On Sun, 16 May 2004 13:45:19 +0100, "Stuart" wrote:

Briggs & Stratton petrol engine.

The engine works fine for various lengths of time (up to 30mins) and then
suddenly dies out. when this happens it sucks its own plunger in! (the
plunger being the rubber device used to prime the motor before starting) As
soon as the plunger is released the motor will restart! My original thought
was that the air filter was blocked, however removing the filter has made no
differance.

Blocked hole in petrol filler cap.

AJH