Of all the components used in this assembly the Motor Assy,starting is the most expensive.
This schematic depicts all components used in the Gsxr1100 1988 (j) (e02 E04 E06 15 16 17 18 21 22 24 25 34 39 53) Starting Motor partslist.
The component with the lowest price in the STARTING MOTOR schematic is the Nut.