CBR 1000F "Hurricane" 1987-1996 CBR 1000F

90 CBR1000 runs but poorly...

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Old Jan 24, 2012 | 11:32 AM
  #11  
TimBucTwo's Avatar
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From: Bir Tawil
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Originally Posted by rvnkvn
Thank you! It does help. I tried to remove these on 1 carb but all it did was spin. wouldn't go in or out to clean out.These are only used to smooth out the idle AFTER the bike is running ,correct?
No. They should be adjusted the same. ( ie. all 2 1/2 turn out or all 2 3/4 turn out)

Smoothness is achieved after a vacuum balance. (setting the butterflies)
 
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Old Jan 24, 2012 | 06:55 PM
  #12  
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I had bench sync'ed the throttle blades,and fixed the bent choke actuator. I ordered some new intake to cylinder head boots from Service Honda. I'm just waiting on the parts to get here so I can see if i fixed everything.

Has anyone re routed the carb vent tubes away from the bottom of the bike with any success? I had t'ed the two lines into one and ran a single line to the top of the airbox. Its alot easier getting the air box in the bike without worring about pinching vents that way.

The other question i have is... how do you know the gas tank vent is working properly.I did recall a hissing noise shortly after the engine was shut off. Maybe this forced the fuel out of the vent tube??
 
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Old Jan 24, 2012 | 11:25 PM
  #13  
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Originally Posted by rvnkvn
...I did recall a hissing noise shortly after the engine was shut off. Maybe this forced the fuel out of the vent tube??
If you can buy or download the official Honda Manual, page 1-24 shows correct application and routing of vacuum lines. If you have a California model, page 1-25 shows correct routing of all those lines. If you hear hissing during running, check for missing caps on the balance ports on the carbs.
 
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Old Jan 25, 2012 | 07:48 AM
  #14  
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The noise is after the engine is shut off or dies, like the gas tank get pressurized. When It does run well enough to take gas while twisting the throttle, it " dumps" gas out the vent tube under deceleration.
 
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Old Jan 28, 2012 | 09:14 PM
  #15  
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i had to take the bowls off my carbs and put light pressuer on the air mix screws to back them out
and they were full of crud
 
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Old Jan 28, 2012 | 09:22 PM
  #16  
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I did not see a passage for the idle screws inside the float bowls anywhere....
 
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Old Jan 29, 2012 | 10:56 PM
  #17  
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the passage is in the carb body itself but mine had a stop in the idel screw and could only turn 3/4 turn i had to take the bowl off to take it compleetley out the carb bowl acts as the stop
 
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