Parts such as the Electrical: Protector(170x95x3.0), Relay Assy,starting Motor, Rectifier Assy, Joint are included in the Lt80 1987 (h) Usa (e03) Electrical parts fiche.
The Electrical assembly is constructed from several parts from which the Unit & Coil Assy,ignition is the most expensive.
This schematic depicts all components used in the Lt80 1987 (h) Usa (e03) Electrical partslist.