twenty components are shown in this Cr250r Elsinore 1989 (k) Australia Carburetor Optional Parts Kit (2) exploded diagram.
With ten applications this Screw-washer,4x16 is the most specified part.
Some items from this specific schematic: Jet,main (#168), Needl,set.jet, Screw-washer,4x16, Jet,slow,#60.