Parts such as the E-13 Carburetor: Needle Set,jet, Holder,needle Jet, Jet,main(#78), Float Set are included in the C90k3 General Export (kph) E-13 Carburetor parts fiche.
The most reasonably priced component used on the C90k3 General Export (kph) E-13 Carburetor is the Screw, Pan, 3x12.