http://www.tocmp.com/manuals/Carbs/F...bl_ModelF1.jpg
#47 is the item I'm talking about...
http://www.tocmp.com/manuals/Carbs/F...1_Picture7.jpg
Step 27 Attach linkage I1 (Fig. 6) to lever I2 with clip I.
Step 28 Place new gasket on power valve (H) (Fig. 6) and thread in new power valve. Use 1" wrench or crescent wrench, being careful to not round faces.
and here is the replacement carb... you can see that the threaded hole is visibly open...
http://www.partsamerica.com/product_.../CHR/6-713.jpg