"I have another thread on here regarding my engine's compression and have had some good advice. From the back of the motor, top left 100, all others 120. I was hoping that it would only need a simple decarb, but after my third shot and taking it out twice fishing & cruising and consequently burning about 10 gallons of SeaFoamed gas through it, things appear to be getting worse. After my first decarb, the cylinder hit 105 - today was only 90!!!! Other three are still showing as 120, so I doubt my gauge is wacky. It idles like it has a lopey cam, but sounds great when cruising, wot, etc.
A lady at work's son is a marine mechanic - seems trustworthy. I called him today and just over the phone he is recommended a rebuild. He would obviously do a visual inspection first, but said rebuilding one cylinder is just a patch and that the labor between 1 and 4 isn't that much different b/c it's a complete teardown to hone that one cylinder anyway. He also won't do a rebuild without replacing gaskets, servicing lower unit, water pump, etc b/c he said he doesn't want something else to break and risk his reputation on the job. Seems reasonable. Anyway, he was guestimating $1500-1600 for one cylinder or around $2000-2100 for all depending on block condition - whether they would just need new rings, etc.
Sounds like I'd have a "new" motor, but not sure what that's good for. What is the life expectancy? Could I expect another 11yrs or just 2-3? He said that mine in its current condition could last a week or a year or two - who knows, but that one thing is for sure - I have a cylinder issue and it will get worse and possibly take the block out w/ it.
I guess my only other option is a new 4 stroke - would LOVE that, but I don't want a payment on a $10,000 motor, so it looks like this is my only real option. Is it a reasonable price?"