On Mon, 11 May 2009 23:00:14 -0500, Steve Barker
wrote:

mm wrote:
On Mon, 11 May 2009 13:24:29 -0700, Oren wrote:

Pull the plug out to
examine if the piston is moving through the four strokes. (have a
compression tester?)

He doesn't need a compression tester for a lawn mower that was working
well a little while ago.

Since it's a one cylinder engine, you don't need to disable the other
cylinders, so just take out the one spark plug and put your thumb over
the hole. If you feel pressure pushing your thumb off every so often,
you have compression. That is, at least one valve is opening (but
probably both) and then they are both closing, and the piston is
moving up in the cylinder. If you have any compression, I'm sure you
have adequate compression, give that you hit a route, or root.


HE SAID the som bitch turns then stops! It's broke! duh!

If one plans to fix it, it should eventually have compression, duh.

And my post was a general statemnt about the need for a compression
tester on a lawnmower that was recently running well.