I bought a Novarossi RX21 P5 for my Mayhem that should be here in a couple of days. Looking at how the engine sites in the buggy, the engine came with the carb turned the wrong way for the servo to operate the slide. I had to turn the carb 180 degrees. Anyway, back on topic: I'm looking at the carb and I can see which needle is the high speed, but I'm not sure which is the low speed. Is it the screw on the slide arm, with the ball end, or is it the screw on the opposite side of the carb that's flush with the carb body? Also, with the carb in the position it is, the idle set screw faces down and to the side where the pipe will be making it almost impossible to get to without taking off the pipe, any ideas. Is there a carb that can be put in there to make things easier?