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This guide provides the main instructions on how to change the oil in the gearbox of the Gasgas EC 300 enduro bike. First, place the bike on the stand and start by removing the metal guard located under the engine; unscrew the oil drain bolt located underneath, allowing it to drain into a container for about ten minutes. At this point, clean the drain plug of metallic residues, unscrew the filler cap, and refill with new transmission oil; then check that the oil level is correct.

Posted on 11 September 2026 by ScegliAuto

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