Mercury 5 4-Stroke User Manual

i
Welcome Aboard!
Proper care and maintenance is an important part in keeping your Mercury Product operating at peak
efficiency for maximum performance and economy. The enclosed Owner's Registration Card is your key
to trouble-free family fun. Refer to your Operation and Maintenance Manual for full details of your warranty
coverage.
Details of your nearest dealer can be found on www.marinepower.com where country maps and full
contact information are displayed.
Is your engine properly registered for warranty purpose? Please check on www.marinepower.com. If
necessary, please contact your local dealer.
If the outboard motor’s serial number plate contains the CE mark in the lower left-hand corner, the
following statement applies:
This outboard motor manufactured by Mercury Marine, Fond du Lac, WI, USA or Marine Power Europe
Inc. Park Industrel, de Petit-Rechain, Belgium complies with the requirements of the following directives
and standards, as amended:
Recreational Craft Directive: 94/25/EC; std. ISO 8665, ISO 11547
Machinery Directive: 98/37/EC,
EMC Directive: 89/336/EC; std. EN50081-1, SAE J551 (CISPR Pub. 12),
EN 50082-1, IEC 61000 PT4-2, IEC 61000 PT4-3
Patrick C. Mackey
President, Mercury Marine, Fond du Lac, WI USA
European Regulations Contact:
Product Environmental Engineering Department, Mercury Marine, Fond du Lac, WI USA
© 2004 Mercury Marine 4/5/6 4-Stroke 90-10211050 204

Mercury 5 4-Stroke Specifications

General

Engine Type	4-Stroke
Horsepower	5 HP
Cylinders	1
Starting	Manual
Fuel Type	Unleaded Gasoline (87 octane)
Full Throttle RPM Range	4500-5500 RPM
Fuel Induction System	Carburetor
Steering	Tiller
Gear Ratio	2.15:1
Gear Shift	F-N-R
Displacement	123 cc
Fuel Tank	1.1 L (External)
Shaft Length	Short / Long

Summary

General Information

Boater's Responsibilities

Operator's duty for safe boat operation and occupant safety.

Before Operating Your Outboard

Boat Horsepower Capacity

Warning about exceeding boat horsepower limits and its consequences.

Lanyard Stop Switch

Function and importance of the engine stop switch and lanyard.

Protecting People In The Water

Safety precautions for preventing injury to people in the water.

Safe Boating Suggestions

Installation

Installing Outboard

Steps for mounting the outboard motor onto the boat's transom.

Boat Transom Height Requirement

Installing Outboard On Transom

Fuel & Oil

Filling Fuel Tank

Engine Oil Recommendations

Checking Engine Oil

Procedure for checking the engine oil level and inspecting oil condition.

Features & Controls

Engine Stop Switch/Lanyard Stop Switch

How to use the stop switch and lanyard for engine shutdown.

Tilting Outboard

Shallow Water Operation

Engine Over-Speed Protection System

Operation

Pre-Starting Check List

Essential checks before starting the outboard engine.

Engine Break-in Procedure

Critical steps for breaking in the new outboard engine.

Starting The Engine

Step-by-step guide for starting the outboard engine.

Maintenance

Outboard Care

Inspection And Maintenance Schedule

Schedule of required inspections and maintenance tasks.

Flushing The Cooling System

Corrosion Control Anode

Fuel System

Propeller Replacement

Detailed steps for safely replacing the outboard's propeller.

Spark Plug Inspection And Replacement

Procedure for inspecting, gapping, and replacing spark plugs.

Lubrication Points

Changing Engine Oil

Procedure for draining and refilling the engine oil.

Storage

Storage Preparation

Procedures for preparing the outboard for long-term storage.

Owner Service Assistance

Local Repair Service

Service Assistance

Mercury Marine Service Offices