Tightening Torque; General Torque Specifications - Yamaha MZ125 Service Manual

TIGHTENING TORQUE

Item
Cylinder head
Cylinder head cover
Crankcase cover
Spark plug
Fan case
Connecting rod
Flywheel magneto
Governor arm
TCI unit
Oil drain plug
Valve adjuster locknut
Engine stop switch
GENERAL TORQUE
SPECIFICATIONS
This chart specifies torque for standard fas-
teners with standard ISO 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.
TIGHTENING TORQUE/

GENERAL TORQUE SPECIFICATIONS

Model
Thread size
M 8 × 1.25
M 6 × 1.0
M 8 × 1.25
M14 × 1.25
M 6 × 1.0
M 7 × 1.0
M14 × 1.5
M 6 × 1.0
M 6 × 1.0
M10 × 1.25
M 6 × 0.5
M 6 × 1.0
MZ200
Tread size
M4
M5
M6
M7
M8
M10
M12
3-7
SPEC
Torque
Nm (m·kgf, ft · lbf)
20 (2.0, 14.5)
10 (1.0, 7.2)
22 (2.2, 15.9)
20 (2.0, 14.5)
7 (0.7, 5.1)
12 (1.2, 8.7)
68 (6.8, 49.2)
8 (0.8, 5.8)
10 (1.0, 7.2)
17 (1.7, 12.3)
10 (1.0, 7.2)
4.5 (0.45, 3.3)
Tightening torque
Nm m·kgf
2 0.2
3 0.3
7 0.7
10 1.0
15 1.5
30 3.0
60 6.0
ft·lbf
1.4
2.2
5.1
7.2
10.8
21.7
43.4