Of all the components used in this assembly the Igniter is the most expensive.
A sample from the products for the Signal Generator include: Generator Assy,signal, Rotor,signal, Igniter Unit, Screw.
eight components are listed in the schematic for this Gsxr1100 1991 (m) (e01 E02 E04 15 16 17 18 21 22 24 25 34 39 53) Signal Generator .