1. To make marinade, place lemon juice, honey, garlic and chilli powder in a bowl and mix to combine.
2. Place drumsticks in a shallow glass or ceramic dish, pour marinade over and toss to coat. Cover and marinate in the refrigerator for at least 2 hours, or overnight, turning several times during marinating.
3. Preheat barbecue to a medium heat. Drain drumsticks and reserve marinade. Cook drumsticks on lightly oiled barbecue, brushing frequently with marinade for 10-15 minutes, or until chicken is tender.