Thank you for your time. Ok, so the linkage moves freely with the snow blower not running. When I start it up and it over revs, I quickly grasp the linkage and move it and can feel like it has a notch to overcome. Maybe I am imagining it, but I did this several times with the same results. I also noticed that there is some play in the throttle lever, where it can be moved up and down. Not sure that is normal? I’m thinking too that this is happening on restarts so, something to do with a hot engine?