In this schematic the "Cotter Valve" is used most often.
Parts such as the Cam Shaft/valve (model N/p/r/s/t): Shim,tappet(t:2.7), Shim,tappet(t:3.25), Shim,tappet(t:2.85), Valve,intake are included in the Gsx600fu 1994 (r) Germany (e22) Cam Shaft/valve (model N/p/r/s/t) parts fiche.