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How to Replace the Spark Plug on a Kawasaki Ninja 400

Model: Kawasaki Ninja 400
Part: Spark plugs

Video tutorial

To replace the spark plug on a Kawasaki Ninja 400, you need to loosen the screws securing the seat, completely remove it, and access the screws underneath that secure the fuel tank at the front. Once these are loosened, you can remove the tank and subsequently the air filter box underneath.

Once all these components are removed, locate the coil, which must be disconnected to access the spark plug underneath. This can be removed with a socket tool, insert the new one, and reassemble all the components you just removed.


Updated on 3 October 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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