OK. Put a 3/4" OD x 5/8" ID x 1/16" o-ring in there and it was clear from the get go after starting the bike that something was different. Inspecting the carb end of the intake revealed a very poor sealing surface so I cleaned that up and got it nice and straight and flat. I did not run well and was acting like it was partially choked. Took the .080 jet out and put the .070 in and it acted like before where I couldn't quite get full throttle and it would die when hot, but definitely ran better than .080. Will work on it more later today if I get a chance.