I'm not finished with my current project, but I'm already looking foreward to the next one... I'm thinkin' about using a fourstroke motor from a honda dirtbike... like from an xr 80 or xr 100. Has anyone around here used one of these for a build yet? I'm just thinking about how nice those things would work with the kickstart and a 5 speed transmissions already there! I've seen some used complete and running bikes on my local craigslist for cheap. Any thoughts?