Bracket Unit; General Tightening Torque - Yamaha F4B Service Manual

SPEC

Bracket unit

Part to be tightened
Throttle rod screw
Throttle grip screw
Tiller handle mounting bolt
Carrying handle bolt
Start-in-gear protection cable locknut
Primer pump holder bolt
Shift lever bolt
Shift link bolt
Grease nipple
Self-locking nut

General tightening torque

This chart indicates the tightening torques for
standard fasteners with a standard ISO
thread pitch. Tightening torque specifications
for special components and assemblies are
provided in the applicable sections of this
manual. To prevent warpage, tighten multi-
fastener assemblies in a crisscross fashion
and progressive stages until the specified
torque is reached. Unless otherwise indi-
cated, torque specifications require clean,
dry threads.
Components should be at room temperature.
Width
Screw
across
size (B)
flats (A)
8 mm M5
10 mm M6
12 mm M8
14 mm M10
17 mm M12
1-11
Specification
General torque
specifications
N·m kgf·m ft·lb
5 0.5 3.7
8 0.8 5.9
18 1.8 13.3
36 3.6 26.6
43 4.3 31.7
Screw size
N·m
M5 4
M5 4
M8 28
M8 19
— 4
M6 11
M8 19
M5 3.5
— 3
— 15
Tightening torques
kgf·m ft·lb
0.4 3.0
0.4 3.0
2.8 20.7
1.9 14.0
0.4 3.0
1.1 8.1
1.9 14.0
0.35 2.58
0.3 2.2
1.5 11.1