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How to Replace the Crankshaft Oil Seal on the KTM SX 250

Model: Ktm Sx 250

Video tutorial

Today's main instructions will show you how to remove and replace the crankshaft oil seal on the KTM SX 250 enduro bike. First, place the bike on a stand and begin by removing the clutch cover, then remove the oil seal cover; use a small, thin, pointed lever to remove and replace the oil seal with the new one, inserting it until it is flush, as shown in the video.

At this point, refit the cover and pour in the new suitable oil, adding the correct amount (as indicated in the user and maintenance manual)!


Updated on 17 October 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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