JD 335 not starting

[Totembear]

Newbie here. I need some help. My JD 335 was running fine, went to back it in the garage and all of a sudden it quit. Turned the key once more and it started to fire up then died. Couldn't get it to start after that. These are the things I've checked/ installed. Replaced fuel filter, getting gas.
Checked fuel pump- its spitting out gas at the oulet.
Replaced fuel shutoff solenoid
Checked fuses, all good.
Cylinders have spark and compression at 140/130
Took out oil sensor and its spitting oil.
Seat switch is working because it turns over. Tried to turn over with the parking brake off, wouldn't turn over. So that working.
Could it be some kind of safety feature causing it not to start?
Maybe oil pressure switch is faulty?
I'm about out of options or ideas. Thanks. Great forum.

 

[Roadworthy]

Since the engine turns over I doubt it's a safety thing. Have you tried the air cleaner and verified a clear path from there to the intake? Also, follow instruction manual for bleeding air from fuel lines after filter change.