On two separate occasions this season my 1998 200 EFI has stalled during idle. It starts running rough for a few seconds then stops.It happened during trolling, after running along at idle for at least 15 minutes. In order to get it going I had to squeeze the fuel bulb a few times. I do a lot of trolling and this has only happened twice, which seems strange. Otherwise the engine starts easy and runs fine at all speeds. I have visually checked the fuel lines and connections from the tank and they look OK.