HI THERE ALL TRYING TO REPLACE MY IGNITION SWITCH WHERE THE KEY GOES BECASE MINE BLOCK THE KEY FROM TURNING, I SEE A LARGE COPPER SCREW WHERE THE IGNITION SWITCH IS, HOW DO I POP IT OUT FOR REPLACEMENT , PLEASE SOME ONE HELP . I NEED TO KNOW HOW TO REMOVE THE OLD IGNITION SWITCH AND REPLCING IT WITH ONE FROM A SALVAGE YARD WITH THE KEY , THANKS