CBR 600F4 1999 - 2000 Honda CBR 600F4 Forum

kleen air mod

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Old Feb 23, 2019 | 12:19 PM
  #11  
Brandon Siljeur's Avatar
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Default Brandon cbr 600 f4

Originally Posted by Denfrosnesko
You still need two big hoses on the airbox.. damn I can't remember exact which. If nobody else post before friday I will take a detailed picture of my setup. Works great and the bike puts down 102rwhp only with that, bigger jets and k&n filter.
hi could you please send me a pic of how these pipes all these pipes are connected as I am struggling to put the bike back together
 
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Old Feb 23, 2019 | 12:45 PM
  #12  
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From: Lancs ,UK
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Contacted an old post there but, this should help , but you wont need the Cali pipes if you dont live there
 
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Old Jun 23, 2022 | 05:45 AM
  #13  
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Originally Posted by Denfrosnesko
Yeah, free's up some hp.

Kleen air mod increases low end torque and you don't have to worry about hydrolocking.
Removing the pair valve saves a little weight and you get rid of something that isn't necessary.

If you remove it on your road bike you will probably fail inspection.


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hey Guys, im having problems with my cbr, bought last week from the previous owner ,since it doesn't want to go over a certain speed, i searched on the web and find put about this valve, i checked my bike and i don't have it, i have various tubes that are not attached to anything, it looks like the po tried to do this mod but now all i have are nightmares , please help me figure out what to do with this ​​​​​​​

The two black tubes coming ou of the carbs are like this, free without any other tube

This is also not attached


Two tubes closed and the long one going into the airbox
 
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Old Mar 14, 2026 | 03:32 PM
  #14  
SINrr's Avatar
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Originally Posted by Denfrosnesko
You still need two big hoses on the airbox.. damn I can't remember exact which. If nobody else post before friday I will take a detailed picture of my setup. Works great and the bike puts down 102rwhp only with that, bigger jets and k&n filter.
5/8 inner diameter incase anybody sees this in the future and needs to know.
 
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