1996 Kawasaki VN 800 B Vulcan Classic Fuel Petcock Shut Off Valve The Petcock is a fuel shut off valve that operates either manually, via vacuum, or a combination of both. A used Petcock will be complete, fully functional, and will not leak. Prior to installing a used Petcock, it is important that you allow the petcock to sit immersed in fuel or light oil for 24 hours before turning the knob. This will allow the internal seals to swell and become lubricated again, preventing damage. Sample Picture of Fuel Petcock Shut Off Valve Shown, not necessarily the Fuel Petcock Shut Off Valve for your bike. You will be shipped the correct part for a 1996 Kawasaki VN 800 B Vulcan Classic Click here to see other parts for your motorcycle Kawasaki Model Identification Note: On all Kawasaki models produced after 1980, the 7th digit of your motorcycle's VIN (it is a letter) is critical in identifying the model of motorcycle you own. For example, if you own a 2000 ZX6, and the 7th digit of the VIN is an E, then you own a 2000 ZX6 E; If you own a 2001 Vulcan 1500, and the 7th digit of the VIN is a G, then you own a 2001 Vulcan 1500 G. Please confirm the 7th digit of your VIN number before placing your order.