Yamaha F6 FourStrike - Specifications and Features Overview; Engine Specifications; Drive System Specifications; Fuel and Lubrication Details

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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