I owned a riding mower once. Mice built nests in the engine, blocking enough of the air cooling to result in overheating and blowing the main seal. After fixing that twice I got in the habit of removing enough of the shroudy bits to expose and remove the nests. That took as long as actually mowing the lawn. After a season of that I gave the mower away and now we pay a neighbor to cut the grass. We did consider trying to mouseproof the shed or the mower itself, but we are either too busy or too lazy, depending on who you ask. My long term (probably fantasy) solution is a robotic mower - but we have not much budget for it, are chronically absentee and the property has a lot of odd strips of discontinuous turf.

EDIT: we did revert about 50% of the lawn to native wetland/prairie and we aim to raise that number over time.

Wrapping your wiring harness in capsaicin tape works pretty well. Unfortunately, this is a discovery I made after multiple annoying and expensive repairs.

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