Topic: Broken Carb advice

[macvit7906]

Hi All,

I had an old send of 064A (1975 cb750F) carbs laying around and I figured I would try to clean them up and put them to use. After an ultrasonic cleaning, all of the metal inside the bowl was badly pitted. So much so that the emulsion tube towers were so bad that there were no threads left to thread in the tube. all four were like the picture attached.

I took it to a great tig welder that helps me out from time to time, but we were unable to weld and fix this old "pot metal" with some fresh aluminum rods (that i was planning to drill and tap)

All the passages are clean and the rest of the threads are in good shape, these carbs WOULD work if I could figure out a way to get the emulsion tubes in. JB weld is not an option, as the gasoline would eventually eat it.

Any of you know of "shorter" emulsion tubes that would work from a different bike, or a way to repair this? Or should I call it quits and trash them?

 

[dave500]

their #$%*ed,time to bite the bullet,keep what ever bits you can,bless them then toss them.

[Ace Blackwell]

Hard to tell from the picture but there still seems to be some interference between jet and tube.  Have you tried retapping hole and see if the jet draws tight?

[Trav-i]

I second what Dave has said.  Save all the parts that you can from it and toss the body.  The amount of time and effort you would put in to possibly fixing it won't be worth it.

[macvit7906]

I second what Dave has said.  Save all the parts that you can from it and toss the body.  The amount of time and effort you would put in to possibly fixing it won't be worth it.

I figured. Thanks guys