I was using one of my 21" Honda HXR217TDA. I hit a large piece of steel and the machine jumped. I shut it off immediatly, but when I went to restart it, it vibrated likle crazy. So, i shut it down and used a differant mower. I came home and pulled the blades off, they were damaged pretty bad, but i tried to start it with the blades off and it would not start. Do you think i cutthe key? Or did i bend the crank?