I have a ZD 326 with 52hrs on it. I got some bad fuel and now I have no power while mowing. It runs fine until I start mowing then no power. I drained the fuel, changed both fuel filters and still no change. Also blew back into the tanks. what kind of pressure does the elec fuel pump put up if its good? what else can I do? my grass is knee high now may have to bush hog first. lol. Any help would be great. Thanks