Just bought the boat. Ran good on 2 outings with less than half full gas tank. Filled up tank and ran for 8 miles, fished, then ran another 3 miles and motor quit. Would not re-start. Had to be towed in. Three hours later, still would not start. Checked spark, good, fuel primer bulb was hard. Turned key and could hear fuel pump running for about 20 seconds. After it stopped, turned off key and disconnected output hose of fuel pump, got a good soaking of fuel on me. The next day went out to try more test. Motor fired right up and ran for about 10 minutes on the baffles, then it just quit. Would not restart. Could this be a bad fuel pump, trash in fuel line or tank, bad A-S vavle. Any help would be appreciated.