I'm looking into getting a billet flywheel for my 420 predator but I have to have a charging coil. It would be difficult to run my fuel pump and oil pump system off just a battery and would be stuck with limited run time. Ive looked at getting an external alternator from a tractor but thats extra machining, fabrication and cost. Is it possible to modify a billet flywheel like an ARC one to still use the factory charging coil ?