Mercury 40 4-Stroke User Manual

GENERAL INFORMATION
17
Recording Serial Number
It is important to record this number for future reference. The serial number is located on the outboard
as shown.
XX
OTXXXXXX
XXXX
a
b
c
d
24125
a - Serial number
b - Model designation
c - Year manufactured
d - Certified Europe Insignia (as applicable)
40 4-Stroke Specifications - International
Models 40
Horsepower 40
Kilowatts 29.8
Full Throttle RPM Range 5500-6000 RPM
Idle Speed in Forward Gear
Carburetor Models 800 ± 25 RPM
EFI Models Controlled by ECM
Number of Cylinders 3
Piston Displacement 747 cc (45.6 cu. in.)
Cylinder Bore 65 mm (2.559 in.)
Stroke 75 mm (2.953 in.)
Valve Clearance (Cold)
Intake Valve 0.15-0.25 mm (0.006-0.010 in.)
Exhaust Valve 0.25-0.35 mm (0.010-0.014 in.)
Recommended Spark Plug
Carburetor Models NGK DPR6EA-9
Spark Plug Gap 0.9 mm (0.035 in.)
EFI Models Champion RA8HC
Spark Plug Gap 1.0 mm (0.040 in.)
Gear Ratio 2.00:1
Recommended Gasoline Refer to Fuel & Oil
Recommended Oil Refer to Fuel & Oil

Mercury 40 4-Stroke Specifications

General

Brand	Mercury
Model	40 4-Stroke
Category	Outboard Motor
Language	English