1. Remove mud and dirt from the surface of brake master cylinder.

2. Secure the master cylinder in a vise.

3. Remove the pin which secures the reservoir tank to master cylinder, and then remove the reservoir tank and grommet.

4. Remove the cylinder pin with magnetic pick-up tool while pushing in the primary piston by screwdriver wrapped with tape.

5. Remove the C-ring. (Model with VDC)

6. Raise the claw and remove the piston retainer. Hold the piston retainer while working, because the piston may fly out with force.

7. Extract the primary piston assembly and secondary piston assembly straight out while taking care not to scratch the inner surface of the cylinder.

8. Use brake fluid to wash the inside wall of master cylinder and the piston assembly. Check for any damage, deformation, wear or rust. Replace the master cylinder as assembly if faulty.

9. Apply brake fluid to the inner surface of master cylinder and piston assembly.

10. Make sure that the inner surface of master cylinder and the piston assembly are free of foreign matter. Install the primary piston assembly and the secondary piston assembly to master cylinder, while taking care not to scratch the master cylinder inner surface.

11. Install the cylinder pin while pushing in the primary piston by screwdriver wrapped with tape.

12. Install the C-ring. (Model with VDC)

13. Install the piston retainer and secure it with the claw.

14. Install the seal to reservoir tank.

15. Install the reservoir tank to the master cylinder, and secure with pin.