Pulling apart my mower as I've figured out that the starter **** out on me.... But I'm stuck I can't get this metal plate or what not off.... Can anyone tell me how??? Pix attached
What generally works is to back off the nut flush with end of the threads.
Then a sharp rap with a hammer most often the flywheel will simply pop of the tapered shaft end.
Not to heavy a hammer and not all that hard a blow.
You want the nut flush so as not to damage the threads.
Good luck!
I replaced my Yardman starter last year without removing the flywheel. (19 hp Briggs) It took a lot of very short turns of the wrench on that back bolt, but it can be done. Good Luck.