Parts such as the Second Air (e18,e39 F.no.vs52a-100508~): Cleaner Assy,air No.2, Spring, Rear Hose, Gasket,second Air Pipe (n (nas), Washer(6.5x20x1.6) are included in the Vs800gl 1995 (s) (e02 E04 E17 E18 E22 E25 E34 E37) Second Air (e18,e39 F.no.vs52a-100508~) parts fiche.
This Valve Assy,air Switching is the most expensive of the items that make up this Second Air (e18,e39 F.no.vs52a-100508~) assembly.