I rebuilt my carbs and now the number one carb spitts gas out. also when i hit the gas it stalls unless i give it full throttle checked the spark and it is great

check vent--if has fuel filter change it --carb cleaning --rebuilt--replace --------cdi failing

CHECK COMPRESSION ON ALL CYLINDERS

Carburetor most likely needs rebuilding. Floats probably stuck.

You need three things to make any gas engine run, in this order double check make sure you have proper timing set, spark and fuel. Could be bad gas or a bad ground from motor to frame.

Check /replace spark plugs first. Next, fuel restriction, either dirt in carbs, tank system or filters causng blockage, Clean system and filters.

Pumping the primer bubble while the engine is running should cause the engine to over fuel and stall (if the tuning is correct). Sounds like its not fueling enough, pumping the primer is forcing fuel through the carb causing the engine to pick up rev's, but this is soon exhausted which is why it wont rev on the throttle.
* Check that the fuel line is not damaged and drawing in air. (if this is intact try the next step)
* Strip and clean the carb. Replace any diaphrams if needed.
* Check gaskets seal between carb, air filter and cylinder.

Just out of curiosity what standard carb settings did you use.?

at what point does it stall out? when you try to go to full throttle or while it is just idling?

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The idle circuit is still plugged up or it would not be giving you this problem. Remove the carb and dis-assemble it then soak the parts in denatured alcohol for 30 minutes. Then use a spray carb cleaner to finish the job. Spray into all the little holes in the carb body. Especially spray into the air screw and throttle screw holes. Reassemble the carb and LIGHTLY seat the air and throttle screws then turn each of them one and one half turns outward. This is the factory setting. Before putting the slide back into the top of the carb, move the clip on the jet needle one notch lower on the needle. This will richen the low end fuel mix. Install a new spark plug and clean the air filter. Please rate my answer. Thanks.

check your muffler screen for being plugged, this will cause it to not accelerate
2StrokeJim

Hi

Adjust H,L and T from the carb.When the engine is warm check the spark from the sparkplug:It has to be a strong violet spark(not flame).Disassembly the carb and carefully clean it.Check the fuel pump(it should be tighten not bended),Check the fuel filter and air filter.;the gas tank ventil and the fuel hose.
regards savumihai71