Disassembly of the fatty headshok.

the oil container,

The ammount and size of the shims is use to adjust the damping speed. One side is for in inverse the other for the rebound.

5 adjustement holes in the top cap control the damping speed. There is no lockout on this type.

Using a different thickness (viscocity) for the oil will also change damping speed. 2.5W-5W-7.5W-or 10W is used.

The air cilinder with the piston.

Customizing the Fatty or moto 120 suspension fork.

In found info concerning the " Instructions and setup for service headshok MOTO 120" .

The damper system of the headshok MOTO 120 seems to be the same as the headshok fatty  system.

Here are some interesting parts from it.

Here is some info on shim selection.