Parts such as the Cowling 1: Cover, Handle Upper, Cover,handle Under 1, Nut, Spring, Label, Warning are included in the Ew50 2003 5wk1 Spain 1b5wk-300e1 Cowling 1 parts fiche.
The Yamaha COWLING 1 has nine products enlisted in the schematic.
The most reasonably priced component used on the Ew50 2003 5wk1 Spain 1b5wk-300e1 Cowling 1 is the Nut, Spring.