Kohler CV-18 on G.D. Surfer. 12.8 volts across the battery. Center wire on regulator has 12.8 volts, while unplugged. Disconnected plug on regulator and checked A.C. voltage on stator leads with WOT. NO A.C. voltage is present. I checked resistance between the staor leads and it shows an OPEN (no continuity). I have swapped regulators with a known used one from the machine's previous engine, with no change in the results. I am open to all expert mechanical opinions. I think that we are going to end-up replacing the stator, but would like to hear everyone's opinion. Thank you, JIM.