i built this today it has a 36cc scooter motor on it with an electric start , the e start is not hooked up yet i have the new battery just need to figure out the wiring , so the e start recharges the battery. I hope to add an electric hub on the front so i can switch back and forth from gas to battery power . i think i should be able to charge the battery for the electric hub with the electric start on the gas motor . any advice would be greatly appreciated