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  1. #11
    MSX 150 guy lives on Mr. GP1800's Avatar
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    Here is all of the wiring installed in my MSX 140. This was really a lot of messing around. I had to splice into the yellow wire in the main harness to tap for the signal to the LR-52. I also had to tap into the orange/black near the 2 connectors that go up to the gauge under the hood. I then ran an orange wire back off this splice, and inside the main harness I installed the diode. There is an orange and a yellow wire exiting the harness near where the LR-52 is mounted in the foam.

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    I did this all with weather pack connectors, so it can all be removed and the only non stock parts in the boat will be the capped off plugs on the yellow and orange wires exiting the harness near the battery. This will allow me to power a bilge pump and in my case a depth finder, and be able to use the blue mode button to control them with the engine off. You can see the empty 2 pin plug near the battery. I then made this little harness for my bilge pump and depth finder connection. There is an inline fuse holder for a 3 amp blade style fuse for the bilge pump.

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    For anyone wanting to do this, I did have a fair amount of time invested in this project. Fishing wires through the harness is not easy, and making good splices takes attention to detail. My splices were all soldered and protected with heat shrink tubing.


  2. #12
    Click avatar for tech links/info K447's Avatar
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    Good wire harness work does take time, not only to make it look good but be reliable over time.

    When I do one-off harnesses and such I sometimes label all the connectors and major sections. Mostly so I don't need to reply upon my own memory for how the thing works!

    Yours looks looks nicely done!

  3. #13
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Bryan, can you upload a picture of the connector on the back of the gauge where the wire comes in? I may know where to get them so you wouldnt need to splice.

    Sean

  4. #14
    MSX 150 guy lives on Mr. GP1800's Avatar
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    I think they are just weather pack connectors. There are a pair of 6 pin plugs near the hood hinge

  5. #15
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Oh okay.

    Sean

  6. #16
    MSX 150 guy lives on Mr. GP1800's Avatar
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    I just discovered one small quirk in this system. If the gauge is showing RPM and you hold the blue button down long enough it changes the units of measurement on the gauge to Canadian.
    Last edited by Mr. GP1800; 02-02-2014 at 09:18 PM.

  7. #17
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by BryanP View Post
    I just discovered one small quirk in this system If the gauge is showing RPM and you hold the blue button down long enough it changes the units of measurement on the gauge to Canadian.
    So it also makes the ski faster!

  8. #18
    MSX 150 guy lives on Mr. GP1800's Avatar
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    We should sticky this in the How to section. I just was referencing this again to do the same for my Matrix project. Really good info here.

  9. #19
    ripcuda's Avatar
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    Good thread. I'm considering putting a bilge pump in my MSX 150. I like how you guys have done it on the MSX 140.

    My only question is which wire on the MSX 110/150 would I use for the Yellow signal wire into the LR-52?

    Here's the charging system on the Weber.

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    Cheers!

  10. #20
    Click avatar for tech links/info K447's Avatar
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    I am not familiar with Weber electrical. If there is an 'engine is running' 12 volt signal you might be able to use that directly, without any LR module at all.

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