On Fri, 15 Jul 2005 12:16:33 GMT, Sherman
wrote:

My 4 year old lawnmower gets hot and dies. I can mow for 15 minutes
and it coughs and sputters and then shuts down completely and will not
restart - for 15 minutes. Then it will start and runs another 10
minutes.

Seems to be a heat related issue. I cleaned out the debris and
replaced the spark plug. No change.

What could be wrong and how do I determine it?

Sherman

This is an outside possibility, but I had a lawnmower with a leaking
head gasket. Problem was it would leak only when the engine was hot.
The problem was getting worse and worse and I could not figure out
what was wrong. The gasket finall degraded to the point that that
when I happened to brush my hand ove the head, I could feel the hot
gases leaking from the head gasket.
Gary Dyrkacz

Radio Control Aircraft/Paintball Physics/Paintball for 40+
http://home.comcast.net/~dyrgcmn/