Do it yourself
Frequently asked questions about cars and motorcycles
In this short and simple guide, you will learn how to remove and replace the engine spark plug on the Sym CruiSym 300, following the instructions below. First, place your scooter on the centre stand and begin by removing the under-seat compartment to access the upper part of the engine. Then, disconnect the spark plug connector, using a socket wrench with an extension to unscrew and remove it, as shown in the video. At this point, install the new spark plug of the correct type and thread pitch, applying the reverse procedure!

Updated on 7 July 2026 by ScegliAuto

Video tutorial

Related tutorials

Cruisym 300 Before you start, sit on the seat of your Sym CruiSym. Begin by turning on the ignition by turning the key in the ignition switch. Then, repeatedly p…
Cruisym 300 The Sym Cruisym 300 scooter is on par with all other scooters and cars, that is, when the service is due, the warning light in the shape of an Englis…
Cruisym 300 To replace the battery on the Sym Cruisym 300, loosen the screws securing the panel located at the bottom left of the steering wheel. Once these scre…

How to remove the engine from the GasGas EC 300?

To remove the engine from the GasGas EC 300, you need to loosen the bolts that secure it to the frame supports at the central lower part of the vehicle: once all the bolts securing it to these supports are loosened, you can disconnect the coil and all other connectors related to the sensors on the engine. By also loosening the bolts of the ducts, you can now completely remove the engine from its housing, allowing you to insert the new replacement part: once installed, you can check that everything functions correctly.

Watch the video!


by ScegliAuto

More videos