Update on my GMS-76.
I drilled out the carb nipple, and the hole under the nipple.
It seems to perform better, does not die in WOT like before.
I still have fuel foaming in the tank due to vibration, due to running it near WOT most of the time. That's the only way it's going to get off the ground.
http://www.geocities.com/rssql/bucket1.jpg