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are for identifi cation purposes only, and are not intended to be an endorsement.
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F250 SPECIFICATIONS
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.
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
•
Sacrifi cial 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 Prefi x: (F6) 6BX (F4) 6BV
Revised 12/18/09