Thanks for the feedback Hybridhunter.
What kind of mat were you using? (rubber, natural fiber?)
Today was my monthly running of my Yamaha EF2000is. It's not as quiet as I would like but then again this is on concrete, next to the garage, cars, etc. Lots of surfaces to reflect noise. Certainly wouldn't want to run it 24/7 in a residential tract when SHTF. Might try a tarp on it.
Question on the voltage dropping - would it stay down even when the RPM's caught back up? If so you might be shortening the life of the windings as you're overloading the generator portion.
Good review.
