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    Mercruiser 350 (300hp) Difficult to start when warm?

    ECM is overheating (heat soak) space ECM off the riser with a plastic block
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    engine dies - seems like fuel starved - now fine again?

    Are you running fuel Additives? To much additive is not good New fuel runs much leaner now days so when you add more to tank motor builds more heat. ECM could be overheating
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    2011 Sea Ray 260 Engine misfire code?

    Fuel additives?????? Stop using fuel stabilizer of any type ECM mounted to riser??? If so make a insulator from a piece of marine grade plastic min 3/4" thick reroute air intake hose to blow cool air on ECM This took care of my problem on my 2003 350MPI
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    270 Sundeck Thread - Questions & Answers

    I use trailering clips all the time I trailer
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