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To replace the spark plug on the Kymco Agility City 125, open the scooter seat, unscrew the 2 star screws holding the cover at the front below the seat and remove it. Once the cover is off, pull off the spark plug cap; insert the appropriate spark plug tool into the spark plug and use a screwdriver in the holes of the tool to turn it, then unscrew by hand and extract the spark plug. After removing the old spark plug, take the new one and insert it using the spark plug tool, screwing it in first by hand and then turning it with the tool while inserting a screwdriver in the holes of the tool. Replace the spark plug cap, reattach the cover below the seat by screwing in the star screws, and finally close the seat.

Updated on 13 May 2026 by ScegliAuto

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