Everything in your ride will run fine on 12v. Perhaps you are having an AMP problem? Does the starter spin good? Do the headlights glow brightly? If yes then your lectric system should be Ok.
When you turn the headlights on and then start the engine do the headlights go out when the starter is engaged?
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />

professional bovine relocation specialist