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1977 GS-750 re-jet. Here is where I am at.

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    #31
    I'd leave the needle where it was if the bike was running ok off full throttle. Concentrate on getting the mains right first, sort everything else later.
    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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      #32
      Originally posted by hampshirehog View Post
      I'd leave the needle where it was if the bike was running ok off full throttle. Concentrate on getting the mains right first, sort everything else later.
      A local shop where I get jets has told me that the Emgo's do not flow well, as compared to K & N's and, as such, said it would be trickier to jet the bike. Not impossible though.

      Tom

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        #33
        I've never tried Emgos but have used cheaper 'K&N copies' (which look similar to Emgos) and whether they flow as well as K&Ns I've no idea. I've also used K&Ns, foam filters and bellmouths (I think you call them velocity stacks) on various bikes.

        I can't see why the shop thinks jetting will be more difficult - you have to re-jet for changes to the air intake and both Emgo and K&N are significant changes. It'll probably be different, just as different bike wearing the same set up can be different, but not trickier.

        The crack is to break your carb tuning into stages and master each stage independently. You may have to fine tune at the end to match the different stages but you're gonna be pretty close by then.
        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

        Comment

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