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Bogging at 8k RPM

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  • #1

    Bogging at 8k RPM

    Well I got the carbs rebuilt and the valves adjusted. Bike starts up and idles fine with no choke and the power in the mid range is better.

    Unfortunately when I'm on the highway the bike seems to run outta power around 8k when WOT. I've tried pulling the choke out but it doesn't help. Any ideas?

    OEM fuel filter and nonOEM air filter. I'm guessing a vacuum leak?
    Tags: None
  • #2
    What air filters are you using. PODs?
    "I'm sorry, I didn't mean to upset you when I called you stupid. I thought you already knew..."
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    • #3
      Originally posted by Lostidentity View Post
      ... nonOEM air filter.
      I'd start there...

      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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      • #4
        Main jet fell out in #3.... I thought I had cranked them down hard enough but was wrong. So I guess the bike runs with a jet in the floatbowl.

        Everything works great now. Still have nonOEM filter.

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        • #5
          Which filter? K&N or other hi-flow filters do not deliver best results. Lean out the bike too much. Emgo or other OEM type filters should be fine.
          1998 Katana 750
          1992 Katana 1100
          2006 Ninja 250

          2006 Katana 600 RIP - 130k miles

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