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1979 GS1000 Mods

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    1979 GS1000 Mods

    I currently have a 1979 GS1000 which runs a Vance Hines 4 into 1, Wiseco 1085 big bore kit, Dynajet Stage 3 kit on VM28's fitted with bellmouths, Dyna coils and Dyna S ignition and Falicon clutch. I am mulling over the idea of
    having the head gas flowed, fitment of Stage 1 cams and either Keihin CR33's or Mikuni's. Does anyone run a similar setup and does the performance gain warrant the cost?

    #2
    Or, you could bolt in a 16 valve 1100 or 1150 engine & get the same power stock, or with a few mods, as you will get building your 8 valver.
    Ray.

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      #3
      welcome back outlaw....

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        #4
        You have already done the other important parts why not let it breathe better now to take advantage of the other mods? Change the cams. I run .370/.370 and .390/.390 cams in my modified 1000's
        (currently 1085,1100 & 1115)
        I do not recommend going to the 33 carbs. Your 28's should work well or getting a set of 29 smooth bores might be a tad better. I believe that you can simply bore your 28' to 29mm and gain a little bit of flow also.

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          #5
          Originally posted by gs79 View Post
          ...does the performance gain warrant the cost?

          This is like asking how long is a piece of rope.

          Webcam in the US lists weld/regrind prices starting at $455. Carbs ain't cheap either - at least that much. Depending on your cams you may need springs - about $65. Add in gaskets and misc. crap and you are getting close to the cost of a faster bike. Not as cool as a GS though. At any rate, I guess it depends on how you qualify "worth it". If having a fast GS makes you happy then go for it. If you just want fast bike and don't care if it's a GS, then I'd say no.
          Last edited by Nessism; 01-11-2015, 10:32 PM.
          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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