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Author Topic: Sealant on CR carb spigots??  (Read 888 times)

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Offline cbr954

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Sealant on CR carb spigots??
« on: August 01, 2014, 07:29:30 PM »
Just bought some Keihin CR31 carbs.  What should I use on the threads on the spigots?  I would have thought it would say in the instruction book but it doesn't.
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03 CBR954RR, 72 750 chopper(970cc
F2 head), 2017 CRF450R, 2001 CR250R, 72 CB500, 79 XR250, 04 CRF50,70's soon to be rebuilt cb750 drag bike.

Offline cbr954

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Re: Sealant on CR carb spigots??
« Reply #1 on: August 02, 2014, 04:52:09 PM »
I got it together.  Moderator can delete this topic.
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03 CBR954RR, 72 750 chopper(970cc
F2 head), 2017 CRF450R, 2001 CR250R, 72 CB500, 79 XR250, 04 CRF50,70's soon to be rebuilt cb750 drag bike.

Offline Terry in Australia

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Re: Sealant on CR carb spigots??
« Reply #2 on: August 02, 2014, 05:07:53 PM »
I used some blue thread sealant on my 29's mate, just to stop any air from being sucked in. It probably wasn't necessary with the "O" rings, but I didn't want to pull them off again. Have you got it running with the 31's? I've got a set here but haven't installed them yet. Cheers, Terry. ;D
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Offline cbr954

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Re: Sealant on CR carb spigots??
« Reply #3 on: August 02, 2014, 07:15:43 PM »
Yes just got it going today.  Its on a F2 headed 970, still playing with the jetting, vast improvement over the stock carbs.  So far I am happy :)
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03 CBR954RR, 72 750 chopper(970cc
F2 head), 2017 CRF450R, 2001 CR250R, 72 CB500, 79 XR250, 04 CRF50,70's soon to be rebuilt cb750 drag bike.

Offline cbr954

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Re: Sealant on CR carb spigots??
« Reply #4 on: August 02, 2014, 07:46:05 PM »
Has anyone else used the cr31 on a 970 motor or similar size?  If so I am interested in what you ended up with for main jet size , etc.
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03 CBR954RR, 72 750 chopper(970cc
F2 head), 2017 CRF450R, 2001 CR250R, 72 CB500, 79 XR250, 04 CRF50,70's soon to be rebuilt cb750 drag bike.
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