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How to Replace the Spark Plug on a KTM Duke 390

Model: Ktm Duke 390
Part: Spark plugs

Video tutorial

In this brief and simple guide, you will find instructions to remove and replace the engine spark plug on the KTM Duke 390 motorcycle. First, place your motorcycle on a stand and start by disconnecting the spark plug connector, located at the top of the cylinder head; then use a socket spanner with an extension to unscrew and remove the spark plug, as shown in the video.

At this point, install the new spark plug of the correct type and with the same thread pitch; screw it in by hand and then tighten with a spanner, following the instructions in the user and maintenance manual!


Updated on 19 August 2026 by ScegliAuto


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by ScegliAuto

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