Okay I was going to introduce myself before posting but I really need help right now. I have my bike setup. I rebuilt motor and had it working. I stupidly forgot the locking bolt on the pressure plate and my clutch loosened but kept running til I got home. When I tried to ride it later it wouldn't start and I realized what I did and went and tightened it back up, tried to ride it and it when I released the lever...nothing. when I'm walking the bike it disengages, but when I'm pedaling it won't disengage. I took the clutch apart and put it back together and same thing. Could the spring on the clutch shaft be too tight or to loose and cause this problem? If not what else could it be?