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    airbox issue

    Hi
    I Have a 1977 GS750
    I have been having problems
    No power over 5000 revs under load just starts cutting out
    Thought it might be carbs or airbox issue so put my mates airbox carbs and tank on mine and put mine on his
    Both ran like a dream
    Swapped them back over and still had same issue
    Swapped his airbox for mine
    Ran like a dream
    Cleaned my air filter re oiled it
    Still same issue
    Someone tell me I'm not going mad
    Help would be great
    Thanks
    Marco

    #2
    Originally posted by Mafiera View Post
    Hi
    I Have a 1977 GS750
    I have been having problems
    No power over 5000 revs under load just starts cutting out
    Thought it might be carbs or airbox issue so put my mates airbox carbs and tank on mine and put mine on his
    Both ran like a dream
    Swapped them back over and still had same issue
    Swapped his airbox for mine
    Ran like a dream
    Cleaned my air filter re oiled it
    Still same issue
    Someone tell me I'm not going mad
    Help would be great
    Thanks
    Marco
    Have you inspected both airboxes and found anything different?
    Ian

    1982 GS650GLZ
    1982 XS650

    Comment


      #3
      Not we can see

      Comment


        #4
        Any difference in how your bikes are tuned? Exhaust, jetting?
        Ian

        1982 GS650GLZ
        1982 XS650

        Comment


          #5
          didn't see where you mentioned it, but what if you swap just the air filters? Filters could easily make a difference, don't see it for the actual box.
          1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

          Comment


            #6
            Originally posted by timebombprod View Post
            Have you inspected both airboxes and found anything different?
            1977 do you still have points ...If so your problems might begin there hard to distinguish, at times...Good Luck..
            sigpic 82 gs1100ez 1168 Wiseco,Web .348 Cams,Falicon Sprockets,Star Racing Ported Head,1mm o/s Stainless Valves,APE Springs,Bronze Guides,etc.APE Billet Tensioner,36CV Carbs,Stage 3 Dynojet,Plenum w/K&N filter,Trued,Welded,Balanced,Crank w/Katana rods & Billet left end, FBG backcut trans, VHR HD Clutch basket,APE nut,VHR High volume oil pump gears,1150 Oil cooler,V&H Megaphone header w/Competition baffle,Dyna S,Coils,Wires,etc.Other misc.mods.

            Comment


              #7
              Lots of times ignition-related problems masquerade as carb problems. Ditto on gs11ezyrydr: check and replace your plugs, point set up (if you still have points), etc.

              It sounds like your buddy's bike runs great, even when it is using all the carb/intake parts from YOUR bike - is that correct? If so, that suggests that the carb/intake parts aren't the problem.

              Good luck and keep us posted, and ask if you have more questions!

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