How to Dismantle the Engine of a Sym Jet 125 (With video)

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Frequently asked questions about cars and motorcycles

Car tutorial (Do it yourself)

Motorcycle tutorial (Do it yourself)

Frequently Asked Questions

Model: Sym Jet 125
Part: Engine

To dismantle the engine of a Sym Jet 125, loosen all the bolts securing the engine block to its housing at the central lower part of the vehicle. Once the engine block is freed from its bolts and connectors, it can be removed from its housing, and you can proceed to loosen the screws securing the cylinder. Once this is removed, you will be able to locate the piston underneath, which must be detached from the connecting rod by widening the corresponding ring. At this point, you can also remove the connecting rod and all other components contained within the engine block.

Updated on 27 July 2026 by ScegliAuto

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What Does the V-Belt Light Indicate on a Yamaha NMAX Scooter and How to Remove It?

If the V-BELT light has illuminated on the instrument cluster of your Yamaha NMAX scooter, it means it is time to replace the drive belt as it has exceeded the relevant interval. You can entrust this maintenance task to your trusted workshop; the cost will not be particularly excessive. Once this is done, you can manually reset the light by following the procedure shown in this tutorial. First, turn on the instrument cluster, then repeatedly press the left button on the dashboard to reach the service interval in question. At this point, press and hold the right button once to initialise the reset, and a second time to complete it.

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by ScegliAuto

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