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Frequently asked questions about cars and motorcycles

Replacing Crankshaft Oil Seal Gasgas EC 300

Model: Gasgas Ec 300

Video tutorial

In this video tutorial, you will learn how to dismantle and replace the crankshaft oil seal on a Gasgas EC 300. First, remove the cover/protection of the sprocket by unscrewing the fixing screws; then remove the sprocket seal ring and take off the chain by removing the link pin. Next, remove the sprocket and gently pry on the sides to extract the oil seal, as shown in the video.

Lubricate the new oil seal and refit it correctly into its seat.


Updated on 9 April 2026 by ScegliAuto


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by ScegliAuto

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