Parts such as the Cowling 1: Rivet (5m0), Screw, Binding Head (716), Rear View Mirror Assy(left), Cover, Lower are included in the Ca50s 1986 Riva Cowling 1 parts fiche.
The Cowling 1 is made up of components including this Cover, Upper which is the most expensive.
This COWLING 1 assembly utilises two Screw, W/washer (14t)(s) - the highest specified component.