Don't trust any voltmeter on the genny itself btw - really they mostly just seem to be about as accurate as an "ON" light.Bu**er!
She starts and she runs. No load it runs pretty stable but plug a load in, in this case a hot air gun, and on the low setting I can just about get it to run and give 200V. On the high setting, 1.4kW, the voltage bounces around all over the place, up to 300V
Just discussing with the BiL and the thought is that that "block" in picture 3, is not just a capacitor but an AVR. I don't know where it is to even see about fixing it.
That's weird as I've used the gennie like this before with just a 16uF cap in. I've even tried another, the one I used originally that was in the radial arm saw.
Latest eta for power back on is 9pm tonight.
If the volts is low & the thing has been stood a long time - the voltage might well build back up with an increase in residual magnetism if you run a resistive load on it for a while (something you can't kill or aren't fussed about) it might well behave.
A cheapo heat gun (OK it has a motor as well as a resistive element) is probably about the right load size.... & have a multimeter connected so you can see what it's putting out.
Also those sets are frequency/speed dependent for voltage - so if the engine is running slow you'll get a low volts reading.
Offload you want to set it up to about 53Hz, then it'll droop a bit as you apply load (and it should operate in the right ballpark)