Question about Needle Jet Removal

[BillinSC]

I'm in the process of doing a carb cleaning on my "new to me" 1973 CB. I've got all the brass removed except the needle jet that is apparently pressed into the carb body.

Question, do you normally remove this part as part of the cleaning or leave it intact? What's the best way to remove it without causing damage?

Thanks

 

[UK K6]

I used a thin punch wrapped in a thin microfiber towel and tapped it out. Quite tight as I recall, but no damage. Had to do it twice, as the replacement brass was rubbish, so went back to the original.

I wouldn't remove it to clean the carb, but the emulsion tube definitely needs cleaning.

 

[BillinSC]

I used a thin punch wrapped in a thin microfiber towel and tapped it out. Quite tight as I recall, but no damage. Had to do it twice, as the replacement brass was rubbish, so went back to the original.

I wouldn't remove it to clean the carb, but the emulsion tube definitely needs cleaning.

Yeah, I'm debating on whether or not to remove them. I bought new OEM needle sets because a couple of the existing needles had some wear/damage and the OEM set (16012-300-014) comes with Needle, Jet and clip. Need to take a closer look at the jet and see if they're worn and worthy of replacing.

Also, these needle sets must be becoming very scarce since they discontinued them years ago. They're really gouging on the price at almost $40 a pop. But thats the price you pay for keeping these beauties up.

 

[Loki]

I might be wrong but I dont think the tube is a jet as it seems to be common to different needle sizes I think the jet as such is part of the emulsion tube, there shouldn't be any contact between the needle and the tube to cause wear so leave the tube where it is.

Loki

 

[dirtdigger]

I have never removed one. They do wear as the needle does move around a bit and does touch the "jet" which is more of a needle guide then a jet but you can normally compensate for wear with adjusting needle position if they get noticeable wear. If the needle it self is worn bad it may have also worn the "jet". I personally have not seen one worn enough to need replaced though, by then the rest of the carb is worn in other areas

 

[BillinSC]

A couple of them were questionable and all were pretty cruddy. Since the new needles came them I decide to change them as well just because I was there. They actually press out pretty easily using a 1/8" brass punch and light tapping. Pressing the new one in will require a 3/16" brass punch and some assembly lube. Prolly wasn't absolutely necessary but....