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Won't start

Mercury MerCruiser

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Old 07-15-2012, 02:30 AM   #1

DItR is currently offline
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Default Won't start

Hey guys,
Have a '92 mx19, 4.3LX / V6 with Thunderbolt IV Ignition.
Haven't tried starting it in 3-4yrs. Finally tried this year. No go. It cranks, won't start. Getting fuel to the carb. No power to the ignition coil. Good battery, looked at all the wires I can see, nothing jumped out at me that looked wrong. Tested coil by turning key on & checking positive post. Nothing. Any suggestions?
Thanks,
John
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  • Old 07-15-2012, 03:59 AM   #2

    mikeyt is currently offline
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    Default Re: Won't start

    Yep. Read this sticky located here in the Maintenance & Repairs section.
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    Old 07-15-2012, 10:40 PM   #3

    DItR is currently offline
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    Default Re: Won't start

    Thanks Mikey, the sticky did help me to test the ignition switch, which is good btw, but didn't help me beyond that. My engine cranks over but is not getting any spark. The + post on the ignition coil is dead. ( actually, cranking it has 0.2 volts coming to it.) I have a Clymer book & it says, "if no voltage is noted on the ignition coil + post, then check the engine wiring harness, inst. panel wiring harness, battery cables and ignition switch for open or shorted circuits." It stops there & doesn't go any further.
    Have checked all of that & it all looks good to go. Obviously something is wrong but I can't find it. Any more help from you or anyone would be greatly appreciated.
    Thanks again.
    John
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