Yamaha F40LEHA User Manual

F40A
Performance. Reliability. Convenience and control. Long-term value.
These are the benefi ts you look for in a mid-range four stroke outboard. At Yamaha, we’re
constantly striving to provide all of these, and more, in every outboard we make. Continuing
this innovative tradition, Yamaha is proud to announce a new member to the Yamaha
outboard family, the F40A.
AVAILABLE
MODELS:
F40LEHA
(F40ELH)**
F40LA
(F40TLR)**
F40JEHA
(F40EJH)**
F40JEA
(F40EJR)**
** See page 7
for explanation
of new model
codes
PERFORMANCE
This new four stroke is a true outboard; engineered, designed, and developed specifi cally
for the marine environment. It’s three-cylinder, single overhead camshaft design means
powerful performance in a compact package, and that performance is available in both
propeller and jet-driven models to effectively power a myriad of applications and
designs. With a newly-designed single throttle valve, a long intake track manifold,
and an Electronic Control Module these engines feature easy starting, fast
acceleration, and excellent top-end speed while still delivering the
outstanding fuel-effi ciency Yamaha outboards are known for.
RELIABILITY
Yamaha’s proven 40hp four-stroke outboard design now comes with the
addition of electronic multi-point fuel injection for easy, turn-key starting.
A large, on-engine water-separating fuel fi lter further adds to its long-term
reliability approach, as does an integral engine monitoring and warning
system and Yamaha’s renowned Ultimate Corrosion Protection System.
These features help provide the peace of mind that comes standard with
every Yamaha outboard.
CONVENIENCE AND CONTROL
Yamaha’s F40A has met the digital age. Optional Command Link
®
gauges
can now be rigged to this versatile engine. Even Yamaha’s exclusive Variable
Trolling RPM Switch (VTS™) is standard on Command Link or Multifunction
Tiller Handle-equipped models. The benefi t? Ultimate convenience, expansive
available information, great control; all in a compact, easy-to-own-and-operate
package.
VALUE
Enhanced reliability. Exceptionally smooth and quiet operation. Outstanding
fuel effi ciency. Maximum performance and convenience. All combine to make
the new Yamaha F40A an incredibly powerful and versatile value, both now
and in the years ahead.
HOT SHEET
YAMAHA MARINE
Effective
July 1, 2008
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Yamaha F40LEHA Specifications

General

Displacement	747 cc
Max Output	40 hp at 5500 rpm
Full Throttle RPM Range	5000-6000 RPM
Cooling System	Water-cooled
Starting System	Electric
Steering	Remote
Gear Shift	Forward, Neutral, Reverse
Engine Type	4-stroke
Fuel System	EFI
Shaft Length	20 in
Fuel Tank Capacity	External tank required

Summary

F40A Product Introduction and Benefits

Performance Benefits

Details the engineered, designed, and developed performance for marine environments.

Reliability Features

Highlights Yamaha's proven 40hp design with electronic fuel injection and corrosion protection.

Convenience and Control

Discusses digital age integration with optional Command Link gauges and VTS.

Value Proposition

Summarizes enhanced reliability, smooth operation, and fuel efficiency as key values.

Available Models

Lists the different model codes and variations for the F40A outboard.

F40A Key Features

Performance Features

Highlights features contributing to engine performance and power delivery.

Convenience Features

Lists features enhancing user experience and ease of operation.

Reliability and Durability Features

Covers aspects like engine design, control systems, and protection against wear.

Warning and Protection Systems

Details the integrated systems for monitoring engine health and preventing damage.

Ultimate Corrosion Protection

Explains Yamaha's comprehensive system for protecting the outboard from corrosion.

F40A Performance Details

Responsive Power

Explains the 6-valve SOHC design for precise valve timing and efficient gas exchange.

Precise Throttle Control

Details the single throttle valve and air silencer for smooth, quiet operation.

Fuel Efficiency

Describes electronic fuel injectors and ECM control for optimized fuel atomization.

Dependable Starting

Highlights the vapor-reducing fuel return system and EFI for reliable starts.

F40A Durability and Technology

Long Term Value

Focuses on Yamaha's Ultimate Corrosion Protection System and proprietary alloys.

Advanced Technology

Details the Engine Control Module (ECM) and Yamaha Diagnostic System interface.

Cleaner Fuel System

Explains the on-engine water separating fuel filter and its role in protecting injectors.

Protection from Elements

Describes the one-piece cowling and intake air drain system for reliability.

F40A Convenience and Control Details

Precise Trolling Control

Explains how to adjust trolling speed using Command Link tachometer or VTS switch.

Optional Tiller Handle Control

Highlights the ergonomically designed Multifunction Tiller Handle features.

More Information with Command Link

Discusses the wealth of information provided by optional Command Link gauges.

Smooth and Quiet Operation

Describes the exhaust routing through a maze for reduced noise and vibration.

F40A Model Code System

Model Code Changes Explained

Details the revision of model code designators for the new F40A engine.

Current vs. New Model Codes

Compares the old model code structure with the new, simplified F40A system.

F40A System Diagram

System Components

Illustrates the interconnections of ECM, sensors, fuel, and control systems.

F40A Specifications

Engine Specifications

Provides detailed technical data including displacement, bore, stroke, and RPM.

Performance Specifications

Lists horsepower, compression ratio, fuel induction, and alternator output.

Control and Operation Specs

Details starting method, ignition, lubrication, trim/tilt, and cooling.

Maintenance and Warranty

Includes gear ratio, recommended fuel/oil, oil capacity, and limited warranty.