Thank you for the reply. Some people tell me because of a voltage drop, it wouldn't charge properly. My existing battery charges with the acc. installed now, at 15-16v. I am adding a radio and GPS this winter.
Keep in mind that the alternator on that motor is pretty weak. That's why there's no regulator. It doesn't put out enough juice to need one. What kind of system draws do you have? Regarding wiring, the isolator will come with instructions.