It's not sucking fuel when trolling crankbaits. It will run for about 12 min an sputter out an die. Reprime bubble an your good for another twelve min. I have no problem when running higher rpms it's just only when your barely in gear. I have put all new filters an check all hoses for leaks/kinks. It's an 2012 f50 model. It's got me dumb founded.