Using your hot pad or glove, loosen the screw on the fork opposite from the handle and slide it off. Now the chicken is free to move. Holding the chicken on the platter or cutting board, slowly pull the rod from the chicken. The lemon we put inside will stay with the chicken and you can remove it before carving. Let the chicken rest for 5 minutes allowing the juices flow back into the meat. Once this time is up, carve the chicken as normal.
One last point of advice. You have been cooking a whole chicken indirectly on your grill. Drippings from the chicken has fallen into your grill without burning off. It is a good idea to light up the middle burner and get it burned off or next time you use your grill, this might cause a pretty big flare-up.