If you have spark, shoot about a teaspoonful of fuel (premix if you have it but pure gas is OK since it doesn't hit the bearings this way) into the sparkplug hole, screw the plug in and give it a pull. If it runs a few seconds... the engine and ignition are basically OK - look for fuel or carb problems. These things have very simple carbs that are not easily comparable to bike carbs, no idea what yours has but most have a "jet" in the bowl attachment bolt that gets blocked with goo if left sitting with fuel in. The floats and float valves are also weak. Many have a diaphragm "fuel pump" on the side of the carb that works from the intake vacuum: the diaphragm gets stiff or cracks and you get no fuel, or the tiny check valves stick. Older ones DO NOT like ethanol "enhanced" fuel, the diaphragm degrades quickly.
Chinese generators seem to all come from the same factory, same basic model with maybe different covers and painted/labelled for many different brands. Because of that parts are often easy to get on ebay, I bought a complete new carb for $10.00 - just found one that looked the same in the listing pics. It worked fine.
