Yamaha WR250R Service Manual page 41

Item
Timing chain guide bolt
Plate (impeller shaft side)
Oil filter element cover bolt
Oil pump bolt
Oil pump cover bolt
Oil strainer housing bolt
Delivery pipe bolt
Throttle body joint clamp screw
Air filter clamp screw
Exhaust pipe nut
Muffler and exhaust pipe
Muffler bolt
Muffler protector bolt
Spark arrester bolt
EXUP cable pulley double-nut
EXUP pully bolt
EXUP servo motor bolt
EXUP servo motor cover bolt
Bearing cover plate bolt
Crankcase bolts
Crankcase and holder screw
Timing mark accessing screw
Crankshaft end cover
Crankcase cover bolt (left)
Crankcase cover bolt (right)
Engine oil drain bolt
Crankcase and nozzle bolt
Primary drive gear nut
Clutch spring bolts
Locknut (push lever adjusting screw)
Clutch boss nut
Thread
Q'ty
size
M6 4 10 Nm (1.0 m•kg, 7.2 ft•lb)
M6 2 10 Nm (1.0 m•kg, 7.2 ft•lb)
M6 3 10 Nm (1.0 m•kg, 7.2 ft•lb)
M6 2 10 Nm (1.0 m•kg, 7.2 ft•lb)
– 1 2 Nm (0.2 m•kg, 1.4 ft•lb)
M6 2 10 Nm (1.0 m•kg, 7.2 ft•lb)
M6 1 10 Nm (1.0 m•kg, 7.2 ft•lb)
M5 2 3 Nm (0.3 m•kg, 2.2 ft•lb)
M4 1 2 Nm (0.2 m•kg, 1.4 ft•lb)
M8 2 20 Nm (2.0 m•kg, 14 ft•lb)
M8 1 20 Nm (2.0 m•kg, 14 ft•lb)
M10 2 42 Nm (4.2 m•kg, 30 ft•lb)
M6 3 7 Nm (0.7 m•kg, 5.1 ft•lb)
M6 3 12 Nm (1.2 m•kg, 8.7 ft•lb)
M6 2 6 Nm (0.6 m•kg, 4.3 ft•lb)
M6 2 10 Nm (1.0 m•kg, 7.2 ft•lb)
M6 2 6 Nm (0.6 m•kg, 4.3 ft•lb)
M5 2 2 Nm (0.2 m•kg, 1.4 ft•lb)
M6 6 10 Nm (1.0 m•kg, 7.2 ft•lb)
M6 12 10 Nm (1.0 m•kg, 7.2 ft•lb)
M6 2 10 Nm (1.0 m•kg, 7.2 ft•lb)
M14 1 2 Nm (0.2 m•kg, 1.4 ft•lb)
M32 1 2 Nm (0.2 m•kg, 1.4 ft•lb)
M6 11 10 Nm (1.0 m•kg, 7.2 ft•lb)
M6 12 10 Nm (1.0 m•kg, 7.2 ft•lb)
M12 1 20 Nm (2.0 m•kg, 14 ft•lb)
M6 1 10 Nm (1.0 m•kg, 7.2 ft•lb)
M16 1 80 Nm (8.0 m•kg, 58 ft•lb)
M6 5 8 Nm (0.8 m•kg, 5.8 ft•lb)
M6 1 8 Nm (0.8 m•kg, 5.8 ft•lb)
M16 1 75 Nm (7.5 m•kg, 54 ft•lb)
2-16
TIGHTENING TORQUES
Tightening torque Remarks
LT
LT
LT
LT
LT
LT
LT
Lock
washer
use
Lock
washer
use