Home › Forum › Ask A Member › Explain to me, in simple terms.. › Re: Explain to me, in simple terms..
An air leak in the fuel inlet section (suction side) would most likely give similar symptoms to a weak fuel pump. The engine would run for a few minutes, then stall out, you would need to pump up the fuel bulb in order to fill the carb and get it running again.
Usually, an air leak would show up as a fuel leak when the fuel bulb is pumped up, except if the air leak was before the fuel bulb.
So, I’m thinking that if your engine has an air leak in the fuel system, you could probably make it run OK by squeezing the primer bulb constantly.
Like 46Z says, trying a different tank might give some good information. And, my advice/descriptions apply to an air leak, not a fuel restriction.
Your symptoms really don’t seem like those from an air leak, and it is unlikely that both your engines have an air leak, unless the problem is tank related. Is your fuel/oil supply fresh? Any water in the tank?