Snatching in the middle of the idling

[poban]

I'm operating the ATM50. After replacing the carb, it runs well and starts well. But there's a problem. I do idling for a long time when I wait for the signal. If I do snatching, the start will be turned off or the RPM will be very low. Most of the time, the scooter turns off. Do you happen to know what's wrong? It's no use touching Air Josh. I don't think it's the size of a pilot jet. Because the idling is very stable and the ignition is good. Does anyone know the cause?

[JerryHawk250]

Don't know what carb you have. On most cabs this can be resolved by raising the needle 1 notch.

[poban]

I installed NIMTEK carb linked below. I also adjusted the needle, it doesn't work. OMG..
https://www.amazon.com/gp/product/B002QBNH9W/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1