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    Have to choke throttle on 2005 350 Mercruiser to start.

    Hello, I have 05 Campion with a 350 Mercruiser. It seems like 50% of the time I have to choke the throttle in order to get the boat to run and idle. I constantly add Seafoam to my fuel in hopes to clean out the injectors but have not had any luck to date. could this be and air intake issue? Any...
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