Help with Predator 3500 invert/generator fouling spark plugs
This is my 6th brand new Harbor freight Generator in the last 6 weeks. I currently have 2 of them, one is broke down only spitting and sputtering with 0 load applied and now the other will not handle even a coffee pot without going into AC overload. I will be taking these back Monday and getting new ones AGAIN! THE LONGEST I HAVE HAD ONE RUN IS 130 HOURS BEFORE THIS PROBLEM. Everytime the spark plugs are charred black with carbon. I take them out, replace with a new one and runs good for 10 seconds and turns the new plug black from carbon. First couple times I thought it was a fluke but this many times with the same problem says otherwise. Harbor freight tell me I am the only person they know of that has this issue. I have followed their break in procedure, use seafoam in the gas, changed oil at 30 hours and still keep having these issues. Once the generators start this I have not been able to get any of them to recover..even after changing and cleaning the plugs numerous times. If I remove the air filter COMPLETELY, the generator will run but only without a load applied. If I put the filter back on, the vacuum sucks it right it and starts spitting and sputtering. I noticed on this last one that the air filter is soaked in gas and you can see it spitting gas out while running. Any help would be greatly appreciated as this is getting very old considering the closest store is an hour and a half from me.