The yamaha 650 was the bike I wanted back then! I remember it being a vertical twin like the Triumphs though,not a 4 cyclinder.Maybe it was an XS? Anyway,thought that bike was wicked when I had my 250 stroker. I also fancied a H1 kwacker just for the "newspaper reports of frightening power".How things have changed since then! The CB750 was also my envy but the bike that knocked me out was when the Z1 was released. 900cc with a massive 80bhp. I sat on it and fell in love but alas never got to ride it. The baby Z650 however was considered a better bike in the handling stakes though.