Mercury 100 FourStroke, Service Manual

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FUEL SYSTEM - 3D-5 90-830234R3 DECEMBER 1997
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 certification label and is not repre-
sentative of any one model. Label shown below is not
to scale; (shown at twice the normal size).
a
b
c
d
e
f
g
h
i
j
k
l
m
n
JAN FEB MAR APR MAY JUNE JULY AUG SEP OCT NOV DEC
Emission Control
Information 1998
This engine conforms to 1998 Model Year
U.S. EPA regulations for marine SI engines.
This engine is certified to operate on regular 87
octane unleaded fuel (R+M)/2
Refer to Owners Manual for required maintenance.
Exhaust Emission Control Systems: None
PART # 37–855211 11
1848
cc
Idle Speed (in gear): 675 RPM
Timing: Idle: 4
°
ATDC – 2
°
BTDC WOT:23
°
BTDC
Gap: 0.040 Spark Plug: CHAMPION QL77CC
125 HP
Fuel/Oil
Ratio: 50:1
Oil
Injection
Variable
Engine Lubricants: Quicksilver
Premium Plus TC-W3 2-Cycle
Outboard Oil
Family: WM9XM02.0210
FEL: 145.00 GM/KW-HR
Valve Clearance (Cold) mm
Intake: N/A Exhaust: N/A
a - Spark Ignition (SI)
b - Model year of engine and production decal part number
c - Type and octane of fuel used to establish emission levels
d - Timing specifications when adjustable
e - Spark plug gap in thousandths of an inch
f - Recommended spark plug for best engine performance
g - Engine Horsepower rating
h - Cubic Centimeter
i - Valve Clearance (Four Stroke engines only)
j - Recommended oil/fuel ratio for best engine performance
and minimal emissions
k - Month of production (Boxing month will punched)
l - FEL: Represents (Mercury Marine) statement of the maxi-
mum emissions output for the engine family
m - Family example:
W M9X M 112.8 2 1 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
n - Engine lubricants recommended by the manufacturer