Parts such as the Camshaft/valve: Shim,tappet (1.67, Shim,tappet (1.87, Shim,tappet (2.60, Shim,tappet (2.35 are included in the Vfr750r Rc30 1988 (j) Belgium Camshaft/valve parts fiche.
With thirty-two applications this Cotter,valve is the most specified part.
The component with the lowest price in the CAMSHAFT/VALVE schematic is the Circlip,17mm.