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carb help? 19 Feb 2007 17:05 #113665

  • boomboom45
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i just cleaned out my carbs, and removed the airbox, but my idle is way to high, about 5500 rpm. the idle screw is backed all the way out, and i cant find any loose hoses, anyone have any ideas?

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carb help? 19 Feb 2007 17:10 #113666

  • pyxen
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is your choke set up properly?
84 KZ550-F2 LTD
93 ZR550-B4

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carb help? 19 Feb 2007 17:27 #113674

  • boomboom45
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first thing i checked, but ill recheck it

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carb help? 19 Feb 2007 19:23 #113717

  • arobsum
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look for a big air leak maybe?

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carb help? 19 Feb 2007 21:20 #113767

  • Kiwiz
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Throttle cables snagged, out of their stops etc?

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carb help? 20 Feb 2007 05:04 #113792

  • boomboom45
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checked that, everything is good.

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carb help? 20 Feb 2007 05:05 #113793

  • boomboom45
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where would i look? i checked the carbs, and i didnt feel or hear anything.

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carb help? 20 Feb 2007 10:55 #113888

  • Kiwiz
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What sort of carbs are they? Convenional slide or diagphram?

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carb help? 20 Feb 2007 11:16 #113892

  • Patton
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boomboom45 wrote:

where would i look? i checked the carbs, and i didnt feel or hear anything.



With engine running, could spray propane gas, WD40, or starting fluid, around the intake manifolds. A leak will usually suck in enough spray to cause a noticable difference in rpm. This should help diagnose whether there's a leaking intake manifold (torn or cracked) or maybe just a loose or ill-fitting clamp.:)
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carb help? 20 Feb 2007 11:22 #113894

  • Patton
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boomboom45 wrote:

i just cleaned out my carbs, and removed the airbox, but my idle is way to high, about 5500 rpm. the idle screw is backed all the way out, and i cant find any loose hoses, anyone have any ideas?



Were any sync adjustments done, either on the bench or on engine while running? :unsure:
1973 Z1
KZ900 LTD
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carb help? 20 Feb 2007 11:22 #113895

  • kano
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i would say that the clamp from cylinder rubber number 3 is stopping your butterfly s on the carb from shutting
its happened to me before.
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carb help? 20 Feb 2007 15:12 #113937

  • boomboom45
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which clamp? do i have to tear it down?

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