The Honda GASKET KIT A has twelve products enlisted in the schematic.
Parts such as the Gasket Kit A: Gasket Kit A (nas), O-ring,47.5x2, Rubber,mount, Washer,sealing,6. are included in the Cbr900rr Fireblade 1997 (v) Singapore Gasket Kit A parts fiche.
On this parts fiche the Seal Valve Stem is the most specified component.