Has anyone increased size of the breather "jet", located left side power valve.
It seems pretty small hole, and of course it was clogged useless.
Old bike had bigger caliber, and I believe also bigger drain hole in cylinder wall.
Stock S3 piston ring ends are close together and travel through port, while vertex has them spaced, never leaving the wall.
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EC 300 2008
EC 300 2018 GP
tenere 700
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