1. After 20+ years it's time to pass the torch. If you are interested in acquiring this forum please contact support@cv-performance.com for details. Any spam will be reported and blocked.
  2. Welcome to Bike Talk, a forum for all bikers and motorcycle enthusiasts. If you are new to Bike Talk, be sure to register for free and join the conversation.

    There's always someone around willing to help out with questions or give a friendly wave back. All Harley and metric riders are welcome.
Bike Talk Motorcycle Forum is For Sale Welcome to Bike Talk

Vacuum petcock versus high flow

Discussion in 'Motorcycle Tech Talk' started by augie2, Sep 3, 2008.

  1. augie2

    augie2 New Member

    Joined:
    Sep 3, 2008
    Messages:
    5
    Likes Received:
    0
    Location:
    California
    First off, I'm new to this forum and I appreciate the efforts put forth by all involved.

    My questions is;

    I am debating installing a high flow petcock on my 01' Fatboy and removing the stock vacuum setup.
    I realize that I must be careful to shut off the petcock at each shutdown to avoid flooding the carb, which is a habit I have anyhow.

    Am I wasting my time doing this and stay with the stock set up ?

    Thanks all,

    Augie
    augie2, Sep 3, 2008
    #1
  3. chucktx

    chucktx Moderator Staff Member

    Joined:
    Jul 5, 2005
    Messages:
    12,545
    Likes Received:
    10
    what other mods have you done??? are you starving for fuel??
    if the flow is ok, i would spend the money elsewhere, unless ya just need to replace it for more bling!!!!!:D :D
    chucktx, Sep 3, 2008
    #2
  4. Lucifer

    Lucifer Well-Known Member

    Joined:
    Mar 20, 2008
    Messages:
    3,861
    Likes Received:
    102
    Location:
    Cape Breton NS,Canada
    Welcome Augie;

    Have you done anything to the bike that would make you need a high flow petcock?? Unlees you've done mods that need a lot more fuel and your stock petcock works fine. You know the saying; If it ain't broke ,don't fix it.
    Lucifer, Sep 3, 2008
    #3
  5. augie2

    augie2 New Member

    Joined:
    Sep 3, 2008
    Messages:
    5
    Likes Received:
    0
    Location:
    California
    Basically I have numerous mods but the bike is staged one.
    I already have the new high flow petcock, in high chrome of course, and it has been just sitting in my parts box for a while.
    I'm presently not having a fuel flow problem.
    Maybe it's because I have the petcock but I'm at the point of "if it ain't broke - don't fix it".
    Just trying to find any advantages/disadvantages is all right now.

    Thanks,

    Augie
    augie2, Sep 3, 2008
    #4
  6. augie2

    augie2 New Member

    Joined:
    Sep 3, 2008
    Messages:
    5
    Likes Received:
    0
    Location:
    California
    Thanks for the welcome Lucifer.

    I am starting to agree with you........it ain't broke but you know how it is when you have a new part and "think" you must use it.
    My fuel flow is fine but the stock petcock is getting "sloppy" as far as the on/off switch. Getting loose.
    I forgot to mention that part. Oops, part of being a FNG here I suppose. :rolleyes:

    Augie
    augie2, Sep 3, 2008
    #5
  7. chucktx

    chucktx Moderator Staff Member

    Joined:
    Jul 5, 2005
    Messages:
    12,545
    Likes Received:
    10
    well, if ya got it, and it is burning a hole in the tool box and it is really shiney...........go for it. no, there is no advantage to putting it on, just more chrome to polish!!!!!!:)
    chucktx, Sep 3, 2008
    #6
  8. Lucifer

    Lucifer Well-Known Member

    Joined:
    Mar 20, 2008
    Messages:
    3,861
    Likes Received:
    102
    Location:
    Cape Breton NS,Canada
    :roflmao: :roflmao: Can't argue with that!! After all the stock one is gettin sloppy. :roflmao:
    Lucifer, Sep 3, 2008
    #7
  9. chucktx

    chucktx Moderator Staff Member

    Joined:
    Jul 5, 2005
    Messages:
    12,545
    Likes Received:
    10
    one other thing.....be sure to plug off the vent line to the old vaccum switch!
    chucktx, Sep 3, 2008
    #8
  10. augie2

    augie2 New Member

    Joined:
    Sep 3, 2008
    Messages:
    5
    Likes Received:
    0
    Location:
    California
    Yep, it's shiny and as much as I hate polishing I may install it after all.
    All of you have good points on the install.
    I plan to cap off the carb end where the vacuum hose runs to from the petcock.
    What a great guess, it is burning a hole in my tool box.
    The worse part of this whole project is HD put the cross over line between the tank and the frame, which means one has to drain the fuel and disconnect the crossover before you're able to remove the tank.
    Anyhow, guys I thank you much for your input...........this is a great forum !

    Augie
    augie2, Sep 4, 2008
    #9
  11. chucktx

    chucktx Moderator Staff Member

    Joined:
    Jul 5, 2005
    Messages:
    12,545
    Likes Received:
    10
    we are glad to be able to help!!!!:)
    we need some pics!!!!!;) :D
    chucktx, Sep 4, 2008
    #10
  12. ringo912

    ringo912 Active Member

    Joined:
    Jan 2, 2007
    Messages:
    625
    Likes Received:
    0
    Location:
    Michigan
    Take the new petcock and a few tools with ya and ride the bike until you run out of gas, that way you don't have to drain the tank. Then call a friend to bring ya some gas so you can get back home after you instal the new petcock:D

    Or just siphon or use a small pump to suck the gas out of the tank.
    ringo912, Sep 5, 2008
    #11
  13. hotroadking

    hotroadking Super Moderator Staff Member

    Joined:
    Jun 16, 2004
    Messages:
    13,682
    Likes Received:
    584
    Location:
    Mouseville USA
    Why remove the tank.

    Remove the seat and rear tank bolt, jack it up with a small board or top off a spray paint can, you should be able to get the petcock out, plus jacking up the tank pushes fuel forward,

    Be ready for gas to come out anyway so no smoking!

    Detach the fuel line and reattach, you'll need a band clamp.

    All you need to do then is remove air filter and backing plate then pop off Vac line and put on a small rubber cap, you can get them in varied sizes at any auto parts store. I zip tie mine with a small zip to keep them on.

    And yes you should get in the habit of turning off the fuel, if the float sticks you'll flood the motor with gas as it pours back into the motor.

    BTW it will end up costing you more because once you have the high flow fuel petcock on the bike you need to put in cams, head work, pistons otherwise you've wasted a $100.... LOL
    hotroadking, Sep 5, 2008
    #12
  14. Tiny86

    Tiny86 New Member

    Joined:
    Sep 26, 2007
    Messages:
    223
    Likes Received:
    0
    Location:
    Wichita Falls TX
    A sloppy pet **** I hate it when that happens:eek: :roflmao: :roflmao:
    Tiny86, Sep 5, 2008
    #13
  15. chucktx

    chucktx Moderator Staff Member

    Joined:
    Jul 5, 2005
    Messages:
    12,545
    Likes Received:
    10
    im sure glad somebody said it!!!!!!!!:roflmao:
    chucktx, Sep 5, 2008
    #14
  16. Tiny86

    Tiny86 New Member

    Joined:
    Sep 26, 2007
    Messages:
    223
    Likes Received:
    0
    Location:
    Wichita Falls TX
    You know me Chuck I'll say anything Write, Wrong, or :wtf: :roflmao:Besides that yall were thinking it!!!!!!!!!!!!!
    Tiny86, Sep 5, 2008
    #15
  17. Lucifer

    Lucifer Well-Known Member

    Joined:
    Mar 20, 2008
    Messages:
    3,861
    Likes Received:
    102
    Location:
    Cape Breton NS,Canada
    :roflmao: :roflmao: Sic bstrds:roflmao: at least it 's not mine gettin sloppy:roflmao: :roflmao:
    Lucifer, Sep 5, 2008
    #16
  18. augie2

    augie2 New Member

    Joined:
    Sep 3, 2008
    Messages:
    5
    Likes Received:
    0
    Location:
    California
    Thanks again guys for the info and I'm certainly glad some of you can relate to a sloppy petcock.
    Some people laugh but it's not fun to walk around like that beside the pointing an laughing wears a guy out.
    I now have a tight petcock by the way and I'm not afraid to show it off.......:D


    Augie
    augie2, Sep 6, 2008
    #17
  19. chucktx

    chucktx Moderator Staff Member

    Joined:
    Jul 5, 2005
    Messages:
    12,545
    Likes Received:
    10
    :eek: :eek: :D
    chucktx, Sep 6, 2008
    #18
  20. Lucifer

    Lucifer Well-Known Member

    Joined:
    Mar 20, 2008
    Messages:
    3,861
    Likes Received:
    102
    Location:
    Cape Breton NS,Canada
    :rolleyes: This is goin straight to the gutter:roflmao: Glad you got er straightened out Augie:roflmao:
    Lucifer, Sep 6, 2008
    #19

Share This Page

XenPorta © Jason Axelrod from 8WAYRUN.COM