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How to Change the Oil in the Gearbox of a Gasgas MC 125

Model: Gasgas Mc 125
Part: Transmission fluid

Video tutorial

Today, we will see the necessary instructions to change the transmission oil of the Gasgas MC 125 enduro bike. First, place the bike on a stand and start unscrewing the oil drain bolt located under the engine, allowing it to drain into a container for about ten minutes; then clean the drain plug of any metal residues, unscrewing the oil fill cap as shown in the video.

Finally, top up with the correct type and quantity of new gearbox oil; then start the engine!


Posted on 27 March 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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