Parts such as the 2nd Air (model V E33): Valve Assy,2nd Air Reed, Holder,second Air Cleaner, Joint,3 Way, Stud Bolt are included in the Gsxr750 1997 (v) Usa (e03) 2nd Air (model V E33) parts fiche.
In this schematic the "Stud Bolt" is used most often.