Power Unit - Yamaha F150A Service Manual

Power unit

Part to be tightened
Spark plug
Power unit mounting bolt
Apron screw
PTT motor lead bolt
Flywheel magnet nut
Drive sprocket bolt
Timing belt tensioner bolt
Starter motor mounting bolt
Starter motor lead bolt
Terminal nut
Ignition coil bolt
PTT relay nut
Starter relay lead bolt
Camshaft cap bolt
Driven sprocket bolt
Cylinder head cover plate screw
Cylinder head bolt
Exhaust cover bolt
Thermostat cover bolt
Exhaust cover plug
Oil pump cover screw
Balancer assembly bolt
Crankcase cover bolt
Oil filter
Oil pressure sensor
Engine hanger bolt
Engine temperature sensor
Cylinder block plug
Union bolt
Relief valve
Screw size
—
M8
M10
M6
M6
—
M5
—
M8
M6
—
M6
—
M6
1st
M7
2nd
M10
M4
1st
M8
2nd
1st
2nd M10
3rd
1st
M6
2nd
1st
M6
2nd
M14
M18
M6
1st
M6
2nd
1st
M8
2nd
1st
M6
2nd
1st
M8
2nd
—
—
M6
—
M14
—
—
1-18
Specified tightening torque
Tightening torques
N·m kgf·m
25 2.5
20 2.0
42 4.2
4 0.4
4 0.4
270 27.0
7 0.7
39 3.9
30 3.0
4 0.4
9 0.9
7 0.7
4 0.4
4 0.4
9 0.9
17 1.7
60 6.0
2 0.2
14 1.4
28 2.8
28 2.8
56 5.6
90°
6 0.6
12 1.2
6 0.6
12 1.2
23 2.3
56 5.6
4 0.4
7 0.7
13 1.3
18 1.8
31 3.1
7 0.7
13 1.3
18 1.8
31 3.1
18 1.8
18 1.8
12 1.2
15 1.5
23 2.3
34 3.4
32 3.2
ft·lb
0
18.4
14.8
31.0
3.0
1
3.0
199.1
5.2
28.8
2
22.1
3.0
6.6
3
5.2
3.0
3.0
6.6
4
12.5
44.3
1.5
10.3
5
20.7
20.7
41.3
6
4.4
8.9
4.4
7
8.9
17.0
41.3
3.0
8
5.2
9.6
13.3
22.9
9
5.2
9.6
13.3
10
22.9
13.3
13.3
8.9
11.1
17.0
25.1
23.6
A