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汽油机的常见故障有不能起动,转速忽高忽低,达不到额定转速,运转中冒烟,运转中有异声等。故障的检查顺序应从简到繁,由表及里逐步深入地进行。除凭经验判断外,如有火花塞、磁电机、汽化器等备件时,还可以采取用完好部件代替某个被怀疑为存在问题的部件工作,将一个零部件相对地孤立起来进行检查诊断。汽油机的常见故障可从三大方面进行检查:即点火系统,供洫系统以及气缸、曲轴箱部分的密封性等。一般拉绳3～5次不能起动,就要检查原因,以免气缸内积油,更不易起动。
Gasoline engine failure can not start a common, high and low speed, up to rated speed, smoke during operation, running in different sound and so on. The inspection order of faults should be from simple to complex, and be gradually and deeply carried out by the table. Except for the judgments of experience, in the case of spare parts such as spark plugs, magneto-motors, carburetors and the like, it is also possible to take good parts instead of some parts suspected of being problematic and to isolate or isolate a spare part for inspection. Gasoline engine common faults can be checked from three aspects: the ignition system, for 洫 system and cylinder, crankcase part of the sealing and so on. General pull rope 3 to 5 times can not start, we must check the reasons, so as to avoid the cylinder oil, more difficult to start.