Vexilar CLC-200 - Manual (Page 7)

With the mounting bracket
attached to the transducer,
hold it up to the boat where
you are planning to mount it.
Mark the holes on the transom,
or mounting plate, so that
when the bottom of the
transducer is flush with the
bottom of the boat the holes are
located at the bottom of the
bracket slots. This gives you
room to "fine tune" the position
of the transducer and optimize
your reading after you've put
the boat in the water. Ideally,
the transducer should be just
under the bottom of the boat.
However, you may need to
lower it 1/2” to 5/8” to get a clear reading at top speed.
Drill out the holes and tighten the bracket to the hull
securely. Be sure to seal any holes drilled into the transom
with silicone to prevent water from leaking into the boat.
Give the transducer a slight tilt downward so that the back
is about 1/8” lower than the front. Tighten the bracket
screws and nuts securely. Run the transducer cord up to
the unit. Plug the transducer connector into the back of the
unit and screw the retaining ring down snugly.
7
Figure 7