Grilled Lime-Balsamic Sweet Potatoes

Peel and cut each sweet potato lengthwise into 8 wedges; place in a large bowl. Toss with oil, salt and pepper. , In batches, cook potatoes on a greased grill rack, covered, over medium heat 8-10 minutes or until tender, turning occasionally. , In a large bowl, mix remaining ingredients; add potatoes and toss to coat.