A sample from the products for the Carburetor include: Screw, Jet, Main (no.120), Carburetor Assy 1, Jet, Main (no.130).
On this parts fiche the Washer,spring is the most specified component.
twenty-eight components are listed in the schematic for this Pw80 1999 4bc9 Austria 294bc-300e1 Carburetor .