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13

2018

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03

How to choose spark plugs for off-road motorcycles, do you know these?

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北海运动

The spark plug is a "lighter" that ignites the mixture. Its working conditions are very bad, and it needs to withstand the high voltage of 20,000 to 30,000 volts, the repeated impact of the high-pressure gas of 50Kg/cm2, the change of the temperature difference between room temperature and 2500 ℃, and the change of the combustion products. corrosion. Spark plugs are consumable parts of motorcycles and need to be inspected and replaced regularly. Under normal circumstances, they need to be inspected every 1000-3000Km and replaced every 10,000Km. To this end, motorcycle drivers have to deal with spark plugs and need to master some basic knowledge of spark plugs.

When the calorific value of the spark plug is selected incorrectly, it will cause engine failure. If a cold-type spark plug is selected for an engine with a lower temperature, a small amount of carbon deposits will occur on the electrode of the spark plug, which will quickly cause an electrode under-circuit, resulting in ignition failure. If the engine with reduced temperature uses a hot-type spark plug, the heat of the spark plug cannot be conducted in, so that the electrode temperature rises very high, which will cause spontaneous combustion, resulting in disordered ignition of the engine and reduced power.

Spark plugs are consumable parts on motorcycles. When encountering unusual ignition, the first thing to consider is whether the spark plugs can be maintained and replaced. What kind of spark plug to change, how to replace each other, it is necessary to find out the meaning of the code name of the motorcycle spark plug rules. Now take the T4135 spark plug as an example, where T represents the model is the standard type, if there is no letter, it is the general type. Type spark plugs, 5 is medium calorific value type, numbers greater than 5 are cold type. It can be seen from the above that only spark plugs with the same thread diameter and the same thread screw length can be installed on the engine for use, but pay attention to its calorific value effect.

Motocross