Hi. I have a Mitey Mac model 8B with an Onan engine in it. Replaced the flywheel, and starter, and now it won't turn over at all. No noise when the key is turned. The engine was out of the loader when we replaced the starter and flywheel. We put it back in, and it does NOTHING. There IS 12 volts to the starter, and the battery is fully charged. The ground cable is okay, no wires pinched, all are hooked up correctly. We put in our old starter, which still works, but has a torn off gear guard, and that did nothing as well. Both of the starters work just fine. Could it be the ignition switch? Please Help ME!!!