1 smoked, fully cooked ham steak, about 2 pounds
1 cup ginger ale
1 cup orange juice
1/2 cup firmly packed brown sugar
3 tablespoons vegetable oil
1 tablespoon wine vinegar
2 teaspoons dry mustard
3/4 teaspoon ground ginger
1/2 teaspoon ground cloves

Score fat edge of ham. Combine remaining ingredients, and pour over ham in a shallow baking dish.
Refrigerate 8 hours or let stand at room temperature 1 hour, spooning marinade over ham several times. Grill ham over slow coals about 15 minutes on each side, brushing frequently with marinade. Heat any remaining marinade and serve with ham.