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    carb question

    Okay I have 78 Gs1000 that I have rebuilt the carb with new orings and gaskets.They are back to stock and the bike is stock accept some pods. I ran the bike today after syncing the carbs. It has great throttle response from the idle sitting on the stand but when riding it it falls on its face at around 5000rpm. I am guessing that i will need to increase the main jet does this sound correct. The carbs are all stock right now. Needle positions and all. It just seems like it is running out of fuel. I just want to make sure this sounds like the right direction...

    Thank Krank

    #2
    Yep, she'll run as weak as a spinach starved Popeye unless you pop in some bigger main jets and shift the jet needle clip down a notch. You're in to trial and error working out what size mains to plumb in but do a search on here and somebody might be using the same pods as you.
    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
      I'd go to 102.5 or 105 jet and raise the needle one notch
      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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        #4
        thanks everyone. T, Move the c clip down one notch to raise the needle up in position correct? are these the correct jets?


        They dont have 102.5 just 100's and 105's.

        thanks Krank

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