Depth Finder

I installed it on mine. It's and easy install but you will need the electric accessory unit for it to work. The depth finder works when going slower than 15 good. In choppy water or fast it will not read.

brewster said:

has anyone installed the depth finder yet? does the top deck need to be removed? how well does it work?

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I also wondered does the whole deck need to come off or can it be done just taking the back section of deck off.


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I took the whole deck off, it's too easy to even think about shortcuting it. Mine works at all speeds. But as it's been said it gets erratic in chop at high speed.


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How much ?

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Can anyone tell us how its installed, or give us the directions to take a look at? Did you have to drill a hole through the bottom of the hull, or is something already provided? Thanks!

It is screwed to pre drilled holes on the inside of the hull. There is no need for drilling, the sonar goes through the plastic and doesn't need to be on the outside of the hull.


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Here is my how-to from when I installed mine.

http://www.seadoospark.org/forum/showthread.php?t=6282


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I had mine installed by my dealer. It tracks at all speed except in chop as mentioned. When I trim the nose up it gets less accurate as you might expect. I really like having it. It has let me a better understanding of the depth of the different regions of the lake where I ride.

Thanks for all the input!

I guess I always wanted one, but $400 is crazy!!! The profit margin must be HUGE. Other depth finders are $100 (which I'm thinking about looking into). I know that those won't integrate into the Spark's display, but still ... $400?

I'd like one, but for me, I've studied the local charts and where I ski, if its shallow, I can easily look down through the turquoise water and see the white sand.

Anyone, try an aftermarket depth finder?