In case anyone needs service manuals for their engines, here are some links to save you time looking on the net. There may be other sources as well that you guys might have.
Kawasaki Engines
http://www.mymowerparts.com/pdf/Kawasaki-Service-and-Repair-Manuals/
B&S Engines
http://www.diygokarts.com/vb/showthread.php?t=23401
Tecumseh Engines
http://www.barrettsmallengine.com/tecumseh/manuals.html
Kohler Engines...
Online Manuals
Kawasaki Engines
http://www.mymowerparts.com/pdf/Kawasaki-Service-and-Repair-Manuals/
B&S Engines
http://www.diygokarts.com/vb/showthread.php?t=23401
Tecumseh Engines
http://www.barrettsmallengine.com/tecumseh/manuals.html
Kohler Engines...
Online Manuals