On this parts fiche the Cap,cable Sealing is the most specified component.
Parts such as the Carburetor: Valve Set,throttl, Float Set, Needle Set,jet, Gasket Set are included in the Pk50 Wallaroo 1990 (l) Belgium Carburetor parts fiche.
The Carburetor assembly is constructed from several parts from which the Carburetor Assy. is the most expensive.