I was riding on the interstate and out of no where the bike started lungeing. So I exited off the freeway and stopped the bike revved the engine to see if the rpm needle was bouncing and it was fine. So I went on my way and as soon as I pulled on to the road it was still lungeing. The throttle was steady but it felt like I was yanking it on and off. As I accelerated the more it would lunge. I thought it was the clutch so I gunned it in first and sure enough it was slipping. But here is my question, if it was the clutch would it be lurching like that? The rpm needle was steady but it felt like the throttle was going in and out. My bike is a 04 with 19,000 miles and the clutch lever is properly adjusted so that's not the problem.