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Fish Finder Install

January 5th, 2010 · 8 Comments


front view of Cuda installMy lovely wife found me an Eagle Cuda 350s/map for Christmas! This is a great unit, that I’ve mentioned before, that includes GPS mapping and sonar for a great price. I’ll spare you the rest of the details about the unit.

I did finally manage to get it installed, and I’m ready to hit the water with it tomorrow.

I started with a RAM Mount. Most fishfinders sit too far away from theside view of Cuda mounted to RAM Mountseating area when installed in the Sonar Shield of the Trident 13 and 15. The Sonar Shield was also designed to be ideal for Hummingbird fish finders. This is an Eagle, so things are going to be a bit different.

The RAM Mount is bolted to the front and off-center of the Sonar Shield. This location gets the Cuda the closest to me as possible, while keeping in the Sonar Shield confines. Being off-center allows the whole thing to fold up and store underneath the Sonar Shield when not in use. Do note, the fish finder head unit should be removed when transporting your kayak. Sonar Shield Closed

poly mountRam makes a ball mount specifically for Eagle fish finders, but my local dealer did not have any of these. No worries, just cut out some polyurethane and make it all work. Someday I might buy the specific mount, but, so far, this seems plenty good for me.

Passing the cable through the kayak is a tough part. Now, I would pass throughideally have a waterproof cable pass-through (you can pick them up from West Marine) drilled and mounted into place. I will get one very soon though. The Cuda needs a 5/8ths inch hole drilled to pass the cable through. I then filled with silicone on both sides. This is by no means the right way of doing things, but it will work on flat water for a week or two. I offset to the side a bit because I have other things i might try to install here as well… you’ll have to wait for that one…

batteryThe battery, in this case a Cabela’s 7amp Marine Battery (on sale, with charger, for $20!) fits well inside of the Trident’s factory battery case. The grommet in the front does well to pass through the battery cables, and my install is such that I can charge my battery while it’s still in my kayak. This battery is MORE than enough to power the Cuda, and I figure it will take many days of fishing before the battery dies. This is great, because I have the plans on a couple things that will suck more juice…

ducer foamI went with a dry mount setup for the transducer. With this setup the transducer can easily be removed and put in another kayak. The foam is cut to shape of the transducer, and just a hair smaller to provide a good snug fit. The foam is held in place with marine goop to make sure its not going anywhere and provides a water tight seal around the transducer. Why water tight? When it comes time to go fishing, I pull the transducer out, put a couple tablespoons of water inside the hole in the foam, reinstall transducer, and fish.

edit: by request, here is how the unit looks folded up all nice and neat under the Sonar Shield lid…

Tags: Gear · Kayak modification

8 responses so far ↓

  • 1 Rob // Jan 7, 2010 at 2:16 am

    Looks spot on, nice job. Do you think the water around the transducer might evaporate during a summer trip ?

  • 2 The Nothing // Jan 10, 2010 at 8:37 am

    Not at all! This area is below the waterline and keeps cool because of it. This setup also seems to work without water, as I learned on my second trip out.

  • 3 l conn // Jan 13, 2010 at 6:10 pm

    Keep it up!

  • 4 Paul // Apr 16, 2010 at 1:37 am

    Nice Job!

  • 5 Charles LABounty Merritt Island, Florida // Nov 20, 2010 at 6:45 am

    How about using fixodent to stick it down with?

  • 6 The Nothing // Nov 20, 2010 at 6:46 pm

    That’s not one I’ve heard of before. Theoretically anything that will adhere without air bubbles should be fine.

  • 7 Diana K. // Apr 7, 2015 at 11:26 am

    Is it completely sealed off and waterproof?

  • 8 The Nothing // Apr 7, 2015 at 12:02 pm

    Yes. Fitting used to pass through the hull is made fore at-or-below waterline use.

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