长安微型汽车采用“铃木”462Q发动机,安装“SOLEX”平吸式单腔化油器。这种发动机在使用中若出现排气冒黑烟时,按常规一般可清洗化油器,清除化油器混合室及怠速空气道中的积炭,调好油面及怠速,即可将冒黑烟的故障排除。不过也有例外的时候。笔者就曾遇有此冒黑烟的故障,按上述方法清洗化油器后,装机调试,排气仍冒黑烟,而且当切断怠速截止电磁阀(良好的)电源后,不但怠速仍在运转,而且转速还有所上升,此时排气冒的黑烟却有所 Changan micro-car using “Suzuki ” 462Q engine, installation “SOLEX ” flat suction single-chamber carburetor. This engine in use if the exhaust black smoke, according to conventional general cleaning carburetor, remove the carburetor mixing chamber and idle air Road coke, adjust the oil level and idle speed, you can black Smoke troubleshooting. But there are exceptions. I had encountered this black smoke failure, according to the above method of cleaning the carburetor, the installation debugging, the exhaust is still black smoke, and when cut off the idle cut-off solenoid valve (good) power, not only idling is still running , But also increased the speed, exhaust smoke at this time there are