Perhaps the translation was off.although i havent had my bottom end to bits,every other seal ive seen anywhere,ever,has lips to oil/inside,ie opposite to yours.wether it matters is another question!
If the lips taper either in/out in profile it would suggest theres a right/wrong way.
Only reason i can think of for that way is if crankcase press is negative, (vacuum).my 2t theory is a little rusty,is the crankcase pressure positive or negative?or fluctuating between?
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2013 ec200r
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