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#43411
jerry-ahrens
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    i have an At 10 that was also stuck. After I managed to get it unstuck, it has the same problem. I found all of the rings were stuck into the grooves. The problem is, on this motor, there is really no way to get at them besides disassembling the powerhead. If you do, be very, very, carefull trying to pry the rings loose with a screwdriver. They will beak so quick, you won’t even know it happened! Soaking with Engine Tuner, or Mercury Powertune may work, but again it will be hard to get the cleaner into the ring grooves to do it’s job.
    Speaking of piston rings, I broke some of mine as well, and need to find some new ones.