sgtjoe Report post Posted February 14, 2020 I checked the output of my generator and it is 140v, is this too much? Share this post Link to post Share on other sites
wolfe10 Report post Posted February 14, 2020 YES, too high! 120 plus/minus 10% Assume you are checking with at least some load on it. Share this post Link to post Share on other sites
dickandlois Report post Posted February 14, 2020 Joe, Attached is A link to the parts list for your Generator. and a PDF file copy of the owners manual. https://gensetservices.com/wp-content/themes/gensetservices/PartsPDFs/0C4547.pdf And a copy of the owners manual, that should help you set the voltage and the frequency - should read around 120 volts at 60 cycles. Rich. Generac_Genny_75D_model_04270-00D7427_manual.pdf Generac 75 D voltage Regulator info 2.pdf Share this post Link to post Share on other sites