Forum Discussion
Isaac-1
Dec 06, 2017Explorer
What model is your Onan 4000, some have a voltage regulator, and some the voltage output is proportionate to the engine speed. It just depends on if it is a 4.0 CCK, 4.0BH / BHE, 4.0KY, etc. even there it may depend on the exact revision on a few models.
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