INSTALLATION AND PREDELIVERY
TRANSOM MEASURING AND DRILLING
Use this procedure
to
determine whether or not
the boat's transom height
is
correct for the out-
board's shaft length:
Lift the outboard using the lift grips
(NOT the tilt
grip or steering handle)
and
place
it
in
the center
of the boat's transom.
1
9.9/15 Model
1. Lift grip
TYPICAL
1. Lift grips
DR31712
1
DR16886
If
equipped, tighten clamp screws
by
hand, NOT
with tools, and adjust the outboard angle so the
antiventilation plate
is
parallel with the boat bot-
tom. Refer to the Operator's Guide.
38
The resulting position of
the
antiventilation plate
must
be
no higher than the boat's bottom and no
lower than 2
in.
(5.1
cm)
below
it.
If
the resulting position of the antiventilation plate
is
above or below the 0
to
2
in.
(0
to
5.1
cm)
range, the engine shaft length must be changed
or the boat's transom must
be
modified.
If
you
install
and
operate the outboard:
• Lower than recommended - Serious power-
head damage could result
from
water entry into
the lower engine cover or overloading from
an
under-revving propeller at wide open throttle.
• Higher than recommended - Serious power-
head damage could result from inadequate
cooling or
an
over-revving propeller. Propeller
ventilation (slippage) often occurs, resulting
in
poor boat performance.
IMPORTANT:
On
a specialty hull, non-planing
hull, or
on
a boat with a curved transom, these
guidelines might not apply. Contact the boat man-
ufacturer for additional installation information.
Transom Drilling
Center the outboard
on
the boat's transom (or
mounting bracket) and tighten the clamp screws
by
hand.
Use
the stern brackets as a template for location
and
size of holes to drill
in
the transom.
The stern bracket assembly has mounting holes
on
each side of the outboard. Drill one hole for
each side. Drill holes perpendicular to transom
surface. Use the upper holes unless your situation
requires using the lower holes (25/30 models).
E
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