Well unfortunately I lost my work space and I'm living at my girlfriends place and the moped is in storage. For some reason I don't think she would appreciate metal shavings flying around her kitchen. Ha so I'm mostly scouring the forums and reading the books to figure out as much about port mapping timing cutting and so on.
But rereading some things and deciphering the Dutch language leads me to believe it will be an upgrade regardless.
But as far as crankcase volume, maciek, have you done case work where you have left the bearing oiling holes intact and cut most of the metal out? I saw that purdy one you did. Would it be a big difference in volume with a 43mm kit?
Sorry for the rants and question my moped and wrenching talk is limited to this website. Not many riders up in Montana.