SOHC.co.uk Forums > CB350/400

400 four main jet o ring

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exvalvesetdabbler:
I'm trying to get some o rings for the carb internals and have managed to size most of them except for the push fit main jet. I have crawled the net on and off over the last few days and not come up with anything convincing.  4.2 x 1.1  or 3.2 x 1.2 seems popular.  But looking at the measurements, neither  size is going to be a very snug fit.

I'd rather buy a bag full from a reputable source as opposed to just buying four at silly prices + postage.

I don't like reusing rings and don't see it as  sustainable to keep buying carb kits just for the sake of one o ring.  In other words it's a PITA having to buy kits just to pop out the emulsion tubes and ensure they are clear and free of corrosion.

Does any one know the right size?

Regards
Dave

Athame57:
I think you need to pm Nurse Julie for them!  ;)

exvalvesetdabbler:
I just need the size, I'm amazed that even now these things are still closely guarded secrets.


Regards
Dave

Oddjob:
Assuming the jets are the same as the 500/550/750, which I think is a reasonable assumption, then according to the genuine Honda parts book they are 4.2x1.1.

exvalvesetdabbler:
Thanks Ken,


That's what I'm finding, just seems like they're going to be a loose fit.

Regards
Dave

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