My motor has a hard time after I have stopped on the sand bar or dock but not when I first get in the water. I notice that the bulb isn’t fully hard but once I pump it hard it still takes a few times for it to stay running. Now it will start but dies immediately before I can shift in gear and get moving. Is there a check valve or fuel regulator on this model that I’m missing or is it just the pump that keeps the motors prime? This is a 4stroke EFI model. Any help is appreciated. 