Yamaha F6 User manual

You want power. You want performance. You want portability. You want Yamaha.
Introducing the all-new Yamaha F6 / F4 portable outboards.
Weighing in as light as 60 pounds, these new Yamaha portables mean you can have all the benefits you want and
need in a portable outboard. Truly compact, light weight, and easy-to-handle, these pint-sized protégés of our
larger outboards are feature-packed and offer the outstanding reliability you’ve come
to demand from Yamaha.
Available in both 15” and 20” models, they’re among the most fuel-efficient in their
class, and all models proudly feature a CARB 3-star rating for ultra-low emissions.
The new Yamaha F6 and F4 portables. Proof positive that
a little goes a long way.
Powerful Performance – OHV design with an advanced ignition system.
True Portability – light weight with built in carrying handles.
Fuel Efficiency – carbureted single-cylinder, with a standard built-in
fuel tank and optional external fuel tank compatibility for extended range.
Ultra-low Emissions – featuring a CARB 3-star rating.
Operator Convenience – advanced tiller handle features, Shallow Water Drive,
and aluminum propeller; standard.
Smooth and Quiet – optimally-balanced Yamaha four stroke design.
Easy Maintenance and Storage – featuring Yamaha’s new Easy Storage Oil
Retention System.
Lasting Value – Yamaha reliability with advanced features help protect your
investment for years of trouble-free enjoyment.
Peace of Mind – three-year pleasure or government limited warranty.
HOT SHEET
EFFECTIVE NOVEMBER 1, 2009
AVAILABLE MODELS: F6SMHA •F6LMHA •F4SMHA •F4LMHA
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F6 / F4
Portables
Revised 12/18/09

F250 SPECIFICATIONS
FEATURES
F6 / F4 Portables Four Stroke
LONG INTAKE MANIFOLD
F 6 S M H A
Fuel Induction Horsepower Shaft Length Starting Method Control Method Generation
PTT
F = Four Stroke S = 15" Blank = PTT & E start Blank = Remote Control A = 1st change on motor
L = 20” P = PT & E start H = Tiller Handle B = 2nd change on motor
X = 25” E = Electric Start C = Command Link Control C = 3rd change on motor
U = 30” M = Manual Start Etc.
J = Jet
MODEL CODE CHART (EXAMPLE)
Revised 12/18/09

F250 SPECIFICATIONS
PERFORMANCE, RELIABILITY, CONVENIENCE
F6 / F4 Portables Four Stroke
LIGHTWEIGHT, PORTABLE POWER
MAXIMUM EFFICIENCY
EASY OPERATION
RELIABLE LUBRICATION AND STORAGE
COMFORTABLE, CONVENIENT CONTROL
VERSATILE PERFORMANCE
Weighing in as light as 60 pounds, these 139cc OHV single
cylinder four stroke powerhouses offer a CDI ignition system,
optimally-balanced crankshaft, long span mounting system,
labyrinth exhaust and a host of other features for smooth,
quiet power. They even have built-in carrying handles for
true portability and convenience.
Yamaha’s new F4 and F6 both feature a pressurized oiling
system. They can be stored on either side or on the front grip
without fear of oil leakage, due to Yamaha’s exclusive Easy
Storage Oil Retention System.
The carburetor and its setting is factory-selected for
maximum fuel efficiency, helping these outboards achieve
a 3-star C.A.R.B. emissions rating. Additionally, automatic
decompression, built-in auxiliary priming, and start-in-gear
prevention help make for easy, safer starts.
With a dynamically-balanced and dampened large twist-grip
throttle, 180-degree steering, and large F-N-R shift handle;
comfortable, convenient control is key.
A 1.1L see-through fuel tank is built in, with switchable access
to an optional external tank for extended range. A tilted, water-
resistant fuel filler cap and built-in fuel strainer add to both the
convenient operation and reliability of these outboards.
A 5-step trim adjustment couples with a 3-step Shallow Water
Drive System to help make these outboards perform in various
conditions. A splined propeller shaft and an expanded selection
of available propeller sizes give you performance that’s versatile
and easy to handle and operate.
Revised 12/18/09

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 identification 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 specifications.
F250 SPECIFICATIONS
Consult appropriate Yamaha rigging information and Yamaha Rigging Sheet (YMBS) for complete rigging
compatibility and requirements information for particular configurations. All rigging items sold separately.
SPECIFICATIONS
F6 / F4 Portables Four Stroke
ENGINE
Type One-Cylinder
Displacement 139cc (8.5 ci)
Bore x Stroke 62 x 46mm (2.44 x 1.81 in)
Full Throttle RPM Range 4000 ~ 5000 (F4)
4500 ~ 5500 (F6)
Horsepower Rating 4hp at 4500 rpm (F4)
at Propshaft 6hp at 5000 rpm(F6)
Compression Ratio 8.9:1
Fuel Induction/Scavenging OHV
Alternator Output 6 Amp (Optional: Requires Charging Kit)
Starting Method M = Manual
See Model Code
Ignition CDI
Lubrication Wet Sump
Degree of Trim 5 positions
Degree of Tilt 69°
Exhaust Above Propeller
Cooling Water/Thermostatic Control
DRIVE
Gear Shift Forward, Neutral, Reverse
Gear Ratio 13:27 (2.08)
SHAFT LENGTH
See Model Code S = 15” L = 20”
FUEL AND LUBRICATION
Recommended Fuel Regular Unleaded
(Minimum Pump Octane 87)
Fuel Tank Capacity (Integral) 1.1L (.29 gal)
Ethanol Blend Limit 10% Maximum
Recommended Oil Yamalube® 4M
(See owner’s manual)
Engine Oil Capacity .6L (.63 qt)
WEIGHT
F6SMHA 27kg (60 lbs)
F6LMHA 28kg (62 lbs)
F4SMHA 27kg (60 lbs)
F4LMHA 28kg (62 lbs)
LIMITED WARRANTY
Pleasure Three Years
Government Three Years
Commercial One Year
FEATURES
POWER/PERFORMANCE
RELIABILITY/DURABILITY
CONVENIENCE/CONTROL
•180-Degree Steering w/F-N-R Shifting
•Shallow Water Drive
•Easy Storage Oil Retention System
•Standard Tiller Handle
•Easy Start Decompression Device
•Lubrication Check Window
•Multiple Gripping Points
•Dual Transom Clamps
•Dynamically Balanced Tiller Handle
•Lower Cowling Damper
•Built-In See-Through Fuel Tank
•Tilted Fuel Filler Opening
•Selectable External Fuel Tank (Optional)
•Forward/Neutral/Reverse Shifting
•Four Stroke Engine Design
•OHV
•2-valves Per Cylinder
•Precise Carburetor Setting
•Built-in Auxiliary Priming Pump
•Streamlined Intake Manifold
•Long Span Mount System
•Oil Separator
•Streamlined Gearcase
•Dynamically Balanced Crankshaft
•Labyrinth Exhaust
•California C.A.R.B. Ultra Low Emissions 3 Star Rating
•Meets all current Federal EPA Emission Standards
•CDI Ignition System
•Pressurized Lubrication
•Thermostatic Temperature Control
•Sacrificial Anodes
•ACP 221 Paint Process
•SST Drive, Prop, Shift Shafts
•Splined Propeller/Shaft
•Built-in Fuel Filter
© 2009 Yamaha Motor Corporation, U.S.A. All rights reserved.
Primary ID Prefix: (F6) 6BX (F4) 6BV
Revised 12/18/09