)
Propeller mounting (DUAL)
TIGHTENING TORQUES
Part
name
Bolt
Bolt
Screw
Screw
Screw
Screw
Screw
1st
Bolt
2nd
Screw
Nut
Nut
Bolt
Bolt
Bolt
Bolt
Plug
Screw
1st
Bolt
2nd
1st
Bolt
2nd
1st
Bolt
2nd
Bolt
Screw
Nut
1st
Bolt
2nd
1st
Bolt
2nd
Screw
Bolt
Plug
Screw
Bolt
Bolt
Plug
Plug
Nut
Nut
Thread
Q'ty
size
M5
2
M6
1
M4
4
M3
2
M5
1
M4
5
M4
4
M6
5
—
1
M12
1
M24
1
M6
1
M6
2
M8
6
—
M14
1
M6
2
M16
1
M5
1
M6
5
—
M14
2
M8
6
M6
3
M6
3
M6
2
M5
4
M8
6
M7
4
M6
2
M8
1
M10
1
M5
1
M8
2
M6
2
M8
1
M8
1
M10
1
M10
1
2-22
Tightening torques
N
m
kgf
m
ft
lb
5
0.5
3.7
8
0.8
5.9
1.5
0.15
1.11
0.5
0.05
0.37
1.5
0.15
1.1
2
0.2
1.5
2
0.2
1.5
6
0.6
4.4
12
1.2
8.8
6
0.6
4.4
100
10
72
36
3.6
26.5
12
1.2
8.8
8
0.8
5.9
21
2.1
15.5
8
0.8
5.9
8
0.8
5.9
18
1.8
13.3
2
0.2
1.5
6
0.6
4.4
12
1.2
8.8
25
2.5
18.4
15
1.5
11.1
30
3.0
22.1
6
0.6
4.4
12
1.2
8.8
8
0.8
5.9
5
0.5
3.7
8
0.8
5.9
15
1.5
11.1
30
3.0
22.1
6
0.6
4.4
12
1.2
8.1
4
0.4
2.9
18
1.8
13.3
24
2.4
17.8
2
0.2
1.5
21
2.1
15.5
12
1.2
8.8
7
0.7
5.1
7
0.7
5.1
17
1.7
12.5
20
2.0
14.7
Remarks