Well....... I don't recall a pump causing this type situation, They either work or don't work or leak fuel into the crankcase.
Pinch the fuel line off before the pump and gravity feed the carb with a test tank and see how it runs......
Originally Posted by piston slapper
You never learn anything until you admit you don't know it all...
"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!