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1980 CX500C
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hi all - I am cleaning my carbs and replacing very old, crusty parts. The screw right above the jet needle is totally stripped and I'm having a hard time getting it out. Any suggestions? This image is the screw I am talking about

Drinkware Cup Coffee cup Drink Wood
 

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do you have a drill press ? If so , set the carb body in the vice - pre-soak the brass screw with penetrant of your choice , fit a suitable sized blade screw driver into the chuck on your drill , lower the quill until you have firm contact in the brass slot , then turn the chuck by hand , in the appropriate direction whilst holding firm pressure down on the screw driver. Wiggle the drill chuck back and forth to get some movement going and help the penetrant soak in .
Works for me "most times"
 
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The screw right above the jet needle is totally stripped and I'm having a hard time getting it out.
The slot in that screw looks servicable. When you say stripped do you mean that the screw turns easily without coming out?
 

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1978 CX500 "The Grub", 1983 GL650I "Nimbus"
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do you have a drill press ? If so , set the carb body in the vice - pre-soak the brass screw with penetrant of your choice , fit a suitable sized blade screw driver into the chuck on your drill , lower the quill until you have firm contact in the brass slot , then turn the chuck by hand , in the appropriate direction whilst holding firm pressure down on the screw driver. Wiggle the drill chuck back and forth to get some movement going and help the penetrant soak in .
Works for me "most times"
I'd be careful with that. All the twisting force will be in shear on the small tab of the plastic "black banana."
 

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While most “tips and tricks” require some caution and common sense, I must say I hadn’t thought of using my drill press to apply extra force, which can be a game changer. Now all I need is a low/variable speed impact drill press. 😆
 

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Put the chuck key in the chuck and rotate chuck with the key.

Or use a sprag spanner {C spanner} in one of the chuck holes.

I don't generally remove them.

There's nothing in there that the ultrasonic cannot clean as an assembly.
 

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The first sign of a stuck screw I go for heat. For small stuff I use one of those little butane torches. Try again. If a no go more heat and then some BP blaster. As the part cools some blaster will get drawn into the parts. let it sit and retry. I also drill and use ez-outs. They usually do not work, but worth a try.
Good luck
 

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if you must drill and eazi-out - I would suggest you use a Torx driver bit rather than an eazi-out. Drill a suitable sized hole , tap the Torx bit into the brass then wriggle it back and forth. The torx-bit has a bigger bearing surface and doesnt tent to chew a manky bigger hole in what you are trying to extract
 
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