Parts such as the Carburetor: Screw Set, Jet,main #62, Packing,carbureto, Pkg,carb (choke S are included in the Gsv190a\n5af\14z2d403 Carburetor parts fiche.
Of all the components that make up this Carburetor the Screw,pan,5x6 has the lowest price.
In this schematic the "Packing,carbureto" is used most often.