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Vacuum Tap Valve Petcock

Product categories of Vacuum Tap Valve Petcock, we are specialized manufacturers from China, Baotian Scooter Petcock, Qingqi Scooter Petcock suppliers/factory, wholesale high-quality products of Jonway Scooter Petcock R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!

China Vacuum Tap Valve Petcock Suppliers

Most older motorcycles have a three-position fuel petcock valve (known as a "petrol tap" in the UK) mounted on or nearby the fuel tank to control the supply of gasoline: on, off, and reserve.
The reserve position accesses the bottom portion of the fuel tank. Many older motorcycles lacked a fuel gauge, making reliance on a fuel reserve a relatively common experience. Most now have an automatic, vacuum operated petcock (that may include a prime position which bypasses vacuum operation and allows fuel to flow to the carburetor without the engine turning over).
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