General Torque Specifications; Definition Of Units - Yamaha WR250FR Owner's Service Manual

EC220001

GENERAL TORQUE SPECIFICATIONS

This chart specifies torque for standard fasten-
ers with standard I.S.O. pitch threads. Torque
specifications for special components or
assemblies are included in the applicable sec-
tions of this book. To avoid warpage, tighten
multi-fastener assemblies in a crisscross fash-
ion, in progressive stages, until full torque is
reached. Unless otherwise specified, torque
specifications call for clean, dry threads. Com-
ponents should be at room temperature.
A B
(Nut) (Bolt)
Nm
10 mm 6 mm 6
12 mm 8 mm 15
14 mm 10 mm 30
17 mm 12 mm 55
19 mm 14 mm 85
22 mm 16 mm 130
EC230000

DEFINITION OF UNITS

Unit
mm millimeter
cm centimeter
kg kilogram
N Newton
Nm Newton meter
m • kg Meter kilogram
Pa Pascal
N/mm Newton per millimeter
L Liter
3
cm Cubic centimeter
r/min Revolution per minute
GENERAL TORQUE SPECIFICATIONS/
DEFINITION OF UNITS
TORQUE
SPECIFICATION
m•kg ft•lb
0.6 4.3
1.5 11
3.0 22
5.5 40
8.5 61
13 94
Read
10
10
10
1 kg × m/sec
N × m
m × kg
N/m
N/mm
2 - 19
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A: Distance between flats
B: Outside thread diameter
Definition
-3
meter
-2
meter
3
gram
2
2
—
—
—
SPEC
Measure
Length
Length
Weight
Force
Torque
Torque
Pressure
Spring rate
Volume or capacity
Volume or capacity
Engine speed