I will say something about these new machines. I haven't started mine since summer. Got home Wed. and have been plowing and cleaning the yard as I was away hunting for two months. I decided to move mine to a better area for protection so uncovered it and got the key. Put the key on, thought for a minute "Do I need to choke this thing?" and hit the yellow switch. It did it's self system check and stated on the first try. Amazing!