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How to Replace the Transmission Oil of the KTM SX 125

Model: Ktm Sx 125
Part: Transmission fluid

Video tutorial

This guide shows you how to perform routine maintenance by replacing the transmission oil on the KTM SX 125 enduro bike. First, place the bike on a stand and start by unscrewing the drain screw located under the engine, allowing the oil to drain into a container for about ten minutes; then clean the small oil filter, replacing it with a new one if necessary.

At this point, unscrew the fill screw and top up with new transmission oil, pouring the correct amount as indicated in the owner's manual.


Updated on 2 August 2026 by ScegliAuto


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by ScegliAuto

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