Why would the return line cause it to lose fuel when you open the throttle?
If the purpose of the return line is to return unused fuel to the tank,
theoretically there is less fuel passing through it as you open the throttle
up.
Scout

"Bart Senior" wrote in message
et...
It didn't run at all until I changed the filters and bleed the
system.

I'll bet it's either the fuel pump or else the return line. Either
of those fits the circumstances.

"Scott Vernon" wrote

Did it run OK after you changed filters. Air leak?

"Bart Senior" wrote
All filters are new.

"Scout" wrote

check your fuel filter.