Parts such as the Top Cowling: Nut, Spring (6a0), Seal, Washer, Plain (646), Mark, Cowling are included in the Pro 50g 1988 Top Cowling parts fiche.
The Yamaha TOP COWLING has fifteen products enlisted in the schematic.
With a quantity of nine pieces, the Nut, Spring (6a0) is the most used part in the TOP COWLING diagram.