Several of you have tried to help me with what I thought was a starter problem. I have removed the starter and now discover that the flywheel itself seems to be stuck. This is a Toro Z5000 Kohler engine. My previous thread, Starter Just Clicks, has gotten me to this point. I have removed the plastic blade cover and the flywheel will not budge. I am attaching a picture of the flywheel. The mower has been working great up until last week when all this happened. It seems that I am an idiot. I have washed my entire mower over the past couple of years and it appears to have rusted the flywheel some, but I don't think that is the issue. It is just surface rust. I would like to investigate further but afraid to. I can't see why the wheel will not move. Is it bolted down? Any suggestions would be appreciated. Thanks.