I was out today and she was running great for about an hour just cruising up and down the waterway when all of a sudden she started to lose power. Then she jumped right back where she was before. Then about 2 min later she started to fade and the fuel bulb went tight (squeezed together), and she cut off. So I went back and pumped the bulb and then started her up again. Went for about 3 more min and the same thing. This happend over and over for about ten min then nothing for about a half hour when we got in. Not sure what to make of it. Any ideas???