Author Topic: Keihin CR 29 carbs  (Read 4029 times)

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Offline swellguy

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Keihin CR 29 carbs
« on: January 26, 2011, 12:23:09 pm »
I guess I'm not as familiar with these carbs as I thought I was.

I noticed that on the sides of #3 and #4 carbs there are these extra spigots:



I thought they might have been the carb bowl vent/overflow outlet but noticed that they are not present on carbs #1 and #2. Looking at the bottom, there are no vents:



I haven't confused these with the fuel inlets because I know where they are. Can anyone tell me what these two extra nozzles are for?
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Offline scondon

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Re: Keihin CR 29 carbs
« Reply #1 on: January 26, 2011, 12:34:20 pm »
Pictures are small, but I think you are talking about the air intakes for the choke circuit. There should be one on all four carbs, unless the design has been changed in the past 8 years???
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Offline Silverback

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Re: Keihin CR 29 carbs
« Reply #2 on: January 26, 2011, 01:42:21 pm »
All the CR29 I have seen have them on all four carbs. Odd!
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Offline scondon

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Re: Keihin CR 29 carbs
« Reply #3 on: January 26, 2011, 02:53:57 pm »
They do swivel, so maybe the other two are just pointed up/forward and are not visible from underneath?
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Offline swellguy

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Re: Keihin CR 29 carbs
« Reply #4 on: January 26, 2011, 03:28:52 pm »
They do swivel but I swear there aren't any on carbs 1 & 2.
I'll take a closer look and post some larger pics.
Thanks in advance.
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Offline sparty

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Re: Keihin CR 29 carbs
« Reply #5 on: January 26, 2011, 04:15:08 pm »
Trust me, you have them on all 4 carbs.  Otherwise the carb bank would not work.

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Offline swellguy

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Re: Keihin CR 29 carbs
« Reply #6 on: January 26, 2011, 04:20:35 pm »
Trust me, you have them on all 4 carbs.  Otherwise the carb bank would not work.
I do trust you. I had to put on 3x magnifiers to actually see the ones on 1 & 2.
Anyways, here's the better picture:



So they do look like the air intakes for the choke circuits. Since they swivel 360 degrees, I'm wondering if there is an ideal position for them?
« Last Edit: January 26, 2011, 05:38:05 pm by swellguy »
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