BACK WHEN I had SUZUKI 500, then 550s. Coworkers had 350-400 (both) and 500, cousin had 750 with chambers. What the kawis had was a stepped power band poor suspension and a too "light" frame. Roger Hull of Road Rider mag happily used one as a tourer. One half reputation was poor mods, hard riding and wide engine, on marginal tires. Treat it like a moded CZ 400 MX, fun. Expect too much, not. Worst is crank disassembly for seal replacement 750 with cambers had light switch Barnett clutch, couldn't leave stop without wheelie. Change fork springs, reshock, gusset here and there, ?