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YAMAHA MARINE
HOT SHEET
EFFECTIVE NOVEMBER 1, 2009
F70
Mid-Range
Yamaha proudly announces a new addition to its mid-range four stroke stable; the F70. Using advanced features and
technology to make it extremely light yet very powerful, it is the ideal outboard for a myriad of lightweight fi shing boats
and an outstanding alternative to Yamaha’s soon-to-be-retired 90hp two stroke (effective 12-31-2009).
Featuring the lightest weight and highest horsepower-per-liter-of-displacement in the 70hp class, the Yamaha F70
takes advantage of the leading edge of technology while maintaining the fuel-effi cient, smooth, and quiet operation
Yamaha four strokes are known for. And it has benefi ts like Yamaha’s available Multifunction Tiller Handle or our
Command Link® System, which let you harness its Variable Trolling RPM capability.
The new Yamaha F70. Big-league technology in a very light weight,
fuel effi cient outboard.
Best-in-Class Horsepower-per-Liter – advanced 16-valve, single
overhead camshaft (SOHC), in-line 4 cylinder engine design.
Lightest Weight In Class – at 260 pounds, it’s lighter than all four stroke
and two stroke outboards of similar horsepower.*
Remarkably Responsive – a single throttle valve works in concert
with a tuned, long track intake system and high-ratio gearcase.
Outstanding Fuel Effi ciency – Yamaha’s Multi-point Electronic Fuel
Injection System and dependable ECM microcomputer engine control.
Proven Reliability – designed, built, and extensively tested to Yamaha’s
stringent standards for reliability.
Smooth, Dependable Mechanical Shifting and Throttle – works with all
Yamaha binnacle and most side-mount mechanical control boxes.
Operator Convenience –compatible with conventional analog or optional
Command Link gauges, for even more up-to-the-instant information.
Quiet, Smooth Operation – Yamaha’s labyrinth exhaust and Long-Span
Mounting System combines with a stylish yet functional exterior.
Ease of Service and Lasting Value – computerized Yamaha Diagnostic
System (YDIS), Ultimate Corrosion Protection System, and water-draining
air intake cowling.
Peace of Mind – advanced engine warning and protection system and
standard three year pleasure or government limited warranty.
* Published weight
Consult appropriate Yamaha rigging information and Yamaha Rigging Sheet (YMBS) for complete rigging
compatibility information and requirements for particular confi gurations. All rigging items sold separately.
Revised 12/18/09
AVAILABLE MODEL: F70LA
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F70
Four Stroke
FEATURES
F250 SPECIFICATIONS
MODEL CODE CHART
F 70 L A
Fuel Induction Horsepower Shaft Starting Method Control Generation
Length PTT Method
F = Four Stroke S = 15" Blank = PTT & E start Blank = Remote A = 1st change on motor
L = 20” P = PT & E start
X = 25” E = Electric Start
U = 30” M = Manual Start
J = Jet
Control
H = Tiller Handle
C = Command Link
Control
B = 2nd change on motor
C = 3rd change on motor
Etc.
DIMENSIONS
RIGGING OPTIONS
GAUGES
• Command Link® Compatible
• Yamaha Multifunction Compatible
• Analog Compatible
• External NMEA-2000® Display Compatible
• Command Link Plus Not Compatible
CONTROLS
• Mechanical (Cable) Compatible
• Multifunction Tiller Handle Compatible
• Command Link Plus Digital Not Compatible
Electronic Controls
• Command Link Digital Not Compatible
Electronic Controls
Overall length . . . A 713 mm (28.1 inches)
Overall width . . . B 386 mm (15.2 inches)
Overall height . . . C 1476 mm (58.1 inches)
Engine transom height . . . D 534 mm (21 inches)
Steering angle . . . E 40 deg. each direction
KEY SWITCHES AND LANYARDS
• Command Link Compatible
• Conventional Compatible
• Command Link Plus Not Compatible
MISCELLANEOUS
• Command Link Gateway Compatible
• Analog Gauge Interface Compatible
• Command Link Triducer® Compatible
• Y-COP™ (Immobilizer) Compatible
• Variable Trolling RPM Compatible
Consult appropriate Yamaha rigging information and Yamaha Rigging Sheet (YMBS) for complete rigging compatibility and requirements
information for particular confi gurations. All rigging items sold separately.
Revised 12/18/09
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F70
Four Stroke
FEATURES
F250 SPECIFICATIONS
Revised 12/18/09
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F70
Four Stroke
POWER AND PERFORMANCE
F250 SPECIFICATIONS
HORSEPOWER-PER-LITER
HORSEPOWER-PER-LITER* COMPARISON
FOUR STROKE
Yamaha F70
Suzuki® DF70
Mercury® 75
TWO STROKE
Yamaha F70
Evinrude® E-TEC™ 75
Mercury® Optimax® 75
An advanced powerhead design features a single overhead camshaft (SOHC), yet with four valves per cylinder, for maximum
power and effi ciency. Total intake valve area is increased 17%, while the pistons and valves are up to 10% lighter (when
compared to our T60 model), giving it substantially more horsepower-per-liter of engine displacement than competitive
outboards, both four stroke and two stroke direct-injected.
*Of engine displacement, rounded to nearest liter and horsepower
47
44
58
50
70
70
LIGHTEST WEIGHT IN CLASS
WEIGHT COMPARISON**
FOUR STROKE
Yamaha F70
Suzuki® DF70
Mercury
TWO STROKE
Yamaha F70
Evinrude® E-TEC™ 75
Mercury® Optimax® 75
From the specially designed engine block to the two-piece upper case, every ounce of weight-savings has been realized for
maximum performance without sacrifi cing durability. Yamaha’s new F70 is not only the lightest four stroke 70 horsepower
outboard, it’s even lighter than competitive two stroke direct-injected outboards.
®
75
260 LBS
341 LBS
399 LBS
260 LBS
320 LBS
375 LBS
**Published weight
Revised 12/18/09
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F70
Four Stroke
POWER AND PERFORMANCE
F250 SPECIFICATIONS
PRECISE THROTTLE CONTROL
All air entering the engine block of Yamaha’s new F70 four
stroke is routed through a single throttle valve, to ensure
the precise amount of air necessary for optimum power
and fuel effi ciency. It then enters each cylinder through
individual long intake tracks, which are ‘pulse tuned’ to
provide air at the precise volume and timing for maximum
density and power.
MAXIMUM POWER AND EFFICIENCY
Four individual compact electronic fuel injectors
deliver the exact amount of fuel needed for optimum
performance and economy. Controlled by the Engine
Control Module via input from an array of on-engine
sensors, their location just above the intake valves
enhances fuel atomization, resulting in more effi cient
combustion.
HOLE SHOT AND ACCELERATION
Yamaha’s F70 provides outstanding hole shot and
acceleration thanks in part to an advanced sensor that
allows maximum safe ignition timing and a gearcase
featuring a high 2.33:1 gear ratio, with specially hardened
pinion, forward, and reverse gears for increased durability.
MORE POWER, CLEANER EMISSIONS
The F70 derives every bit of power available from the fuel
by using Vapor Reduction and Vapor Burning Systems. By
eliminating vapor from the fuel rail and re-routing it back
to the Vapor Separator Tank, only fuel is injected in the
cylinders for better combustion and power. A fuel vapor
valve prevents fuel vapors from escaping to the
atmosphere when the outboard is not running, and
re-routes fuel vapors through the intake when the
outboard is running. This helps achieve maximum fuel
effi ciency and minimum emissions.
Revised 12/18/09
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F70
Four Stroke
RELIABILITY AND DURABILITY
F250 SPECIFICATIONS
PROTECTION FROM THE ELEMENTS
The new F70 features a new outer cowling design with
an intake air drain system, to easily and effi ciently drain
away any water that enters the cowling during normal
engine operation. Incoming air is routed through a
labyrinth of passages that help trap and drain water before
it enters the engine’s intake, for maximum reliability.
QUIET, YET STRONG
Yamaha’s F70 four stroke outboard utilizes a Long Span
Mounting System, which uses large specially-constructed
rubber engine mounts placed as far apart vertically and
horizontally as practically possible. Smooth and quiet
operation, yet with strength and durability, is the result.
LARGE WATER SEPARATOR
All new F70 outboards feature a large, on-engine water
separating fuel fi lter with a water sensor. Used in conjunction with Yamaha’s optional boat-mounted 10-Micron
Water Separating Fuel Filter, it helps separate water and
contaminants from the fuel before they can reach the
outboard’s other fi lters and fuel injectors.
DRYER OPERATION
Yamaha’s large anti-splash plate, standard on F70 models,
helps keep water from splashing up between the leading
edge of the outboard and the boat, resulting in a much
dryer ride. Located on the front of the lower mid-section
just above the lower unit, it excels in applications where
the outboard is normally run deep in the water, such as
pontoon boats.
Revised 12/18/09
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F70
Four Stroke
CONVENIENCE AND CONTROL
F250 SPECIFICATIONS
PRECISE TROLLING CONTROL
By just pressing a button on the Command Link® tachometer
or the VTS™ switch on the optional Multifunction Tiller
Handle, the operator can adjust the engine’s trolling speed
from 620 ~ 900 rpm in 50-rpm increments. This helps
provide precise and consistent trolling speeds in wide array
of conditions.
MORE INFORMATION
Optional Command Link gauges offer a wealth of information to the operator in order to help provide effi cient and
effective operation. Available in square or round style to fi t
a wide range of tastes and applications.
TILLER HANDLE CONVENIENCE
Yamaha’s award-winning optional Multifunction Tiller
Handle offers the benefi ts demanded most in a tiller
control. From its front-mounted gear shift and ignition
key switch controls, to the easy-to-use Variable Trolling
RPM Switch, it’s ergonomically-designed to provide
maximum control with maximum comfort.
SMOOTH AND QUIET
Engine exhaust is routed through a maze before exiting
above the waterline through the idle exhaust relief outlet
for unbelievably smooth and quiet operation.
Revised 12/18/09
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F70
Four Stroke
SPECIFICATIONS
F250 SPECIFICATIONS
ENGINE
Type 16-Valve, SOHC In-Line Four Cylinder
Displacement 996cc (60.8 ci)
Bore x Stroke 65 x 75mm (2.56 x 2.95 in)
Full Throttle RPM Range 5300 ~ 6300
Horsepower Rating 70hp at 5800 rpm
at Propshaft
Compression Ratio 9.4:1
Fuel Induction/Scavenging EFI/SOHC/4 Valves Per Cylinder
Alternator Output
17 Amp
Starting Method Electric w/ PTT
See Model Code
Ignition TCI Microcomputer
Lubrication Wet Sump
Degree of Trim -4° through +16°
Degree of Tilt 65°
Exhaust Through Propeller
Cooling Water/Thermostatic Control
DRIVE
Gear Shift Forward, Neutral, Reverse
Gear Ratio 12:28 (2.33)
SHAFT LENGTH
See Model Code L = 20”
FEATURES
POWER/PERFORMANCE
• Lightweight SOHC, 16-Valve Design
• Powerful 4 Cylinder 60.8 cu in.
• Multi-Point Precision Fuel Injection
• Long Track Induction System
• Blow-By Gas Reburning System
• Fuel Vapor Burning System
• California C.A.R.B. Ultra Low Emissions 3 Star Rating
•
Meets all current Federal EPA Emission Standards
RELIABILITY/DURABILITY
• Single Throttle Valve
• TCI Microcomputer
• Sacrifi cial Anodes
• YDC 30 Aluminum Alloy
• ACP 221 Paint Process
• Electro-deposited Powerhead Paint Process
• Engine Warning System
• Wet Sump Lubrication
• High Output Alternator
• On-Engine Fuel/Water Separating Filter
• Water Draining Air Intake Duct
• Engine Warning System
• SST Drive, Prop, Shift Shafts
• Magnetic Drain Plug
FUEL AND LUBRICATION
Recommended Fuel Regular Unleaded
(Minimum Pump Octane 87)
Recommended Fuel Yamaha 10-Micron Fuel/Water
Filtration Separating Filter (external)
Ethanol Blend Limit 10% Maximum
Recommended Oil Yamalube® 4M
(See owner’s manual)
Engine Oil Capacity 2.1L (2.2 qt) with fi lter
WEIGHT
F70LA (Estimated) 118kg (260 lbs)
CONVENIENCE/CONTROL
• Command Link System
• Power Trim & Tilt
• Freshwater Flush
• External Tilt Switch
• Spin On Oil Filter
• Long Span Mounting System
• Labyrinth Exhaust
• Yamaha Diagnostic System
LIMITED WARRANTY
Pleasure Three Years
Government Three Years
Commercial One Year
This document contains many of Yamaha’s valuable trademarks. It may also contain trademarks belonging to other companies. Any references to other companies or their products
are for identifi cation purposes only, and are not intended to be an endorsement.
Due to Yamaha’s ongoing commitment to product improvement, we reserve the right to change without notice, equipment, materials, or specifi cations.
The information and data contained herein is approximate and subject to many factors and variables, including but not limited to atmospheric, water, and equipment conditions, and
operator ability. Therefore, such information and data is provided as a guideline only.
Consult appropriate Yamaha rigging information and Yamaha Rigging Sheet (YMBS) for complete rigging
compatibility and requirements information for particular confi gurations. All rigging items sold separately.
© 2009 Yamaha Motor Corporation. U.S.A. All rights reserved.
Primary ID Prefi x: 6CJ
(Optional)
Revised 12/18/09
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