Look carefully at your fuel. Had a similiar issue years back with water in the fuel. If you don't already have one, add a water seperator filter. The vent line should have an upward loop before it exits the hull to prevent water spray from going thru the vent line back into the tank. That was my issue, drained and cleaned the tank, added the upward loop and problem was solved. Water spray off the hull would go into the vent and down the line into the tank. At one time after an engine stall, we removed the seperator filter and poured the remnants into a metal bowl, tried lighting it....all water, would not burn ! Todays fuels can be a crapshoot, often contaminated so adding filters can really help.
Clean out entire fuel system !! Water may have damaged the fuel pump.
Looks like mine has a mechanical pump located on the starboard side of the motor, I do have electric wires running to the tank, could there very well be a fuel pump in the tank as well?
No that is the sending unit for tank level.
If you are not getting fuel likely the pick up (some have a screen inside of pickup tube) , or anti-siphon valve are not working or there is a blockage in the line. I think some guys have t'ed in a vacuum gauge on suction side to verify. As mentioned put a remote tank on temporarily to isolate fuel tank and supply system. If it runs on a remote tank then you know where to look
Reving in neutral is meaningless it take no power to rev up with no load on it. when it dies have you checked spark strength with a cheap spark gap tester? If spark is good when it dies you are still dealing with a fuel supply issue .
