Poor gas in carb it starts and runs for a few seconds and then quits

Try a short burst of starter fluid into the carburetor and promptly pull starter. If it runs for a couple seconds and quits then the carburetor is not delivering fuel.

If it doesnt run on starter fluid then either flooded, insufficient spark, or poor compression / crankcase leak.

VERY COMMON problem with gas engines.

I recommend starting all your gasoline using machine ever month or two. Let them run a few minutes. Same with cars/trucks.

Start you r car/truck every couple months and drive forward and backward several feet as well.

If you have a gas shutoff valve, turn it off and run engine till all gas is out of carb before storing.

Gas turns to a hard lacquer is sitting too long. remove air cleaner covers, Pour some real good (strong/thorough) carb cleaner in carb and leave sit over nite. If that doesn't work, do it another nite. If not working yet, you may have to take carb off and open it up. Be careful there are little tiny parts in there.

carburetor needs cleaning. sounds like the Needle valve is not doing its job

Sounds like fuel starvation, always start with simple things first, replace the fuel filter in the fuel tank, check the fuel hose up to the carb for signs of leaking.

Probably gummed up carb. If you don't want to try to rebuild the carb, then try adding a really good carb / fuel injector cleaner to the gas/oil mixture. don't forget to use a very small amount, then run the motor as fast as it will go for short periods of time to try and dissolve the gumming in the jets.

Sounds to me like you have a plugged fuel line.You need to dump the gas out,then disconnect fuel line,and blow air through it.

make sure you are getting fuel to the carb and make sure the float and seat in the bowl move freely and all is clean and clear. this sounds very much like a fuel issue,, also - while you have the bowl off the carb -make sure you spray carb cleaner into the jet and seat area.
if you are still having problems --please feel free to write me back here and I will do my best to walk you through the repair steps.

c...

I would take the bowl off the bottom of the carb.. Probably you have clogged up holes that let the gas into the bowl.Or either the needle is stuck up not allowing the gas to flow...That's why pouring gas in carbs would let it run for s few seconds....Also try fresh gas..Gas doesn't have led in it anymore..It don't last year from year...After grass season is over..Buy some from Lowe's or home depot..Pour it into your tank and let the motor run to get it done into the carburetor...Then the next year it will start

try more gas in carb if it runs and wont stay running its the fuel pump

You'll have to adjust the Idle so that the car will not quit running while driving .because less gas is entering to the engine.after you adjust the Idle then the car can run and not quitting.