12V190型燃气发动机采用火花塞点火,其点火提前角是否准确直接影响发动机的动力性和燃油经济性。1.传统检测方法传统的12V190型燃气发动机点火提前角检测方法比较复杂,其检测步骤如下:(1)粘贴示波器纸将发动机停机,根据点火提前角的估算范同,在发动机飞轮上贴上示波器纸。示波器纸具有较好的感光性,当有感应电压在纸上放电时,电感火花可在纸上 12V190-type gas engine ignition spark plug ignition accuracy is directly related to the engine power and fuel economy. 1. The traditional detection method The traditional 12V190 gas ignition timing detection method is more complicated, the testing steps are as follows: (1) Paste the oscilloscope paper to stop the engine, according to the estimation of ignition timing Fan Tong, affixed to the engine flywheel oscilloscope paper. Oscilloscope paper has good sensitivity, when the induced voltage discharge on paper, the inductor spark can be on paper