I just bought a 2007 rsv it acted as you described sometimes it fired right up, sometimes nothing at all.i would turn key back and fourth raise and lower kickstand and eventually it would start. I took the starter button apart cleaned the contacts put it back together, same thing, intermittent starting. I was about to work on the starter relay when I had a thought. When I bought the bike I was given 2 keys. One looked brand new the other had normal wear. I had hung the new one up in my key rack and was using the worn one. I started using the new looking key and have not had it happen since. I hope this helps. Now I know why the guy sold it so cheap lol. 2007 16000 miles $ 7000.
