Yamaha Fuel Management System

Discussion in 'Boating Discussion' started by Pescador Paul, May 24, 2010.

  1. Pescador Paul
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    The fuel management system on my Yamaha F225 outboard is currently not working. No matter what speed I am going, the fuel consumption reads 0.0 gph, and the totalizer is stuck at 68 gallons. I have used at least 20 gallons since this figure has moved. Note that the guage still displays numbers.

    Is this indicative of a stuck/clogged sensor? Or is it likely a wiring problem? Any sugestions will be greatly appreciated.

    Thanks,

    Paul
  2. JUST-IN-TIME
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    sounds like bad sensor on fuel line
  3. Pescador Paul
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    I took out the sensor and blew some air through it. I could see some crud blow out of the unit. I hooked it back up and it's working.

    Pescador Paul
  4. JUST-IN-TIME
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    that crud is fuel lines or water in fuel
  5. Pescador Paul
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    I cureently have a fuel/water seperating filter upstream from the sensor. Could the crud be caused by ethanol? What can/should I do about it?

    Paul
  6. JUST-IN-TIME
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    was it yellow or green?


    yellow is water

    green is bacteria
  7. Pescador Paul
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    I really did not get a good look at the crud, as it flew out into the wind, but it looked whitish. I was thinking it was teflon tape, either the regular or liquid kind.

    Paul
  8. JUST-IN-TIME
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    use pipe sealer not Teflon tape in gasoline usage
  9. Steel Leader
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    my buddy in hs worked for team rough rider (ford offroad racing) rob mc cacrens's (spelling?) truck, he lost a race if I remember correctly from sombody using teflon tape on a fuel line, big no no.
  10. Pescador Paul
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    I did not install the unit initially. I looked more like a dry powder. Perhaps something along the lines of a sealer, rather than tape.
  11. JUST-IN-TIME
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    ok, it should be red sealer on it, just use pipe dope

    no need to get crazy cuz it is a pipe thread

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