Hello everybody, I bought a 1996 Coleman 424 stove last year and replaced the generator shortly after purchasing it. The stove worked perfectly for a few months, but then it suddenly started producing yellow flames and became much harder to get burning properly. I tried to fix the issue myself, but I'm not very technical and didn't have all the proper tools. While replacing the graphite packing, I may have damaged the generator cleaning needle and the fuel control knob assembly. See a video of my stove while burning: To rule that out, I ordered and installed a brand-new generator and valve assembly, but unfortunately the stove still burns strangely. The symptoms are: Yellow flames at certain fuel knob positions Black soot on pots and pans The flame sometimes increases in intensity by itself without me adjusting the control knob It is difficult to achieve a stable blue flame. I can usually get it burning correctly eventually, but only after building up a lot of pressure in the tank. The stove is much harder to get running smoothly compared to when I first bought it Things I have already tried: Using fresh Aspen 4 fuel Replacing the generator with a new one Replacing the valve assembly with a new one Cleaning the manifold (no spider webs or obstructions found) Cleaning the burners Does anyone have an idea what could be causing this? Could there be an issue with the fuel/air tube inside the tank, tank pressure, or something else that I'm overlooking? Any advice would be greatly appreciated.