i know of one in a go kart ,it,s a 60 k drive to chase it up but when u say u want an engine that doesn,t need work , that would mean it has been restored , or is in good origional cond. if so that would mean it,s probably in a restored or good origional bike , i think it would be hard to find any pre 75 engine like that , and then to get it seperate from the bike , however probably not impossible , what is the budget in case i get to see the go kart owner ?regards steve