In a small bowl, whisk syrup, vinegar, salt and pepper until blended. Pour 1/2 cup marinade into a large resealable plastic bag. Add pork chops; seal bag and turn to coat. Refrigerate 1 hour. Save remaining marinade for basting.
Drain pork chops, discarding marinade in bag. On an oiled grill, cook pork chops, covered, over medium heat or broil 4 in. from heat 15-20 minutes, turning occasionally and basting with reserved marinade during the last 5 minutes. Let stand 5 minutes before serving.
*Enjoy your barbecue, the outdoors, and the grilling time. Always be cautious and never leave open flames unattended for any prolonged length of time.