Caughing

I followed the chart with the directions to the CV stage 1 kit. I have a 97 FLSTC with an Evo engine screaming eagle air cleaner and rush 2.0 mufflers. The chart specified 46 pilot and 185 main and I installed them. I could not tune in the fuel mixture. The bike seemed to cough more as I turned the mixture screw out. When I turned the screw in completely the engine did not stumble. I changed to the other pilot jet which is a 45. I figured the 46 jet was too rich. It runs much better, though I can't get the bike to stop caughing occasionally out of the carb when letting off the throttle. It seems to be worse when it's cold out-symptoms of running lean. It also pops out of the exhaust. I replaced the seals and clamps on my pipes and exhaust. The only thing I can think to do is richen by using washers on the needle jet. Any good advice would be appreciated.

So your mean where the carb connects to the manifold?

Thanks for the advice. I doused both intake area with WD-40. I could not detect a leak. I replaced the slow jet with a 48 and it's running fine. It was just running lean. It seems that, depending on the weather, it would run better or worse.

I agree with Ken on the WD40. I use carb cleaner to test for air leaks.

Thanks for the advice. I replaced both gaskets in the intake area about two years ago. I went ahead and used carb cleaner today. I still couldn't detect a leak.

Today I was checking my battery and I found a torn vapor valve hose that exits the gas tank. Could this be leading to a problem concerning how the carb/engine performs? I plan on replacing it tomorrow.