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Frequently asked questions about cars and motorcycles

How to Change the Engine Oil on a Sym Jet 14 125

Model: Sym Jet 14 125
Part: Engine oil

Video tutorial

You can change the engine oil on the Sym Jet 14 125 by accessing the underside of the vehicle, near the exhaust: here you will find the oil drain plug, which can be opened to collect the used oil in a suitably placed container. Once the oil has completely drained, you can remove the oil filter located in the same position, replacing it with a new part.

Once the new filter is in place, you can top up through the designated breather on the left side of the bike.


Posted on 8 July 2026 by ScegliAuto


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How to replace the piston on a Derbi Senda 125?

To replace the piston on a Derbi Senda 125, completely remove the seat and take off all parts above the engine block. Next, disconnect the connectors and unscrew the bolts securing the cylinder to the top of the block, locating the piston inside. Remove the old piston from its connecting rod by loosening the retaining ring, and replace it with a new spare part. Finally, reassemble all the components that were removed earlier.

Watch the video!


by ScegliAuto

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