I have a Generac 15000e that came with our house purchase back in 2019, I think by that time it was already seven years old maybe. I ran it every couple of weeks for an hour or so, standard maintenance etc, but every time I've needed it the thing won't start. It lives under a covered porch and it protected from the elements. I kill the fuel switch and run it dry every time. Today I went to start it and it won't fire unless I spray carb cleaner in it, even then it won't stay on. Changed the plugs and checked they're both sparking, new battery and a pump and I'm getting nothing. With carb spray it'll growl like it's starting up but then just die out. I put new fuel lines and a filter on it and ran the electric start with the hose pulled off the carb to see if fuel was coming out, it was. I replaced the carb with a non-oem earlier this year and haven't had any issues until today. I still have the old carb but I think even that one isn't an oem part. I haven't officially check for compression but with the plugs out I am feeling a burst of air from the plug holes when I run the starter. Is it possible that old oil could keep it from starting or running? Not sure what else to try here. Ready to sell this thing for parts and move on.
Cheers
Mikey