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    Tank higher than carbs, oil everywhere.

    Originally Posted by tashasdaddy munrose, also if you tank is higher than the carbs, the oil will siphon down to the carbs and fill them. i disabled my OMS pump, on my pontoon boat, because of this. My tank is higher than the carbs on my pontoon boat as well. There has been oil in the carbs...
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    Black Oily carbon from prop hub

    I have a 2002 Johnson 90 hp that has an black oily carbon discharge that comes out of the prop hub. I've learned from other blogs that it could be because I troll 100% of the time or that it runs too rich. Is the oily discharge a big problem? What can I do to fix it if so? When I...
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