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  1. #1
    TopCop931's Avatar
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    Need help with vent line

    I have a hose that has been just laying on the bottom of my hull and I can't figure out where it should be attached to. I know it is the fuel vent line that runs off the top of my fuel sender. I just can't figure out where it belongs. I have read it should attach to a nipple up at the front of the seat but I can't find the damn thing. Maybe I'm slipping, but I need some help on where to connect this thing. It has been disconnected since the day I got the thing. I have pics below. The little bit of water in the bottom of the hull was from when I was washing it earlier. Too tired to get out the shop vac.
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  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    That looks like the vent hose for the battery.

    If you have cheap regular lead-acid battery, it will have event nipple that connects to that hose.

    If you have a high quality sealed battery, like the recommended factory sealed AGM type, then there is no battery vent nipple, and the vent hose is surplus.

  3. #3
    TopCop931's Avatar
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    Quote Originally Posted by K447 View Post
    That looks like the vent hose for the battery.

    If you have cheap regular lead-acid battery, it will have event nipple that connects to that hose.

    If you have a high quality sealed battery, like the recommended factory sealed AGM type, then there is no battery vent nipple, and the vent hose is surplus.
    That is what I thought it was at first also so I didn't think anything of it because my battery does not have one of those nipples. However, today when I was cleaning up I decided to trace the line and it seems as though it runs back to the top of the fuel sender. I reached around and tugged the line a little and felt it move on the other side that is why I assumed it was the vent hose.

    I am going to go out and check it again. Maybe I am losing my mind.

  4. #4
    TopCop931's Avatar
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    Okay. Apparently I am at the very least, half nuts because I have no idea why I even mentioned the fuel sender because I already knew that it ran to a vent in the front storage compartment.

    I took some more pics. One of the lines runs from the MFD to the drive shaft. I am assuming to measure speed or rpm's. The other one runs to the vent on the hull located above the gas tank.

    I am guessing at this point that you are right K447. I guess that hose would vent the battery out to the front compartment if I had one of those type batteries. Please correct me if I am wrong because I am definitely slipping these days. Too much time in the sun I guess.
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  5. #5

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    k447 is right battery vent. if your battery has top up caps its a std lead acid bat. with tube at end

  6. #6
    TopCop931's Avatar
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    Quote Originally Posted by justfun View Post
    k447 is right battery vent. if your battery has top up caps its a std lead acid bat. with tube at end
    K447 is always right.

    I have no need for the line. My battery is sealed. The first thing I did when I got the thing was spring for a good battery, and a CDI and Stator of course.

    I was on here reading what you guys have to say about this thing before I ever touched anything on it. Many of you really know your stuff.

    There is a great group of people here and I am glad to have had the pleasure to meet you all. I hope to hang around for a long time and talk about all the great rides this summer.

    Speaking of great rides.....Anyone have a bat plate for a 96 SLT 780?

  7. #7
    Click avatar for tech links/info, donation request K447's Avatar
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    Arrow MFD speedometer pitot fin connection to clear hose inside hull under drive shaft

    Quote Originally Posted by TopCop931 View Post
    ...One of the lines runs from the MFD to the drive shaft. I am assuming to measure speed or rpm's.

    The other one runs to the vent on the hull located above the gas tank...
    The speedometer line does connect to a tiny plastic nipple that is under the drive shaft, but it has nothing to do with the drive shaft.

    That nipple is the top side of a pitot fin that sits in the water stream just inside the front edge of the intake grate.

    Make sure that clear hose is not leaking, kinked, cracked, or loose at the nipple. There is water pressure down there all the time the hull is in the water, moving or not.

    At speed, the pitot water pressure can be quite high, well over 30 PSI.
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  8. #8
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by TopCop931 View Post
    ...Anyone have a bat plate for a 96 SLT 780?
    Batwing plate, R&D grate & 6 degree wedge

  9. #9
    TopCop931's Avatar
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    Quote Originally Posted by K447 View Post
    I thought that one was sold. I guess that other guy didn't take it. I will check it out. I will check that line tomorrow also.

    Thanks.

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