Xj650 fuel mixture screw help

I am currently ressurecting an ancient beast from the grave! An 81 xj650 that my grandfather left to my dad, then left to me. I have done a complete carb cleaning and have gotten this thing to start, idle, and run a few laps around the block. However, while trying to tune and sync the carbs, one of the fuel mixture screws was badly stripped. The caps were already gone from the holes and the settings were all 4+ turns out. I have been able to remove and clean 3 of the fuel mixture screws, but the last one is pretty much beyond hope. I am planning on carefully drilling it out but need help finding a replacement! Anyone know size and specs of replacement fuel mix screws for xj650? I have searched online for days and havent found anything specific to the xj650.

 

click on the xj4ever logo on top right of page , there's the online catalogue, its quite lengthy, but you could just pm user "chacal" he runs the spares
stu

 

Lol. There is another XJ owner that has a "family heirloom". I thought I was the only one....

 

Yes, Len can tell you exactly what size/pitch/thread/etc..... that you have or need. He also carries the replacement needles, as well as necessary tools for rethreading/retapping if necessary.

Dave F