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How to Replace the Spark Plug in the KTM Duke 390

Model: Ktm Duke 390
Part: Spark plugs

Video tutorial

In this tutorial, you will see how to replace the spark plug in the KTM Duke 390, a very simple and quick operation. First, ensure that the engine is cool enough to work safely, then position yourself on the right side of the bike, locate the spark plug connector, and disconnect it. Next, use a 14mm socket to gently unscrew the spark plug and remove it from the cylinder head.

Finally, insert the replacement spark plug, tighten it, and reconnect the power connector.


Updated on 4 November 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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