Do you think I can maybe just put a patch on this?
Well, I supposed that the lesson for me here is to never inflate a 7-year-old tire to its rated-pressure.
The battery needed some coaxing to bring it back to life; dunno if it will make it to the end of the mowing season; this is the tractor's second battery; they only seem to last 3-years each. After sitting all winter, the engine started without too much persuasion.
I'd really like to put a mulch kit on the mower deck ... naaah ... maybe next year.