Parts such as the E-11 Starting Motor: Nut,thin 6mm, Screw,pan 5x115, Sp,start.clch.rol, Gear,start.clutch are included in the Cb650sc 1984 (e) E-11 Starting Motor parts fiche.
The E-11 Starting Motor assembly is constructed from several parts from which the Motor,starter is the most expensive.
The Nut,thin 6mm is the cheapest item from this partsfiche.