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  1. S

    5.7 merc manual

    Does anyone know where i can download a 1987 5.7 merc owners manual
  2. S

    Furuno Radar Problem

    I have a Furuno 1715. It will turn on but it just shows a black circle. It show it at different ranges and in and out of port. Is there a setting or something I should be doing?
  3. S

    Run with 1 or 2 engines

    Hi I am planning a trip from Sheboygan WI. to Marinette WI. The trip is around 120 miles give or take and I want to get the best gas milage. I have a 1987 270 Searay Sundancer with twin 5.7's. I am new with boats that have twin engines. When I go should I run both engines or only one?
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