a lot of good suggestions, check them first then try this. most of the fresh air kits give you a huge main and don't bother with the pilot. the basic rule is if it pops on the way up, it's rich. if it pops on the way down its lean. simple as that. the pilot circuit is lean you have a closed throttle on decel which means the needle is cutting off main jet flow and draws mostly off the pilot. you can turn the fuel screw to about 5 turns out but you have to watch cause you start loosing spring tension at about 4. or go get a larger pilot jet. and reset your fuel screw. try it in steps. jump 3 points on the pilot jet to a 38 (a stock pilot should be a 35) you can probably start with your fuel screw around 2 turns out and adjust it in or out in quarter turn increments. also pay close attention to the amount of oil on your air cleaner has on it. the one thing that you have to remember is that you will get a pops occasionally just because its a v-twin. but if you can' find a jet locally hit me up i stock them.