Mercury 80 User Manual

5. Clean the oil filter mounting base. Apply a film of clean oil to the filter
gasket. Do not use grease. Screw new filter on until gasket contacts base,
then tighten 3/4 to 1 turn.
a - Loosen
b - Oil filter
c - Oil trough
d - Drain hose
OIL FILLING
1. Remove the oil fill cap and add approximately 5.2 liter (5.5 US qt) of the
recommended oil. This will bring the oil level within the midpoint of the
operating range.
2. Idle engine for five minutes and check for leaks. Stop the engine. For an
accurate oil level reading, allow the engine to cool for at least an hour
before checking the oil level. Refer to Fuel and Oil ‑ Checking and
Adding Engine Oil.
NOTE: Checking the oil level within five minutes of engine shutdown can falsely
read up to 1 liter (1 US qt) low. Allow the engine to cool for at least an hour
before checking the oil level.
53755
a
b
c
d
53792
MAINTENANCE
eng 85

Mercury 80 Specifications

General

Steering	Remote
Shaft Length	20 in (508 mm)
Gear Ratio	2.07:1
Horsepower	80 hp
Full Throttle RPM Range	5000-6000 RPM
Bore x Stroke	3.15 x 3.15 in (80 x 80 mm)