For future reference, always give year, make, engine size and model # when asking questions. We need all of that info to give an informed answer.
700,800,1500,1600,2000cc? The large and small are totally different.
Removing the carbs on the 750 & 800 is a project, even for experienced mechanics.
The larger Vulcans, remove the airbox on the right and the carb removal will be self explanatory.
http://www.motocom.com/motorcycles/