Mercury Optimax 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.
Declaration of Conformity ‑ Optimax
Manufacturer:
Mercury Marine
W6250 Pioneer Road P.O. Box 1939
Fond du Lac, WI 54935-1939 USA ,
Authorized Representative:
Marine Power Europe, Inc.
Parc Industriel de Petit-Rechain
B-2800 Verviers - Belgium,
If the CE mark is accompanied by a notified body number, the
following Recreational Craft Directive applies:
Recreational Craft Directive: 2003/44/EC amending 94/25/EC
Applicable Requirement Standards Applied
Owner's manual (A.2.5) EN ISO 10240:2004
Handling characteristics (A.4) EN ISO 8665:1995
Outboard engines starting (A.5.1.4) EN ISO 11547:1995
General steering system (A.5.4.1) ABYC P‑17; EN ISO 10592:1995
Exhaust emission requirements (B.
2)
EN ISO 8178‑1: 1996
Owner's manual (B.4) EN ISO 8665:1995
Noise emission levels (C.1) EN ISO 14509:2000
Module used for exhaust emission assessment: Module H;
Certification No. RCD‑H‑2
© 2007 Mercury Marine 75/90/115 OptiMax 90-10208080 307

Mercury Optimax Specifications

General

Starting	Electric
Engine Type	2-Stroke
Fuel System	Direct Fuel Injection (DFI)
Displacement	Varies by model (e.g., 1.5L, 1.7L, 2.5L, 3.0L)
Shaft Length	20", 25"
Fuel Tank Capacity	External
Cylinders	Varies by model (e.g., 3, 4, 6 cylinders)

Summary

Warranty Information

Transfer Of Warranty

Procedure for transferring the limited warranty to a subsequent purchaser.

Warranty Coverage And Exclusions

Explanation of what is covered and not covered by the warranty.

General Information

Boat Horsepower Capacity

Warning about exceeding the boat's maximum horsepower rating.

Propeller Selection

Guidance on choosing the correct propeller for optimal performance and engine health.

Safe Boating Suggestions

Recommendations for safe boating practices and compliance with regulations.

Operation

Pre‑Starting Check List

Essential checks to perform before starting the engine for safe navigation.

Engine Break‑in Procedure

Step-by-step guide for the engine break-in period to ensure longevity.

Starting the Engine

Detailed instructions for properly starting the outboard engine.

Maintenance

Inspection and Maintenance Schedule

Schedule of routine inspections and maintenance tasks for the outboard.

Flushing the Cooling System

Procedure for flushing the cooling system with fresh water after use.

Propellers

Instructions for propeller removal and installation, including lubrication.

Outboard Installation

Determining Recommended Outboard Mounting Height

Guidelines for setting the correct outboard mounting height for optimal performance.

Fastening the Outboard to the Transom MOUNTING BOLTS

Details on outboard transom mounting hardware and bolt specifications.

Oil Injection Set‑Up

Procedure for filling and priming the oil injection system.