现代摩托车发动机分为四冲程和两冲程两大类,其工作原理本刊已讲过,此处不再重复。由于发动机曲轴的旋转从进气管抽气,向排气管内排气,在进气管内形成一定的真空度。化油器通过控制真空度的分配,经过配剂元件的计量,浮子室内的燃油被抽入发动机的燃烧室内。摩托车发动机供油系统见图1。在实际使用过程中,摩托车行驶工况非常复杂:冷启动、怠速、加速、减速、下坡、上坡 Modern motorcycle engine is divided into four categories and two-stroke two-stroke, its working principle has been mentioned here, not repeated here. Due to the rotation of the engine crankshaft from the intake pipe exhaust, the exhaust pipe exhaust, the intake pipe to form a certain degree of vacuum. Carburetor by controlling the distribution of vacuum through the dosing element measurement, the fuel inside the float chamber is drawn into the combustion chamber of the engine. Motorcycle engine oil supply system shown in Figure 1. In actual use, motorcycle driving conditions are very complex: cold start, idle, acceleration, deceleration, downhill, uphill