My primer buld will pump up hard but when I run the engine for a while at WOT, then drop back down to idle, the engine quits. The bulb gets soft and I have to re-pump the bulb and choke the engine to get it started. Other than that the engine runs good. It just seems like it isn't getting fuel. Also, if I just idle around, it will quit. ( same behavior as above) Is this a fuel pump issue or could it be something else? The boat hasn't been used much in the past ten years, but I had a new water pump installed last year and a coil pack. Any help will be appreciated!