Yamaha WR400F(M) Owner's Service Manual page 418

ENGINE REMOVAL
2. Install:
Lock washer 1
Nut (drive sprocket) 2
NOTE:
Tighten the nut while applying the rear brake.
3. Bend the lock washer tab to lock the nut.
4. Install:
Chain guide
Chain cover 1
Bolt (chain cover) 2
5. Install:
Engine oil hose 1
Bolt (engine oil hose) 2
6. Install:
Spring 1
Pin 2
Neutral switch 3
Bolt (neutral switch) 4
4 - 78
ENG
New
75 Nm (7.5 m · kg, 54 ft · lb)
8 Nm (0.8 m · kg, 5.8 ft · lb)
10 Nm (1.0 m · kg, 7.2 ft · lb)
4 Nm (0.4 m · kg, 2.9 ft · lb)