The most reasonably priced component used on the L130etf 1989 Upper Casing is the Washer, Plain (646).
A sample from the products for the Upper Casing include: Circlip (6a0), Bolt (695), Ybs67-8 Washer, Spring, Manifold, Exhaust.
On this parts fiche the Bolt, With Washer(6e5) is the most specified component.