Parts such as the Rear Master Cylinder: Screw, Pan Head, Washer, Lock, Pin, Cotter, B0lt, Uni0n (31a) are included in the Tzr125 1990 3pa2 France 203pa-351f1 Rear Master Cylinder parts fiche.
The Yamaha REAR MASTER CYLINDER has twenty-nine products enlisted in the schematic.
The most expensive part in this assembly is the Rr. Master Cylinder Assy..