Home › Forum › Ask A Member › 4 gal Evinrude tank, pressure or suction? › Re: 4 gal Evinrude tank, pressure or suction?
March 22, 2017 at 7:37 pm
#54718
If you look under the fuel connector you’ll see each side marked air and fuel. The air line is receiving air from the operation of the motor. The air outlet is a nipple on the manifold and a short hose going to the motor side connector. When you plug in the connector, that air now travels through the air line into the tank and pressurizes it enough to force fuel back up through the fuel side, through the connector, hose, and into the carb/filter bowl.