Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to Change Transmission Oil in EC300 GASGAS

Model: Gasgas Ec 300
Part: Engine oil

Video tutorial

To change the transmission oil in the EC 300, position the bike so that you can work on it safely (for example, lean it against a wall as shown in the video images). It is advisable to start the engine and keep it running, possibly while moving, for about 5 minutes to make the oil more fluid.

The first step is to remove the bolt from the transmission oil level check hole. Now, place a container under the engine block and, using the appropriate spanner, undo the bolt located under the engine itself, allowing all the oil to drain out. Once this operation is complete, reposition the bolt under the engine and proceed to pour the new oil into the hole next to the engine block, using a small funnel if possible.

After this, re-tighten the side bolt and you’re done!


Updated on 8 March 2026 by ScegliAuto


Related tutorials

How to Change the Fork Oil on a GasGas EC300?
How to Change the Fork Oil on a GasGas EC300?
Ec 300 To replace the fork oil on the GasGas EC300, first remove the front wheel by disconnecting the brake caliper and removing the central pin. Once the w…
How to Change the Fork Oil on the GasGas EC300?
How to Change the Fork Oil on the GasGas EC300?
Ec 300 To change the fork oil on the GasGas EC 300, loosen the bolts securing the fork at the bottom, near the wheel, and at the top, near the handlebars. O…
How to Change the Transmission Oil of the Gasgas EC 300
Ec 300 Briefly, we will go through the procedure to drain and refill the transmission oil of the Gasgas EC 300 2-stroke enduro bike. First, place the bike o…

How to replace the clutch lever on the Sherco SEF 300?

To replace the clutch lever on the Sherco SEF 300, you need to loosen the screws that secure the lever to its housing on the left side of the handlebars. Once these screws are loosened, you can unscrew the nut at the base of the lever to disconnect the clutch cable attached to the corresponding lever. Once the cable is detached, the lever can be removed from its housing and replaced with a new spare part; after installation, ensure that it functions correctly.

Watch the video!


by ScegliAuto

More videos