Place turkey, breast side up, over unheated side of grill directly over drip pan. Cover grill; cook turkey with medium heat 2 1/2 to 3 1/2 hours or until thermometer reads 180°F to 185°F and legs move easily when moved or twisted. Avoid lifting cover until ready to check thermometer. (There is no need to baste or turn turkey.) Let turkey stand 15 to 20 minutes before carving.