Reply To: twin line pressure tank question

[fisherman6]

Richard is correct. The primer button is a liquid pump that pumps fuel to the carburetor bowl. it does not pressurize the tank. Crankcase pressure from the engine running pressurizes it. The fuel pumped into the carburetor float bowl keeps the engine running long enough to generate enough pressure to maintain fuel flow. Pressure will vary from motor to motor but will likely never exceed 5psi. This is often dependent on the condition of the rubber checks in the intake manifold.
-Ben

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