CBR 600F4 1999 - 2000 Honda CBR 600F4 Forum

Bogging/poor low RPM throttle response

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Old Dec 23, 2025 | 01:45 AM
  #11  
NowayPedro's Avatar
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Originally Posted by BreadBoiiy
Hi everyone, so it has been a while now and I got my CBR running almost perfectly again. After removing the air box above the carbs, I inspected ALL the tubes and found that one of the vacuum tubes is splitting from the end. After properly installing it back it fixed the bogging COMPLETELY.
No more stalling at idles, no more hesitation when leaving stop signs or lights. Nice, smooth pulls without issues. The CBR still has unstable idle RPM's because my fuel cut off relay is missing (it's on its way).
I will be fixing the tube soon so I will be adding a picture of the tube that I mean.
I also had my fuel pump fail on me due to poor connectors from the aftermarket fuel pump. I cut the connector and replaced it with wago clips to make sure that it never disconnects, while still leaving the option to replace the thing.
So I am very happy, as I said, I will be posting a photo of the tube and some other stuff that I fixed to make sure it runs like butter.
This is great news and thank you very much for the update. I know my breather pipe is in a state so I will replace it, although opening the filler cap didn't do the trick it's worth a try. P.
 
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Old Dec 23, 2025 | 01:08 PM
  #12  
BreadBoiiy's Avatar
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Talking Video on issue

Hi guys, so instead of adding a picture I decided to make a video on this problem.
I posted it on youtube, the link to the video --->
It's a 48 minute video.
I hope this video will help you guys with your issues as I went through a lot to fix mine.
Thank you all for the support!

~Breadboiiy
 
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Old Dec 24, 2025 | 02:34 AM
  #13  
NowayPedro's Avatar
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Joined: Dec 2025
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Originally Posted by BreadBoiiy
Hi guys, so instead of adding a picture I decided to make a video on this problem.
I posted it on youtube, the link to the video ---> https://www.youtube.com/watch?v=agke4Vi5Cxs It's a 48 minute video.
I hope this video will help you guys with your issues as I went through a lot to fix mine.
Thank you all for the support!

~Breadboiiy
I really enjoyed this vid. Thanks so much for posting. P.
 
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