Cut off and discard wing tips from chicken wings. Cut each wing at joint to make 2 sections.
In a shallow dish, combine flour, garlic salt, and lemon pepper seasoning; coat chicken pieces with flour mixture.
Heat oil in a 12-inch skillet; add coated chicken pieces and cook until browned, turning occasionally.
Remove chicken from skillet and arrange pieces in a shallow baking dish.
In a medium saucepan, combine sugar, vinegar, pineapple juice, catsup, and soy sauce; heat to boiling, stirring to dissolve sugar. Pour over chicken.
Bake, uncovered, in a 350 degree F oven about 30 minutes or until chicken is no longer pink, turning pieces over after 15 minutes. Makes 24 to 30 pieces.