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Frequently asked questions about cars and motorcycles

How to Replace the Gearbox Oil on a KTM EXC 124

Model: Ktm Exc 125
Part: Transmission fluid

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Today, we will go through step-by-step instructions for performing routine maintenance by replacing the transmission oil on the KTM EXC 125 enduro bike. First, warm up the engine for a few minutes, then unscrew the drain bolt to allow the oil to drain (use a socket spanner); let the oil drain into a container for about ten minutes.

Next, clean the drain plug thoroughly to remove any metallic debris; then unscrew the filler cap and top up with new transmission oil!


Updated on 1 June 2026 by ScegliAuto


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by ScegliAuto

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