Need help with 200 2 stroke S/S stalling

[cmudder]

changed fuel / water separator checked tank for water all good.Took the boat out yesterday and rode around for 15 minutes the it starting loosing power checked fuel bulb and it was flat changed bulb, checked tank vent, all good went run it again and same thing today. Need help any ideas will ge greatly appreciated at wits end for now tank is in hull and is aluminum if it makes a difference.

[mitch]

Have you cleaned out the fuel line ali tanks have a problem with gowning white snot in them if water is present ? Is there a fuel filter in the tank

[cmudder]

have not cleaned tank but plan to drain all gas out tomorrow replace fuel line. Pulled out fuel tank pickup hose and found fitting not very tight and minimal teflon on the fitting

[cmudder]

still doing same thing Help Me Please going to replace all parts from tank to engine.

[99yam40]

Is there a anti siphon valve in the line or tank?
Is the tank vent line collapsed?
Maybe pinched fuel line.

[Tucker]

If you're running 15-minutes, my money's on the tank anti siphon valve. Could be boat mounted fuel filter, but I don't think it would run fine for 15-minutes.