Yamaha RS90NL, Suplementary Service Manual

Page: 223 / 308

114
SPEC
GENERAL TORQUE SPECIFICATIONS/
DEFINITION OF UNITS
GENERAL TORQUE
SPECIFICATIONS
This chart specifies torque for standard fasteners
with standard I.S.O. pitch threads. Torque specifi-
cations for special components or assemblies are
included in the applicable sections of this book. To
avoid warpage, tighten multi-fastener assemblies in
a crisscross fashion, in progressive stages, until full
torque is reached. Unless otherwise specified,
torque specifications call for clean, dry threads.
Components should be at room temperature.
A: Distance across flats
B: Outside thread diameter
DEFINITION OF UNITS
A
(nut)
B
(bolt)
General torque
specifications
Nm m · kg ft · lb
10 mm 6 mm 6 0.6 4.3
12 mm 8 mm 15 1.5 11
14 mm 10 mm 30 3.0 22
17 mm 12 mm 55 5.5 40
19 mm 14 mm 85 8.5 61
22 mm 16 mm 130 13.0 94
Unit Read Definition Measurement
mm
cm Millimeter
Centimeter 10
-3
meter
10
-2
meter
Length
Length
kg Kilogram 10
3
gram Weight
N Newton 1 kg
×
m/sec
2
Force
Nm
m · kg Newton meter
Meter kilogram N
×
m
m
×
kg
Torque
Torque
Pa
N/mm Pascal
Newtons per millimeter N/m
2
N/mm
Pressure
Spring rate
L
cm
3
Liter
Cubic centimeter
— Volume or capacity
r/min Rotations per minute — Engine speed