I put too much oil in my push mower and now the pull cord has no tension. Any ideas?
After putting in too much oil, my 2-3 yr old Toro push mower started up but was smoking. I turned it off then decided to try and restart, but the pull cord wouldn't move much. I gently pulled it a few times, and now it is loose and I can't start it at all. I have already drained the oil and replaced the air filter (which got oil all over it), but still no tension in the cord. Any ideas on what's wrong and how I can fix it?

Take the spark plug out and then try pulling the starter rope. This will test the starter pull rope. If it does spin the motor and oil comes out the plug hole, you have flooded the engine with oil. Spin it until all the oil is clear, then put the plug back in and try it. If the motor will not spin with the plug out, you have a serious engine problem.
Another probability: The pull cord may have jumped off the pulley and hung up. Take the rope starter off the engine and free it up.
it's clean the carburetor, an air nozzle to blow it out, then the pull cord will work. Sounds weird, but that's the ticket.
depending on how long you ran it with to much oil the cylinder wall might be glazed if that's the case your compression will be greatly diminished