有多年维修汽油机经验的老修理工向我们介绍,通过看火花塞瓷芯表面的颜色可以判断汽油机的故障,大体可分为:1、瓷芯表面呈白色汽油机工作正常。2、瓷芯表面呈微黄、微红或红褐色汽油机的工作也是正常的,火花塞瓷芯表面之所以呈微黄、微红或红褐色,是由于燃料,添加剂的不同而造成的。 Gasoline engine repair many years experience of the old mechanic introduced to us, by looking at the spark plug ceramic core surface color can determine the failure of gasoline engine can be broadly divided into: 1, the surface of the porcelain core white gasoline engine is working properly. 2, the core surface was yellowish, reddish or reddish brown gasoline engine work is normal, spark plug porcelain core surface was yellowish, reddish or reddish brown, due to the different fuels, additives caused.