Hi Kenny
The carby on these is a knock off of a walbro (probably a wyj).
Zamas are easier as by and large they are inline with the body. For walbro, you need a walbro W tool, if you look it up they are under $10.
If you are doing only one, it is about 64 thou (0.064 inch) below the outer body of the carb (not the body immediately next to the lever, the height of the main body)