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Speedo Jumpin' Around

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    Speedo Jumpin' Around

    I've been takin' the 1980 gs850 out and the speedo just started jumping around and then totally quit working. Then after a bump or some other reason, it will start working again, and then fail just as quickly. Any ideas?

    Scudder

    #2
    Cable come loose or broken I'd guess.
    79 GS1000S
    79 GS1000S (another one)
    80 GSX750
    80 GS550
    80 CB650 cafe racer
    75 PC50 - the one with OHV and pedals...
    75 TS100 - being ridden (suicidally) by my father

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      #3
      Replace the cable.
      sigpic

      82 GS850
      78 GS1000
      04 HD Fatboy

      ...............................____
      .................________-|___\____
      ..;.;;.:;:;.,;.|__(O)___|____/_(O)|

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        #4
        I try a few things before spending $$. I am a big fan of WD 40. (Curse they days they reformulated it). Give the cable a good squirt at both ends. If that doesn't work- or what they heck, do this while/before squirting---
        While undone, twist the lower end, does the top end turn too? Well, it taint broken. Maybe the WD will help.
        I've also stuck a flat head drill bit secured in a variable speed drill into the speedo and gave it some gentle juice to make sure the speedo is working correctly. Replacing speedos can be a tad $$$... been there/done that.
        -Bookmon

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          #5
          I believe your speedo is one of the magnetic drive type, these give up the ghost at some time and I think you reached that time. Only cure for this is find one that is still working (of which will die at sometime as well). I should know, I've bought no less then 4 stock instrument clusters for my bike so far. Of the 4, 3 have died as well. Now you can completely replace your instrument cluster with a total new systems that are available now. When #4 goes, I'll be going to one of these: http://trailtech.net/computers.html or http://www.kosonorthamerica.com/new/...orcycle_gauges
          or http://www.acewell-meter.com/c0_1.php?pid=15
          Last edited by mrbill5491; 03-29-2012, 12:25 PM.
          sigpicMrBill Been a GSR member on and off since April 2002
          1980 GS 750E Bought new in Feb of 1980
          2015 CAN AM RTS


          Stuff I've done to my bike:dancing: 1100E front end with new Sonic springs, 1100E swing arm conversion with new Progressive shocks installed, 530 sprockets/chain conversion, new SS brake lines, new brake pads. New SS fasteners through out. Rebuilt carbs, new EBC clutch springs and horn installed. New paint. Motor runs strong.

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            #6
            Thanks. I'll take a closer look at the cable first, if that is the problem, great. Then if the speedo needs to be replace, that will be next. Thanks a million.

            Scudder

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