Before I pull everything apart, maybe this is a familiar problem to someone here? This is a Goplus amazon kit that I've installed with my son. It has run well for about an hour total, but today it cut out and started dripping fuel. The jist is pretty simple; as soon as I open the fuel valve, fuel starts dripping out of the carb. Nothing stops it, other than shutting the fuel valve. Popping off the air cleaner, I found that fuel is gushing out of the small hole next to the barrel inlet, which I presume is where the primer shoots its fuel? Is my crappy lil plastic primer stuck open, or is there something else I'm missing? Thanks in advance!