Parts such as the Cam Shaft - Valve (model J/k/l/m): Camshaft,exhaust, Shaft,valve Rocker Arm, Arm,valve Rocker, Screw,tappet Adjusting are included in the Gsx600f Katana 1989 (k) Usa (e03) Cam Shaft - Valve (model J/k/l/m) parts fiche.
On this parts fiche the Cotter Valve is the most specified component.
The most expensive part in this assembly is the Camshaft,intake.