Yamaha’s Jet Drive four strokes, can boldly go where no propped outboard would dare. Shallows. Rocky-bottom rivers. Shoals. White-water rapids. They’d all prove treacherous for a propeller-driven outboard, but a jet drive is all over it. Prop-free, you can “off-road” without worrying about breaking a prop on rocks and other underwater obstructions. So, while you may be giving up the prop, you’re gaining a whole lot of freedom, with powerful, fuel efficient Yamaha Jet Drives available in 150, 115, 90, 60 and 40 horsepower.
 
Yamaha's 1-liter F60 Jet Drive four stroke produces 40hp at the pump. Its compact, light-weight SOHC four-cylinder, in-line design features a single throttle valve and long-track induction system. This creates a light, compact, powerful outboard and improves throttle response. 

KEY FEATURES

Incredible Maneuverability: With no gearcase or propeller extending below the hull, a jet drive allows you to maneuver around or pass over obstructions that would limit the travel of a conventional, propped outboard.

Easy Engine Flushing: A Freshwater Flush Device allows you to flush the engine without running it, for added convenience and extended engine life.

Reliability and Durability: Combined with our proprietary alloy (YDC-30), Yamaha's exclusive Phaze Five anti-corrosive paint system provides a tough, five-layer barrier against corrosion. This protection is standard on all Yamaha Jet Drive four stroke outboards.

SPECS : 

Engine Type    Inline 4
Displacement    1.0L
Bore x Stroke    65mm x 75mm (2.56 x 2.95 in)
Prop Shaft Horsepower    40hp @ 5500rpm
Full Throttle RPM Range    5000 ~ 6000 rpm
Alternator Output at W.O.T.    17 Amp
Compression Ratio    9.5:1
Fuel Induction System    EFI
Weight †    116kg (257 lbs)
Recommended Fuel    Octane 87
Recommended Engine Oil    Yamalube 4-M (See Owner's Manual)
Recommended Fuel Filtration    Yamaha 10-Micron Fuel/Water Separating Filter (external)
C.A.R.B. Rating    3-Star
Exhaust    Through Jet Nozzle
Intake    8
Ignition    TCI Microcomputer
Spark Plug    DPR6EB-9
Alternator Output    17 Amps
Starting System    Electric
Lubrication    Wet Sump
Engine Oil Capacity    2.1L/1.9.L
Recommended Cooling    Thermostatic Control
Ethanol Blend Limit    10% Maximum
Gear Ratio    Direct Drive
Gear Shift    Forward, Neutral, Reverse
Shaft Length    Fits 25" Transom
Degree of Tilt    69°
Degree of Trim    -4 through 16°
Dry Weight    225kg (495 lbs)
Mounting Centers    N/A
Steering Angle (maximum)    40° from center, either direction
Warranty    Limited 2-Year Pleasure, 2-Year Government, 1-Year Commercial

STANDARD FEATURES :

Power Trim & Tilt
Jet Lower Unit
Steering Link Arm
Fuel Line
Owner's Manual