Some items from this specific schematic: Spring,throttle Stop, Spring,pirot Adj Scrw, Jet-main,#132, Cap-starter Plunger.
The most reasonably priced component used on the Ksf250-a3 Mojave250 1989 Usa Carburetor is the Screw-pan-ws-cros.
The Carburetor assembly is constructed from several parts from which the Carburetor-assy is the most expensive.