Bo.. The GP50 is what I use to describe our 9hp. There are several manufacturers of this type of motor. Just wanted to point that out.. Our KTMC GP50 appears to be slightly different than yours in that I can see your chain guard is different and your version comes with a 10T . O yes.. And some extra parts where it seems they should not be. I think that was you that reported some extra parts where they were not needed.. . Other than that, externally, they look almost the same.. Anyway.. Just wanted to point that out and also to ask you for feed back on that KTMC GP50 pipe I sent you.. Let me know if it helps you to deliver the mail. Feed back will be appreciated.. Let me know.. And.... Enjoy the ride..