Yamaha XG250, Service Manual

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TIGHTENING TORQUES
2-16
Cylinder head tightening sequence:
CHASSIS TIGHTENING TORQUES
1
2
3
4
5
6
Item
Thread
size
Q’ty Tightening torque Remarks
Engine stay and frame M8 4 30 Nm (3.0 m•kg, 22 ft•lb)
Engine stay and engine M10 2 72 Nm (7.2 m•kg, 52 ft•lb)
Engine and frame (rear upper) M10 1 72 Nm (7.2 m•kg, 52 ft•lb)
Engine and frame (rear under) M10 1 72 Nm (7.2 m•kg, 52 ft•lb)
Down tube and frame (front upper) M10 2 72 Nm (7.2 m•kg, 52 ft•lb)
Down tube and frame (rear under) M10 1 72 Nm (7.2 m•kg, 52 ft•lb)
Down tube and engine M10 2 72 Nm (7.2 m•kg, 52 ft•lb)
Chain tensioner M8 2 23 Nm (2.3 m•kg, 17 ft•lb)
Helmet holder M6 1 7 Nm (0.7 m•kg, 5.1 ft•lb)
Grab bar M8 4 32 Nm (3.2 m•kg, 23 ft•lb)
Seat M6 2 7 Nm (0.7 m•kg, 5.1 ft•lb)
Flap guard M6 2 7 Nm (0.7 m•kg, 5.1 ft•lb)
Horn M6 1 10 Nm (1.0 m•kg, 7.2 ft•lb)
Tool box M6 2 7 Nm (0.7 m•kg, 5.1 ft•lb)
Battery box M6 3 7 Nm (0.7 m•kg, 5.1 ft•lb)
Rectifier/regulator M6 2 7 Nm (0.7 m•kg, 5.1 ft•lb)
Ignition coil M6 2 7 Nm (0.7 m•kg, 5.1 ft•lb)
Rear shock absorber and frame M12 1 50 Nm (5.0 m•kg, 36 ft•lb)