I have not. I will check that. I keep it in a plywood box with my snowblower, and it's only been outside and running maybe several hours in several years. Maybe 20-30 hours, but I believe that's high. But, I'll check it.
I'm sure that the choke is positioning fine (just replaced the carb and I remember checking that), but I'll verify that. Is that more critical with pull start than switch?
I'm a carpenter, not a mechanic, but I do limited work on my stuff with good success. That said, I have a Champion Model 71530 9000-watt genset. It's a dual-fuel unit that starts either with battery/switch or recoil/pull. We've had this genset for several years, and it's always started and run...