Parts such as the Master Cylinder: Holder, Cylinder Assy, Master, Screw,master C, Reservoir are included in the Gs500e 1983 (d) General Export (e01) Master Cylinder parts fiche.
twelve components are listed in the schematic for this Gs500e 1983 (d) General Export (e01) Master Cylinder .
In this schematic the "Screw" is used most often.