Hi all. My neighbor has a MH 44 (I think) That has no spark and he asked me to go over it. I agreed but I have little knowledge on the 6V system. One red flag was that he's been trying to start it with a 12V battery because he had one and doesn't want to buy a new 6V Bat. until he knows it runs. My question before I go too for is will that work? Could the 12V have fried the coil?