Yamaha WR250R, Service Manual

Page: 42 / 364

TIGHTENING TORQUES
2-17
EAS20350
CHASSIS TIGHTENING TORQUES
Drive sprocket nut M18 1 95 Nm (9.5 m•kg, 69 ft•lb)
Stake the
nut
Stopper screw (stopper lever) M8 1 22 Nm (2.2 m•kg, 16 ft•lb)
Shift pedal bolt M8 1 18 Nm (1.8 m•kg, 13 ft•lb)
Stator assembly bolt M6 3 10 Nm (1.0 m•kg, 7.2 ft•lb)
Crankshaft position sensor bolt M6 2 10 Nm (1.0 m•kg, 7.2 ft•lb)
Neutral switch M5 2 4 Nm (0.4 m•kg, 2.9 ft•lb)
Thermosensor bolt M12 1 18 Nm (1.8 m•kg, 13 ft•lb)
Drive sprocket cover bolt M6 3 10 Nm (1.0 m•kg, 7.2 ft•lb)
Right side cover bolt M6 1 10 Nm (1.0 m•kg, 7.2 ft•lb)
Side cover stay bolt M6 2 10 Nm (1.0 m•kg, 7.2 ft•lb)
Cylinder bolt M6 2 10 Nm (1.0 m•kg, 7.2 ft•lb)
Water pump housing cover bolt M6 3 10 Nm (1.0 m•kg, 7.2 ft•lb)
Coolant drain bolt M6 1 10 Nm (1.0 m•kg, 7.2 ft•lb)
Clutch cable holder bolt M6 2 10 Nm (1.0 m•kg, 7.2 ft•lb)
Speed sensor bolt M6 1 10 Nm (1.0 m•kg, 7.2 ft•lb)
Radiator hose clamp screw — 6 2 Nm (0.2 m•kg, 1.4 ft•lb)
Radiator fan bolt M6 3 8 Nm (0.8 m•kg, 5.8 ft•lb)
Radiator M6 1/1 10 Nm (1.0 m•kg, 7.2 ft•lb)
Radiator cover bolt M6 2 10 Nm (1.0 m•kg, 7.2 ft•lb)
Thermostat cover bolt M6 2 10 Nm (1.0 m•kg, 7.2 ft•lb)
Seat guide screw M6 2 7 Nm (0.7 m•kg, 5.1 ft•lb)
Throttle position sensor screw M5 2 3.5 Nm (0.35 m•kg, 2.5 ft•lb)
Air induction system pipe bolt M6 2 10 Nm (1.0 m•kg, 7.2 ft•lb)
Wire harness holder bolt M6 1 10 Nm (1.0 m•kg, 7.2 ft•lb)
Item
Thread
size
Q’ty Tightening torque Remarks
LT
LT
LT
LT
Item
Thread
size
Q’ty Tightening torque Remarks
Engine mounting nut (front upper) M10 1 67 Nm (6.7 m•kg, 48 ft•lb)
Engine mounting nut (front, front
lower)
M10 1/1 56 Nm (5.6 m•kg, 41 ft•lb)
Down tube nut M12 3 113 Nm (11.3 m•kg, 82 ft•lb)
Main frame and rear frame M10 4 56 Nm (5.6 m•kg, 41 ft•lb)
Engine protector bolt M6 2 10 Nm (1.0 m•kg, 7.2 ft•lb)
Drive chain tensioner bolt M8 2 23 Nm (2.3 m•kg, 17 ft•lb)