My cousin now works on an oil rig, but back in the 1980's, he owned the local Suzuki dealership, just a small shop in the country that repaired anything from bikes to chainsaws, mowers, pumps etc.
An old farmer came in with a saw bench that was powered by a 1915 Indian Power Plus 1000cc engine, covered in 60+ years of oil and dirt, that had finally given up the ghost. He asked my cuz how much for a new engine? My cuz said he'd replace it with a new Briggs and Stratton engine for around 300 bucks, but the old farmer was horrified!
My cuz asked him where the engine came from, and he said that back in the 1920's someone had left the motorcycle at his farm and had never collected it, so eventually (probably the next day) he pulled the engine out and put it in his sawbench, that had previously been driven by a big stationery engine.
He said he still had the remains of the bike in his shed, so my cuz offered to install a new Briggs engine for free in exchange for the Indian and of course the farmer was very happy to get a free engine for that old junk motorcycle........