Petcock Problems?

Discussion in 'Engine, Fuel and Exhaust' started by Kansasjase, Apr 18, 2010.

  1. Kansasjase

    Kansasjase Active Member

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    While troubleshooting some issues with my Fatty, I removed the petcock so I could clean the fuel filter. I put it back on, reconnected the lines and now when I fire up the bike, fuel sprays out of the small hole on the bottom of the petcock. What's happening here?
     
  2. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

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    There is a hole or leak allowing fuel to get on the side opposite where it's supposed to be. There is also a small "weep" vent hole to allow normal air pressure to the side opposite the vacumm side, also a handy indicator servicer uses to check internal conditions hidden bearing and seals, moisture or leaking fluid here tells you internal seal / vent has leakage means service or replacement is needed before it dumps all the fluid.
     
    Last edited: Apr 18, 2010
  3. TQuentin1

    TQuentin1 Well-Known Member Staff Member Moderator

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    Assume you have the vacuum operated valve. See #189 here:

    FUEL TANK - 2002 Harley Davidson Softail Fat Boy FLSTF


    Not sure what is happening with yours. Before replacing it (if that is what is necessary), I suggest replacing the vacuum operated valve with a Pingel non-vacuum version. You will have to plug the vacuum nipple. See here:

    Power-Flo™ Fuel Valves

    TQ