Can someone give me advice or pictures on how the parts go into the carb that the throttle wire connects to, the cable goes into a black plastic piece, there is a needle that sits down in the carb and there is also a small horseshoe kind of piece that is supposed to sit down in the carb... I am new to this but when I unscrewed it all those parts kinda just went out and I can get it back in but want to make sure it's right