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What's a normal idle RPM for a kat?

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  • #1

    What's a normal idle RPM for a kat?

    I just recently acquired a 2002 Kat 600 and when the engine is all warm after riding for a bit, it idles at around 2500 rpm. Like at stop lights and stuff. Is that a normal idle speed for a warm engine on a katana? It seems just a little high compared to my old bike, but that was a 1989 Ninja so I don't really know how to compare them.

    Also, what grade of fuel do you guys put in? My old ninja required 92 octane, but the previous owner of my kat said that he just put in 87 and it was fine. Thoughts?

    Thanks, sorry I'm still a noob with the Katana stuff
    Tags: None
  • #2
    87 octane, 1100 - 1400 rpm
    90% of motorcycle forum members do not have a service manual for their bike.

    Originally posted by Badfaerie
    I love how the most ignorant people I have met are the ones that fling the word "ignorant" around like it's an insult, or poo. Maybe they think it means poo
    Originally posted by soulless kaos
    but personaly I dont see a point in a 1000 you can get the same power from a properly tuned 600 with less weight and better handeling.

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    • #3
      How would I go about lowering the idle RPM speed, what could be the cause of a high idle?

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      • #4
        Originally posted by TheChariot77 View Post
        How would I go about lowering the idle RPM speed, what could be the cause of a high idle?
        dirty carbs, vacuum leaks, air leaks, improper equiptment, fuel in oil (associated with dirty carbs generally)...

        Krey
        93 750 Kat



        Modified Swingarm, 5.5 GSXR Rear with 180/55 and 520 Chain, 750 to 600 Tail conversion, more to come. Long Term Project build thread http://katriders.com/vb/showthread.php?t=96736

        "I've done this a thousand times before. What could possibly go wron.... Ooops!"

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        • #5
          Originally posted by TheChariot77 View Post
          How would I go about lowering the idle RPM speed, what could be the cause of a high idle?
          Well I think first you should find out if the issue is with something else other than changing idling speed. I would check what Krey suggested then move on to adjusting idle ONCE everything else checks out. No point in putting a "band-aid" over it, might as well fix it! Btw, did you get a service manual for the Kat? There is an idle adjuster on the left side of the bike, black little knob you can turn. Check by your left knee position. Also, service manual is a great investment!
          - = Dane = -

          "Everybody knows it ain't tricking if you got it"

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          • #6
            Welcome to kr

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