Carb problem but need wrenching expert

[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.

 

[Guest]

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.

 

[Mop Bucket]

Got the new carbs today, they look pretty good. Suprised to see a 27 year old virgin though, air screws still covered.

 

[Guest]

Got the new carbs today, they look pretty good. Suprised to see a 27 year old virgin though, air screws still covered.

Good luck with the new set...

I just cleaned/rebuilt the carbs from my "project" '82 650GL and they had never had the screw caps off either.

Take care when you drill a hole in those caps, they are only about .200" thick and it's easy to "accidently" drill the head of the screw underneath.

 

[raistian77]

Got the new carbs today, they look pretty good. Suprised to see a 27 year old virgin though, air screws still covered.

Good deal, sometimes you have to bite the bullet and call it a day.

 

[banditom]

worked for me

worked for me

Hi,

For what its worth now, I have a carb like that on a yammie, we were able to get the screw out by heating repeatedly, grinding a screw driver to the perfect size, using pb blaster repeatedly, ended up drilling it and easy outed it using heat on the carb tower. I havnt broken an ez out yet, dont know why though with you all having so much trouble. I did end up buying a can of freon with which to try to freeze the screw smaller along with the heat applied to the carb body, I didnt end up needing the freon though.