Tightening Torques; Specified Torques - Yamaha F25C Service Manual

SPEC

Tightening torques

Specified torques

Part to be tightened
Fuel system
Fuel pump mounting bolt
Fuel pump screw
Carburetor bracket bolt
Throttle link rod screw
Power unit
Power unit mounting bolt
Apron bolt
Start-in-gear protection cable bolt
Manual starter roller bolt
Starter rope guide bolt
Sheave drum bolt
Starter pulley bolt
Flywheel magnet nut
Stator coil bolt
Driven sprocket bolt
Pulser coil bolt
CDI unit bolt
CDI unit bracket bolt
Ignition coil bolt
Cylinder head bolt
Spark plug
Oil pump screw
Rocker arm locknut
Rocker arm shaft bolt
Thermostat cover bolt
Exhaust cover bolt
Oil filter
Oil filter union bolt
Balancer cover bolt
Balancer piston nut
Crankcase bolt
Connecting rod bolt
2-11
Specifications
2nd
2nd
2nd
2nd
2nd
2nd
Thread size
M6
M5
M6
M4
M8
M6
M5
M6
M6
—
M8
M20
M5
M10
M5
M6
M6
M6
1st
M6
1st
M9
—
M6
M6
M8
M6
1st
M6
—
—
M6
M20
1st
M6
1st
M8
1st
M6
Tightening torques
N·m kgf·m
8 0.8
3 0.3
8 0.8
1 0.1
21 2.1
10 1.0
5 0.5
8 0.8
3 0.3
15 1.5
25 2.5
157 15.7
6 0.6
38 3.8
5 0.5
5 0.5
5 0.5
8 0.8
6 0.6
12 1.2
23 2.3
46 4.6
17 1.7
4 0.4
14 1.4
18 1.8
7 0.7
6 0.6
12 1.2
18 1.8
40 4.0
12 1.2
157 15.7
6 0.6
12 1.2
15 1.5
30 3.0
6 0.6
17 1.7
2
ft·lb
5.9
2.2
5.9
0.7
15.5
7.4
3.7
5.9
2.2
11.1
18.4
115.8
4.4
28.0
3.7
3.7
3.7
5.9
4.4
8.9
17.0
34.0
12.5
3.0
10.3
13.3
5.2
4.4
8.9
13.3
29.5
8.9
115.8
4.4
8.9
11.1
22.1
4.4
12.5
6D55F11