Weird thing happenned a couple of weeks ago. Had used the boat the prior week, no problems on the water in terms of engine performance, etc. flushed and cleaned as ussual. Next week before using the boat filled up with mercury quicksilver oil (last three fills I used West Marine with the same TC specs) as it was about 80% out.
Upon turning on, excessive blue smoke came out of the exhaust. I mean a lot of smoke, enough to create a 10 feet high curtain. I idled away for about 15 minutes, and when accelerated, engine would no rev up higher than 5,000, all the while the soke still trailing me. I decelerated and magically, the smoke disapperead and the engine started reaching full revs and speed on WOT. On my way back it happened just once again, but soon corrected itself.
A friend who has been around boats all his life bets 100% it is a clogged or water contaminated fuel filter. I changed boith filters and turned on at home, and smoke levels are at normal. Haven't had the chance of trying on the water.
Any suggestions as to the cause? I've read these symptoms are ussualy found on engines wearing out, and yes, my engine has around 250 hours. But my mainenance has been very very good, and 250 hours is not enough for a rebuild, in my opinion!
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