How to Mount a Lowrance Scanner Through the Hull Transducer Kayak

Kayaks allow you to explore fishing destinations that might be impossible to reach in other boats. To help you find the elusive fish in these seldom-fished locations, use a fish finder. Fish finders have two parts: a display unit, which you mount on the kayak's deck with screws, and a transducer. Lowrance offers fish finders that use several types of transducers. Because a kayak lacks a transom, and sealing a hole in plastic fishing kayak for a bolt-through transducer seems daunting, a shoot-through-the-hull transducer works best.

Things You'll Need

  • 80-grit sandpaper
  • Marine adhesive sealant
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Instructions

    • 1

      Find a flat spot on your kayak's hull to mount the transducer. It needs to shoot through the hull, so it must sit directly on the bottom of the hull. Lowrance recommends mounting it in the back third of the kayak as close to the center line as you can get.

    • 2

      Rough up the mounting location with 80-grit sandpaper.

    • 3

      Spread 1/8-inch layer of marine adhesive over the area. Extend the adhesive beyond the width of the transducer by 1/4 inch on all sides. When you apply the adhesive, make sure to keep any bubbles from forming. If bubbles do form, pop them.

    • 4

      Push the transducer into the layer of adhesive with a twisting motion. The twist will pop any bubbles that you missed.

    • 5

      Set a heavy book evenly on top of the transducer until the adhesive cures. Let the adhesive cure according to the manufacturer's instructions, usually 24 hours.