Tightening Torques - Yamaha F100A Service Manual

SPEC

TIGHTENING TORQUES

Part to be tightened
POWER UNIT
Breather cover bolt
Camshaft cap bolt
Camshaft pulley bolt
Connecting rod bolt
Crankcase bolt
Crankcase journal bolt
Drive sprocket nut
Cylinder head
Cylinder head bolt
Cylinder head cover bolt
Outer exhaust cover bolt
Flywheel magneto nut
Fuel pump bracket bolt
Oil filter
Oil filter plug (cylinder block)
Spark plug
Spark plug cap cover hexagon bolt
Throttle link ball joint
Timing belt tensioner bolt
Timing plate screw
LOWER UNIT
Cooling water inlet screw
Lower unit mounting bolt/nut
Pinion gear nut
Propeller nut
Ring nut
BRACKET
Apron mounting screw
Exhaust guide mounting bolt
Exhaust manifold mounting bolt
Grease nipple
Lower rubber mounting nut
Oil drain bolt
TIGHTENING TORQUES
1st
2nd
1st
2nd
1st
2nd
1st
2nd
1st
2nd
1st
2nd
3rd
1st
2nd
Thread size
M4
M7
M10
M8
M8
M10
(1.5 mm pitch)
M40
M8
M10
(1.5 mm pitch)
M6
M6
M24
M7
—
M20
M14
M6
—
M10
M6
—
M10
M16
M16
M101.5
—
M8
M6
—
M12
M14
2-10
Tightening torques
Nm m • kg
2 0.2
8 0.8
17 1.7
60 6.0
8 0.8
°
Turn 90
14 1.4
28 2.8
19 1.9
°
(*1)
Turn 60
265 27
14 1.4
28 2.8
15 1.5
33 3.3
°
(*2)
Turn 90
8 0.8
6 0.6
12 1.2
190 19
17 1.7
18 1.8
50 5.0
25 2.5
4 0.4
4 0.4
40 4.0
4 0.4
5 0.5
40 4.0
95 9.5
35 3.5
100 10
4 0.4
20 2.0
10 1.0
3 0.3
52 5.2
27 2.7
E
ft • lb
1.4
5.8
12
43
5.8
10
20
14
192
10
20
11
24
5.8
4.3
8.7
137
12
13
36
18
2.9
2.9
29
2.9
3.6
29
68
25
72
2.9
14
7.2
2.2
38
20