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    Mercruiser 4.3L Will Not Start

    The 30kV is being measured at the spark plug boot and the spark looks orange in color. Compression looks good.
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    Mercruiser 4.3L Will Not Start

    I checked the strength of the spark and I can only read a spark at about 30kV. Nothing higher which I know is low. Just can not determine why
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    Mercruiser 4.3L Will Not Start

    The battery reads 13.5 volts when measured from the positive terminal to ground when the key is in the on position
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    Mercruiser 4.3L Will Not Start

    I have sprayed the carb with starter fluid and nothing. I am getting a spark at each plug but my guess is it is not enough (spark is orange not blue). I ordered an adjustable spark plug tester that I can see how strong the spark is. I have tried a multimeter and my batteries are reading about...
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    Mercruiser 4.3L Will Not Start

    I have checked the engine grounds? Is that what you mean?
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    Mercruiser 4.3L Will Not Start

    I checked that I am getting a spark to each plug. Is it possible that either the charge is not enough or that the carburetor is not letting sending enough fuel to the cylinders?
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    Mercruiser 4.3L Will Not Start

    I have followed the troubleshooting guide. What is strange is I get less than a volt at the red white wire from the distributor when the key is in the on position. The guide says you should get 1 to 12
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    Mercruiser 4.3L Will Not Start

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    Mercruiser 4.3L Will Not Start

    serial number is 1a069772 and year is 1990. It was repowered in 2018
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    Mercruiser 4.3L Will Not Start

    I tried that several times after each fix I tried.
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    Mercruiser 4.3L Will Not Start

    Yes. Water/ Fuel separator changed and fuel can be seen in carborator.
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    Mercruiser 4.3L Will Not Start

    Sorry. Two new batteries as well. The belts start turning but no spark.
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    Mercruiser 4.3L Will Not Start

    I am new to this forum but have read a lot of great advice from people. I have a Mercruiser 4.3L engine that ran fantastic last season. I winterized the boat and when I tried to start the engine it would not start. I have now changed the starter, the distributor cap, the rotor, the sensor...
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