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Frequently asked questions about cars and motorcycles

Replacing the Chain on Malaguti Dune 125

Model: Malaguti Dune 125
Part:

Video tutorial

Remove the bolt that secures the upper chain guard and take it off, then do the same with the small front guard as shown in the video (there are two screws here). Now loosen the various bolts that tension the chain itself, until you reach the central pin. Extract the chain from its seat, but first remove the retaining clip using any tool that makes the operation easier (a flat screwdriver as shown in the video, or a pair of fine pliers will work).

Done! Now proceed in reverse for reassembly. This is not a very difficult operation but it does require time.


Updated on 13 April 2026 by ScegliAuto


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How to Replace the Piston on a Derbi GPR 125

To replace the piston on a Derbi GPR 125, loosen the bolts securing the cylinder head to its housing, allowing it to be removed along with the valve cover. This will enable you to access the bolts securing the cylinder at the top of the engine, allowing for its complete removal and revealing the underlying piston. The piston can now be freed from its securing bolts, enabling you to position the new piston onto the corresponding conrod. After installation, refit the engine components.

Watch the video!


by ScegliAuto

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