Mercury 80 User Manual

Specifications 75–115
NOTE: 80 and 100 HP are international models.
Models 75 80 90 100 115
Horsepower 75 80 90 100 115
Kilowatts 55.9 59.6 66.2 73.6 85.7
Full throttle
RPM range
4500–5500 5000–6000
Idle speed in
neutral gear
(engine at
operating
temperature)
700 RPM
Troll control
RPM range
(accessory)
550–1000
Number of
cylinders
4
Piston
displacement
2,061 cc (125.8 cid)
Cylinder bore 90 mm (3.54 in.)
Stroke 81 mm (3.19 in.)
Recommended
spark plug
NGK ZFR5F
Spark plug gap 0.8 mm (0.032 in.)
Spark plug hex
size
16 mm
Valve clearance
(cold)
Intake valve 0.050–0.102 mm (0.002–0.004 in.)
Exhaust valve 0.128–0.179 mm (0.005–0.007 in.)
Gear ratio
Standard 2.07:1
Command Thrust 2.38:1
Gearcase
lubricant
capacity
Standard 800 ml (27.1 fl oz)
Command Thrust
Right‑hand 810 ml (27.4 fl oz)
Left‑hand 790 ml (26.7 fl oz)
GENERAL INFORMATION
36 eng

Mercury 80 Specifications

General

Brand	Mercury
Model	80
Category	Outboard Motor
Language	English