What is the mission of the stopcock located between the fuel tank and the engine?

Question

DentroTest · Accepted Answer

In carbureted motorcycles, fuel usually reaches the engine by gravity from the tank. The stopcock located between both elements serves to regulate the flow of gasoline to the carburetor bowl. It generally has three positions: open, closed, and reserve. It should be noted that modern motorcycles with electronic fuel injection do not have this manual stopcock.

What is the mission of the stopcock located between the fuel tank and the engine?

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