A. This is an accessory suitable for Yamaha outboard engines, specifically an extended nozzle electric control valve and a reed valve. In terms of design, it is precisely adapted to Yamaha outboard engines, fully considering the coordinated operation with various systems of the outboard engine, and can provide strong support for the stable operation of the outboard engine. B. As an accessory of the motorcycle carburetor type, it can play an important role during the operation of the outboard engine. Whether in different operating states such as idling or acceleration, it helps the outboard engine achieve good performance. Although specific parameters such as fuel consumption per 100 kilometers, mounting hole size, idle speed, acceleration, and compatible engine models need further consultation, the adaptability and practicality of this accessory are its notable advantages. C. This accessory has a proper matching relationship and can match well with Yamaha outboard engines, meeting the usage requirements of the outboard engine. It provides a reliable accessory option for Yamaha outboard engine users, ensuring the normal operation and efficient performance of the outboard engine.