Ribs can be cooked on a grill, but you will need to maintain a low 250 degrees Fahrenheit for a few hours to allow the meat to become tender. You will also need to cover the ribs so they do not dry out during the process. Instead, try roasting the ribs, covered, in an oven at 250 degrees Fahrenheit for about 4 hours. Add 1/4 inch of water to the bottom of the pan to ensure that they stay moist during the cooking process. When they are finished, carefully set them on the hot grill to caramelize the BBQ sauce.