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In this brief and simple guide, follow the instructions to remove and replace the spark plug of the Yamaha Xmax 250 scooter engine. First, place your scooter on the centre stand and open the under-seat compartment by unscrewing the fixing screws to access the top of the engine, as shown in the video. At this point, disconnect the spark plug cap and use a socket wrench with an extension to unscrew and remove the spark plug, replacing it with a new one (of the correct type and with the same thread), and reassemble the under-seat compartment!

Updated on 30 June 2026 by ScegliAuto

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