This is my first Harley . i have had a issue with it in the fact that it does a lil sputter. a friend sayed its the harley hiccup? is this the norm? im not sure of the work done to it , but it has Screaming Eagle slip on pipes . and it seams to be running a lil rich from the looks of the carbon in the pipes . is the hiccup a product of it running rich? next thing im adding is a new air filter , so ill need to get the carb jetted right ?