After soaking with oil a couple of day I rotated fly wheel and added Chemtool with the oil thinning the viscosity some. After several days of soaking, last night I was able to see the valves moving up and down opening about 1/4 in and closing completely. I was able to look down the sparkplug hole and see the valves moving with a small light and mirror. As a side note I did not see any carbon buildup on the valves or piston. Kohler manual recommends removing head and scraping off carbon buildup at 500 hrs. Hope to get it back together soon to see if compression has returned.
