Howdy folks. Been awhile since I have been on this site. Just wanted to let everyone know that wiredgeorge Motorcycle Carburetors has developed a very fine method of repairing stripped thread in smoothbore jet blocks (Mikuni VM29). See our website
www.wgcarbs.com
for full details. We continue to add content to our help section, wg's Tech Stuff Index and our Vintage Bike Tech forum has dozens of service manuals available for download. God bless - wg