CV34 Pilot Screw Thread Chasing

The pilot screw on one of my CV34s is very hard to turn, to the point that the head of the brass pilot screw gets stripped while I am trying to make adjustments.

The pilot screw was new, so I believe it is probably the threads that need to be cleaned up. Does that sound correct?

If that does sound correct, should I be looking at using a bottoming, plug, or taper tap? This is my first experience at doing something like this so I am unsure if I am even using the correct terminology.

I can probably figure out the dimensions from an extra pilot screw I have, but does anyone know them offhand so I can compare to?

As I do more reading, it appears I definitely do not want to use a tap but a thread chaser so as to not cut up the original threads.

I might just look at making a thread chaser out of an appropriately sized bolt.

I wonder if it might be possible to make a thread chaser from an old air mix screw with a Dremel? I once made a thread chaser from a spark plug using a hacksaw blade.

I would first clean out the hole with a Q tip and some type of cleaner and whatever thread chaser you end up with I would coat it in grease and be very very carefull and go very slowly as I would think it would be very easy to totally bugger up a set of carbs

I think the existing air mix screw may be too soft to do the chasing, though that is a good idea I will look into.

I have an old set of the carbs that aren't in the greatest shape that I am going to experiment on first, I think.