Removing broken air/fuel screw

[atchbo]

Does anyone have a suggestion for removing a busted idle screw tip from inside my carb? I wondered why my Colortune didn't show any difference when the screw was adjusted. And assuming I can fix this, where can you get a replacement screw?

My carbs are BS34 CV carbs for the 1977 GS400B.

Thanks in advance for any help.

[Steve]

On the couple that I have had to do, I have found that the tip sticks into the throat ever so slightly. I have taken a Philips screwdriver (or other metal rod) and rolled it over the tip, pushing it back up. The ones I did snapped out of the holes, I feel fortunate for that, hope yours go as easily.

.

[Guest]

you can try boiling them aswell, some people have had success with that. Another person put a wire (I cut a piece off my wire brush) in a match stick, bent it at a 90 degree angle and managed to poke it out. Unfortunately I had to make my own centre punch and come from the top down using a hammer..wouldn't suggest it, but it got it out. best of luck.

[almarconi]

a dental pick will work..its hardened.