Yamaha F70 Midrange 20 in. Tiller

Signature Yamaha GrayNew Boat Engines

Yamaha F70 Midrange 20 in. Tiller in Pine Bluff, Arkansas - Photo 1
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Slather the kids in sunscreen. Grab the tackle and rods. Pile onto the pontoon. You’re about to make some memories with Yamaha’s Midrange four strokes. Light and powerful and available in 70, 60, or 50 hp, Yamaha midranges deliver quick starts, high performance, and incredible efficiency for aluminum fishing boats, pontoons, and fiberglass boats. Quality time starts with a Yamaha Midrange 70-, 60-, or 50-hp four stroke.

Our 1-liter 70-hp midrange features a two-piece upper case and 10 percent lighter pistons. Combined with its 16-valve SOHC design and 17 percent larger intakes, it’s one of the most responsive outboards on the water. Now available in matte brown, it’s also one of the stealthiest.

  • Only 253 pounds
  • Available in a 20” shaft
  • Powerful 15-amp alternator
  • Optional Variable Trolling RPM Switch (VTS®)
  • Available in signature Yamaha gray, pearlescent white, and NEW matte brown
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Yamaha F70 Midrange 20 in. Tiller

Condition
New
Category
Boat Engines
Model Type
70 / 60 / 50 hp
Model Code
NA
Color
Signature Yamaha Gray

Convenience and Control

  • EASY ENGINE FLUSHING: A Freshwater Flush Device allows you to flush the engine without running it, for added convenience and extended engine life.
  • GAUGE COMPATIBILITY: Optional Command Link® gauges provide real-time outboard performance, boat systems and environmental data at your fingertips. Streamlined displays are designed to withstand the elements and are available in square or round style for single- or multi-engine applications.

Features

  • Prop shaft horsepower - 70 hp at 5,800 rpm
  • Compression ratio - 9.4:1
  • Recommended fuel - Octane 87
  • Recommended fuel filtration - Yamaha 10-micron fuel / Water separating filter (external)
  • C.A.R.B. rating - 3-Star
  • Intake - 16
  • Spark plug - LKR7E
  • Ethanol blend limit - 10% maximum
  • Degree of tilt - 65°
  • Compatible controls - Multi-function tiller handle
  • Compatible gauges - Command link and analog

Power and Performance

  • SINGLE OVERHEAD CAMSHAFT: A Single Overhead Camshaft (SOHC) on the F70, F60 and F50 provides a compact, lightweight, space-saving design.
  • FUEL ECONOMY: Precision Multi-Point Electronic Fuel Injection delivers the exact amount of fuel needed for optimum performance and efficiency. Yamaha’s EFI optimizes fuel atomization further enhancing fuel economy.
  • OPTIMUM PERFORMANCE: A TCI microcomputer ignition adjusts timing to maintain optimal engine performance, economy and power under all operating conditions.
  • PRECISE THROTTLE CONTROL: All air entering the engine block is routed through a single throttle valve, to ensure the precise amount of air necessary for optimum power and fuel efficiency. 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.

Reliability & Durability

  • PROTECTION FROM THE ELEMENTS: All Yamaha Midrange in-line engines feature a proven cowling drain system, to easily and efficiently drain away any water that enters the cowling during normal engine operation. Incoming air is routed through a labyrinth of passages that trap and drain water before it enters the engine's intake, for maximum reliability.
  • CORROSION PROTECTION: Combined with our proprietary alloy (YDC-30), our exclusive Phaze Five™ electro-deposited, anti-corrosive paint system provides a tough, five-layer barrier against corrosion. This protection is standard on all the Yamaha Midrange 70-, 60- and 50-horsepower outboards.
  • ENGINE WARNING SYSTEM: This system protects the outboard with a range of functions including: overheat protection and low-oil-pressure warning (automatically reducing maximum RPM to 2000), over-rev protection, water-in-fuel detection, start-in-gear protection and shift-in prevention at open throttle.
  • WET SUMP: The F70, F60 and F50 use a pressurized oil delivery system and incorporate a compact and durable oil pump to keep all of the moving parts of their SOHC systems lubricated and running smoothly for maximum reliability.
  • MAGNETIC DRAIN PLUG: Located in the lower unit to remove metal particles from the gear oil and prevent gearcase damage.

General Information

Manufacturer
Yamaha
Model
F70 Midrange 20 in. Tiller
Model Code
NA
Color
Signature Yamaha Gray

Electrical

Alternator Output
At W.O.T. - 15A

Engine

Engine Type
i4
Ignition
TCI Microcomputer
Starting
Electric
Exhaust
Through propeller

Measurements

Power
70 Horsepower
Displacement
1,000 Cubic Centimeter
Bore x Stroke
2.56 x 2.95 in. (65 x 75 mm)
Shaft Length
20"
Dry Weight
253 lbs

Operational

Steering
Angle (maximum) - 40° from center, either direction
Fuel Type
Unleaded
Full Throttle RPM Range
5,300 - 6,300 rpm
Fuel Induction
EFI
Lubrication

Wet sump

Recommended engine oil - Yamalube® 4M (See owner's manual)

Engine oil capacity - 2.2 qt. (2.1 l) / 2.0 qt. (1.9 l)

Cooling
Recommended - Thermostatic control
Gear Ratio
2.33:1
Gear Shift
Forward, Neutral, Reverse
Trim System
Degree of trim - -4° through +16°

Other

Additional Colors

Signature Yamaha Gray

Pearlescent White

Matte Brown

Warranty
Limited 3-year pleasure, 3-year government, 1-year commercial

Gallery

Yamaha F70 Midrange 20 in. Tiller in Pine Bluff, Arkansas - Photo 1
Yamaha F70 Midrange 20 in. Tiller in Pine Bluff, Arkansas - Photo 2
Yamaha F70 Midrange 20 in. Tiller in Pine Bluff, Arkansas - Photo 3
Yamaha F70 Midrange 20 in. Tiller in Pine Bluff, Arkansas - Photo 4
Yamaha F70 Midrange 20 in. Tiller in Pine Bluff, Arkansas - Photo 5
Yamaha F70 Midrange 20 in. Tiller in Pine Bluff, Arkansas - Photo 6

Due to continued challenges across supplier networks as well as increasing logistics costs, product pricing, freight charges, specifications, and features are subject to change at any time without prior notice. Please confirm all information with your local dealership.

Images, where available, are presented as reasonable facsimiles of the offered unit and/or manufacturer stock images. Non-standard options or features may be represented. No guarantee of availability or inclusion of displayed options should be inferred; contact the dealer for more details.

  • Price, if shown and unless otherwise noted, represents the Manufacturer's Suggested Retail Price (MSRP) or dealer unit price and does not include government fees, taxes, dealer vehicle freight/preparation, dealer document preparation charges, labor, installation, or any finance charges (if applicable). MSRP and/or final sales price will vary depending on options or accessories selected; contact dealer for more details.

  • Images, where available, are presented as reasonable facsimiles of the offered unit and/or manufacturer stock images. Non-standard options or features may be represented. No guarantee of availability or inclusion of displayed options should be inferred; contact dealer for more details.