"Scott..... Remove the spark p
"Scott..... Remove the spark plugs for safety, then disconnect the large main red electrical connector at the engine to eliminate any possible electrical harness etc problems that may exist from that plug forward. YOu can crank the engine by using a small jumper from the battery cable side of the starter colenoid to one of the smaller 3/8 hex nuts (wires) on the solenoid (not the ground nut/wire).
The two wires coming from the stator which are "Brown" and the other "Brown/Orange" are the wires that supply voltage to the powerpack. The stator actually emits 300 volts AC to the pack so you would need the volt meter set to AC. The actual output read by the meter must not drop below a certain point but I'm not sure of what it is.... 230ac volts as you quote may be right.
However, you can check the stator with a ohm meter also. On "Hi Ohms" the meter hooked up between those two wires should read 630 ohms, plus or minus 75 ohms. There should be no reading between either wire and ground. Any deviation from those readings would indicate a faulty stator.
Regardless of the readings, I suggest that you remove the flywheel and visually inspect the stator for cracks, leaks,oozing of a sticky like substance... things of that nature which would indicate that it is failing, has failed, or is intermitent. Hope this helps you somewhat.
Our questions require answers. If you refuse to answer our questions, how can we answer yours?