Mercury 4-STROKE User Manual

OIL CHANGING PROCEDURE
1. Lock the outboard in the full tilt up position.
2. Position the outboard so the drain hole is facing downward.
3. Remove the drain plug and drain the engine oil into an appropriate
container.
IMPORTANT: Do not use a crankcase oil pump when changing the oil or
engine damage may occur.
4. After the initial oil has been drained, temporarily install the drain plug.
Disengage the tilt lock and lower the outboard. Wait a minute to allow the
remaining oil that was trapped in the engine to return to the drain. Return
the outboard to the full tilt position and drain the remaining oil.
5. Lubricate the seal on the drain plug with oil and reinstall.
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OIL FILLING
IMPORTANT: Do not overfill. Be sure that the outboard is upright (not tilted)
when checking oil.
1. Remove the oil fill cap and refill with 800 ml (27.0 fl. oz.) of oil. Install the
oil fill cap.
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2. Idle engine for five minutes and check for leaks. Stop the engine and
check the oil level on the dipstick. Add oil if necessary.
MAINTENANCE
90 eng

Mercury 4-STROKE Specifications

General

Engine Type	4-Stroke
Fuel Type	Gasoline
Cooling System	Water-cooled
Ignition System	CDI (Capacitor Discharge Ignition)
Starting	Manual / Electric
Shaft Length	15", 20", 25"
Max Power	Varies by model
Full Throttle RPM Range	Varies by model
Fuel Induction System	EFI / Carbureted
Steering	Remote / Tiller
Weight	Varies by model
Fuel Tank Capacity	Varies by model, some models include external tank
Oil Capacity	Varies by model