dave j wrote:
I put a 45 pilot in it set @ 2-1/4 turns on the screw ]

Your mileage is gonna suffer big time with that pilot jet, unless there is an air leak which would balance it out. But of course having a leak is no good either. How is your accelerator pump ckt set? Carb cough here and there is normal, especially and more so on a cold engine since gas does not atomize as well. Also blipping will cause a cough.Also the main is too big, I can't think of anyone using that big a main with any after market air kit. I would suggest to check for leaks around the manifold to heads connection, there have been known leaks there straight from the factory too. usually having to go to that size pilot jet is due to a leak so the larger pilot jet compensates for it, but expect mpgs in the 30's. There is absolutely no reason not to be able to get 50mpg at a cruise speed of 65 to70mph. I have seen a few riders with who have done a air/fuel monitoring run and cruise at 14:1 ratio yields 50mpg, I get 50mpg and low 40's city. I've used this sites air/fuel numbers to dial my carb in, for each ckt I use the leaner side of the spread to still have good mpg's: http://www.daytona-sensors.com/tech_tuning.html