Yamaha F150B, Service Manual

Page: 42 / 458

1-21
SPEC
Specification
General tightening torque
This chart specifies tightening torques for
standard fasteners with a standard ISO
thread pitch. Tightening torque specifications
for special components or assemblies are
provided in applicable sections of this man-
ual. To avoid warpage, tighten multi-fastener
assemblies in a crisscross fashion and pro-
gressive stages until the specified torque is
reached. Unless otherwise specified, torque
specifications require clean, dry threads.
Components should be at room temperature.
Part to be tightened Thread size
Tightening torques
N·m kgf·m ft·lb
Manual valve — 3.5 0.35 2.58
Tilt cylinder end screw — 128 12.8 94.4
Tilt piston nut — 96 9.6 70.8
Trim cylinder end screw — 140 14.0 103.3
Filter plug — 6 0.6 4.4
Width
across
flat (A)
Screw
size (B)
General torque
specifications
N·m kgf·m ft·lb
8 mm
10 mm
12 mm
14 mm
17 mm
M5
M6
M8
M10
M12
5
8
18
36
43
0.5
0.8
1.8
3.6
4.3 3.7
5.9
13.3
26.6
31.7