I bought an 06 sv211 last year and it has been running fine. A few weeks ago it lost power while pulling a skier and sounded terrible...like a muscle car instead of a race car. I took it to a mechanic who said I burned up 2 valves which he replaced. Went skiing yesterday and after pulling a few skiers it started knocking real bad when I shut down. The thermometer was reading about 180 and there was a lot of exhaust. Any thoughts on what is causing the knocking?
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That temp is a little high. Not terrible though. I would suggest hooking the engine up to a DIACOM and getting the full story there. That's probably the best way to determine what's going on. Any Nautique dealer will be able to do that, or you can buy the software yourself, but it is pricy.I own and operate Silver Cove Marine, which is an inboard boat restoration, service, and sales facility located in Mooresville, North Carolina. We specializes in Nautiques and Correct Crafts, and also provide general service for Nautiques fifteen years old and older.
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