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Low compression numbers, is this a killer...

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    #16
    Personally I would check the valves, clean the carbs & try to get it running. If it will run, run it & worry about checking compression in 1000 miles or so....

    My Skunk got faster (presumably due to compression gains although I never checked) over a period of 1,000 miles or more when I put it back on the road.

    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..... - FOR SALE!

    www.parasiticsanalytics.com

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

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      #17
      Hey Mike,

      While you are working on other things, put some Marvel Mystery Oil in the cylinders and let them soak. MMO works wonders to free up stuck rings. Can't hurt, other than make a cloud of smoke when you first fire up the bike.
      Ed

      To measure is to know.

      Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

      Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

      Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

      KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

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        #18
        Originally posted by Nessism View Post
        Hey Mike,

        While you are working on other things, put some Marvel Mystery Oil in the cylinders and let them soak. MMO works wonders to free up stuck rings. Can't hurt, other than make a cloud of smoke when you first fire up the bike.
        Hi Ed,

        Sounds good, I'll do that... How much ya figure?? A couple of ounces in each cylinder?
        '85 GS550L - SOLD
        '85 GS550E - SOLD
        '82 GS650GL - SOLD
        '81 GS750L - SOLD
        '82 GS850GL - trusty steed
        '80 GS1100L - son's project bike
        '82 GS1100G - SOLD
        '81 GS1100E - Big Red (daily rider)

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