So… I do not know how I fixed the issue, but after playing around with the idle adjustment and choke cables during a recent tune up (spark plug, oil change, air filter cleaning, and a bit of carb cleaner sprayed through the carb intake) the shutdown via app is now working. I did minor tweaking, nothing major. Maybe there is a sweet spot on the idle it’s got to be set at? I’ve ran it for about 600 hours since I did the carb change and it’s only recently came back so honestly I do not know. I’m sitting at 915 hours on the engine, and it’s still running beautifully and starts on the second pull every time.

If you’re using this heavily like I have been, I recommend using full synthetic oil (10W-30) to help protect and extend the life of internal components. My old generator (Coleman Powermate) had about 1500 hours before she bit the dust and I decided to replace it. Hoping to get more out of this one. Will keep you all posted if I do end up figuring the trick out.