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  1. R

    Mercruiser overheating

    I have a 1973 mercruiser 120hp. Motor is overheating. I put new water impeller, thermostat. I took off the hose going to motor from impeller really good flow, I took the hose off after water pump good flow, took water off before thermostat good flow then took off hose after thermostat no water.
  2. R

    1973 mercruiser 120 HP no spark

    I have a 1973 mercruiser that I changed the trim motor from a single solenoid to a double solenoid the trim is working but I am not getting any spark and I am lost.
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