In a small saucepan, heat jelly and lime juice over medium heat until melted. Set aside 1/2 cup for serving.
Sprinkle chicken with salt and pepper. On a greased grill rack, grill chicken, covered, over medium heat 15-20 minutes or until a thermometer reads 170°-175°, turning occasionally and basting with remaining jelly mixture during the last 5 minutes of cooking. Serve with reserved jelly mixture.