A Merc 40 that we just did a service on is now bogging down and losing fuel pressure at idle and WOT. Normally only after the engine is hot (not sure if related). The fuel primer bulb will go limp and if you hear the engine bogging down, you can pump the bulb by hand real quick and it will eventually gain pressure again and run fine. If you don't pump it- the engine will die out. Engine: 2001 Merc 40 2-Stroke Service that was done: Full carb clean/kit, fuel pump rebuild, new spark plugs, new inline fuel filter Possible causes: One tank of gas that was put in before this started happening, but after the service above, was from a sketchy gas station in the middle of nowhere, could be bad gas? Fuel water seperator was emptied when this started- and the gas was very cloudy. New fuel/water seperator was put in, but it's still doing this. Gas tank has since had 3 new tanks of fuel mixed in but was never pumped out. Possible solution due to the above: bad fuel maybe made it to the carbs and clogged the high speed jets? Maybe the fuel pump rebuild kit was bad from quicksilver when we did the service? Hole in fuel line somewhere? Clogged fuel line vent at the aluminum tank?