stall out farmall A

My Farmall A stalls out when it gets warm/hot. Any suggestions? Fluid levels a-ok. Thank you!

Fluid levels arent the problem its either gas or spark. Easiest quick way is as soon as it stops check for gas by removing drain plug on the carb. If theres gas out of the carb the problem is either the condenser or the coil. Make sure when you buy a condenser it is either a Blue Streak or an Echlin. Same way with the coil as thers lots of bad replacement parts available not reliable at all.

Assuming it has a coil and points ignition, when it stalls go to the front and feel the ignition coil carefully. If it is too hot to keep your fingers on, it is very likely your problem. If the tractor has been converted to 12 volts, the coil needs to be marked "12v no resistor required", or it should be "12v for use with an external resistor, and it should have the resistor in the wire going from the Ignition sw. to the coil". It can also have a 6 volt coil and use an external resistor.
If it is 6v, it will have a 6v coil.
If 12v, and using an alternator (aluminum housing)
it is likely negative ground. Coil wire to the side of the dist housing connected to negative coil post. If generator it could be either way (Pos, or Neg Ground) the wire to the dist should match the ground type at the coil.
If it is a magneto, there is no voltage connected to the mag, just a wire that shorts the mag to ground to kill the engine. The mag makes its own electricity. To test the mag, use a good sparkplug (used is ok) and put it on a plug wire and lay it on the metal of the engine so you can see the spark jump. It should be white/blue and strong, yellow and thready is bad.
If it has fuel (as Gene says) it will run out of the drain and keep running well (Test for at least 30 seconds or a minute into a clean can).
Let us know what happens. Jim

If would help use help you if you gave us more info to work with.
Mag or distributor?? 6 or 12 volt system??
That said when it dies out jump off and check spark. It need to be a blue/white and jump a 1/4 inch gap or more. Next pull the carb drain plug and let the gas flow of a few minutes. Catch it to look for water dirt etc. Also carefully feel the coil. It should be very warm but not so hot as to burn you and the bottom should be flat not pushed out. If pushed out the coil maybe bad and that would cause it to do what it is doing

The last A that stalled while working had a stuck viton needle valve in the carb inlet.A squirt of gas from a pump oiler caught that one.

The presence of gasoline in the carburetor bowl may not mean that you have enough flow to sustain operation. You need to test the flow by removing the plug and catching the gas, and verifying that it will continue to flow for a good twenty seconds. you could have a restriction that will starve it out after some time of operation.