The lowest price component in this Air Cleaner parts-list fiche is the Screw Tapping5x25.
In this schematic the "Tapping,5x20" is used most often.
Parts such as the Air Cleaner: Diaph.contl Valve, Plug,brthr Tube, Case,b.air/c, Seal,air/c Case are included in the Cb1300 2008 (8) Usa Air Cleaner parts fiche.