Pilot air screw

[Tx98Formula]

I've got a bit of a problem. When i first picked up my 82 GS850GL the previous owner told me one of the carbs was leaking. Well after pulling the #4 carb apart i found that one of the towers that holds the float was broken. I decided to pull the other carbs apart and found that the #1 carb had the same exact issue. At this point I decided to completely take the carbs apart. When I went to remove the #1 & 4 pilot air screws I found they were both completely striped out. My question is, how the hell can I get these screws out of there? Of course they are recessed so vise grips will do no good, my easy out drill bit is way to short. Any ideas????

[Guest]

#1 and #4 are now scrap, imo.

[Guest]

Junk the carbs and get a couple of different ones or a whole completely different rack and start over. IMO.

[Tx98Formula]

That's what i figured but thought I'd ask just in case if anyone had any ideas

[bomber737]

Since the carbs are scrap anyway you can try a left handed drill bit. Works reasonably well if you can keep the bit straight. I use a local machine shop to do a few of mine and it spun them right out. You can get the correct bottoming tap from McMaster. I am not sure what the exact size is but that same shop had the correct one and cleaned up the threads for me and now the carbs are working great. I think it might be a M5x.5 tap but if you are interested I can ask the shop for you if you would like. Another solution to the broken float towers is if you know a good welder they can be re-welded

[Tx98Formula]

Since the carbs are scrap anyway you can try a left handed drill bit. Works reasonably well if you can keep the bit straight. I use a local machine shop to do a few of mine and it spun them right out. You can get the correct bottoming tap from McMaster. I am not sure what the exact size is but that same shop had the correct one and cleaned up the threads for me and now the carbs are working great. I think it might be a M5x.5 tap but if you are interested I can ask the shop for you if you would like. Another solution to the broken float towers is if you know a good welder they can be re-welded

I went up to harbor frieght yesterday and picked up a different easy out kit that had longer more narrow left handed bits. Once i had that the pilot jets came out no problem. I'm trying to find someone to fix the towers for me now, if all else fails i work fuel cell on the B-1 and we have some pretty good solid putty for fuel tanks that i could use to hold them in place.

[Nessism]

Tons of threads on this subject in the archives. This is but one...http://www.thegsresources.com/_forum...d.php?t=128923

Key is to avoid stripping the screw by using a properly fitting screwdriver, and heat the carb body as necessary. Also use PB Blaster or similar.

[Tx98Formula]

Tons of threads on this subject in the archives. This is but one...http://www.thegsresources.com/_forum...d.php?t=128923

Key is to avoid stripping the screw by using a properly fitting screwdriver, and heat the carb body as necessary. Also use PB Blaster or similar.

I personally didn't strip the screw head. When i stuck the screw driver in there the head was already completely rounded and actually busted up pretty bad. There was no saving it no matter what size screw driver I had. Trust me i learned a long time ago about having the right size screw driver for jets when i used to race 4 wheelers