Mercury 4 FourStroke User Manual

eng i
Thank You
for your purchase of one of the finest outboards available.
You have made a sound investment in boating pleasure.
Your outboard has been manufactured by Mercury Marine, a
world leader in marine technology and outboard
manufacturing since 1939. These years of experience have
been committed to the goal of producing the finest quality
products. This led to Mercury Marine's reputation for strict
quality control, excellence, durability, lasting performance,
and being the best at providing after the sale support.
Please read this manual carefully before operating your
outboard. This manual has been prepared to assist you in
the operation, safe use, and care of your outboard.
All of us at Mercury Marine took pride in building your
outboard and wish you many years of happy and safe
boating.
Again, thank you for your confidence in Mercury Marine.
EPA Emissions Regulations
Outboards sold by Mercury Marine in the United States are
certified to the United States Environmental Protection
Agency as conforming to the requirements of the regulations
for the control of air pollution from new outboard motors.
This certification is contingent on certain adjustments being
set to factory standards. For this reason, the factory
procedure for servicing the product must be strictly followed
and, wherever practicable, returned to the original intent of
the design. Maintenance, replacement, or repair of the
emission control devices and systems may be
performed by any marine engine repair establishment or
individual.
Engines are labeled with an Emission Control Information
decal as permanent evidence of EPA certification.
!
WARNING
The engine exhaust from this product contains chemicals
known to the state of California to cause cancer, birth
defects or other reproductive harm.
© 2012 Mercury Marine 4/5/6 FourStroke 90-8M0055686 211

Mercury 4 FourStroke Specifications

General

Engine Type	4-Stroke
Number of Cylinders	4
Displacement	2.1 L (2096 cc)
Weight	205 kg (452 lbs)
Cylinders	4
Starting	Electric
Full throttle RPM	5000-6000 RPM
Cooling System	Water-cooled
Steering	Hydraulic

Summary

WARRANTY INFORMATION

FourStroke Outboard Limited Warranty

Details of coverage, duration, and conditions for the limited warranty.

Warranty Coverage and Exclusions

Explanation of what is covered and not covered by warranty.

GENERAL INFORMATION

Boater's Responsibilities

Lanyard Stop Switch

Explanation of the lanyard stop switch function and safety.

Protecting People in the Water

Safety precautions to protect swimmers and people in the water.

FUEL AND OIL

Fuel Recommendations

Guidance on selecting and using the correct type of gasoline.

Engine Oil Recommendations

Guidance on selecting the appropriate engine oil for the outboard.

Checking Engine Oil

FEATURES AND CONTROLS

OPERATION

Prestarting Check List

Essential checks to perform before starting the engine.

Engine Break-in Procedure

Steps for properly breaking in the new outboard engine.

Starting the Engine

Detailed steps for starting the outboard engine.

MAINTENANCE

Inspection and Maintenance Schedule

Routine checks and maintenance tasks.

Flushing the Cooling System

Propeller Replacement

Step-by-step guide for removing and installing a propeller.

Spark Plug Inspection and Replacement

Changing Engine Oil

Procedure for draining and refilling the engine oil.

Gearcase Lubrication

Instructions for checking, draining, and refilling gearcase lubricant.