Solve the problem and sell the junk Deere
Found the fix to my John Deere not starting problem. The fix was to install a fuel shutoff valve and run the engine until it used up all of the gas in the carburetor. After doing that, I can go any length of time between mowing and the engine starts up on the first pull. I'm using ethanol gas with Stabil in it but I don't think the Stabil is the key so I'm going to try without the Stabil after I use up what's left in my 5 gallon gas can.
For lurkers who might want to try a fuel shutoff valve in their non starting mower, the valve I used is the Briggs & Stratton 698183 valve-fuel shut off. Purchased it from amazon.
Yardguy