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三、化油器的设计 原750系列摩托车汽油机配备两个节气阀式化油器,该化油器经历了数十年的使用实践,反映出以下问题: 1.因配备两个化油器,受工艺条件所限,化油器一致性较差,出厂时单只调试,装车时两个化油器并联工作,操纵联动机构运动零件较多,尺寸链较长,也难调整得准确一致。特别是两个化油器的操纵钢索如有一个断或卡,单缸工作更难于操作,致使摩托车不能正常行驶。所以使用双化油器时,混合气不易满足均质均量的要求,使用维修困难。 2.化油器怠速空气孔属直通外露型,虽有滤网防
Third, the carburetor design The original 750 series motorcycle gasoline engine is equipped with two throttle carburetor, the carburetor has experienced decades of practice, reflecting the following questions: 1. As equipped with two carburetor , Limited by the process conditions, carburetor consistency is poor, the factory commissioning only when loading two carburetors work in parallel, manipulate linkage agencies more moving parts, the size of the chain is longer, it is difficult to adjust accurately Consistent. In particular, if there is a broken or stuck control cable of two carburetors, the single-cylinder work is more difficult to operate, so that the motorcycle can not run normally. Therefore, the use of dual carburetor, the gas mixture is not easy to meet the requirements of homogeneous average, the use of maintenance difficulties. 2. Carburetor idle air hole is a direct exposure type, although the filter screen