I learned to repair a carburator for a vintage motorcycle with my dad. I bought the bike with the carburator in a box for $300. I probably put around $500 more into it of which new tires cost around $200.
That was more than 3 years ago and still ride it today. I've done done some maintenance work myself, like changing the oil, brake pads and fluid, and other minor things.
He's wearing a wire!