EMISSIONS
Page 3C-8 90-828631R3 MARCH 1999
CERTIFICATION 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 certifica-
tion label and is not representative of any one model. Label shown below is not to scale;
(shown at twice the normal size).
JAN FEB MAR APR MAY JUNE JULY AUG SEP OCT NOV DEC
Emission Control
Information
1999
PART # 37-856985 23
This engine conforms to 1998 Model Year
U.S. EPA regulations for marine SI engines.
Idle Speed (in gear): XXX RPM
Timing: XXXX
Standard Spark Plug: NGK DPR6EA-9
Gap: .035″
Valve Clearance (Cold) mm
Intake: XXXX Exhaust: XXXX
Refer to Owners Manual
for required maintenance.
Family: WM9XM.935220
FEL: 32.20 GM/KW-HR
935
cc
40-50 HP
4-Stroke
e
b
a
k
j
i
d
f
g
h
c
a - Spark Ignition (SI)
b - Cubic Centimeter
c - Model year of engine and production decal part number
d - Idle Speed (In Gear)
e - Timing specifications when adjustable
f - Recommended spark plug for best engine performance
g - Valve Clearance (Four Stroke engines only)
h - Engine Horsepower rating
i - Month of production (Boxing month will punched)
j - FEL: Represents (Mercury Marine) statement of the maximum emissions output
for the engine family
k - Family example
W M9X M. 747 2 2 0
Model Year
W=1998
X=1999
Manufacturer
Mercury Marine
Regulation
M=Marine
Displacement
Liter
Cubic Inch
Application
1=PWC
2=OB
Technology type
1=Existing
2=New
Unspecified
Decal Location for 1999 Models:
Model Production Part No. Service Part No. Location on Engine
1998 Merc/Mar 935 cc 37-855211-25
37-855577-25 (1998 Carb with
non-adjustable pilot screw)
Inside Top Cowl
1998 Merc/Mar 935 cc 37-855211-39
37-855577-39 (1998 Carb with
adjustable pilot screw)
Inside Top Cowl
1999 Merc/Mar 935 cc 37-856984 23 37-856985 22 Flywheel/Rewind Cover
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