Mystery solved! The rocker arm tensioner nuts on the exhaust valve had backed off allowing the exhaust valve rocker arm to jump off of the push rod. Back in business! Thanks for the help!
This 2021 Kohler Ech440 with Efi was running fine for a year and just stopped. Now it cranks but just floods with gas. Has 90 lbs compression and good blue spark. I'm stumped! Advice is appreciated!