3D-4 - FUEL SYSTEM 90-830234R3 DECEMBER 1997
Emissions Information
Manufacturer’s Responsibility:
Beginning with 1998 model year engines, manufac-
turers of all marine propulsion engines must deter-
mine the exhaust emission levels for each engine
horsepower family and certify these engines with the
United States Environmental Protection Agency
(EPA). A certification decal/emissions control in-
formation label, showing emission levels and engine
specifications directly related to emissions, must be
placed on each engine at the time of manufacture.
Dealer Responsibility:
When performing service on all 1998 and later out-
boards that carry a certification, attention must be
given to any adjustments that are made that affect
emission levels.
Adjustments must be kept within published factory
specifications.
Replacement or repair of any emission related com-
ponent must be executed in a manner that maintains
emission levels within the prescribed certification
standards.
Dealers are not to modify the engine in any manner
that would alter the horsepower or allow emission
levels to exceed their predetermined factory specifi-
cations.
Exceptions include manufacturers prescribed
changes, such as that for altitude adjustments.
Owner Responsibility:
The owner/operator is required to have engine main-
tenance performed to maintain emission levels within
prescribed certification standards.
The owner/operator is not to modify the engine in any
manner that would alter the horsepower or allow
emissions levels to exceed their predetermined fac-
tory specifications.
Exceptions:
• Carburetor jets may be changed for high altitude
use in accordance with factory recommenda-
tions.
• Single engine exceptions may be allowed with
permission from the EPA for racing and testing.
EPA Emission Regulations:
All new 1998 and later outboards manufactured by
Mercury Marine are certified to the United States En-
vironmental Protection Agency as conforming to the
requirements of the regulations for the control of air
pollution from new outboard motors. This certifica-
tion is contingent on certain adjustments being set to
factory standards. For this reason, the factory proce-
dure for servicing the product must be strictly fol-
lowed and, whenever practicable, returned to the
original intent of the design.
The responsibilities listed above are general and in
no way a complete listing of the rules and regulations
pertaining to the EPA laws on exhaust emissions for
marine products. For more detailed information on
this subject, you may contact the following locations:
VIA U.S. POSTAL SERVICE:
Office of Mobile Sources
Engine Programs and Compliance Division
Engine Compliance Programs Group (6403J)
401 M St. NW
Washington, DC 20460
VIA EXPRESS or COURIER MAIL:
Office of Mobile Sources
Engine Programs and Compliance Division
Engine Compliance Programs Group (6403J)
501 3rd St. NW
Washington, DC 20001
EPA INTERNET WEB SITE:
http:/www.epa.gov/omswww
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