Choosing the correct spark plugs can sometimes make the difference between losing or winning a race. In fact, we often forget about their importance, but in reality, they are essential for the operation of an engine while maintaining the correct carburetion lap after lap. Their maintenance is extremely important. Some people replace them too often and some replace them…too late! To put you to the test and find out more about these components (so small, yet so crucial), we turned to Mauro Villa – a highly experienced kart engine specialist – who knows exactly how they work and how important they are in running the vehicle on the track.
IT IS NOT RECOMMENDED TO CHOOSE A DIFFERENT SPARK PLUG FROM THE ONE WHICH WAS INSTALLED ON THE ENGINE AS ORIGINAL EQUIPMENT
Answers Mauro Villa
Kart engines tuner with great experience
Spark plugs fitted as original equipment are generally those which represent, for the engine’s manufacturer, the best compromise between cost and quality (Editor’s note: or those who have a technical partnership agreement that has been established). Therefore, if the spark plug used with the engine does not represent the non plus ultra itself, it can be changed without any problems (Editor’s note: unless we are referring to specific single-brand championships in which the make and model of the spark plugs that can be used is established by the regulations and cannot be changed at will), as superior ones can always be found elsewhere in the market place, with improved materials, providing better performance and, of course, they do cost more. Most amateurs and mechanics rely on NGK or DENSO (Editor’s note: to get an overview of the marketplace, we recommend reading this article “Must Have | Kart Spark Plug, which one should you buy?”). The choice of which spark plug to use, and its heat range must be made according to the type of engine and its preparation when tuning the engine.
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