vacuum assisted petcock

Discussion in 'Engine, Fuel and Exhaust' started by bigd66, Aug 27, 2010.

  1. bigd66

    bigd66 New Member

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    Why does my petcock to my 98 Road King spew fuel? Can I change it out with a regular type petcock (without vacuum)? If so what to do with the vacuum lines?
     
  2. Jack Klarich

    Jack Klarich Expert Member

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    H D had some problems with those Petcocks, yes u can change it and plug the vacum hose or buy a H D replacement one your ride u decide:s
     
  3. bigd66

    bigd66 New Member

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    Thanks Jack, just wasn't too sure about the vacuum lines.
     
  4. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

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    Actually, I like vacuum petcocks, they prevent fuel overflow or flooding of the engine or crankcase if you have a carbureted V-Twin, as the only thing stopping the gravity fed fuel is the needle/seat float assembly. Let a bit of debris get in the seat and you got problems if you forget to religiously remember to shut the petcock OFF.

    Pingel makes a combo one that has an easier reach lever and is available with vacuum diaphram as well if you are jaded about the stock HD one. I would be more afraid of wearing out the petcock in-nerds on the stocker if I had only the manual mode. :newsmile025:
     
  5. chester1957

    chester1957 Member

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    The stock one is pretty cheap compared to a manual Pingel, and the vacuum Pingel price is a shocker.
     
  6. Bud White

    Bud White Well-Known Member Retired Moderators

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    Got a pingle on the Fatboy go with one of those yeah ya got to remember to turn it off but its not that big of a deal