How to Cook a Whole Chicken on a Gas Grill?

To grill a whole chicken, use the indirect grilling method. Light half the grill, close the cover, and preheat to medium heat, or about 375 degrees. A small 2 1/2 to 3 lb. chicken will take 1 to 1 1/4 hours. A little larger 4 1/2 to 5 lb. chicken will take 1 3/4 to 2 hours. Make sure the internal temperature reaches 165 degrees.