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    1990 CV40ELD Overheat Alarm at plane

    Overheat alarm sounds after running on plane for a few minutes, stops within seconds on idling engine. Tell-tale water stream is strong and cold, cylinder head is warm to touch, I can readily keep my hand on it. Replaced thermostat, temperature sensor and rebuilt water pump with no improvement...
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    1990 CV40ELD Overheat Alarm

    My 1990 CV40ELD Overheat alarm sounds after running on plane for a few minutes, stops on idling engine. Runs fine at trolling speed. The tell-tale water stream is strong and cold, cylinder head is warm to touch, I can readily keep my hand on it. Replaced thermostat, temperature sensor and...
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    Yamaha CV40ELD Water Pump Issue

    After carefully refurbishing the water pump with a kit of parts and new lower housing, it seems that I have overtightened one of the bolts and damaged the gasket between the water pump housing and the cartridge outer plate in the area of one bolt. The photo shows where the area of the gasket...
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