Having problems adjusting .21 engine
i hate t osound like an idiot, but I don't know which is the mid speed needle, or the low speed needle, or whatever. There is a needle stiking out of the top, then there is one directly underneath and perpendicular to the one on top, and then there is a little screw needle thing just to the right of the bottom needle. I am not sure which engine this is, but I really need some help tuning it.
thanks
Q