We are getting 155v on the 120 v receptacles

yellow 120 blue 240v. ip44 yellow/blue. 16 amp max 30amp is combining ie using other devices on 30 amp link cable.

Check and replace all the electrolytic capacitors, including the main filter. If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Check oil level, may have low oil sensor which will shut it down each time within seconds.
if oil is low add some see if that takes care of it,if not test the sensor

I have a EB-5000 model B 50 Honda generator the high idle works but can't get it to idle down, I change the switch because it was broke, I looked all springs are there, when I put my finger on the governor rod and pull it back idles down, any suggestions

Hello dear, would you consider buying a new generator? Generator Diesel Generator Cummins Generator Volvo Generator Perkins...
If you can start your generator normally, you can analyze the reasons through the following article:
Why Diesel Generator Fail to Start
Simple Ways to Deal with Diesel Generator Failure
Hope it works for you.

You CANNOT do this, USA 240V is derived from a poly phase scenario, IE 120V line to neautral and 240V line to line, UK 240V is derived from 1 line to neutral it will not work unless you power a transformer

What it sounds like to me is the ground wire somewhere in the generator is loose , and might be touching the 2nd 120 volt wire making 220.

If this is the model I am thinking of, there are 3 outlets. One 240V (L1, L2, Neutral and Earth ground. Some models use a 3 terminal receptacle that combines Neutral and earth.), one 120V receptacle (L1, Neut, earth) and another 120V receptacle (L2, Neut, earth).

If you verified fuse and circuit breakers are good, turn on the generator and verify you get 120V on each of the two outlets. Measuring between the narrow blades of the two 120V outlets should be 240V.
***Shut off the generator.
With a test light or ohmmeter, check continuity from the earth terminal of 120V outlets to 240V outlet. Likewise for neutral (wider blade on 120V outlet). Lastly, check continuity from Narrow blade of each outlet to the 240V outlet.

I suspect that you miswired neutral and earth. On a 4 wire PLUG, it is customary to connect earth and neutral.

Work safely so you can give feedback.

Voltage is adjusted by raising or lowering the engine speed (governor adjustment), however one must also pay attention to the rpm because your generator was designed to produce 120 volts at 60 cycles while turning 3600 rpm. Your electrician should have tested for htz while testing for voltage. I would recommend re-testing under load and adjust governor to turn 60 cycles to see resulting voltage.

first check stator for discoloring .