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Type: Posts; User: martincom

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  1. Replies
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    I'm wondering if you have something pulling down...

    I'm wondering if you have something pulling down the 21/45 VDC line (white/red wire). I'd disconnect the EMM and then place an ohm meter between the white/red wire and ground. Next, I'd disconnect...
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    You can adjust the cable so the butterflies are...

    You can adjust the cable so the butterflies are fully open. However, in my experience, when I've done so, there is still tension on the throttle cable when released to idle. This may or may not...
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    The service manual sets forth the procedure...

    The service manual sets forth the procedure clearly. I'm assuming with the number and depth of your posts, you have a copy,
  4. Thread: Overvoltage

    by martincom
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    75

    I just realized you have multiple threads going...

    I just realized you have multiple threads going for the same watercraft. The capacitor I spoke of is for the 21/45 VDC system. The 12 volt system is independent of that. So it shouldn't have any...
  5. Thread: Overvoltage

    by martincom
    Replies
    6
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    75

    There is a large, external, filter capacitor on...

    There is a large, external, filter capacitor on the 21/45 VDC supply line (white/red wire). I'm not sure where it is mounted on a Genesis. It is about 2" in diameter and 5" long, best guess. It...
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    Yes, it should rise to 25 psi near...

    Yes, it should rise to 25 psi near instantaneously. What is the history of this watercraft? Old fuel? I'd speculate you have contaminated fuel and the pump intake screen has blockage in it. See...
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    You'll want to reinforce the fuel pressure...

    You'll want to reinforce the fuel pressure regulator, regardless. It is not if it will fall off, but when.

    Here is a link to an affordable fuel pressure gauge.
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    A suggestion, avoid using non-descript thread...

    A suggestion, avoid using non-descript thread titles such as "Trailer Queen". Rather, the thread title should list the full year, model, injected or carb, and brief problem symptom. My expertise is...
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    If the DC voltage at the injectors (white/red...

    If the DC voltage at the injectors (white/red wire) is correct (approx 21 volts while cranking and 45 volts while running - everything must be connected for accurate measurement); check your fuel...
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    The TPS sensor utilized on MSX140 cannot be...

    The TPS sensor utilized on MSX140 cannot be checked with an ohm meter, such as the early year sensor.

    Have you checked the fuel pressure? The fuel pressure regulator is notorious for falling off,...
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    I don't have an opinion on the pistons. So I'll...

    I don't have an opinion on the pistons. So I'll leave that to someone with more experience/knowledge.

    As to the no exhaust gasket gaskets and a sealant instead, yes, that is a factory assembly. ...
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    I have the LED tool I fabricated a few years ago....

    I have the LED tool I fabricated a few years ago. I don't utilize it any longer since I now have the diagnostic software. I'll sell it for $50, with the service bypass jumper plug (required),...
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    I'd check the fuel pressure next. There is a...

    I'd check the fuel pressure next. There is a test port Schrader valve (tire valve stem common appearance) in the return fuel line between the injectors and fuel tank. You can obtain an affordable...
  14. You're not alone. I have learned the definition...

    You're not alone. I have learned the definition of "ass-u-me" more times than I care to admit. They say the best lessons in life are those you pay dearly for---so you would think I would have...
  15. Did you check things like ring end gap when you...

    Did you check things like ring end gap when you assembled it?
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    Look here. (http://pwcmanuals.shorturl.com/)

    Look here.
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    So, what is your best time, from start to finsh,...

    So, what is your best time, from start to finsh, for pulling the canister and re-installing it? The last time I did one was six hours, with some interruptions. I'm thinking you're going to beat me...
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    It could be contaminated fuel that is plugging...

    It could be contaminated fuel that is plugging the pump intake screen. See this thread.
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    The brown/blue wires are the fuel gauge sending...

    The brown/blue wires are the fuel gauge sending unit.
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    Yes, the voltage at the brown wire should drop to...

    Yes, the voltage at the brown wire should drop to zero or near zero when starting/running. However, it will do the same if there is a poor connection between EMM pin 40 and the pump as well as on...
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    You may want to check the pump connections/pins...

    You may want to check the pump connections/pins at the top and within the canister as you've had it disassembled a number of instances now. If the voltage at the brown wire is dropping to 0.48 vdc...
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    I just utilized a tooth brush and compressed air...

    I just utilized a tooth brush and compressed air to clean the screen, rather than removing it.

    I'd suggest you obtain a replacement pleated filter, also. There is likely foreign matter caught in...
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    As to your bilge pump issue, I don't believe it...

    As to your bilge pump issue, I don't believe it is related to the fuel pump issue. They have an excellent block diagram of the bilge pump circuit and circuit overview in the service manual. I...
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    Before you swap EMMs, check the current draw of...

    Before you swap EMMs, check the current draw of the fuel pump with a multi-meter configured to measure current. An OEM pump will typically draw 2.0 amps. We've encountered so-called "direct...
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    You can find an answer to your question here...

    You can find an answer to your question here. If you don't find a photo that depicts it, check the wiring diagram for the wire color that feeds the primary of the ignition coil, which will be...
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