I have a 2004 23 foot boat with twin Yamaha F115s. Engines have about 1100 hours on them all mine and all in the ocean. On our last trip, after running great for a few hours our Starboard engine lost power and then wouldn't start. Took to the shop. Cylinder 2 compression is down to 100 of 150 and cylinder 3 is 140. My mechanic who has always done a good job is saying he does not recommend a rebuild given the age of the engine. Doing some searching on the web some other "experts" have stated a similar sentiment on engines 10 years old or older that have been in saltwater all their lives. Compression on other engine is still ok.
I would love to hear of any similar experiences or any input on the decision. Boat, while useable, has some other long term issues that would be expensive to eventually fix so hard to think about a total repower. Not sure she would sell for much in her current condition.
Thanks in advance!