I'm doing an F550 build and there appears to be no instruction about how the motors connect to the ESC's, i.e., they are unmarked. Do I just connect them in their "natural" order the way they come out of the motor?
Connect them in any order and then test the motor. If it spins in the wrong direction then swap two of the leads round and it will spin the correct direction. Do your testing without the props on or it could end up messy. I usually put a bit of tape around the motor shaft so it's easier to see the rotation direction.