Motor YS 91SR-3DS

    NEW Larger cylinder head for better cooling and performance
    NEW Steel lined backplate to minimize drag resulting in better performance and increased horsepower
    NEW Piston & Sleeve design increasing both performance and efficiency
    Proven Regulated fuel system for positive fuel flow during all types of flight conditions

        DISPLACEMENT: 14.89cc
        BORE：27mm
        STROKE：26mm
        WEIGHT: 553g
        PRACTICAL RPM: 2000~17,000