
Emissions
Page 3B-4
90-8M0065421 NOVEMBER 2012
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
Manufacturer's Certificate Label
The certification label must be placed on each engine at the time of manufacture and must be replaced in the same location if
damaged or removed. Shown below is a typical certification label and is not representative of any one model. Label shown
below is not to scale.
a -
Idle speed
b -
Engine horsepower
c -
Piston displacement
d -
Date of manufacture
e -
Valve clearance (if applicable)
f -
Family number
g -
Maximum emissions output for the engine family
h -
Timing specifications
i -
Recommended spark plug and gap
Family Number
The following is an illustration of a typical family number and is not a representation of any one model.
1 -
Model year (3 = 2003)
2 -
Manufacturer (Mercury Marine)
3 -
Regulations (M = Marine)
4 -
Engine displacement (decimal point = liters
[03.4 = 3.4L]), (no decimal point = C.I. [0113 =
113 cubic inches])
5 -
Technology type (1 = OB old tech, 2 = OB
new tech, 3 = SportJet, 4 = OptiJet)
6 -
Engine class (C = two‑stroke, G = four‑stroke)
7 -
Product type (0 = all except, J = SportJet, E =
EFI SportJet and 4‑Strokes, 3 = OptiMax, H =
high performance)
Service Replacement Certification Label
IMPORTANT: By federal law, it is required that all 1998 and newer Mercury Marine outboards have a visible and legible
emission certification label. If this label is missing or damaged, contact Mercury Marine Service for a replacement.
Removal
Remove all remaining pieces of the damaged or illegible label. Do not install new label over the old label. Use a suitable solvent
to remove any traces of the old label adhesive from the display location.
SPARK PLUG:
GAP:
EMISSION CONTROL
INFORMATION
THIS ENGINE CONFORMS TO
EMISSION REGULATIONS FOR SPARK IGNITION MARINE ENGINES
CALIFORNIA AND U.S. EPA
REFER TO OWNERS MANUAL FOR REQUIRED MAINTENANCE,
SPECIFICATIONS, AND ADJUSTMENTS
IDLE SPEED (in gear):
FAMILY:
FEL:
TIMING (IN DEGREES):
COLD VALVE
CLEARANCE (mm)
INTAKE:
EXHAUST:
g/kWh
hp
cc
21096
e
d
c
b
a
f
g
h
i
3 M9X M 03.4 2 G 0
1
2
3
4
5
6
7
21088
Summary of Contents for FourStroke 2.5
Page 5: ...Page iv...
Page 13: ...Master Specifications Notes Page 1A 8 90 8M0065421 NOVEMBER 2012...
Page 25: ...Maintenance Notes Page 1B 12 90 8M0065421 NOVEMBER 2012...
Page 44: ...Ignition Notes 90 8M0065421 NOVEMBER 2012 Page 2A 3...
Page 56: ...Carburetor and Fuel Pump Notes 90 8M0065421 NOVEMBER 2012 Page 3A 3...
Page 81: ...Emissions Notes Page 3B 6 90 8M0065421 NOVEMBER 2012...
Page 128: ...Clamp Swivel Bracket and Driveshaft Housing Notes 90 8M0065421 NOVEMBER 2012 Page 5A 3...
Page 173: ...Gear Housing Notes Page 6A 32 90 8M0065421 NOVEMBER 2012...
Page 176: ...Shift Linkage Notes 90 8M0065421 NOVEMBER 2012 Page 7A 3...
Page 184: ...Tiller Handle Notes 90 8M0065421 NOVEMBER 2012 Page 7B 3...
Page 196: ...Recoil Starter Notes 90 8M0065421 NOVEMBER 2012 Page 8A 3...