I am unsure if it is air or fuel vapor. the fuel in the line is very turbulent when running at WOT. Working on boat motors is not something I normally do and I am not very experienced with engine repair in general. I just am making sure that this is normal or if it requires further maintenance...
I put a new tank and hose on. The motor no longer stalls out at full throttle but there is still air bubbles in the fuel line between the fuel pump and the carb. Is this normal or should it be solid fuel? What would I change next? Fuel pump? Gasket between fuel pump and motor?
I bought this motor for my duck canoe, ran good when I bought but didn’t run it long. Just a couple minutes. The motor starts easy and runs well at low to mid throttle. When I run at more than mid throttle I get air bubbles in the fuel line then stalls out. The tank and fuel line are older too...