I have a 2001 Yamaha G19 that I've purchased for my personal use. It worked until i cleaned the connectors on the controller and rebuilt the battery box. The control has 48v on both A1 and A2 and positive on the controller has 48v and the negative has ground. F1 and F2 both show ground. The three pin going to the 23 pin connector show black ground and red 12v and green 4.5v. I can't get the motor to run. So am not sure what i need to do from here..Any advice?