That’s an OFNA Force engine made in Taiwan. Force is still around, but finding parts for older engines is not likely very easy. They made a lot of engines over the years, so knowing exactly what engine you have will make it easier to find parts should you need them. In many cases, it’s not worth repairing if the engine needs more than just a bearing replacement. Usually auction engines will be worn out and in need of a new piston/liner set. Pinching the liner will buy you some time, but its not a long term “run like new” affair.