Honda EU6500is minor issue with eco

[Ozziedodge67]

Hey guys I have a 2015 honda eu6500is generator &I just used during hurricane Matthew I just did a full carb job cleaning about 1 month ago and have used since(just starting up to run)

We got hit with hurricane Matthew here in Florida pretty bad, lost power Friday @7am thru just now Saturday @ 10:30PM

I have both 20A plugs being used, running 2 refrigerators , 1 stand up deep freezer and also a complete entertainment system for the kids(Wi and tv) coffee pot.

Running- the the first 4 hours on eco throttle the was a little fluctuation on rpm of 2800 to 2600 rpm.... almost like a shudder.. the rest of the use it ran at about 3000 rpm smoother. I added seafoam, and never **** it down till just now

Is that normal on eco throttle since the fridges would essentially pull different amounts of power or????

Thanks ahead of time guys, just want to make sure my like new is doing the job correctly cause it seems to be just checking. Owners manual is very vague

Today a little trial

*****no load
Eco off 3300rpm
Eco on 24-2600rpm minor fluctuation

***hair dryer tuned on
Pulled 1600 watts

Eco off 3300rpm
Eco on 2500-2700 with minor surge

Read the owners manual 6x haha and all I could was eco mode with adjust rpm while watts being used