Mystery with a Gen-set

[Sailmonkey]

See post # 12

[Jolly Roger]

Hi everyone,
Well, I’m half way to solving the problem, and it’s nothing to do with the engine. After trying everything everyone suggested, but to no avail, and looking at the engine lumbering away, it suddenly struck me that it might somehow be under a heavy load, like trying to start a car in top gear. So I disconnected the multi-prong plug inside the control box and whizzo! the motor immediately started to run at full revs!
I telephoned the nearest Newage generator dealer who said the stator had probably burned out, causing a heavy load on the engine, preventing it from attaining full revs.
I still hope it might be a problem in the control box on top of the generator, which would save me having to lift the whole heavy genset to remove the back part. I will take the control box in and have it all tested.
But at least I found out the actual motor is okay.
If anyone has anything to add I would be pleased to hear it, otherwise thanks for all your input, I hope we all learned a little bit more.

[Opie91]

Do you have the manual? If so there should be a way to check the stator with an ohm meter.