Why does my Ryobi 2200 watt generator surge at low RPM's

no
ac units are 2000 watts minimum, washing machines are 1500 watts minimum, microwave is what is on the plate and start at 650 watts but most are 2000 watts
the 2400 is the peak out put for start up of fridge , washer etc and the running wattage will be 2000 watts or less ( duty cycle )
to run more than one of the nominated items at once you will be needing a 5500 to-6500 watts unit
they handle a start up surge of 6500 watts ( larger one) and will comfortably handle 5500 watts run full load
it works like this , the plate on the gen set is the surge short time load capacity of the genset and not the duty load which is 500 to 750 watts less than that plate wattage
for example your 2400 is is surge rated at 2400 watts but duty load is less than the 2000 watts
many people make the mistake of buying a gen set that looks big enough but do not calculate the maximum load capable on being put on the gen set
fully loaded uses more fuel /hr
wears out faster
has power surges as the extra load cuts in and the motor struggles to get back to required rpms for voltage and cycles
will not cover extras like lights ,
a much large gen set will take it all in it's stride , no power surges, better economy, less stress
talk with an electrician , do your maths on everything you wish to run and that which you forgot about then add 1000 watts to the duty cycle and that will be close to the gen set you require

The engine is not getting enough fuel. Try choking it some and see if this helps. If it does, then check the fuel filters. If you still have problems, then you will need to clean the carburetor or open the main jet if it is adjustable. Modern small engines are se to run as lean as possible to keep pollution down. This is much worse on small engines shipped to California. If the carburetor and filter are clean and you still have the problem, take the carburetor to lawn mower shop and see if they will replace the main jet with one a little larger.

Let me know if this gets you going. Robert

That sounds like dirty/clogged idle circuit passages in the carbureator. A little spary carb cleaner might work, but you might have to rebuild it.

YOU NEED TO AJUST THE FUEL MIX ON THE CARBURTOR

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i have the same problem with a new one ,take a peace of paper and cover the battery cover air inlet when it's running ,if your problem stops-it's the seal around the cover,a honda rep let the cat out of the bag,---jk

sounds like its breaking down, check your ignition system, test your leads, check your plugs, check your ignition coils etc etc etc.

Check your air filter to make sure it is clean, especially if the gen. has been run in dirty, dusty conditions. Make sure the gas tank vent is not clogged.

Also, pour some combustion cleaner into the carb. through the air intake to clean the carb. It sounds like it is starving for gas.

Hope this helps.
Rob

The carburetor is probably clogged up. Mix a bottle of carburetor cleaner with the gas to see if that would help. Also check/replace the fuel filter.