This is a 1990 model CV20-S in a Dixie Chopper with relatively low-hours.  I will actually get it here in a few days.
Model----CV20 S
Spec-----65541
Serial-----2724105917
Displ------624cc
Here is what I know about it.  It won't start.  There is more than two wires to the starter.  How do I hook up a fresh battery directly to the starter to determine if, in fact, the starter is bad?
For a couple months before the owner parked it, the motor was losing oil through one cylinder.  It would foul the plug pretty quickly.  I don't believe there is a positive pressure in the crankcase.  A local repair shop owner I met, told me that he would bet the house on it being a head-gasket with this Kohler.  I have spent a short time on the internet and have read many instances where the head gaskets are the culprit on this engine.  Is there a way to trouble-shoot this situation to narrow-down the possibilities before tearing the heads off?