September 6, 2014 by Jim Harmer 14 Comments Before installing my fish finder on my pontoon boat, I spent 2 hours searching the web for a good tutorial on how to do it. If you have a good tutorial and someone to help, installing a fish finder can be a quick and simple project that takes about 45 minutes. I wrote some handy tips on selecting a fish finder, as well as the one that I ended up choosing here.
The transducer is the sensor that goes in the water that collects the data and sends it to the monitor. You may find that the cord going from the transducer up to the monitor only has enough length to run off one of the pontoons. Part of the problem I found was that I had selected a 7″ (18cm) screen for my fish finder. Once you’ve found where the monitor will go, get down on the ground and slide up under the console to make sure none of the gauges or other wires will interfere with the cord run or the mounting of the fish finder. While you are down there, also see where the manufacturer has run the cords through the boat. Removing the siding of the pontoon boat can feel a bit scary, but it’s actually extremely easy and is usually only held on by about 10 screws. With the siding removed from the side of the console all the way back to the rear of the pontoon, you will see where the manufacturer has snaked the cords. Once you have a clear path to place the wire inside the siding, put the plastic conduit shroud around the transducer wire and fish it through all the way up to the console.

While not really required, you may want to put just a glop of silicone on the holes in the console.
Last, drill an additional hole behind the bracket so you can put your transducer cord and power cord through. On my boat, I found that the factory had installed a fuse box with three accessory power fuses, and had empty connectors coming off the box. With the empty accessory plugs coming off the fuse box, I simply bought a matching male connector and crimped it on the electrical positive and negative cord from my fish finder and plugged it in.
Simply string the wires back from the front console back through the boat the same way you strung the fish finder cord. With option one or option two, exercise extreme caution when working with electrical and other aspects of your boat. I have a 2015 22' G3 Suncatcher V22RF Pontoon Boat that I use to tow the kids around the lake and fish for trout, bass, and kokanee. When going fishing, fish finders are useful tools that provide real-time information on the water depths, terrain, temperature and location.
While these devices are wonderful to have, installing a fish finder to your pontoon boat can be a little tricky. Generally, you don’t want to drill holes at all, and there are a couple of ways to do this without the need to drill holes.
You cannot drill holes in the pontoon and you don’t want it just loose so how do you attach it to the back of the pontoon?

In order to post comments, please make sure JavaScript and Cookies are enabled, and reload the page. GPS fish finders also provide information on the fish and other marine wildlife, and allow user to track them via this device. You need to make sure that you don’t drill in any sensitive areas, especially the closed cylinders that allow the boat to float.
So, first of all, you need to figure out where would be the best place to place the transducer (back, front or sides). I used the same transducer bracket and it was already mounted off bottom of the bracket and the transducer is well below the starboard pontoon lowest line. But, there are a few steps that you can take to ensure that you’re not going to sink your favorite piece of merchandise. The major benefits of having a fish finder is that you can program your favorite fishing spots into the GPS fish finder, and you will be taken directly to the area. The GPS fish finder will then remember these GPS coordinates for the next time that you head out to go fishing.

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