the parts you are talking about is the power system,,you have a spring and long brass lance the lance fits into a hole in the piece the ball is in the ball should have a small spring under it to hold it closed,,,the lance is sucked aginast the top spring compressing the spring at idle and low speed when hard acc or full throttle is used vacum decreases allowing top spring to push lance thus removing stuck ball allowing more gas into engine under full throttle...doc