Generator runs great but doesn't produce any power

You need to determine output frequency. Is your engine running at 3000 rpm (50 Hz)? At 50 Hz this generator only produces 700 VA (850 VA max).

I just look at my coffee pot here and it requires 1000 VA (watts) of power. If is more power requirement than this generator could produce even if it was operating in 120v mode at 60 hz.

Normally a generator RPM dictates the frequency. You will have to obtain a frequency meter. (Some multi-meters include a Hz selection). Adjust the RPM until your frequency meter shows 60HZ (in the US). If you do not read any frequency at any RPM, the unit needs troubleshooting in the voltage section.

You cannot adjust the voltage output. All generators are rated for 110-125 volt recepticals and usually have at least one 220-240 volt receptical for special appliances that require it such as water heaters, pumps, welders, air conditioners. When one of these higher draw appliances is connected and they begin to draw amperage, the gas engine will automatically increase rpm to produce enough amps. If your generator gauge is showing low voltage such as 60,80 or 90volts for example, then you have overloaded the generator and blown a capacitor, resistor or similar item.

http://cdn.powerequipment.honda.com/pe/pdf/manuals/31ZT7601.pdf

I would check spark arrester and clean it and the muffler first.lt could be the inverter unit. If you have a meter determine the output voltage, and freq. You would need a scope to look at waveform the repair should be lest to a repair center. suggest you call Honda for more guidance.
You could spend a lot of money on maybe parts./

Not sure what you mean "high voltage rpm power generator out", however many people have asked how to adjust the engine for proper voltage output. On generators with~out a voltage regulator, I adjust the engine RPM by using a digital voltage meter that has a Hz setting. Adjust the governor untill the meter displays 60 Hz. With the geneator producing 60 cycles, I know that the engine is turning 3600 rpm (the engine produces max hp when it is turning 3600 rpm). At this point, read the voltage output to verify that the range is between 115 ~ 120. On generators with a voltage regulator, verify/adjust that generator is producing 60 cycles then adjust voltage by turning screw at the regulator (some regulators are sealed with potting compound and can not be adjusted). If your power demands are not that great and you appliance can operate at 50 cycles, adjust governor as needed. Lowering to 50 cycles will also reduce output voltage. Good luck

Your generator produces proper voltage and 60 cycles at 3600 rpm. Use meter to adjust voltage/engine rpm. If after adjusting rpm setting and gen. does not have proper power, remove cover to generator and examine brushes and commutator rings for wear and voltage regulator/rectifier for burned components swolen or leaking capacitor and replace parts as necessary. Parts are available www.jackssmallengine.com Good luck

is the engine running at the correct speed
3000 rpm to produce 50hz
3600 rpm to produce 60hz

from not using the generator the plunger which activatesthe electrical contact is stuck. Race the engine by finding the throttle and after a few revs it will kick in

You did not mention how many amps your system is producing/drawing, however I don't think that you need to adjust the governor. Your engine can produce 18 hp at 3600 rpm. At 3600 rpm your generator is producing 60hz or cycles. As the load increases /decreases it has an effect on the governor thus the change in cycles. If the load increases past the capacity of the engine, the cycles will drop. To stabilize, reduce the load. 59hz is produced when the engine is turning about 3550 rpm. If you increase the speed of the engine to compensate cycles may increase past 60hz. 3650rpm will probably produce 61hz. Engine speed could be fluctuating due to other reasons (vacuum leak, dirty air filter, plug, etc ) if there is only a small load on the engine/generator. If you would still like to adjust the governor please email the load on the generator and I will help with instructions. Good Luck with your generator it is a very nice unit and built to last.

Honda generators are very reliable and are easy to adjust. The best way to check for proper output is to use a meter that can check cycles and voltage. Set meter to htz or freq and adjust the engine governor to 60 cycles. When the engine is turning 3600 rpm it is at max power and the generator may be producing ac voltage ranging from 115 to 125 at 60 cycles. When you draw power from the generator the engine governor will try to overcome the stress and maintain 3600 rpm. The engine must be well maintained to produce full power. Service oil, filter, plug and valve adjustment. Some engines have a spark arrester installed in the muffler that may become blocked with carbon. If engine is producing full power and voltage/amps is low then check brushes, capacitors, and/ or voltage regulator. Most problems occur when too much power is requested from rated generator. Example, trying to connect an 1800 watt air compressor to generator. The compressor may draw double the stated wattage upon starting and cycling. For longest generator life, It is best to use only 75% of rated output. On an 1800 watt generator use max wattage 1350. If you actually need to use 1800 watts then the best generator would be a 2500 watt. enjoy