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Frequently asked questions about cars and motorcycles

How to Replace the Spark Plugs on the Honda CB 650R

Model: Honda Cb 650 R
Part: Spark plugs

Video tutorial

In this video tutorial, you will learn how to remove and replace the spark plugs of the engine of the Honda CB 650R motorcycle. First, place the motorcycle on a stand and start by removing the passenger seat and the rider's seat; then unscrew the fixing screws of the fuel tank to remove it, as shown in the video.

At this point, disconnect the electrical connectors of the spark plugs, using a socket wrench with an extension to unscrew and remove them; install the new spark plugs, ensuring they are the correct type and have the same thread pitch, screwing them in by hand and then tightening with a wrench!


Updated on 21 July 2026 by ScegliAuto


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How to Change the Spark Plugs on a Kawasaki Z900RS?

To change the spark plugs on a Kawasaki Z900RS, follow these steps. First, ensure the motorcycle engine is cold. Next, locate the spark plugs on the engine, positioned on the top of the engine near the cylinder head. Using a spark plug socket, carefully unscrew the spark plugs from their housing. Take care not to damage the threads of the spark plugs or the cylinder head holes. Before installing the new spark plugs, check that they are the correct size and that the gap (distance between the electrodes) is set correctly. Screw the new spark plugs into the housing, ensuring not to overtighten to avoid damage. Finally, reconnect the spark plug leads and ensure they are securely attached to the spark plugs. Once the spark plug replacement is complete, start the engine and check that everything is functioning correctly.

Watch the video!


by ScegliAuto

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