Recent content by Captain Bravo

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    50ESL73R No Spark

    Racerone, I think this is everything. Brown (stator ignition wire) to ground disconnected & connected to power pack - 719ohms. Trigger to trigger - 18.4ohms. Power pack brown to ground terminals, wires disconnected - 9950ohms. Yellow to Yellow (stator) - 1.1ohms. Power pack term 1 (brown)...
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    50ESL73R No Spark

    Racerone, they were within spec, but I didn't write them down and don't remember. I'll check them tonight after work and report back. Thanks.
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    50ESL73R No Spark

    I am no expert on boat motors, but I can see two possible reasons for the test results I am seeing. Either the stator is only producing "ghost" voltage that it cannot sustain under load, or the power pack is internally grounding that wire. I came here hoping someone would know how to test...
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    50ESL73R No Spark

    I am following the manual, or updated instructions. Things have changed since 1973, the manual recommended tools and spark plugs are no longer the recommended parts and procedures. The timer base, power pack, and stator are all CDI Electronics parts. Which I had understood to be as good or...
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    50ESL73R No Spark

    F_R, yes, the kill wire is disconnected. I neglected to mention that, but that's the first thing I did. After that I started doing the testing described by CDI Electronics. So I tested the ohms and then voltage with a DVA. Ohms and voltage on the timer base and brown wire from the stator...
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    50ESL73R No Spark

    I am almost at the end of my tolerance with this motor. I had a combination of problems recently (ignition and fuel). It took me a while to get that sorted out. I replaced the stator, rectifier, and timer base. That fixed the spark problem, and then there was a bizarre fuel issue that ended...
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    50ESL73R Fuel Pump Question

    Racerone, update on this. The new OMC fuel pump looks identical to the amazon pump with the exception that there is no hole into the pump on the back. All three have a boss on the back, but it isn't open to the interior on the original or the new OMC. And I am going to assume that the new pump...
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    50ESL73R Fuel Pump Question

    Racerone, I'm really glad to hear that. Thank you so much for your help. New pump on the way from Crowley.
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    50ESL73R Fuel Pump Question

    Racerone, maybe I didn't say it very well, but that's the one I bought that is definitely different than the original. Open port on the back, and missing one of the mounting bolts. Given that, I was looking for the original number 358784. Now I am not an expert on these, so if you tell me...
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    50ESL73R Fuel Pump Question

    Dingbat, I couldn't find the original oem anywhere. And all the available ones looked like the one I already had. Racerone, I'll take your word for it. It's been a year. I sure thought it looked like it at the time, but I may have missed something. Thanks guys. I'll let you know what...
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    50ESL73R Fuel Pump Question

    My fuel pump is bad. The sheet metal check valves (reed valves) are rusted through. Last year I bought one from amazon. It was supposed to match exactly, but it didn't There was a port on the back that I assumed was for a pressure tap when it was mounted flat to the engine. Mine isn't, it is...
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    Tune Up Specs 1973 Johnson 50HP 50ESL73R

    I will try to do that Saturday. Weather is supposed to be good. I would really like to get this going. It is a lot of fun when it works. :)
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    Tune Up Specs 1973 Johnson 50HP 50ESL73R

    Jimmbo, that was my thought as well. In my experience, those can be difficult to diagnose.
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    Tune Up Specs 1973 Johnson 50HP 50ESL73R

    Update. The spark plugs look good, compression is good (160 165), both coils throw a 3/8" spark, and fuel flow looks good. All remain unchanged from a week ago. So I figured fuel flow. Borrowed a portable outboard tank. Had the wrong fitting, so I bought a hose barb from the hardware and...
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    Tune Up Specs 1973 Johnson 50HP 50ESL73R

    Jimmbo, that is pretty much what I was thinking. Planning on taking it from the top tomorrow. The weather report looks OK, only 20% chance of thunderstorms. Would love to take it for a cruise tomorrow evening.
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