I had a 650GS in this afternoon to fit a Scottoiler to, very enjoyable. As with all modern FI bikes, it was a bodywork strip and airbox off job to get to a vacuum feed, but it all went well and works properly. I got to do a bit of fettling as well as I needed to make up a small bracket to mount it behind the regulator. The owner and me are both happy with how it turned out, it's always fun taking other people's bikes to bits