Did you plug the vacume line that goes to the gas tank that comes from below #2 carb when you tested?
I just watched your video. Sounds like its running on two cyclinders. Might want to check the 2-3 ignition coil, leads, plugs, and plug wires.
I had done a valve lash check one day, drove my 900 to the shop, checked lash, put it back together and it would not fire. Went through everything, two hours later i decided to change the plugs in a whim, even though they had no sighns of fault. Soon as i stuck the plugs in she fired right up...still baffled by that one to this day.
Last edited by IdleHandsTX; 07-31-2013 at 09:18 AM.