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How to Replace the Spark Plug on the Kymco Downtown 300i

Model: (Various brands) Various
Part: Spark plugs

If you need to replace the spark plug on this scooter, you can find simple instructions in the description below and also refer to the video tutorial. First, open and flip up the seat; under it is the engine, and on the left side, you can locate the spark plug cap, which you can remove. Then take a socket wrench to loosen, unscrew, and extract the spark plug itself. Next, take the new spark plug, insert it into the housing, and proceed to screw it back in before finally refitting the cap.

Updated on 7 July 2026 by ScegliAuto

Video tutorial

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