Posted by MarkB_MI on July 30, 2019 at 03:51:36 from (174.230.19.24):
In Reply to: Voltage too high posted by Tree-Farmer on July 29, 2019 at 21:14:29:
With the regulator disconnected, the stator output voltage will be dependent on engine speed. It's not possible for the voltage to be too high; that's what the regulator is for.
Something to check for is that the regulator case is grounded. A neighbor's ZTR quit charging, and after checking the stator voltage I told him to replace the regulator. That made no change to the battery voltage, so I checked the regulator output and discovered it wasn't grounded. He added a ground wire from one of the regulator ground screws to a good ground and it has worked fine for over a year. The shroud on that engine was plastic and didn't provide a ground. I have no idea how it was originally grounded as there was no sign of a ground lead anywhere.
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