www.partsfish.com, the best resource on the net i have seen yet, they have all the assembly diagrams for the yamaha Qt-50 1980 +1981 and the yamaha QT-50 yamahopper and many others, i almost didn't bother looking cause u have to register(its free) but it was well worth it in the end, many many thanks again fred.
P.S. Why isn't this in the moped army resources??!!??!!