Hello all, I hope everyone is well. I am stumped about my 5500 Watt generator with a 10HP Briggs & Stratton engine. It is Model 19E412 Type 0132-01. It became hard to start unless starting fluid was used. I cleaned the carb-No change. So, I searched online and found a replacement carburetor that was supposedly for my model engine. It looked very similar and had the proper linkages. I installed it and also replaced the fuel pump and fuel filter. I was disappointed that it would not start unless I used starting fluid. It also surges from time to time after I get it running. I also have to keep the choke on about 60% or it will start to die. I have adjusted on what I assume to be the air/fuel mix screw. It never seems to make a difference. Anyone have any thoughts? Did I get a bad cheap chinese made carburetor? Could it be another issue? I was so hoping a simple carb change would do the trick. Thanks in advance.