Mercury 40 4-Stroke User Manual

MAINTENANCE
60
2. Turn the the outboard so the drain hole is facing downward. Remove the drain plug and drain the
engine oil into an appropriate container. Lubricate the seal on the drain plug with oil and reinstall.
a
b
28531
a - Drain plug b - Drain hole
CHANGING OIL FILTER
1. Place a rag or towel below the oil filter to absorb any spilled oil.
2. Unscrew the old filter by turning the filter to the left.
3. Clean the mounting base. Apply a film of clean oil to the filter gasket. Do not use grease. Screw
the new filter on until the gasket contacts the base, then tighten 3/4 to 1 turn.
28417
OIL FILLING
1. Remove the oil fill cap and add oil to the proper operating level.
2. Idle the engine for five minutes and check for leaks. Stop the engine and check the oil level on
the dipstick. Add oil if necessary.
a
28418
a -
Oil fill cap

Mercury 40 4-Stroke Specifications

General

Engine Type	4-Stroke
Horsepower	40 hp
Cylinders	3
Fuel Induction System	Electronic Fuel Injection (EFI)
Starting	Electric
Displacement	747 cc
Shaft Length	20 in
Dry Weight	216 lbs
Steering	Remote
Alternator Amp	18 amp / 226 watt
Full Throttle RPM	5500 - 6000 RPM