Re: 1981 535 Virago Help

http://www.thevirago.co.uk/viragomicrofiche/tvmicrofichemain.asp?catalog=tvMicroficheXV500k1983SQL&Model=XV500K%201983

j: your carbs are sideways,,with the float bowl on the side....i believe the drain plug is #34 at the bottom on the side of the carb..this micro fiche should give you an idea of what you are looking for...good luck ,,let me know if i can help any further,,yg