With this 183cc cylinder, the team at Top Performances has succeeded in translating years of experience with Yamaha into a high quality 4-stroke cylinder kit for tuning suitable for 4-valve fuel injected engines.
This setup is based on high quality materials and the best possible performance. In addition to the piston and gaskets, this Top Performances cylinder kit also includes an ECU made specifically for the injection system of the scooter models.
Technical data: 183cc capacity 63mm bore 58.6mm stroke 11.5:1 compression ratio
This setup is based on high quality materials and the best possible performance. In addition to the piston and gaskets, this Top Performances cylinder kit also includes an ECU made specifically for the injection system of the scooter models.
