I just changed my sprockets and chain, before i did it my clutched worked fine. after reassembling everything my clutch will not disengage. I adjusted it and you can feel the resistance on the lever as if it is working but with the lever in all the way the wheel won't roll. ...you can spin the wheel if you try hard but there is a lot of resistance. i also tried turning the adjustment screw all the way in. when i did that, it still did the same thing when the clutch lever was pulled as far as it would go. is there a part inside after the pushrod that can fall out of place or something? i didnt take out the pushrod but it may have slid outward some. and, yes, the ball bearing is still inside the worm gear. any other ideas here?