Chris, you can't hone to +20 it has to be bored. AVB we still have a few machine shops that do this sort of work but they are booked ahead for months, these places do jet skis and outboard motors and that being the leisure industry people expect to pay big money for any work done on these machines. These places can't be bothered with a one off mower rebore. As for car engines, cheaper to just grab one from a wrecker, or just buy another car
