After recently putting back together my Sears GT 917.255.914 model, I have come upon a new problem. Keep in mind that this mower had rolled twice, but since I have gotten it going again I have mowed my yard two times with it. Well almost two times. I was almost finished when the engine started to decelerate then it shutoff all of a sudden. It seems that it gets fuel, but maybe not enough? It has a pulse pump to feed it fuel but I am not sure that it is getting enough. Before the pump is an inline filter that may be the culprit. The gas does come thru the filter but maybe it is partially blocked. Or could it be that the pump is not fully functional. The vacuum hose to it works and there was fuel in it when I took hoses off. Also is the something in the carb itself that could be the problem? A clogged spot or screen? Like I said, it will start up but will not handle the mower engagement or when not engaged will run for 30-45 seconds then shutoff.