Similar to the tc100 hi/low ratio box, I "owned", stood on the then girlfriends parents farm for over 5 years non running and unloved.
Was given the bike so I stripped it replaced to holed piston, new gaskets, points and condensor, battery and tyres and made a cracking little bike.
Got it tested and taxed and used to use it when I was at the farm.
Went on a course for a couple of weeks and on returning her little tw@t of a younger brother had sold it and f@cked off on holiday with the money.
Never got the money but karma struck a month or two later when he got pissed , drove his car into a bridge, lost his licence and his insurance refused to pay out on his car