I have a 2004 Honda VTX 1300 R with only 3000 miles on it. I admit, I do not ride it as much as I should. Everytime I do ride it, I run all the gas out of the carb. The last month or so, when I start it and run it, it stutters and gasps when I apply full throttle in almost any gear. I have checked and replaced the plugs and just today filler her up with nice new gas. Since I owned it, I added V and H pipes and rejetted when I lived in Houston. Now, I live in El Paso which is higher elevation but it has not always dones this. Any ideas? Think carb is gummed up?