That is awesome Gary!! A bit o JB on there and like nothin ever happened 
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BS34 idle mix screw issue, ideas wanted
- Thread starter gggGary
- Start date
Congratulations on an amazing result. Glad you went with the horizontal Dremel cut-off wheel slot method -- as soon a you proposed it I thought it was a lot better than my idea.
I am not surprised that it unscrewed easily. Almost every time that I cut a slot into a buggered bolt or screw head, the heat and vibration created makes the fastener come right out.
I am not surprised that it unscrewed easily. Almost every time that I cut a slot into a buggered bolt or screw head, the heat and vibration created makes the fastener come right out.
Full credit here; Peanut came up with the vertical slot, I was going to horizontally whack off the tower, THEN cut a slot in the easy-out but the vertical cut did both at once.
Thanks to ALL that replied and contributed, The BORG knows!
Take a bow Peanut....
B_Crabaugh
XS650 Addict
You guys are more ingenious than I! Nice work.
Plain takes a steady hand 
..... thin is what I mostly need, so what I buy.
PS a small thin rubber washer top and bottom of the disk really reduces breakage. Don't put the dremel back on the shelf with a cut off wheel in the chuck, they are always broken "next time".
..... thin is what I mostly need, so what I buy.PS a small thin rubber washer top and bottom of the disk really reduces breakage. Don't put the dremel back on the shelf with a cut off wheel in the chuck, they are always broken "next time".
One thought I would have is to try to find an oring to cut a piece out of that fits in the hole snug then use a tooth pick to poke the JB Weld in to the slots to fill them. After it sets should be able to just pop the oring plugs out and your good to go.
I'd use plain on something tiny where it couldn't bind. Steady enough hand, but the concentration hurts my head... Good work -- don't know if I'd have thought of this.Plain takes a steady hand
Maybe just a sliver of masking tape on the inside and up over the top to make a little mold for the jb
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You think I'm going to look that gift horse in the mouth????
I agree with what dogbunny sez.
Maybe the shock when the easy-out broke loosened it? We've all snapped the head off trying to remove a bolt and then the remains just freely turned out of the hole. 
I agree with what dogbunny sez.
Maybe the shock when the easy-out broke loosened it? We've all snapped the head off trying to remove a bolt and then the remains just freely turned out of the hole.
That and just maybe the cuttin' created just enough heat in the right places.You think I'm going to look that gift horse in the mouth????
I agree with what dogbunny sez.
PS this carb body got sent to a member and is back on duty making an XS650 go vroom vroom!
Good bud and fellow XSer Bill was doing a set of BS 34's, every screw and piece of brass was stuck like it was super glued, he got em all apart 'cept the idle mix screws, after way more effort than he should'a spent, the head slots were fubar. and they hadn't budged. They weren't bottomed, the needle tips were not visible in the bores.
Bill's no newby, he's rebuilt 100's of carbs to a very high standard
Ooh, a CHALLENGE!
So clamped a body in the vice on the mill, center drill in the chuck cuz I didn't have collet to fit this little center drill ( I need to get some more center drills, specially in the smaller sizes). Got a hole eyeball centered and started in the idle mix screw, then drilled with a 43 # drill bit, selected so a T10 star bit would be just enough bigger to bite into the hole walls. Drilled down mebby 5/16" then tap, tap, tapped the bit in till it was solidly locked into the hole walls.
Lubed with rust buster and started working back and forth with a ratchet, ever so carefully got the screw to break loose, and after mebby 20 back and forths I had it moving 3/8 of a turn in the body threads, not long after I was able to bring the screw out. Repeat for the second body and done. Saved the bodies, dipped out the washers and o-rings, threads are good.
Whew.
Bill will have these carbs ready to run in a day or two.
Bill's no newby, he's rebuilt 100's of carbs to a very high standard
Ooh, a CHALLENGE!
So clamped a body in the vice on the mill, center drill in the chuck cuz I didn't have collet to fit this little center drill ( I need to get some more center drills, specially in the smaller sizes). Got a hole eyeball centered and started in the idle mix screw, then drilled with a 43 # drill bit, selected so a T10 star bit would be just enough bigger to bite into the hole walls. Drilled down mebby 5/16" then tap, tap, tapped the bit in till it was solidly locked into the hole walls.
Lubed with rust buster and started working back and forth with a ratchet, ever so carefully got the screw to break loose, and after mebby 20 back and forths I had it moving 3/8 of a turn in the body threads, not long after I was able to bring the screw out. Repeat for the second body and done. Saved the bodies, dipped out the washers and o-rings, threads are good.
Whew.
Bill will have these carbs ready to run in a day or two.
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