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GS850G Flat spot at 6000rpm

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    GS850G Flat spot at 6000rpm

    I have a '81-'83 Gs850 G, i had a flat spot at 6000 rpm, I removed the carbs, cleaned them proparly. I set the float levels to the correct spec(it was to full)

    Now at least i get past the flat spot, but it is still there between 5800 & 6300 rpm & then it will only rev up to 8400 rpm, regardless which Gear.

    Please any good advice?

    #2
    Factory airbox, pods. Factory exhaust? Jetting mods?

    Welcome to the forums!
    sigpic

    82 GS850
    78 GS1000
    04 HD Fatboy

    ...............................____
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      #3
      Yes, Awesome Forum,
      Factory Airbox
      4 into 1 Zoshirushji
      I think the jettinf is standard
      Don't know what pods are?

      My first Bike

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        #4
        Stupid Question?



        I found that my rectifier isn't feeding more than 12 volts

        This would'nt have an effect on problem?

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          #5
          Surprising, yes it does have an effect

          Gustav had the same problem with his project bike recently, fixed the electrical problem and no more running issues
          1978 GS 1000 (since new)
          1979 GS 1000 (The Fridge, superbike replica project)
          1978 GS 1000 (parts)
          1981 GS 850 (anyone want a project?)
          1981 GPZ 550 (backroad screamer)
          1970 450 Mk IIID (THUMP!)
          2007 DRz 400S
          1999 ATK 490ES
          1994 DR 350SES

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            #6
            Yes, thanx for the advice guys, will check all the tips this weekend and then run it

            Comment


              #7
              I am having a similar issue. Let me know what fixes it for you!

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                #8
                I had a similar flat spot. Later during same summer (2 years ago) i had a charging issue,change the stator and flatspot is gone since. My carb are stock as well as pipes.

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