I have disconnected the line from the tank and ran a line into a can of fresh gas to eliminate any trash problems with trash in the tank. The tank that is on it is a stainless tank that I had built. I thought maybe that was problem, but it did same thing out of a gas can. I blew air back thru the line to make sure it did not have any trash in the line....It really has me stumped.
The way it is plumbed is hard line out of tank over axle into a filter, then into electric pump, then into fuel pressure regulator, then hard line to front of motor, then small piece of rubber into glass inline filter, then short rubber to inlet of manual pump, then hard line short piece of rubber to fuel pressure guage then rubber to both carbs. Tonite I ran gas out of can thru elec. pump, regulator then manual pump...No luck...Next out of can to hard line to manual pump bypassing elec. pump and regulator...same thing.....same problem...runs with 5 to 7 lbs for about 10 min. then starts to fall and after about 10 more min. I am to zero..The gas can is above the elec. pump and the main gas line to assure gravity feed.
Thanks Bob