This Crankcase diagram displays the required parts for the Ls650 Savage 1988 (j) Usa (e03) Crankcase.
The lowest price component in this Crankcase parts-list fiche is the Gasket(5.8x13x1.2) (nas).
Some items from this specific schematic: O Ring(d:2.4,id:9.6), Bolt, Cover,crankcase Start, Bolt(10x323).