Quick fuel m-600

So back in May 16 I rebuilt my engine 351 on my 1994 ski and went with the quick fuel m-600 and dui setup and the boat has ran strong ever since until today. I pulled it out run it for the first time this season here in Texas and the engine starts , won’t iddle but will allow higher rpms up too 4000, it runs for a few minute or less and bogs down and just dies. Funny thing is it starts right back up with a little pump of the throttle and does the exact same thing. So far to trouble shoot I drained the fuel water separator into a clear bottle and the fuel was yellow and smelt good with no water at all. I disconnect the fuel line to the cab and tested the Manuel fuel pump which is also new with the rebuild in May 16 and it spit fuel out fine into a bucket . I’m stumped on this one the only thing I can see to cause this is a clogged jet or stuck float something internally In The carb itself . I last started the boat in December on the hose and rain it for 10 mins or so before I put in storage . I guess my question here is is the fuel we are buying at the pump really that bad for these carbs to cause issues in 5 months of sitting. I’m stumped and have never had a fuel issue in that short amount of time. I even checked to make sure something didn’t crawl up in the fuel tank vent valve and clog up causing a vacuum . I know there are a lot knowledge on this site so any suggestion before I tear this carb off and send it in would be great . It’s 90 here this week and it’s time to get out I the water

You say it won't idle.

Is this because it's dumping too much gas down the carburetor or is it running out of gas.

Why don't you hook up a small temporary tank to the fuel pump and run it and see what happens.

It'll tell you if it's a tank/suction hose problem or a pump/carburetor problem.

And...............remember, when you think it's a fuel problem there's a good chance it's ignition related     

Hard to tell from your description, but I'd look for vacuum leaks around the carburetor mounting gaskets too.