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Overheat Alarm

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  • Overheat Alarm

    I have a 2003 Yamaha 150 hp that has an alarm at *****ing speed only, the heat sensor is also flashing. This happens in 76 degree water, but when hooked to a hose and 55 degree water, it does not alarm PLease help!!!

  • #2
    Check PRV to see if it is stuck open,
    change water pump and thermostats if not been done lately

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