So about two weeks ago I broke a clutch cable and had to ride it home by lightly popping it into gear. I put a new one in and found that when I put it into second gear and cracked the throttle just a bit it would buck foreword and rev in short spikes of power like it did not want to be in that gear. I took it all apart , checked for wear, grooving on the clutch basket and even replaced the star and put a pro-shift on it. Still no second gear!!!! I'm I missing something here? Could this be some sort of air leak, wiring, or fuel issue? If so, why only second gear?