Yamaha WR250F(S), Owner'S Service Manual

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GENERAL TORQUE SPECIFICATIONS/
DEFINITION OF UNITS
SPEC
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: Distance between flats
B: Outside thread diameter
EC230000
DEFINITION OF UNITS
A
(Nut)
B
(Bolt)
TORQUE
SPECIFICATION
Nm m•kg ft•lb
10 mm
12 mm
14 mm
17 mm
19 mm
22 mm 6 mm
8 mm
10 mm
12 mm
14 mm
16 mm
6
15
30
55
85
130
0.6
1.5
3.0
5.5
8.5
13
4.3
11
22
40
61
94
Unit Read Definition Measure
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 Pascal N/m
2
Pressure
N/mm Newton per millimeter N/mm Spring rate
L
cm
3
Liter
Cubic centimeter —
— Volume or capacity
Volume or capacity
r/min Revolution per minute — Engine speed