Parts such as the Carburetor: Heater Comp., Jet,main #110, Gasket Set A, Piston Comp.,vacu are included in the Cn250 Helix 1988 (j) Italy Kph Carburetor parts fiche.
Check out any of the thirty-five Carburetor components enlisted.
Of all the components used in this assembly the Carburetor Assy is the most expensive.