Yamaha TZ250M, Owner'S Service Manual

Page: 49 / 287

GENERAL TORQUE SPECIFICATIONS/
DEFINITION OF UNITS
2-12
EC220001
GENERAL TORQUE SPECIFICATIONS
A: Distance across flats
B: Outside thread diameter
SPEC
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.
Components should be at room temperature.
A B
TORQUE SPECIFICATION
(Nut) (Bolt)
Nm m
dd
kg ft
dd
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 94
EC230000
DEFINITION OF UNITS
Unit Read Definition Measure
mm millimeter 10 -3 meter Length
cm centimeter 10
-2
meter Length
kg kilogram 10 3 gram Weight
N Newton 1 kg
X
m/sec 2 Force
Nm Newton meter N
X
m Torque
m
dd
kg Meter kilogram m
X
kg Torque
Pa Pascal N/m 2 Pressure
N/mm Newton per millimeter N/mm Spring rate
L Liter – Volume or capacity
cm 3 Cubic centimeter – Volume or capacity
r/min Revolution per minute – Engine speed