How to Add a Sea-Doo Depth Finder

It isn't uncommon for owners of Sea-Doo personal watercraft to hit speeds in excess of 65 miles per hour while cruising lakes, rivers or other bodies of water. At these speeds, the risk of striking submerged obstacles like logs or other debris is real. However, thanks to electronic depth finder kits, the risk can be minimized greatly. Sea-Doo depth finders function like fish finders and use a transducer that uses echolocation to identify objects beneath the surface of the water. These objects appear on a display gauge, which is already built into to most Sea-Doo models.

Things You'll Need

  • Epoxy
  • Depth finder kit
  • Screwdriver
  • Plastic ties
  • Wrench
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Instructions

    • 1

      Take off the center support and front and rear seats to access the water box or muffler. The transducer mounting area is located under the muffler on some Sea-Doo models or next to the water box on others.

    • 2

      Remove the muffler with a wrench if your model Sea-Doo's depth gauge is located in this location. If it is located near the water box, use a screwdriver to remove the clamp holding the rubber exhaust hose in place and then move the hose out of the way.

    • 3

      Use a rag or a scrub brush to clean off the mounting area surface, hold the transducer base in place and then use a marker to mark the area.

    • 4

      Spread the epoxy and then mount the base. Allow time for the epoxy to dry. Drying times may vary depending on the type of epoxy used.

    • 5

      Insert the gel pads from the kit inside the transducer base and then lock the transducer cable into the base by twisting it firmly to the right.

    • 6

      Run the transducer sending cable to the battery area and then remove the battery's negative and positive cables with a wrench. Secure the length of the sending cable with plastic ties.

    • 7

      Connect the transducer sending cable end to the wiring harness.

    • 8

      Use wire strippers to cut the red-white wire and the white-black wire from the other end of the engine wiring harness. Use wire strippers to strip the ends from these wires, leaving about an inch of wire exposed. Route the wires to the bus connector.

    • 9

      Connect the white-black wire ends into number one and number two bus connectors. Connect the white-red wire ends to the number three and number four bus connectors.

    • 10

      Unplug the two MPEM (multipurpose electronic module) connectors. The inside of these connectors will be numbered. Connect the purple transducer cable wire to the number 22 slot in the MPEM cable on the right hand side. Connect the black transducer cable wire to the number six slot in the first, or left hand side, MPEM connector. Plug the MPEMS back in.

    • 11

      Replace the battery cables with the wrench and replace the seats and center support.