Removing and installing oil restraining valve

1 - Threaded pin

2 - Spring guide

4 - Thrust spring

1. Remove cylinder head cover. Screw one hexagon head bolt, e.g. M 6 x 40, into spring guide from above. Undo threaded pin by two turns and pull out spring guide in upward direction.

2. Take out thrust spring and ball using a magnet. Clean ball seat, ball, thrust spring and oil duct thoroughly. The ball seat remains in cylinder head and must not be damaged.

3. Replace O-ring before fitting and oil lightly. Tightening torque for threaded pin:

31-17

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