Some items from this specific schematic: Arrester-flame, Clamp,l=100, Nut,6m/m, Gasket,carberetor (nas).
The most reasonably priced component used on the Jf650-a5 Jetskix2 1990 Usa Flame Arrester is the Nut,6m/m.
The most expensive part in this assembly is the Manifold-intake.