Good plan. I have 2 generators, and usually give them the same routine sometime during the summer when I’m not prone to use them. Standard small engine stuff, check the oil, get it up to operating temps, put a small load on it, hit it with a touch of carb cleaner...
Same deal with my chain saws, whether I am using them or not.
I was asked what I wanted for Mother’s Day. I asked for a solar generator. Didn’t get one.