In a small bowl, combine teriyaki sauce and syrup. Set aside 1/4 cup for basting.

Pour remaining marinade into a large resealable plastic bag; add salmon. Seal bag and turn to coat; refrigerate for 15 minutes.

Drain and discard marinade.

Coat grill rack or broiler pan with nonstick cooking spray. Place fillets skin side down.

Grill, covered, over medium heat or broil 4 inches from the heat for 8-12 minutes or until fish flakes easily with a fork, basting frequently with reserved marinade.