1In shallow glass or plastic dish or resealable food-storage plastic bag, mix marinade ingredients. Add shrimp, pineapple, bell pepper and onions; stir to coat. Cover dish or seal bag; refrigerate 15 to 30 minutes, turning once or twice.
2Heat gas or charcoal grill. Carefully brush vegetable oil on grill rack. On each of 4 (12- to 14-inch) metal skewers, thread shrimp, pineapple, bell pepper and onions alternately, leaving small space between each piece. Reserve marinade.
3Place kabobs on grill over medium heat. Cover grill; cook 5 to 7 minutes, turning and brushing with marinade once, until shrimp are pink and vegetables are tender. Discard any remaining marinade.