Is this the disc you’re missing?
I’d love to see the owner manual on one of these motors and see just what it said
about the light plug in.
If you want to run any dc powered devices off that, a bridge retifier should be able to convert that ac to dc. Light bulbs it shouldn’t matter. Do you have the recoil cover? There is a disc shaped piece on the center of the cover that i don’t have on mine.
Prepare to be boarded!