Of all the components used in this assembly the Carburetor-assy is the most expensive.
Parts such as the Carburetor: Needle-jet,n3ww, Jet-pilot,#40, Tube,3.5x6.5x330, Ring-o,main Jet Cover are included in the Kx250-l1 1999 Europe Fr As Carburetor parts fiche.
With six applications this Bolt-flanged-small is the most specified part.