Mercury 50

GENERAL INFORMATION
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a - Serial number
b - Model year
c - Model designation
d - Year manufactured
e - Certified Europe Insignia (as applicable)
40/50/60 4‑Stroke Specifications ‑ International
Models 40 50 60
Horsepower 40 50 60
Kilowatts 29.8 37.7 44.7
Full Throttle RPM Range 5500‑6000 RPM
Number of Cylinders 4
Idle Speed in Forward Gear Controlled by ECM
Piston Displacement 995 cc (60.8 cu. in.)
Cylinder Bore 65 mm (2.559 in.)
Stroke 75 mm (2.953 in.)
Valve Clearance (Cold)
Intake Valve 0.15‑0.25mm (0.006‑0.010 in.)
Exhaust Valve 0.25‑0.35mm (0.010‑0.014 in.)
Recommended Spark Plug Champion RA8HC
Spark Plug Gap 1.0mm (0.040 in.)
Gear Ratio
83mm (3‑1/4 in.) Diameter
Gearcase
1.83:1
108mm (4‑1/4 in.) Diameter
Gearcase
2.31:1 or 2.33:1
Recommended Gasoline Refer to Fuel & Oil