hmmmmmm, this is what you do, take the servo saver of the servo. make sure the carb is at idle. if its not when you close it all the wya than adjust the idle screw until it is. then turn on you radio and reciever and set the throttle trim that its at 0 or the middle on our radio. then while the carb is at idle the servo saver back onto the servo making sure the carb is at idle, this is done with the engine not running