Carb problem but need wrenching expert

[Big T]

Gee, that's just a bad version of what Steve recommends for stripped screws

Before you start drilling things and making a mess, did you take Ed's advice and grind down a screwdriver to fit?

It will proabably screw right out and you can screw in a new one

[TheCafeKid]

Id agree it looks like someone attempted to cut a larger slot.. Do you have a dremmel tool? If so, and the previous suggestions dont help, use a cutting wheel to cut a deeper slot still. The more wall you can put on the slot, the more leverage you can put on the screw...it WILL come out. Of course you'll want to replace it, but finding one around here isnt tough.. I probably have a few, but I would need to see the tip of it to know which kind you need. If you're carefull, and make your cut as STRAIGHT as possible, the threads in the carb body will still work, and since there's an oring in the bore, the threads aren't important as a sealing device.

[Steve]

Gee, that's just a bad version of what Steve recommends for stripped screws.

Sure enough.

Here is what it is supposed to look like if you use a Dremel with a cut-off wheel:



I don't bother cutting the height of the "tower" down any, and the cut-off wheel cuts a very nice slot for the screwdriver.
There is also minimal damage to the threads. I have had no problem removing the screw or putting it back in.


.

[Nessism]

I have good news, bad news and noob news.

Good news is that right now I think the threads are ok. Most bolts or screws are stripped on my GS. The PO was all grip and rip. He needs an impact driver. My impact driver is my favorite tool now especially since I started working on the GS. I have loosened tones of screws I would have given up on without it.

Bad news is that I drilled a hole through the thingy in the picture, it is the mixture screw that has been butchered. Going to be tuff to get it out. I will try a left hand bit and screw extractor.

Noob news is that I didn't understand left handed drill at the time of the suggested and decided to drill anyways. On a good note, the bit jumped and is not centered in the screw. This helped me confirm it is the mixture screw and that the threads are probably good. I could see threads through the drill hole because of the large head and I drilled to the empty space after the head, if that makes sense.

So, if I can find my smaller screw extractor I will give that a try. If not... Shrug, drill a second or third hole, break the screw, or something. Other suggestions welcome.

Can't say we didn't try to warn you.

Your next warning is against using a screw extractor unless you are highly experienced with them. About 80% of the time they snap off in the hole and make drilling out the old screw next to impossible.

[tom203]

Can't say we didn't try to warn you.

Your next warning is against using a screw extractor unless you are highly experienced with them. About 80% of the time they snap off in the hole and make drilling out the old screw next to impossible.

Absolutely,yes! extractors this small have nasty habits. avoid at all costs.

[bwringer]

Can't say we didn't try to warn you.

Your next warning is against using a screw extractor unless you are highly experienced with them. About 80% of the time they snap off in the hole and make drilling out the old screw next to impossible.

Mmmm, you're a bit low. Extractors snap off more like 99.9% of the time.

Extractors completely fail to work pretty much 100% of the time.

[Mop Bucket]

Failure. I purchased the biggest screw driver I could find to try to get the screw out. After cutting it down to the right size and giving it a turn, there is no way it will catch. The cut is too rounded and too big. Any other suggestions?

[Graham]

Failure. I purchased the biggest screw driver I could find to try to get the screw out. After cutting it down to the right size and giving it a turn, there is no way it will catch. The cut is too rounded and too big. Any other suggestions?

New carb. Fixxed my mixture screw problem.

[tom203]

Failure. I purchased the biggest screw driver I could find to try to get the screw out. After cutting it down to the right size and giving it a turn, there is no way it will catch. The cut is too rounded and too big. Any other suggestions?

Have I told you how much I like left handed drill bits? Get one about 2/3 the size of the mixture screw. drill carefully at centerline- bit should grab and screw will back out. Yes, you will need a new screw.

[Mop Bucket]

Ok I gave up. I broke three drill bits, striped some extractor bits. Took my dremel to it. Tried my impact driver, soaked in carb cleaner. Triple no go

Anyone have a carb handy? I lost two ebay bids so far... oh well.

[tkent02]

I think I have a couple #4s.
PM me.

[Nessism]

Just for $hits and giggles... my suggestion is to take a propane torch, or use a hot air gun if you have a really hot one, and cook that screw tower with some PB Blaster in there. Do that a few cycles and then heat it up good and hot and take a punch and hammer, using the punch on the periphery of the screw, give it a few whacks to see if you can get it to spin. Nothing to loose. That slot in the screw should give you a good ledge to spin the screw with the punch.

[David.Seth]

I had a problem removing a worn out mixture screw just yesterday. Granted, I didn't have a carb/screw that was hacked up like yours. What I did was set the carb down so the screw was facing up. I put a tiny drop of krazy glue gel on a screw driver, and set it on the screw (I propped up the screw driver so it would stand straight up without me having to hold it). I waited about 10-15 minutes, took the screw driver, and very gently was able to turn the screw out. Not sure if that will work for you, but at this point, what do you have to lose? If it doesn't work (or makes things worse), you'll be right were you started and have to get a new carb anyway.

[Mop Bucket]

Bought a carb off of ebay. There were a couple available but I bought one that look good. Hopefully, between both carbs I can have a servicable carb. Thanks for the help and advice.

[chef1366]

If you didn't bugger the threads I'll take that carb body, get the idle screw out and sell it.
Heat, dremmel and a good screwdriver was your friend here.