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To replace the cylinder and piston of the Aprilia RS 125, first secure the bike on a stand and lift the fuel tank cover. Once you have access to the internal components, remove the filter, carburettor, radiator tank, and battery using the appropriate tools. By removing the screws from the cylinder and sliding it out, the piston will be visible. To remove the piston, it will be necessary to take off the retaining circlip, being careful not to bend the conrod. Once the piston and cylinder have been removed, install the new parts by reversing the steps.

Updated on 7 May 2026 by ScegliAuto

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How to Change the Engine Oil in an Aprilia RS 660?

In this tutorial, we will see how to change the engine oil in an Aprilia RS 660, a very simple operation to be done every 12 months. First, ensure that the engine is completely cold, then remove the screws securing the lower fairing and take it off. Next, place a container underneath the bike, unscrew the drain bolt with an 8 mm hex key, and let all the oil in the system drain out. At this point, you can replace the filter, reassemble everything, and add new oil through the designated fill hole.

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