The most reasonably priced component used on the Xr250r 1983 (d) E-3 Camshaft Valve is the Nut,tappet Adjust.
Parts such as the E-3 Camshaft Valve: Seal,valve Stem, Nut,tappet Adjust, Cotter, Valve, Camshaft are included in the Xr250r 1983 (d) E-3 Camshaft Valve parts fiche.
This E-3 CAMSHAFT VALVE assembly utilises eight Cotter, Valve(s) - the highest specified component.