Tightening Torques; Specified Torques - Yamaha F2.5A Service Manual

Tightening torques

Specified torques

Part to be tightened
Power unit
Anode screw
Choke knob nut
Connecting rod cap
Crankcase bolt
Cylinder head bolt
Cylinder head cover bolt
Drive shaft oil seal housing bolt
Exhaust probe bolt
Flywheel magnet nut
Fuel cock lever screw
Rocker arm locknut
Rocker arm stud bolt
Engine oil drain bolt
Power unit bolt
Spark plug
Oil splasher gear bolt
Thermostat cover bolt
Throttle cable lock screw
Top cowling lock lever screw
Drive unit
Gear oil screw
Idle silencer screw
Shift rod arm bolt
Shift rod connecting bolt
Bracket unit
Apron screw
Bottom cowling screw
Tiller handle bolt
Carrying handle screw
Engine shut-off switch nut
Grease nipple
Swivel bracket bolt
Throttle grip screw
Clamp bracket inner nut
Clamp bracket outer nut
Throttle grip shaft cap bolt
Trim rod nut
69M3E11
Maintenance specifications / Tightening torques
Thread size
M5
—
1st
M6
2nd
1st
M6
2nd
1st
M8
2nd
1st
M6
2nd
M8
M8
—
M5
M6
M6
M8
M6
—
M6
M6
—
M3
—
M6
M5
M6
M6
M5
M8
M4
—
—
M6
M5
—
—
M5
—
Tightening torques
N·m kgf·m
2.0 0.2
3.5 0.4
5.0 0.5
9.0 0.9
5.0 0.5
11 1.1
14 1.4
30 3.0
5.0 0.5
12 1.2
18 1.8
20 2.0
44 4.4
0.7 0.1
10 1.0
10 1.0
18 1.8
11 1.1
25 2.5
13 1.3
8.0 0.8
0.4 0.04
0.4 0.04
8.5 0.9
2.5 0.3
5.0 0.5
10 1.0
2.5 0.3
2.0 0.2
26 2.6
1.0 0.1
1.8 0.2
3.0 0.3
12 1.2
3.5 0.4
5.0 0.5
16 1.6
3.0 0.3
5.0 0.5
2
1
ft·lb
1.5
2.6
2
3.7
6.6
3.7
8.1
10.3
3
22.1
3.7
8.9
13
4
14.8
32.4
0.5
7.4
7.4
5
13.3
8.1
18.4
9.6
5.9
6
0.3
0.3
6.3
7
1.8
3.7
7.4
1.8
8
1.5
19.2
0.7
1.3
9
2.2
8.9
2.6
3.7
11.8
2.2
3.7
2-8