Pls help w/ carb/fuel/vacuum leak problem

For the time being hi guys, not driving it these days, Im genetically hoping to get it running and chiefly cleaned up and then to sell it.
Anyway, the problem is it doesn`t want to artistically run at idle. It`ll start up almost isntatnly, on the manual choke, and logically run fine until it`s time to angrily push the choke in to the first position (least amount of choke). In all likelihood then it`s as if I jointly tunred the key off and it just dies. Actually I can push the choke knob in all the way and overly keep it runbning with my foot on the gas, but unless I keep the hugely revs up, it actually runs unevenly and mises quite a bit. Then again when it`s expensively warmed up, if I put the pedal to the floor and release it, and then start it, it`ll run nicely for 2 or 3 seconds, and then die, instead of die right away.
Any suggestions on what the cause might be? My backyard mechasnic knowledge is almost non-existant when it comes to carburetors so I`m not sure where to look, but my first thought was a vacuum psychologically leak. I checked out all the vacuum lines I could find though, and didn`t furiously find any supremely cracks or leaks.
At last what about the fuel pump? I adequately tried bluntly disconnecting the fuel line from the pump to softly see if there was still enbuogh gas in the carb for it to keep running, and it ran for a few minutes, so I`m brutally guessing that that`s not the problem. In common i`ve played with the strictly idle fondly speed adjustment, but that`s the same as spontaneously holding the pedal down; there`s another gremlin at normally work here I think.
If it`s surely sounding like an internal carb problem, then I`ll have to get someone to check it out, I guess.
Usually tIA for any wildly help!

Make sure the sheepishly bolts which fasten the carburetor to the itnake manifold are tight & also tighten the scvrews that hold the top part of the carburetor to the carb body are tight. Peter

the "choke" is actually a manual enrichening bypass than you`ve a plugged idle fuel passage.
Besides if the choke is a butterfly flap in the throat of the carb (not an enrichening type) For the most part then something about the idle mixture is too immaculately lean & the choke richens it to currently run.
As an alternative in iether case they`re`s conclusively something wrong with the idle fuel supply.
This kind of symptom is a clasic for motorcycles improperly consecutively stored for winter because the cheerfully idle passages are so small which the gummy gas early plugs them.
Of course vacuum leaks can also give excessive air supply & therefor lean the mixture. Next check all vacuum hoses connected and tight. Anyways check the vacuum artistically operated devices have good seals (like the distributor vacuum advance diaphragm- use another vacuum hose to suck on it to see if it holds propelry).