1. In fact, one can tell if the spark plug needs to be replaced by removing it and checking it to see the color of the spark plug, the gap between the electrodes, the gap between the porcelain body and the metal. the hull is leaking, etc. If you notice that it is difficult to start the car when the car is cold, there is obvious frustration while driving, jitter at idle, or the engine's acceleration performance is decreasing, you should check the spark plugs on time. Because once the vehicle shows the above symptoms, it may be due to the aging of the spark plug.
2. Car maintenance is very difficult. When the car travels a certain number of kilometers, the spark plug will produce carbon deposits and the gap of the electrodes will increase the fuel consumption of the engine and. the spark plug gap will increase. The conference caused difficultiess startup. Therefore, regular inspection and maintenance of spark plugs can extend engine life.
3. Maintenance must be carried out:
1. The air filter should be cleaned regularly to prevent dust from entering the combustion with the mixture, which can prevent corrosion of the spark plug. .
2. You can also remove the spark plug yourself and clean dirt and carbon deposits from the ignition head. However, special attention should be paid to the fact that when disassembling the spark plug, be careful not to allow dust to enter the cylinder when the spark plug comes out. The surrounding area must be cleaned beforehand when removing the spark plug. If there is oil in the cylinder, the piston rings or other parts should be replaced in time to prevent carbon deposits on the spark plug.e cause a short circuit of the electrode.
3. In addition, fuel quality is also closely related to the life of the spark plug, so you should be careful when refueling, and you should not be greedy for cheap and add oil with quality problems, otherwise you will regret it.
How to detect a weak spark plug spark
High voltage fire is too weak during electric starting. Replace the igniter and magneto stator coil assembly in sequence and check if the magneto rotor. is demagnetized. Just adjust the spark plug gap a little smaller and you'll be done! If the motor is damaged and the speed is not sufficient, try changing it
1. Check the spark plug to see the spark from the plug. High voltage assembly: Run the engine to see if the high voltage line spark is normal <6-8CM>, such as Nonormally, then remove the spark plug. If there is a black oil stain on the center insulator or gap. This is wrong, this is normal <0.5-0.7 cm>. At this point you can perform a fire test on the spark plug. If the spark plug is adjusted to 1.5cm and the spark can still jump, this is normal, otherwise it needs to be replaced or cleaned. by an oil leak with the engine or the mixture is too rich. The blackening causes a short circuit between the center pole and the side poles, and the spark plug fires abnormally, causing the engine to fail to start or stall after one or two beeps. For example, sparks from high voltage lines usually make starting difficult, and higher speeds may allow starting. It may be possible to start by adjusting the spark plug gap a little. If it is small or missing, the problem is occurring in the ignition system. CDI devices... includingennent: the charging coil, trigger coil, ignition coil, igniter, high voltage box, extinguishing line grounding or line disconnection, etc.
I hope to adopt it
The spark from the spark plug is weak. You can use a circular gauge to measure the spark plug gap. If it is less than the minimum value, you can use it. can judge that the electrode gap is too small, causing an electric spark to appear. Low, the normal electrode gap of a general spark plug is about 0.6 to 0.8mm.
Method for detecting the spark of a weak spark plug:
1. The spark can be judged by the length of the maximum gap that the spark from the spark plug can jump over and its color. The method is to remove the spark plug from the cylinder head and then install the spark plugie removed on the high voltage wire cap, ground the spark plug housing against the cylinder head, turn on the power switch, start the engine and check if the spark plug makes any sparks. If the sparks are blue-white or purple-blue and make a popping sound when flashing, the sparks are strong.
2. When the spark is red and short or there is no spark during the bypass test, the ignition system should be checked further. You can also use an electrician's test pen to measure the output of the high voltage part of the ignition line in sections without removing the spark plug or disconnecting the ignition line to judge the spark strength. That is, while pressing the start lever, use a test pen to measure the ignition coil output terminal, high voltage line terminal and ignition head respectively.the spark plug input, as if measuring alternating current. The intensity of the spark can be judged from the brightness of the spark. the test pen. (Photo/Text/Photo: Tang Yanyan) @2019