The Gsx1100g 1991 (m) (e01 E02 E04 15 16 17 18 21 22 24 25 34 39 53) Starting Motor consists of fourteen pieces with the Motor Assembly,starting (si being the most expensive.
A sample from the products for the Starting Motor include: Holder Set,brush, Motor Assembly,starting (si, O-ring, Spring,brush.
On this parts fiche the Spring,brush is the most specified component.