It doesen’t stay on

[Sayan_rider24]

Good morning everyone,
I’m new on this forum, i ask you some advices.
I have an agility 125 2011, when i start it up it doesen’t stay on. so i changed the depressor, bc it seemed that petrol was stuck, but it didn’t work. Then i took off the carburator and cleaned it with petrol, but it continues diyng.
The last thing i suppose in that it can be the automatic air, but i don’t know..
I enclose a video that shows you what happens,
thank you very much

[Ruffus]

Welcome here!
First thing I would do is a proper cleaning of this whole motorbay and motor to see whether hoses or the vacuum pump are faulty. (cold motorcleaner or diesel, brush, waterhose)

Second an ultrasound cleaning of the carb.
Third, new sparkplug and plugcap.
Fourth, check the inline fuelfilter before vacuum pump.
Fifth, airfilter completely out and airways clean.
If spark and fuel are delivered properly, should stay on.