gracieI had a flashback last night... I've had a champion 2000W generator for 10 or so years. It was ALWAYS very hard to start. I checked with the small engine shop in the area and they agreed and said they could clean things up and MAYBE make it a little better, but it was NEVER going to be quick and easy - and it FILLS the carb when you open the valve.
BUT, (that's not the flashback), I remembered last night that a couple years ago, when it got impossible, I went through the thing and pulled it apart. When I got the carb off, the bowl was full of strange, rusty-looking, deposits and corrosion. It actually looked like a boat with barnacles on the hull. Both jets were completely blocked with something that had hardened and didn't want to come out. So, I found a replacement carb on line and put it on. That got it working, and it worked for my next trip. then it sat. And 3 - 4 months later, no start. I could spray it with ether and it would pop and run for a second but not normal...
It's been sitting since.
I'd forgotten what the inside of that bowl looked like 'til I recalled it last night... I just never associated it with oxy gas.
on the champion;
remove the fuel tank, clean real good inside!! replace the hoses. as well as any fuel valves and fuel filters to the carb.
reclean the carb or replace it again.
you should be set
yea just cleaning the carb does not cover the trash in the fuel tank or hoses etc.