the stator ground is in the 5 wire harness (or is it 4 wire?) that goes from the front of the engine, right near the flywheel cover and battery, and into the electric box. it is the black wire. find where it connects in the box and verify that it is connected by putting your meter on the resisitance scale that says, in green, "200/****" (the one above "PNP") and putting one lead on one of the head bolts and the other on the stator ground in the box.