Re: engine issues!
If you whack it wide open from idle it will stumble and may die. It is the nature of the beast. These carburetors have no accelerator pump or any kind of device to accommodate very rapid throttle position change, especially when operating at slow engine speeds.
"It's a chinagirl. It's a sometimes fun little engine that often will break your heart. It's disposable.
Does not come with a fortune cookie."