I am changing out my power pack on my johnson 130. I read on some sites if you change your power pack you need to change both if not the old one can make the new one go bad. I think I only have one. Are they talking about the RECTIFIER & REGULATOR ASSY? Do I need to change the RECTIFIER & REGULATOR ASSY with the power pack? If I dont can the RECTIFIER & REGULATOR ASSY cause the new power pack go bad.