Well, here we go again…..

[charlie_the_tuna]

I removed both ends of the vent hose and blew through it. There didn’t seem to be any obstruction. Yeah, the filler hose and the vent are both up front.
I’m not sure where I would hook the portable tank. At the filter? At the tank? After the filter?
This is becoming very old, very fast.

[spareparts]

look at the screen in the vent, they will corrode up and stop up the vent fitting. If it acts up again, immediately open the gas fill, if it fixes the problem, then you know its a vent issue, not a fuel supply line issue

[charlie_the_tuna]

Done and done. Vent screen is good and I tried running it without the gas cap same.

[phatdaddy]

Try the separate fuel tank

[charlie_the_tuna]

I’m not sure where I should hook it up. Before/after the filter? At the tank? At the motor?

[charlie_the_tuna]

Next on the list, I believe there are 2 low pressure fuel pumps. When we come out of the water, I’ll address the fuel line from filter/water separator to carbs including the pumps. At that point I will have replaced everything from fuel tank to carbs.
I did not replace the anti siphon valve as it seemed to be functioning as intended.
This week I’ll replace the filter element on the motor and take her out. If this doesn’t solve the issue, we’ll put around for a few more weeks for some close to home blackfishing and we’ll come out of the water a little sooner than planned.
If after changing the entire fuel delivery system it still acts up, I’m gonna list it for sale, get the 15 running and find a little skiff to buzz around the bay for the season.

[phatdaddy]

U put a new Racor filter on recently, so I would hook the tank upstream of that.

I would not think u have a fuel pump issue, you are sucking the ball flat,right.

When u got the boat,you pulled the tank sending unit and cleaned the tank