Problem solved! O.K. so after watching a couple of videos on 650 carb. cleaning, one of which showed the same problem I was having, I found that the screw that I removed, screws into a barrel assem. that acts as a guide for the end of the needle valve. Apparently after or as I removed the screw, the assem. moved backward. To move it back into position, I had to remove the air box. After removal, I was able to see the end of the guide and move it back into position in the throttle body. Holding it in position, I was able to reinstall the hex head screw.
Last edited by Phillip; 04-20-2016 at 12:35 PM.