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    Too much engine Oil in 2003 Mercury 90 HP 4-stroke

    Hi, I've seen in the manual and heard several times DO NOT OVERFILL the crankcase with engine oil. Well, the last time I changed the oil, I found it to be a bit overfilled before I began. So I was careful not to overfill it myself. Now, a few months later, I'm trying to get ready for a...
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