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  1. #1
    blegan's Avatar
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    oil tank sending unit & wires

    94slt750 I have removed oil tank ,injection pump & all lines. My question is this on the oil level sending unit is it o.k. to terminate these wires in the box.
    Thanks Brian


  2. #2
    Moderator beerdart's Avatar
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    Either tie the float in the up position or install a 33 ohm resister in the e-box.

  3. #3
    blegan's Avatar
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    Ill try tie it in up position, trying to put a resistor in the box is out of my skill level at this point. as always Thanks for the answer.

  4. #4
    seaobin's Avatar
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    super easy.

    go to radio shack buy 1 x 33ohm resistor, and 2 crimp on female blades. make sure you have long enough leads and you are done

  5. #5
    blegan's Avatar
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    radio shack

    Quote Originally Posted by seaobin View Post
    super easy.

    go to radio shack buy 1 x 33ohm resistor, and 2 crimp on female blades. make sure you have long enough leads and you are done
    Wow that is super simple, thanks I appreciate that! what exactly occurs when oil or fuel sending units are not working.

  6. #6
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Yeah, it is super simple to do.

    If you just cut the wires, it'll read low oil and either flash the red light and read low oil on the MFD, or give you a warning buzzer on other models.

  7. #7
    blegan's Avatar
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    sending units

    Thanks for the info, I wasnt quite sure! Ive never had a boat with an MFD
    & i wasnt sure how complex this system is. such as going into a limp mode.or something. 33 ohm. resistor it is

  8. #8

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    i would just use a zip tie , no need to go to radio shack , that what i do


    radio shack is the bomb for the 1/4 amp fuses tho , have you ever went in to advanced auto parts and asked for one ,

  9. #9
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Open the elec. box, and remove the oil sender blue wire from the circuit board.

    Install a female elec. connector on both ends of the 33 ohm resistor.

    Then install one end of the resistor onto the terminal you removed the oil sender wire from and the other end onto a ground terminal. (normally right next to the oil sender.

    Then tape up the sender wire end, or cut it on the inside leaving the wire in the box seal/grommet so you keep it water tight.

  10. #10
    Click avatar for tech links/info, donation request K447's Avatar
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    Arrow 33 ohm resistor inside electrical box to by pass oil level sender for pre-mix

    Quote Originally Posted by blegan View Post
    Thanks for the info, I wasn't quite sure! Ive never had a boat with an MFD
    & i wasn't sure how complex this system is. such as going into a limp mode.or something.

    33 ohm resistor it is
    If you are not comfortable crimping the terminals on the resistor, any electrical or auto repair shop should have the crimper tool.

    Be sure to have an insulator sleeved over the resistor, so it cannot short against anything when the electrical box is closed up.

    A length of heat shrink tubing does nicely - just enough to cover the exposed metal leads between the spade terminals

    Unplug the Blue wire that comes from the oil sender, and tape it off. Then plug one end of the resistor onto the Blue terminal on the board.

    The other end of the resistor connects to one of the available Black wire terminals.

    BTW, the wattage rating of the resistor doesn't really matter, electrically speaking. Even a 1/4 watt or 1/2 watt resistor is plenty. The only difference for your purposes is how fine the wire leads are.

    The larger the resistor watt rating, the thicker the wire leads are. Really small wattage resistors tend to be fragile, so if you can find a 1/2 watt or 1 watt 33 ohm resistor, it will be less fragile than a 1/4 watt resistor.

    Radio Shack 33 ohm 1/2W 5% Carbon Film Resistor pk/5
    Catalog #: 271-1104

    The resistor color banding code for 33 ohms is Orange, Orange, Black, and possibly a gold or silver band (doesn't matter which)
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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