１．拖拉机日常保养时应清除磁电机上及高压导线和火花塞外部的油污、尘垢。积在火花塞绝缘体表面的污垢，有类似旁路电阻的作用，易使高压泄漏，影响火花塞的正常工作，因此应注意保持其表面的清洁。 ２．要常注意检查高压导线的连按情况。高压导线通往火花塞的一端应焊有接线 1. Tractor routine maintenance should be cleared on the magneto and high voltage wires and spark plugs outside the oil, dirt. The dirt that accumulates on the surface of the spark plug insulator has the effect of similar shunt resistance. It is easy to make the high voltage leak and affect the normal operation of the spark plug. Therefore, care should be taken to keep the surface clean. 2. Always pay attention to check the high voltage wire even situation. One end of the high-voltage conductor leading to the spark plug should be welded with wiring