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  1. MaxGlide

    Fuel Gauge making full, even with no power.

    UPDATE Turns out the gauge part was a loose ground behind the fuel gauge. Also, initially, the gauge needle was stuck all the way forward and I tapped it and it went back down. The wiper and bilge pump was me mucking around back there, in the dark, and disconnected wires by accident. Got back...
  2. MaxGlide

    Fuel Gauge making full, even with no power.

    Sorry, I meant a short to ground. I was poking around behind the consloe, moving wires around. I must created a short somewhere.
  3. MaxGlide

    Fuel Gauge making full, even with no power.

    UPDATE So the fuel gauge dropped back down when I tapped it (with power completely off, not just key). Needle was stuck. HOWEVER… now this is the problem. As soon as I turn battery power on (key still off), the fuel gauge goes to the max. Now the bilge pump and wiper don’t work and the fuel and...
  4. MaxGlide

    Fuel Gauge making full, even with no power.

    ADDED INFO. Before getting new sender, I "tested" the console gauge by running a wire between the ground wire and the sender wire at the sending unit, Gauge jumped to full then back down when I removed connection. Could I have fried the fuel gauge at the console?
  5. MaxGlide

    Fuel Gauge making full, even with no power.

    So fuel sending unit failed. Replaced with new. Now fuel gauge reads FULL, past the full line, all the time, even with power completely off. Not just key, power off at battery switch. I can’t seem to find info online for causes. Thanks in advance for any help. Wayne.
  6. MaxGlide

    Trying to diagnose fuel supply issue after running out of gas

    But t wouldn’t the fact i can blow into tank and hear bubbles AND when i suck on line coming directly from tank, the gas comes easily and quickly? I got a mouthful of gas, thinking it was probably plugged
  7. MaxGlide

    Trying to diagnose fuel supply issue after running out of gas

    Is it possible by sucking everything out of tank, junk included, this (red) part of the fuel filter is clogged? I see that this type of anti siphon valve is screwed into this part of the assembly? (Green area)
  8. MaxGlide

    Trying to diagnose fuel supply issue after running out of gas

    It has not primed yet. I think i found the location of the anti siphon valve. I believe it’s at the intake of the fuel filter. As mentioned, sucking it dry maybe pulled ALL debris towards filter and buggered the anti siphon
  9. MaxGlide

    Trying to diagnose fuel supply issue after running out of gas

    MORE INFO. Boat ran perfectly fine with current set up of filter/separator. I’m just trying to figure out was could have failed due to completely running out of gas. Fuel line not clogged New fuel filter installed Lotsa gas Filter primed Starts when gas put in carb All line tight. My next...
  10. MaxGlide

    Trying to diagnose fuel supply issue after running out of gas

    Where would I find this valve? Is that at the intake of the line going from tank to filter/pump?
  11. MaxGlide

    Trying to diagnose fuel supply issue after running out of gas

    100% out of gas. We took the fuel sending unit off to service it, and the tank was bone dry.
  12. MaxGlide

    Trying to diagnose fuel supply issue after running out of gas

    I removed the hose from the filter to tank, so straight line to tank. Blew into it, heard bubbling in tank. Light siphon and gas filled my mouth in about a second. So clear from tank to filter.
  13. MaxGlide

    Trying to diagnose fuel supply issue after running out of gas

    I removed the hose from the filter to tank, so straight line to tank. Blew into it, heard bubbling in tank. Light siphon and gas filled my mouth in about a second. So clear from tank to filter.
  14. MaxGlide

    Trying to diagnose fuel supply issue after running out of gas

    I suspect it did collapse due to suction after emptying tank. I will replace.
  15. MaxGlide

    Trying to diagnose fuel supply issue after running out of gas

    It’s the filter in the fuel pump, the bell part
  16. MaxGlide

    Trying to diagnose fuel supply issue after running out of gas

    1977 Mercruiser 140, four cylinder engine, serial #3847982. Using a mechanical fuel pump. Ran boat completely out of gas (faulty gas gauge showing more than we had). Put gas back in, new fuel filter, filled up fuel filter with gas. Fuel line from tank to filter unit is clean and clear. Not self...
  17. MaxGlide

    Honda BF7.5 won’t idle, so far I’ve

    Additional note, bought a generic fuel filter. The brass mesh was too coarse and still letting particles thru. Now have proper Honda filter on line going in to fuel pump AND between fuel pump and carb.
  18. MaxGlide

    Honda BF7.5 won’t idle, so far I’ve

    So I figured it out. It was DEFINITELY the main jet. Took carb off again and main jet was plugged. Clean out and back on, started immediately, ran beautiful... for 2 minutes, stalled again. Removed carb AGAIN and during removal noticed that fuel line was brittle and tore easy. Install all new...
  19. MaxGlide

    Honda BF7.5 won’t idle, so far I’ve

    I think I may have figured it out. Like a dummy, I totally forgot to clean the main jet that you unscrew to get the main nozzle out. Gonna do that now and report back!
  20. MaxGlide

    Honda BF7.5 won’t idle, so far I’ve

    Should this main nozzle have two little o rings?
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