Mercury 40 4-Stroke - Recording Serial Number; 40 4-Stroke Specifications

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GENERAL INFORMATION

Recording Serial Number

It is important to record this number for future reference. The serial number is located on the outboard

as shown.

OTXXXXXX

XXXX

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 - Recording Serial Number; 40 4-Stroke Specifications - International