Parts such as the Carburetor: O-ring,2.4x29, Screw Set, Jet,slow #40, Needle Set,jet are included in the Cb250 2001 (1) Spain Carburetor parts fiche.
The lowest price component in this Carburetor parts-list fiche is the Screw,pan 4x14.
With a quantity of four pieces, the Screw,pan 4x8 is the most used part in the CARBURETOR diagram.