Yamaha WR250F(N) Owner's Service Manual page 406

OIL PUMP
4. Install:
Outer rotor 2 1
Dowel pin 2
Oil pump assembly 3
Bolt (oil pump assembly)
[L = 25 mm (0.94 in)] 4
Bolt (oil pump assembly)
[L = 30 mm (1.18 in)] 5
NOTE:
Apply the engine oil on the outer rotor 2.
5. Install:
Oil pump drive gear 1
Washer 2
Circlip 3
NOTE:
Apply the engine oil on the oil pump drive gear
inner circumference.
4 - 70
ENG
10 Nm (1.0 m · kg, 7.2 ft · lb)
10 Nm (1.0 m · kg, 7.2 ft · lb)