The Gsx550ef 1984 (e) (e01 E02 E04 E16 E17 E18 21 22 24 25 26 34 39) Cam Shaft - Valve consists of twenty pieces with the Camshaft,intake being the most expensive.
Some items from this specific schematic: Valve,exhaust, Spring Set,valve, Camshaft,intake, Seat,valve Spring.
On this parts fiche the Cotter,valve is the most specified component.