CBR 600F 1987 - 1990 CBR 600F Forum

idle jumps

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Old Feb 10, 2008 | 05:11 PM
  #1  
89cane's Avatar
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From: Lincoln, Ca
Default idle jumps

when i am on my bike the rpms jump around not more then like 300-400 but enought to feel wrong i was wondering if this is normal and as i assume it is not how to correct the problem and i was going to see if anyone had any sound clips of their bike running at an idle to hear how they sound and how off mine is.

thanks for the help also does any one know where to buy a jet kit thanks
 
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Old Feb 10, 2008 | 08:42 PM
  #2  
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Default RE: idle jumps

dynojet or factory pro.

as for the jumping idle, you may have a intake leak somewhere or a vaccum hose is leaking.
 
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Old Feb 10, 2008 | 11:00 PM
  #3  
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Default RE: idle jumps

i think i am gonna git a dynojet kit and how might i go about the finding of a vacumme leak i just want it to idle better and not jump thanks
 
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Old Feb 10, 2008 | 11:43 PM
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Default RE: idle jumps

While the bike is running, take some carb cleaner and shoot it on the rubber manifolds that connect the carb to the head. If the rpms jump when you do it, there's a leaky manifold.


 
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Old Feb 11, 2008 | 09:27 AM
  #5  
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Default RE: idle jumps

alright ill try that this morning and post back thanks again
 
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Old Feb 11, 2008 | 11:15 AM
  #6  
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Default RE: idle jumps

ok i sprayed carb cleaner on the intake boots and when i hit one of them it reved up i geuss i need to replace that and could there be any other problems or just fix this and see what happens

does anybody know if the 1000 boots will fix the 600 thanks
 
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