What should I do if the spark plug on a 700W gasoline generator fails?

In addition to spark plugs, the highest failure rate is the combination coil that generates electricity in the high-voltage coil motor. Inspection Steps: 1. Remove the spark plug and cover it with a high voltage cap. Touch the spark plug to the metal shell of the engine and turn on the machine to check the performance of the spark plug. 2. Check the high temperature! Voltage coil and motor trigger coil. First use a multimeter to measure the impedance, and then measure the voltage of the high voltage coil on the machine. The output wire is red and black, and the trigger coil output wire is blue. and white. There is no multimeter that can detect the short circuit immediately. Normally there will be sparks caused by the short circuit! 3. Check the output voltage of the yellow and black igniter wires. You can also use the metinstantaneous short circuit mode. Normally there are sparks caused by a short circuit. Check the igniter, disconnect the black and white wires, and check the spark plug for spark. The black and white wires are the wires from the dead light switch to the power door lock. When the electric door lock leaks, the igniter does not come out. high tension. 4. The input wire of the high voltage box is the yellow and black wire. If there is voltage in the yellow and black wires, remove the high voltage cap and check for sparking in the high voltage wire. the normal distance between the high voltage wire and the motor shell is 0.5-0.2cm. Sparks appear when starting the machine.