Broken Mixture Screw Tips

[ZombiePotatoSalad]

While cleaning the carburetor, I discovered that two of the mixture screw tips had lodged into the holes, and have broken off inside them. They're way down in the bottom, in the metal that separates the throat from the channel that the mixture screws go in.
It's the #3 and #4 carbs that have this issue.

What can I do to extract them?

[Big T]

Check the Basscliff site for the tutorial

[ZombiePotatoSalad]

Check the Basscliff site for the tutorial

I did. I think those are BS carbs they show Mine are CV, there's no access straight to the hole. It's a 90 degree angle. 1592007194516477013747336113456.jpg

[ZombiePotatoSalad]

here's the other one, from the top.15920072978304066139688556099475.jpg

[JTGS850GL]

I did. I think those are BS carbs they show Mine are CV, there's no access straight to the hole. It's a 90 degree angle. [ATTACH=CONFIG]61205[/ATTACH]

BS carbs are CV carbs. The mixture screws don't go through any 90 degree turn. The screws go straight down from the top and through to the inside barrel of the carb through that hole that looks like it's been prodded over and over. You can extract that by using a piece of bristle from a steel scratch brush like this one.:


https://www.grainger.com/product/1VA...g!471333877888!

You can find them most anywhere.

You just cut off one bristle and poke it up from the barrel towards the mixture screw inlet. Helps to use a pair of needle nose pliers to hold the bristle.

[ZombiePotatoSalad]

BS carbs are CV carbs. The mixture screws don't go through any 90 degree turn. The screws go straight down from the top and through to the inside barrel of the carb through that hole that looks like it's been prodded over and over. You can extract that by using a piece of bristle from a steel scratch brush like this one.:


https://www.grainger.com/product/1VA...g!471333877888!

You can find them most anywhere.

You just cut off one bristle and poke it up from the barrel towards the mixture screw inlet. Helps to use a pair of needle nose pliers to hold the bristle.

No, I'm saying the only thing that I saw on BassCliff's website showed a person using an awl to go straight down, perpendicular to the barrel, into the hole. I can't do that with my carbs.
As for poking something into the hole, would a sewing needs or pushpin work, or does it have to be one of those bristles? I tried it with a pushpin, and that just bends.

[Nessism]

You can make your own tool by bending the tip 90 degrees on an awl or pick. If there is a harbor freight in your area it might be worth a trip to see what kind of tools you can find.

[ZombiePotatoSalad]

I have one. However, the remains of the tip seem to be wedged tight.
I froze it for a day, and that didn't help. No I'm going to try boiling them next.

Got some distilled water, boiling them now.

[JTGS850GL]

Might want to look for a dental pick set like this one at Walmart:

https://www.walmart.com/ip/Dental-Pick-Set/39510686

Quite handy when working on carb orings too.

[ZombiePotatoSalad]

Might want to look for a dental pick set like this one at Walmart:

https://www.walmart.com/ip/Dental-Pick-Set/39510686

Quite handy when working on carb orings too.

That was my other option, I'm just worried that they are flimsier and could break.

[Gorminrider]

No harm in worrying a bit, before action, Zombie^^^that's a good caution. The needle tip itself is probably brass and itself being a point, though it is flattened and not super sharp, to push on it directly outward the "pusher" tip need suit the diameter of the hole closely and not be "sharp"
it'd be better if the tip of the pusher is squared off-so you are pushing a "rod" against the broken needle's tip.

Those cheapie probes are useful for lots of things but their toughness is questionable... I'd go for the wire brush bristle if it suits the hole closely...Grip them up close to the hole so it doesn't bend.

[JTGS850GL]

Based on this pic:
=

I'd say you've done a pretty good job at damaging the mixture screw jet tip. It may be buggered up enough that it will no longer pass through the opening backwards. I don't see any "tip" protruding down anymore. You may need to lightly sand the surface in order to remove the mushroom effect that's present. As others have stated, you need to extract the top by pushing directly on the center of the tip and not around it. Be cautious of using anything that will enlarge the opening as that will effect the tune.

[Gorminrider]

YIKES! ^^^ didn't see that!

[ZombiePotatoSalad]

The tip is no longer visible on one.
I think I pushed it down a bit, but it's still stuck.
The scratch marks were from the pick sliding as I pushed down on it. The pick also seems to have enlarged the hole a bit.

I think I'll take them to the local motorcycle repair shop tomorrow, see what they can do. I haven't been able to extract the tips myself, and I'm worried I'll screw it up more than I already have.

[JTGS850GL]

Good luck with the motorcycle repair shop. Most won't do the work and if they do will charge you a ton of $$$$.