I've got a question about the ignition switch in my 149. when I bought it, the guy said the switch was shot, and gave me another. I can't get either one to turn over the engine. had it tore down, cleaned up and repainted, and believe the ground is good and solid. I can jump across the voltgage regulator, and it fires right up, but get nothing at all from the key switch. what should I be checking from here? thanks, mike