air in gas line

[iggyw1]

I have a 1991 6 H.P. Evinrude kicker motor on my boat. When the boat sits over night, there is a lot of air in the gas line. I can hear the air when i am squeezing the primer ball. I actually have to disconnect the line from the motor, push the pin in, and squeeze the ball several times until I get a good gas flow going, then hook it to my motor again a squeeze it again, until the ball gets hard, then the motor runs great. I know it is getting the air from somewhere, but all connections on the new fuel line are tight. How can the gas get out of the line that fills with air when motor sits overnight????

 

[Newyota]

bad ball?

 

[Bosunsmate]

leak in the pick up line area in the tank

 

[Vic.S]

I have a 1991 6 H.P. Evinrude kicker motor on my boat. When the boat sits over night, there is a lot of air in the gas line. I can hear the air when i am squeezing the primer ball. I actually have to disconnect the line from the motor, push the pin in, and squeeze the ball several times until I get a good gas flow going, then hook it to my motor again a squeeze it again, until the ball gets hard, then the motor runs great. I know it is getting the air from somewhere, but all connections on the new fuel line are tight. How can the gas get out of the line that fills with air when motor sits overnight????

Id think it is draining back into the tank overnight because the valves in the ball do not prevent it.
Maybe air is getting in via a badly fitting connector at the engine or one with a bad O ring .
Does this happen if the fuel line is disconnected from the engine overnight.

It should not normally be a problem unless there is a bad enough air in-leak to cause fuel starvation when running.
Hold the ball , outlet end pointing at the sky, and pump. All the air should vent vai the carb . When its all gone the carb bowl should fill and the ball then feel firm.