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    OMC 305 OVERHEATING AT IDLE & HIGH RPM

    I HAVE A '88 OMC 305 I/O ON A BAYLINER. WITH EARMUFFS OR IN WATER, IT HEATS UP AT IDLE OR HIGH RPMS (3200+). THIS MOTOR HAS A 160 THERMOSTAT AND SHOULD BE ABLE TO RUN AT 4000 RPMS AT ABOUT 165-170 DEGREES. THE BEST RESULTS I GET FROM IT IS 175 DEGREES AT ABOUT 3000RPMS. ANY MORE THAN THAT AND...
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