The spring in the pull-start broke when a potential buyer was trying to start it. I discovered this by removing the pull-start assy. and inspecting it. I ordered an new spring and intalled it. The pull-start appears to function properly with the new spring, pulls and recoils seemingly correctly off the motor. When I put it on the motor, it seems to slip, like the claw are not engaging properly. I believe I put it back together exactly hoe I took it apart, everything in the same position. When I pull the rope it come out, moves the ?-flywheel-?, a little, but mostly just the pull-start moves, then does not recoil. I removed the pull-start assy, moved the motor back to the same position, check the pull-start function, seemed ok, re-installed, same problem. What am I missing or doing wrong?