The component with the lowest price in the STARTING MOTOR schematic is the O Ring(d:3,id:24.5).
Parts such as the Starting Motor: Shim Set, Bolt,starting Motor Housing, Motor Assembly,starting, Housing Set,starting Motor are included in the Gs850g 1984 (e) (e01 E02 E04 E06 E22 E24 E25) Starting Motor parts fiche.
The Starting Motor assembly is constructed from several parts from which the Motor Assembly,starting is the most expensive.