So I have my first MB, its a grubee skyhawk gt5. I want to tune it and I am having some problems. First, sometimes when idling it will go absolutely crazy, and I will not be able to shut it down with the kill switch, second, how do I adjust the idle and air screws on the carb (its a CNS), and finally when I twist the throttle towards myself it sometimes with shut off and sometimes it will rev higher. Also what happens when a cable is bent I would much appreciate some help.