I have a 5 wire alt on 1994 volvo penta 7.4 carb engine with electric choke. I going to a 140 amp 1 wire alt. I have the fuel pump connected to the oil sending unit. I have the purple wire going to the coil and the purple/white going the carb elect choke. One wire is going to the batteries(on a larger wire) and 1 wire going to ground. All the other wires I'm using. In the diagram that is attached. The circled one in blue is my old prestolite alt. Everything to work ok. It starts and cuts off and the fuel pumps cuts off. My 2 problems are that the choke pulls off to quick and after maybe 50 hrs of runtime I keep burning out the regulator. What could the problem be?