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    Mercury 9.9hp 4stk 2008 low compression

    I have a Mercury 9.9hp 4stk 2008 outboard with poor performance issues having a maximum of 5000rpms when it should be around 6000rpms. A dry compression test gives me 125psi on both cylinders whereas a wet compression test gives me around 160psi. I was originally considering doing a rebuild and...
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