On Tue, 13 Jul 2010 10:49:26 -0700, "James H."
wrote:

On Tue, 13 Jul 2010 07:01:08 -0700 (PDT), m6onz5a wrote:
First check for a bent blade. If you replace the blade & it still
shakes/wobbles you bent the crank.

Thanks for that advice. I don't see a wobble in the blade but I did order a
new blade and I'll report back whether or not the crankshaft is bent.

I'll measure the distance from the blade to the ground in the East-West
position and then in the North-South position.

If it's off, I'll buy a new crankshaft and put it in if I can. That would
be a whole new set of pictures!

Caution: Replacing the crankshaft may require the judicial use of a
pry bar and a hammer. You have been warned.

If you bent the crank, go buy a new mower for 200 bucks.