I have a horizontal governor on a craftsman eager-1 6.0 hp engine and it either runs wide open or closed. How do I adjust it?

Hi,
Since you say it is an Eager 1, then I gather it is an older Tecumseh engine. A link to get the manual on the older L-head Tecumseh engines is:
http://www.smallenginesuppliers.com/html/engine-specs/tecumseh/Tecumseh_L-Head_Engines_Service_Information.pdf
It is a bit over 5 MB and requires Adobe Acrobat Reader.
Peace,
Clarke