RE: OS FS-70 Ultimate 4Stroke??????
OS 70 4 strokes are very reliable and dependable. If you are going to buy it, I would spend a few extra dollars and get a Saito. My Saito 80 GK, 72 and 82 are extremely reliable and dependable. Once broken in, they rarely require more than 1 or 2 clicks on the high speed needle to compensate for weather changes.