Cleaning Keihin Idle Jets

[Polymer-2]

I made a quick article for cleaning the Keihin idle jet and dropped it on the motorcycle DIY page on my web site.
If you are rebuilding your carbs check it out.

[Re-run]

I checked out the site and it look nice.
Are you sure the jets do not come out though? OK now I have a 1978 cb750 but the jets are press in too.
I can grip them with pliers wrapped with some rubber and twist and pull. They come out and you can then clean the emulsion holes. I would guess your would do the same thing.

[cbRider]

Hi re-run,
the idle jets on the bike in question, a 80-81 CB750F, are pressed in deep in a well and you can not get to them to pull the out. I wish it wasn't so. I think the way polymer is doing it is the only way. What might be a good thing to do is find a steel wire, one thousand of an inch larger than the jet and ream them out a hair because they are set too lean from the factory. It would have to be done very carefully because you can't replace them.

Karl

[Re-run]

Well that is pretty lousy that you cant even get to them with a needlenose. Makes seafoam a good friend to have around!

[cbRider]

Yea, after cleaning them with a wire and using seafoam for a couple of tanks of gas sure helps.
So far I wasn't able to find the size of the idle jet in order to ream the out a bit.

Karl