The recoil start on my motor quit engaging the flywheel when I pull it, today. You pull the rope and it spins freely, then retracts fine. I took it off, seems that the screw that holds center piece between the two dogs is loose. But, if I tighten it it locks the pull start down and won't spin. Take the screw out and it has a spring under it. Not sure if that is the problem or not.