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    petcock threads

    if any one has ever messed with the petcock what is the fuel line size and is that ID or OD. and second what size is the petcock threads. i called a place and there saying 3/8 pipe threads but i thought that they would be bigger

    #2
    What bike?

    The stock fuel line is 7mm. That makes it larger than 1/4" and smaller than 5/16".

    Petcock threads? All the petcocks I have seen on GS bikes had a large hole through which the filter and reserve assembly went, and two 6 x 1.0 mm theaded holes for the bolts. And why would anyone think there would be a 3/8 INCH thread on a METRIC bike?

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      #3
      its a 1980 gs 750. im trying to replace it but i dont have the money to spend on a 100 or so dollar petcock im gonna make my own but instead of buying it.

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        #4
        They sell them at www.z1enterprises.com for about $40. If one from an 83750ES will work for you I have one you can have for $20.

        It works but you'll need new O rings for the bolts. The body O ring itself doesn't look too bad.

        Dan
        1980 GS1000G - Sold
        1978 GS1000E - Finished!
        1980 GS550E - Fixed & given to a friend
        1983 GS750ES Special - Sold
        2009 KLR 650 - Sold - gone to TX!
        1982 GS1100G - Rebuilt and finished. - Sold
        2009 TE610 - Dual Sporting around dreaming of Dakar.....

        www.parasiticsanalytics.com

        TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

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