Mille Brembo Master Cylinder Issue

Hi All

Does anyone know how to remove the Inlet Valve on a Brembo Master Cylinder, currently fitted to a 02 Mille Factory.

Apparantly the return valve is behind it and need to check it.

Any ideas, is it a twist out, pull out or a dont bother it’s fooked?


brake or clutch? why do you need to check it?