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Re Jetting a GS650e carbs

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    Re Jetting a GS650e carbs

    SOOOOOOO! My son and I are rebuilding the GS650 and having a friend build us a custom exhaust, putting K&N pods on it and I just got our Dynojet 3 jetting kit. Christ, this thing came with DRILL BITS but NO INSTRUCTIONS!!! OK so I'm not helpless and I figured hey, they just forgot to put them in the kit. I emailed them and I get the following reply back:

    Dear Bob.

    We regret to inform you that we no longer have instructions for this Jet kit. If you need help you can call us at 866-GOOD LUCK!!!!

    Dynojet Customer Service.

    SOOOOOO. Might anyone out there have instructions for anything SIMILAR??? I mean how different can the 81 GS650e be from the rest of the similar bikes? I don't know but I'm HOPING one of you all has something that we can use as a guide before we drill out the wrong thing!

    HELP?
    Peace
    Peewee

    #2
    Hi,

    There are a bunch of PDF files with installation instructions here:

    Develop a great plan for boosting your motorcycle’s performance by using our convenient, reliable motorcycle carburetor Jet Kits available online. Once you see these kits in action, it will become clear why they’re the products that started the Dynojet fuel tuning legacy. They’ll effortlessly increase power and smoothness throughout the entire rev range. Whether your bike is stock, heavily modified, or created for high-speed racing, our Jet Kits can tune your air/fuel ratio to perfection. Not only will our motorcycle Jet Kits drastically improve your performance, but they’ll also show immediate results. With an increased power output of 5-8% and a fully adjustable design, our kits are the perfect companions to any rider. Expand your vehicle’s performance capabilities today with them.


    But you are right, the GS650 is conspicuously absent.

    I suppose you could use the GS700 PDF as a guideline, knowing that you have different sized jets. It should pretty much be 'plug-n-play' with a little adjustments in the needles.


    Thank you for your indulgence,

    BassCliff

    Comment


      #3
      I would jet it rich and then test it once everything is together. Safer to run a bit rich than to be lean even for a short time.
      FWIW I run a DJ 124 which is equivalent to a 116 Suzuki on my 650 with a 4-1 and stock airbox. I would go with a 117.5 to start unless you have a really open pipe, in that case a 120 would be an appropriate starting point. I didn't raise the needles but once I get back on the road this spring I will test a single washer shim under them and see what the plugs look like,

      You really need to do plug chops to verify what is going on. I have a color tune which is great for setting the mixture screws and looking for obvious lean outs but nothing beats high gear, high speed shutoffs to test what the mixture is on the mains under load.
      1981 GS650G , all the bike you need
      1980 GS1000G Power corrupts, and absolute power corrupts absolutely

      Comment


        #4
        VM32's right?
        Try to find instuctions for a like bike. A 81-82 850 maybe?
        Should be close to the same except the main jets might be smaller.
        At very least it'll tell ya which drill bit is for the slides(I think its the smaller one if my memory serves), and how to drill the slides. Also give you some idea whats what..
        If it were me I'd use the largest main it comes with and put the clip in the middle setting.
        sigpic

        82 GS850
        78 GS1000
        04 HD Fatboy

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

        Comment


          #5
          Thanks

          Originally posted by BassCliff View Post
          Hi,

          There are a bunch of PDF files with installation instructions here:

          Develop a great plan for boosting your motorcycle’s performance by using our convenient, reliable motorcycle carburetor Jet Kits available online. Once you see these kits in action, it will become clear why they’re the products that started the Dynojet fuel tuning legacy. They’ll effortlessly increase power and smoothness throughout the entire rev range. Whether your bike is stock, heavily modified, or created for high-speed racing, our Jet Kits can tune your air/fuel ratio to perfection. Not only will our motorcycle Jet Kits drastically improve your performance, but they’ll also show immediate results. With an increased power output of 5-8% and a fully adjustable design, our kits are the perfect companions to any rider. Expand your vehicle’s performance capabilities today with them.


          But you are right, the GS650 is conspicuously absent.

          I suppose you could use the GS700 PDF as a guideline, knowing that you have different sized jets. It should pretty much be 'plug-n-play' with a little adjustments in the needles.


          Thank you for your indulgence,

          BassCliff

          Thanks Bass

          I got an instruction from the 700 that have to be close enough to get me where I need to be. Getting the exhaust mocked up next week so hopefully we can get it running in a few weeks. SWEET!!!!!

          Thanks again
          Peace
          Peewee

          Comment

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