Topic: 1976 CB550- cleaning carbs (069A)

[steamnjn23]

when cleaning the slow jet, (the one that has the emulsion tube made onto it,) is there a "baffle"type restriction inside it, preventing a small wire from being pushed thru it,   
or does it simply "neck down" inside the casing somewhere requiring an even smaller wire?

i can see a bit of daylight thru it, but it doesnt seem to be completely clear...maybe i need more cleaning.
what do you guys think?

by the way, has anyone done a cut-away of these carbs, maping all the circuits?

[Deltarider]

is there a "baffle"type restriction inside it, preventing a small wire from being pushed thru it, or does it simply "neck down" inside the casing somewhere requiring an even smaller wire?

I don't know if I understand what you mean, anyway inside the jet it's even narrower than at the ends. It's meant so. Use a smaller wire and make sure the material of the wire is softer than the messing of the jet.

[steamnjn23]

delta, you are answering exactly what i'm asking. 
i have a wire that fits inside the jet comfortably, but at some point it stops. 
so i was wondering if there was even a smaller hole deeper inside, than the one on the end.

i just want to make sure its clean and not leave behind some crud.

thanks for your insite

[TwoTired]

The pilot jet has an orifice inside it of 0.38mm in diameter.  That's 0.015 inches, so your wire must be smaller than that to fit though the internal orifice.

[Lars]

A "hair" from a steel brush fits in. But be carefull with ANY holes in any of the jets, not to press power making the holes bigger than the original! If any doubt, replace the part.
Usually they clean up amd I prefer to use the original brass parts in a carb. Compressed air is a very usefull tool.

Lars

[steamnjn23]

i was using 1 strand of copper wire from a 16 gauge wire to work my way thru. 
2 strands was too much.(which prompted the question)

i used a bright flashlight and saw the even smaller orifice deeper inside. thanks TT.

to add to  the cleaning action, i added a few ridges to my single strand wire to help with the cleaning action(similar in looks to waves on a oscilloscope)

they are clean now and reinstalled.