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CY80摩托车采用的是单腔平吸式化油器。它采用的是改变主喷孔通过断面的补偿方法,也是目前摩托车化油器广泛采用的补偿方法。 其特点是在主喷孔中放一根可随节气门联动的量孔针阀,针阀的形状是根据混合气补偿的要求和它的运动规律确定,但包含在主喷孔中的一段针阀形状是圆锥形的。针阀较粗的部位在主喷孔中时,起节制燃油喷出量的作用,发动机进气量增大,针阀将向上升起,主喷孔有效面积加大,能保征燃油喷出量的要求,使混合气不因空气量增加而变稀。 当摩托车在中高速行驶中混合气过浓或过稀时,
CY80 motorcycle is a single-chamber flat suction carburetor. It is used to change the main jet through the cross section of the compensation method, but also widely used motorcycle carburetor compensation method. The utility model is characterized in that the main orifice is provided with a quantity hole needle valve which can be linked with the throttle valve. The shape of the needle valve is determined according to the requirements of the gas mixture compensation and its movement, but the length of the needle The valve shape is conical. When the coarse part of the needle valve is in the main spray hole, it will play a role of controlling the amount of fuel sprayed out. When the air intake of the engine increases, the needle valve will rise upward and the effective area of the main spray hole will increase, thus ensuring fuel injection Volume requirements, so that the mixture does not increase due to air volume and thinning. When the motorcycle in the mixed medium or high speed driving too thick or too thin,