The way you worded it it sounded like your first step was moving chakra out of your body, which didn't make much sense.
You gather the chakra into your gullet and concentrate it there, but don't form the ball yet. As you pointed out before if you did that, it would kill you. But you can't just have a loose gathering of it as then when you release it you won't be able to control it.
So after you do this, you release it up through your mouth, and as it exits your mouth you use shape manipulation to form it into a ball.