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Different Petcock question

Discussion in 'XJ Technical Chat' started by CJmaxim, Feb 2, 2012.

  1. CJmaxim

    CJmaxim Member

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    I'm swapping a 69-73 Honda CB750 tank onto my maxim 550. The cb tank has 2 fuel lines coming out of the petcock and no vacuum line.
    This is what it looks like:

    http://www.cb750supply.com/parts/480/20-8039.jpg


    My question; Can I just "T" the 2 fuel lines together to run it to the 1 fuel line on my maxim?
    Also, would I just cap off the vacuum port at the intake boot? I noticed chacal carries a non vacuum replacement petcock, so there has to be a work around. Would that, in turn, mean I would need to manually turn the petcock to Off whenever I get off?
    I've looked for a vacuum petcock replacement for the CB tank but I can't find one.
     
    CJmaxim, Feb 2, 2012
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  2. SecaSuca

    SecaSuca Member

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    that sounds like the obvious approach.
    and YES, you would have to turn of the valve when you parked it.
     
    SecaSuca, Feb 2, 2012
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  3. MiCarl

    MiCarl Active Member

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    No need to T them, just cap one off.
     
    MiCarl, Feb 2, 2012
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  4. CJmaxim

    CJmaxim Member

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    @MiCarl: That's what I was wondering at first. Didn't know if it would create some weird suction though, or not feed enough gas.
     
    CJmaxim, Feb 2, 2012
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  5. MiCarl

    MiCarl Active Member

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    They both go to the same internal passage. Honda ran a separate hose to each carburetor.

    It might not feed enough gas just using one though. You'll have to compare to the stock nipple to get a feel for if you need to use both. Of course if you use that size line after your T you won't get more gas anyhow.
     
    MiCarl, Feb 2, 2012
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