General Torque Specifications; Definition Of Units - Yamaha YZ250(S)/LC Owner's Service Manual

EC220001

GENERAL TORQUE SPECIFICATIONS

This chart specifies torque for standard faste-
ners with standard I.S.O. pitch threads. Torque
specifications for special components or assem-
blies are included in the applicable sections of
this book. To avoid warpage, tighten multi-faste-
ner assemblies in a crisscross fashion, in pro-
gressive stages, until full torque is reached.
Unless otherwise specified, torque specifications
call for clean, dry threads. Components should
be at room temperature.
A B
(Nut) (Bolt)
10 mm 6 mm
12 mm 8 mm
14 mm 10 mm
17 mm 12 mm
19 mm 14 mm
22 mm 16 mm
EC230000

DEFINITION OF UNITS

Unit
mm milimeter
cm centimeter
kg kilogram
N Newton
Nm Newton meter
m•kg Meter kilogrma
Pa Pascal
N/mm Newton per millimeter
L Liter
cm 3 Cubic centimeter
r/min Revolution per minute
GENERAL TORQUE SPECIFICATIONS/
TORQUE SPECIFICATION
Nm m•kg ft•lb
6 0.6 4.3
15 1.5 11
30 3.0 22
55 5.5 40
85 8.5 61
130 13 94
Read
DEFINITION OF UNITS
A: Distance across flats
B: Outside thread diameter
Definition
10 -
3
meter
10 -
2 meter
10 3 gram
1 kg × m/sec
2
N × m
m × kg
N/m 2
N/mm
—
—
—
2-12
SPEC
Measure
Length
Length
Weight
Force
Torque
Torque
Pressure
Spring rate
Volume or capacity
Volume or capacity
Engine speed