3
2) Inside Hull Mount. This option is recommended for the best high-
speed performance (above 40MPH or 65KHP), but reduces sonar
sensitivity and temperature sensor responsiveness (see page 5).
3) Electric Trolling Motor Mount. This requires hardware #019107
EZ Mount Trolling Motor Bracket (not provided).
4) Transom Mount. This requires #019106 EZ Mount Transom
Bracket (not provided) and is an option for special cases, such as
pontoon boats, where mounting the transducer on the bottom of
the hull will not work.
Outside Hull Mount
In order to mount the transducer on the bottom of the boat at the transom,
you will need the following tools and materials:
Pencil
Drill with an 1/8" bit
Clear 100% silicone caulk
Phillips screwdriver
STEP 1 – Choose the right location
The transducer must be located on the bottom of the hull, close to the
transom at the back of the boat (see Figure 1). It should be as close to the
center as possible excluding the turbulent area in front of the propeller. If
your hull has several steps, only the lowest step may be in the water at high
speeds.
You may get the best results by taking a test run with your boat before the
install, having a helper find the spot where the water flows clearest behind
the transom.
Caution:
Make sure that the location you choose is a flat surface, to
prevent transducer case warp when the screws are tightened.
Caution:
Make sure that the location you choose will not cause the
boat to rest on the transducer when the boat is trailered.
Note:
On a riveted aluminum boat, do not mount the transducer
behind a row of rivets, because they can cause turbulence that
interferes with the transducer operation at speed.
STEP 2 – Prepare the surfaces
Remove and clean any debris, oil, gas or detergent from the mounting area
and let it dry. Make sure that the transducer is also clean and dry.
