Trying to get inlaws wheeler going. Started out with replacing the starter which burned out. I remember the machine backfiring quite often as it was started previously. After replacing the starter, I started the machine, it backfired and engine ran backwards. I had the CDI checked out and even tried a new one. Have read all previous forums on the subject and No, the key is not sheared off. I have moved the Stator Plate in both directions and can get it started, but still runs backwards. I am at my wits end.