FMS 513

Hallo there Looking for info on Conyers battery charging generator, 6-12-24 volt. This one is powered by BSA 50 cc engine. Looking for info on the wiring for the generator output. Also interesting to know if some date code is to be found.? Motor is marked RS 50 cmg 22504 and the generator Type 350 E 5347. Former owner did totally strip this down to last part, and the motor is mostly there, but wires from the brushes in the dinamo to output plate are missing and no markings. Hope someone can help Best reg.from Belgium