hi, my 2002 fatboy with 3000kms. on the engine will occasionally die when coming to a stop, or coasting around a corner. before it dies i hear a pop or back fire out of the carb, and then it dies. it doesn't do it all the time, but it does once in a while. i'm running vance&hines long shots,high flow air filter and the carbs been jetted. does anyone know what the problem could be?thanks in advance for your input.paul.