There is a drilling in the side of the plug in which you can put a size 3 Allen key or a Torx key T10 (usually found in the your BMW toolkit) in order to fit and remove it.
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Also referred to as oil filler cap.
This part is an optical improvement for your bar risers as...
This cover for the open hole beyond the swingarm pivot is...
Many BMW riders think that their shift lever is a little too...