Yamaha F20A Service Manual page 56

SPEC
Part to be tightened
Clamp bracket - lower (manual tilt)
Tilt stop lever
Clamp bracket - upper (PTT)
Clamp bracket - lower (PTT)
Oil pan
Engine oil drain bolt
Muffler
Exhaust manifold
Exhaust guide
Grease nipple
PTT mount
PTT UNIT
Plug screw
Tilt cylinder
Motor unit
Cylinder end screw
Gear pump
Main valve
Tilt piston
Manual control screw
Up-relief valve
ELECTRICAL
Oil pressure switch
Starter motor mounting
CDI unit
Ignition coil
Engine stop switch
Starter switch
TIGHTENING TORQUES
Thread size
Nm
M8 8.0
M8 8.0
7/8 UNF 23.0
M10 37.0
M6 10.3
— 27.0
M6 9.3
M6 9.3
M8 21.0
— 3.0
M6 18.0
M10 7.0
M6 9.0
M6 7.0
— 90.0
M4 4.0
— 7.0
M10 61.0
— 3.0
— 6.0
1/8 NPTF 5.7
M8 29.5
M6 7.0
M6 7.0
— 4.5
— 4.5
2-11
Tightening torque
m • kg ft • lb
0.8 5.8
0.8 5.8
2.3 17.0
3.7 27.0
0.95 7.6
2.7 19.9
0.95 6.9
0.95 6.9
2.1 15.5
0.3 2.2
1.8 13.0
0.7 5.2
0.9 6.6
0.7 5.2
9.2 66.4
0.4 3.0
0.7 5.2
6.1 44.0
0.3 2.2
0.6 4.3
0.6 4.2
3.0 21.8
0.7 5.2
0.7 5.2
0.5 3.3
0.5 3.3
E