Generator rus fine but does not produce power

If your generator engine is running but is producing no or low output, the circuit breaker is the first thing you should check. The breaker is a safety feature designed to automatically switch off if a surge of electricity or overload is detected. A surge can be caused by using a device that draws more power than the breaker is rated for, using multiple 'heavy load' devices at the same time, or if a short occurs within the circuit. Some breakers will have colored indicators to show if they have been tripped, but some will not give any indication at all. Cycle the breaker off and on and try the outlet again. If the outlet is still not working, confirm that the breaker is set to the on position and use a multi-meter to measure resistance on the lead wire connections on the inside of the electrical panel. If any resistance is read, than the breaker is good. If the meter reads 'OL' (overload) or Infinity, the breaker is bad and should be replaced.

If it has sat, it may have lost it's rotor residual magnetism.
Disconnect the rotor field wires at the AVR or on the exciter/brushes. Note they are polaroty sensitive. Connect a 12V battery to F+ and F- (note polarity) and momentarilly power from the battery for a few seconds. DO NOT forget to disconnect the rotor/exciter field wires first or the voltage regulator will be damaged.

If it hasn't sat check voltage regulator, rotor resistance, and stator resistance, and for shorts to ground.

If your voltmeter is registering the 240v prior putting in the twist-lock plug then your have a crossed wire plug or there is a problem with the load.

If not reading the correct voltage then you have problem with the generator's alternator. Example bad regulator or a shorted main winding.

May need to have the field flashed. There are numerous videos on youtube showing you how to do this.

Hi there...I have one and I work on them.where r u located?check stator and Rotor. What u can do is ohm it out...shut off gas...turn main 65 amp breaker to off. Take probe from meter and put on neutral post inside generator and place other probe on breaker....the side with wiring FROM generator....if it shows short....I suspect stator is shorted to ground

Check your circuit breakers to see if they are tripped or damaged. Then take a look in the end of alternator / generator at the field windings. Check for damage to the brushes, as well as the diode for continuity in 1 direction only. Look for damaged capacitor regulator. Replace as needed.

Wow, your meter showed that you had 120v to each of your outlets as it was running? And when you would plug in one of your appliances, they wouldn't work? Mmm, something's not right here...:). Not sure if this problem has been resolved yet (just looking at the date), but I would start from scratch again. Turn everything off (breakers, etc). Start the generator again. Then turn your breakers on ONE at a time. Use your meter to check out each receptacle. Do this on EACH one. If everything checks out okay, then turn on ONE plug at a time again, check with meter again, and then use a low amperage appliance to plug in - and see if it works. Yes, it sounds tedious - but we're doing the process of elimination to really rule a lot out. Unfortunately, coffee maker's (because of their heating element) draw a majority of the load, so having this on the same circuit with other component's can affect things also. If you've repaired this already, great! If you had a minute, I'd be interested in hearing what the problem was. And if you haven't fixed it yet, feel free to contact me again - and I'll help you through with this. Best of Luck to you! - Jim 

Make sure the breaker has not tripped. If the breaker has not tripped then it can be many things causing it not to produce power.

This sounds like a "flying open" in the rotor. Over time a small part of the wire that winds around the rotor has gotten cracked just enough to open up when it's warm and being pulled on by the force of the rotor spinning. To test this further, take the wires off the brushes and connect an ohm meter across them then run the generator, if you see the ohm meter indicate an open circuit you've found the problem. This can be repaired but it means removing the rotor and finding the weak spot in the winding. You could replace the rotor for a couple of hundred dollars or get a new generator.

Regards,
Carl