CBR 600F3 1995 - 1998 CBR 600F3 Forum

Stock carb position

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Old 06-25-2010, 03:45 PM
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Default Stock carb position

Ok had my mechanic buddy come over and said whoever did my jet kit was a moron. My carb setup is below.


Left High, middle low, Middle High, Right Low

he said it should be low,high,high,low (think that is what he said)
 
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Old 06-25-2010, 07:49 PM
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Originally Posted by bammerman
Ok had my mechanic buddy come over and said whoever did my jet kit was a moron. My carb setup is below.


Left High, middle low, Middle High, Right Low

he said it should be low,high,high,low (think that is what he said)
Start in the middle.All needles in the middle,at first.

Pull plugs,and move the needle accordingly,only if it needs to be moved.
 
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Old 06-25-2010, 07:59 PM
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Not sure what you mean by high / low but the smaller jets are on 1 & 4. Larger jets are on 2 & 3
 
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Old 06-25-2010, 10:45 PM
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the height of the carb
 
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Old 07-10-2010, 12:36 PM
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A mechanic friend said the ones on the left and right should be higher than the middle ones. that is how it has been on all the bikes he has worked on. this is my setup.
 
Attached Thumbnails Stock carb position-imag0156.jpg  
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Old 07-10-2010, 02:00 PM
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Does it effect performance? Because I don't think I put mine correctly then.
 
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Old 07-10-2010, 02:53 PM
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Those are bloody velocity stacks lads...
I have shorter once in the middle and longer one on either side, mind you when i put them back in i couldnt remember which way thy were in the first place.
 
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Old 07-10-2010, 02:55 PM
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They effect air intake.
The shorter they are the more air will go in.
Because cylinders 2 and 3 are in the middle of the engine they run hotter, so need more air and they always have bigger jets in the carbs then the outside cylinders.
 
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Old 07-10-2010, 02:59 PM
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oh..I'll have to check mine then. Learn something everyday on this forum
 
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Old 07-11-2010, 11:31 AM
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Originally Posted by land_warrior.rus
They effect air intake.
The shorter they are the more air will go in.
Because cylinders 2 and 3 are in the middle of the engine they run hotter, so need more air and they always have bigger jets in the carbs then the outside cylinders.

my f3 manual shows shorter ones on the outside... i dont think the shorter they are, the more air goes in. not trying to argue you wrong, because i really have no idea. but MY assumption would be that they are set up L:sm, lrg, lrg, sm:R to try regulating the flow of the air inside of the airbox, making kind of an aerodynamic to provide all cylinders with an even amount of air.....
 

Last edited by Will.Bass; 07-11-2010 at 11:40 AM.


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