Topic: VM29's emulsion tube threads are stripped on the carb body

[Turbogrimace]

How the heck am I going to fix this?  Has anyone dealt with this before?  These carbs were built for constant jetting changes and I guess someone went one too many turns at some point and stripped out the threads on the emulsion tube.  I was thinking jb weld as the quick fix, but is there a way to helicoil this?  Has anyone done this before?  Know the thread dimensions?

Any information would be great, thanks fellas.  My 836 is fiending for fuel.

[BLUE71TURBO]

HEY GRIMACE !  I had the same problem on a set of 29 smoothbores, 2 bodies were stripped.  DEVCON is the best stuff in my opinion.  I used a flat tooth pick and smeared a little on the threads and installed the tubes. Then i smeared a little more around the base of the tube. I then let it sit for 24 hours, then installed the carbs, and never had a problem again. I even did jet changes many times as i had them on a 1132 kawasaki that i had over the years. They are still being used now on another bike !!   

[Turbogrimace]

Will the Devcon allow me to take the emulsion tube out at a later time or is it permanent?

Sounds like a good idea so far!

[BLUE71TURBO]

PERMANENT !   

[Turbogrimace]

NOOOOOOOOOOOOOOOOOOOOOOo hahaha.

Doesnt the emulsion tube thread into the Jet block?  If so, I could take the jet block out plug it and retap it.  That or Sudco still has a PN for it, I might see how much it costs.  Does this sound right?

[BLUE71TURBO]

The emulsion tube screws into the aluminum body. Here is an exploded view of the carbs. When you get the picture, left click on the diagram to enlarge it. # 42 needle jet just screws into the body, no other piece is there. 
Good luck !       http://www.pjmotorsports.com/Jets%20Pics/expvm29.gif

[Turbogrimace]

What I'm saying is that the needle jet screws into the Jet block, not the carb body.

[BLUE71TURBO]

Hell, it's been so long sense i have seen the insides of a mikuni. I run a SU carb on my turbo. I'll have to take a trip to my friends shop and take a look at a carb to see what yer talking about.  

Also your post state's "emulsion tube threads are stripped on the carb body"  ?

[Turbogrimace]

Yeah, that was waay back in the day when I just got these carbs (yesterday) and thought that the ET was tapped into the carb body.  I should change the title, but it's not really broken, just wrong.