The most reasonably priced component used on the Pk50s Wallaroo 1993 (p) Belgium / 25k Clutch/driven Face is the Circlip,in,24.
This schematic depicts all components used in the Pk50s Wallaroo 1993 (p) Belgium / 25k Clutch/driven Face partslist.
On this parts fiche the Spring,clutch is the most specified component.