Whisk together remaining ingredients and pour over chicken.
Cover with plastic wrap and refrigerate at least 4 hours.
Heat grill to medium-high heat.
Place chicken on grill until browned on all sides (about 10 minutes) turning once or twice.
If using gas grill reduce heat to low and cook 20 minutes (check for doneness,continue cooking until chicken is no longer pink,if needed) If using charcoal,move chicken to edges of grill,cover and cook over indirect heat,check for doneness at 20 minutes,continue cooking if needed.