Table of Contents
How does a fuel petcock work?
A petcock, or sometimes referred to as a fuel tap or fuel valve, is a 2 or 3 way valve on the bottom of your fuel tank. It works by directing fuel from your tank to the carburetors or fuel injectors. Fuel is pulled by either gravity or vacuum from the fuel system.
What is a manual petcock?
The other type of petcock is the manual type. It has no diaphragm or vacuum operated valve. The valve is strictly manual. Settings on these will be On, Reserve and Off.
What does PRI mean on a fuel petcock?
PRI is for priming the carburetor. That means filling the carburetor up with gas if it is say the first time its ever been ridden or the gas was drained out for some reason.
How do you tell if petcock is on or off?
Counter clockwise is “OFF”. Clockwise is “RESERVE”. Check it by turning to the off position and pull off the gas line. If it doesn’t flow then you have it.
How do you turn on the fuel on a motorbike?
All you need to do is turn the fuel petcock valve located on the left side of your motorcycle near the carburetor, from ON position to RES position. Currently, the fuel valve will be at ‘ON’ position when you run out of gasoline in the main tank. Now, turn the valve 180 degrees to switch its position to ‘RES’.
Which way is on for a petcock?
You are in the “ON” position. Counter clockwise is “OFF”. Clockwise is “RESERVE”. Check it by turning to the off position and pull off the gas line.
Should I turn off the fuel on my motorcycle?
The primary reason for shutting off the fuel is safety. On a motorcycle the fuel tank is directly above the engine. If fuel were to leak it would drip directly on the hot engine. This along with the fact that most motorcycles use a rubber supply hose that is exposed to the engine heat and the resulting decomposition.
What is reserve on a petcock?
When you are using the ‘reserve’ position on many older motorcycles you are bypassing the vacuum operated ‘ON’ position of the petcock. The vacuum operated valve is a safetly feature so that fuel will only flow into the carburetor when the engine is running and creating a vacuum.