Yes full turns,do them say 1/4th at a time try to start each time you will get to a spot that it will light up and run, when you get there it most likely will run rough,at this point try to turn it even less each time,let it adjust to each setting till you get a very smooth running car. Some times you will go in the opposite direction to check the spot that feels good.Though I suggest you use a volt meter and pin 2&3 of x11 to set the on off ratio.