Petcock/Gas tank

Discussion in 'Motorized Bicycle General Discussion' started by obadboystanley, Oct 2, 2012.

  1. obadboystanley

    obadboystanley New Member

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    #1 obadboystanley, Oct 2, 2012
    Last edited: Oct 2, 2012
  2. JonnyR

    JonnyR New Member

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    is it not threaded or just no hole if there is a hole you need a tap to thread it if no hole thats another problem
     
  3. 2door

    2door Moderator
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    It appears to be plastic (drilling & tapping won't work) and has a barbed fitting/nipple on the bottom. If so just install an in-line petcock and locate it between the engine and tank. Most any petcock will be threaded, either male or female or one of each. You can buy barbed fittings that will thread into the valve (petcock). You didn't say what engine/carb you have but 1/4" or 3/16" I.D fuel tubing and matching barbed fittings will suffice for most bike engines.

    Tom
     
  4. obadboystanley

    obadboystanley New Member

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  5. JonnyR

    JonnyR New Member

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    if you go to the hardware store you can get one it will just be hard because its a odd thread
     
  6. 2door

    2door Moderator
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    You can't find a barbed fitting for what? The carburetor has one, the valve has them and it looks like your tank has one. Where do you need another one?

    Tom
     
  7. JonnyR

    JonnyR New Member

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    he wants to use the stock petcock he has with a barbed fitting if he can
     
  8. obadboystanley

    obadboystanley New Member

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  9. 2door

    2door Moderator
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    The kit supplied petcock has a male 10mm machine thread and a barb fitting. Using a machine thread (non tapered) will require the use of a gasket and a matching female fitting. Now you're getting too many parts involved. You probably won't have room for everything.

    Discard the kit petcock. It's not going to work well with other components. My guess, from the photo of your plastic tank is that the barbed nipple on the bottom will require a 3/8" or a 5/16" fuel line. Auto parts stores will have reducing fittings to help you mate the tank to a 1/4" fuel line. Take the fuel tank with you, explain to the counter man what you're trying to do and if he's knowledgable, he'll provide the correct parts. Tell him you need to adapt a 1/4" I.D (inside diameter) fuel line to your tank.

    Tom
     
    #9 2door, Oct 2, 2012
    Last edited: Oct 2, 2012
  10. obadboystanley

    obadboystanley New Member

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    Thanks Tom. Ill go to the auto parts store tomorrow.
     
  11. tooljunkie

    tooljunkie Member

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    i have a gas filter that has stepped barbs,1/4 and 5/16" .i have used them often when i need to downsize or upsize a hose.
    small engine shops will carry a petcock with barbs on both ends.

    tank will look good when you get it mounted up.
     
  12. obadboystanley

    obadboystanley New Member

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    I went to autozone and just my luck the guy who was there wasnt of much help.
    i took the gas tank and explained everything and it seem he didnt have a clue of what I was talking about.
    so i resorted to google and found this.
    http://www.autozone.com/autozone/ac...r-adapter/_/N-26cq?itemIdentifier=839133_0_0_
    I measured the barbed nipple fitting on the gas tank and its 5/16 like "2door" had said.
    So is this piece the missing link to get the bike running? since everything else on it is practically done.
    Thanks.
     
  13. 2door

    2door Moderator
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    All too many auto parts counter men today have no knowledge unless you can give them the make model and year of a car so they can look it up on their computer. Try another auto parts store, preferably an older one and look for a man with a few wrinkles to help you. If they have a fitting assortment, brass or gasoline resistant plastic, you should be able to find what you need. 5/16" to 1/4" reducing barb fittings shouldn't be that hard to find. I just browsed on Google and there were numerous pages to choose from.

    Tom
     
  14. obadboystanley

    obadboystanley New Member

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    So the part to the link I posted wouldn't work?
     
  15. 2door

    2door Moderator
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    That part is made to adapt steel fuel lines to flexible line. No, it is not what you need. I'll post a link to the reducer you need to find. I'll edit this post and add it.

    Tom


    EDIT: Check here for a photo of what you need. http://www.chicompany.net/index.php?main_page=product_info&products_id=417
    5th item down, Cat.# 04C03366

    This is a food grade stainless steel fitting but they make them in brass and gasoline compatible plastic as well.
     
    #15 2door, Oct 3, 2012
    Last edited: Oct 3, 2012
  16. obadboystanley

    obadboystanley New Member

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  17. obadboystanley

    obadboystanley New Member

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    I ended up getting this and it worked great.
    http://www.motionpro.com/motorcycle/partno/12-0046
    I got the bike running, and I love it I m still breaking it in, but everything is running smooth so far.
    ill make a post with the build.
    Thanks fellas.
     

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