I recently acquired my first boat, a 2009 Stratos 176XT with a 2006 Yamaha 70TLR. The compression tested at 115/110/105. Is this low enough to consider this motor used up? I'm considering putting a sizeable amount of money it it (fuel pump, water pump and impeller, all filters, etc) because I don't know the maintenance history on it and just assume it's never been properly maintained. But I'm wondering if that money would be better put toward a replacement motor. Or perhaps a complete rebuild. Any advice on what to do with this motor?
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Low compression, too low?
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But shouldn't they be like 125 or 130? I'm not sure what the spec is. But it sounds like my readings may be acceptable. That's good news.
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