enblethen wrote:
If it has compression release like on Briggs, you have to turn back the crank a little to get valves to close. When engine RPM is high enough the compression release disengages.
Not sure if Kohler has a compression release.
Found a parts diagram for a Magnum M20
HEREDon't see any thing in the valve train that looks like any form of compression release which I would not be too shocked about. Kohler often didn't use compression release at least with the 1960s cast iron engines I have played with.
Sadly, I suspect OP may need open up and dissect the engine, kind of doubt this is going to be fixable via external means.
