Yamaha - Gear, ring - YF1-52626-38-20Yamaha Ring Gear Engine Timing Component YF1 52626 38 20 Overview When youre inside the geartrain on a Yamaha, everything has to mesh perfectly or youll feel it right away. Ive seen engines develop noise or timing issues just from worn gear teeth that dont look that bad at first glance. The Yamaha Ring Gear YF1 52626 38 20 is built to keep that rotation smooth and consistent where it matters most. Its one of those parts you dont want to cut corners on