Colortune

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  • Denman2112
    • Jan 2026

    #1

    Colortune

    Has anyone ever tried that Colortune gadget ?
  • Frank Z.
    Forum Sage
    Past Site Supporter
    • Sep 2009
    • 1458
    • Austin, TX

    #2
    Colortune apparently works well on VMs; not so much on CVs.
    '80 GS1000ST
    '92 ZX-11
    Past rides: '79 GS1000SN, '84 GPZ900R

    http://totalrider.com/

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    • steve murdoch
      Forum Guru
      Past Site Supporter
      • May 2004
      • 8491
      • St. Catharines, On.

      #3
      Some great info on the colortune in this thread. http://www.thegsresources.com/_forum...lortune-review
      A search will turn up a few of them.
      Denham, if you put your year, bike and model in your signature it could be easier to answer your questions.
      2@ \'78 GS1000

      Comment

      • chuck hahn
        Forum LongTimer
        Past Site Supporter
        • May 2009
        • 25918
        • Norman, Oklahoma

        #4
        The Colortune will let you see just when the fuel shuts off as youre turning the mixture screws in though. At that point I turn the screws out till the flame comes back and then add 1 turn . Then I ride it and see how she reacts to some punishment.
        MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
        1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

        NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


        I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

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        • Buffalo Bill
          Forum Guru
          Past Site Supporter
          Super Site Supporter
          • Jun 2008
          • 6004
          • New Buffalo, Michigan 49117

          #5
          Originally posted by Frank Z.
          Colortune apparently works well on VMs; not so much on CVs.
          Maybe so, I was getting a blue flame anyway I turned the air screw, 82 GS1100G.
          1982 GS1100G-
          1990 GSX750/1127
          1987 Honda CBR600F Hurricane
          1985 Kawasaki GPz750

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          • bwringer
            Forum LongTimer
            Bard Award Winner
            GSResource Superstar
            Past Site Supporter
            Super Site Supporter
            • Oct 2003
            • 17066
            • Indianapolis

            #6
            Originally posted by Frank Z.
            Colortune apparently works well on VMs; not so much on CVs.
            Originally posted by Buffalo Bill
            Maybe so, I was getting a blue flame anyway I turned the air screw, 82 GS1100G.
            Agreed. On VM carbs, it can be helpful to get you in the ballpark after rebuilding, but the fine-tuning is done by test riding -- generally you end up a little richer than the ColorTune indicates.

            On CV carbs, you don't really see any useful color change when you twiddle the air screws.

            All that said, it's a fascinating and beautiful glimpse into the combustion chamber. It's just only useful in a certain narrow set of circumstances, and it's certainly not required. But it is cool.
            Last edited by bwringer; 09-07-2016, 05:45 PM.
            1983 GS850G, Cosmos Blue.
            2005 KLR685, Aztec Pink - Turd II.3, the ReReReTurdening
            2015 Yamaha FJ-09, Magma Red Power Corrupts...
            Eat more venison.

            Please provide details. The GSR Hive Mind is nearly omniscient, but not yet clairvoyant.

            Celeriter equita, converteque saepe.

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            Co-host of "The Riding Obsession" sport-touring motorcycling podcast at tro.bike!

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