Preheat the oven to 350°F. Combine the flour, salt, and chili powder in a large, resealable plastic bag. Shake to mix. Add the chicken to the bag, seal, and shake until the chicken is thoroughly coated. Heat the oil in a large skillet and brown the chicken on all sides. Place the chicken in a lightly greased, shallow baking dish. In a bowl, mix together the orange juice, raisins, rum, cinnamon, cloves, and pineapple (with juice). Pour the mixture over the chicken. Bake uncovered for 50 minutes, or until the chicken is tender, occasionally basting with juices.