I have a 2006 Electra Glide Standard Twin Cam EFI with 85,000 miles. Mods include, SE open breather, Vance & Hines mufflers, S&S Gear Drive kit with 510g cams and SE adjustable push rods. Recently the bike does the following: Starts, idles for about 1 1/2 minutes, starts to cough/sputter makes a spitting sound and blows air out of the intake then shuts off. Yes, I said "blows air out of the intake" enough air that I could feel it on my jeans (this was of course after removing the air cleaner)The bike immediately starts, but does the same thing again. Any help or suggestions would be greatly appreciated. Thanks

 

Check fuel pressure

 

Look for leaks inside the gas tank when the pump kicks on.