Usually you can turn on the ignition to let the fuel pump run for a while. Sounds like it had no fuel because of sitting for so long
Degelman build idiot proof machines, only to be faced with newer improved idiots….the struggle is real folks lol
My Dad taught me to return something in better shape than I got it, good luck with that one! Sad how equipment gets abused.
Get a demo Fendt 1167 MT Vario really would like to see how that beast pulls