Are their any nice one's around in good condition still & what would the going rate be for these now providing its not de-reg?.The models in particular im referring to came out with deep dark blue colours and red stripe's-not sure exactly what the colour's proper name is but nothing like the new Yamaha blue...the FZ 400 had a top half fairing only with a twin round headlight front from about 1984-1987 and was quite a high revver (16 valve inline 4?) while the FZ 600 had a full fairing and round twin headlight front and was more of a sport/tourer type having basicly the same mtr as an XJ 600.From memory their wasn't really many around even way back then,most were prob jap imports.......maybe I shouldn't bother as my old rz 350 didn't really impress me-It just looked cool.