Hi Tortise always interested in getting /modifying anything to get things working again, I like the Suzy motor but the Mikuni on these is a dud. All the Honda vertical shaft I have worked on from memory have had the offset carby studs, that is not to say they are all that way.To me the simple way to set up a F/C 24 is to hunt up a F/C motor and rebuild it, cheaper and a lot less work that trying to fit a different motor to it