Riding mower problem

Question

I bought a used riding mower a few weeks ago. I test drove it. It seemed to have a hard time cranking over but eventually did. Once I brought it home I started it once a day, for a few days until I could take it up north to my cottage. One day it would not start, I ordered a new starter, installed it and nothing. The mower won't even try to crank over. Any help

Thanks