Mercury 8.1S Horizon, Product Applications Manual

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Manual Introduction and Overview
This Product Applications Manual has been written and published by Mercury Marine and
is targeted to the boat manufacturer's engineers and designers. It is intended to aid you,
the boat manufacturer, in the proper integration of our power packages in your boats.
Proper integration is critical to extract the full potential from your boat and engine packages
and to deliver our mutual customers the reliability, durability, and performance that exceed
their expectations.
The manual includes important information, recommendations, and requirements for
designing your boats and setting up your assembly process to optimize the installation of
our products. Laid out by system (i.e. fuel system, exhaust system), the manual allows the
user to quickly locate important information about the systems that comprise the power
package installation. It is not intended to replace the installation manuals (provided with
the engines), which cover step-by-step installation procedures for the power package
hardware. Your installers should still use the installation manuals when installing the power
packages to ensure that no steps are missed and all cautions and warnings are understood.
We cannot anticipate all conceivable installations and their possible hazards or results.
Therefore, any manufacturer or person who applies or installs the product in a manner that
does not fulfill the requirements listed herein must first be completely satisfied that neither
their safety nor the product will be endangered by the application or installation procedure
selected.
The boat manufacturer or installing dealer is responsible for selecting the appropriate
power package (including correct gear ratio and propeller) for a given boat. Making an
appropriate selection requires knowledge of the boat (weight, length, hull design, intended
use and duty cycle, desired speed, etc.) that is uniquely in the possession of the boat
manufacturer or installing dealer. While Mercury employs people capable of assisting on
such issues, the final decision on the application of the product rests with the boat
manufacturer or installing dealer. Mercury recommends that any new or modified hull–
power package combination be thoroughly tested prior to sale to verify that the boat
performs as desired, handles safely, and that the engine runs in the specified RPM range.
All information, illustrations, and specifications contained in this manual are based on the
latest product information available at the time of publication. Mercury MerCruiser reserves
the right to make changes at any time without obligation. As required, revisions to this
manual will be made available. Any suggested improvements to this manual are welcome
and should be directed to:
Mercury MerCruiser, Technical Communication Department
3003 N. Perkins Road,
Stillwater, OK 74075
405-377-1200
Fax 405-743-6537
Safety Alerts and Notices
Throughout this publication, "Warnings" and "Cautions," accompanied by the international
HAZARD symbol
!
, are used to alert the technician to special instructions concerning
a particular service or operation that may be hazardous if performed incorrectly or
carelessly. Observe these safety alerts carefully.
These safety alerts alone can not eliminate the hazards they signal. Strict compliance to
these special instructions when performing the service, and common sense operation are
major accident prevention measures.