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 completely redesigned, 1.8-liter F90 Jet Drive four stroke produces 65hp at the pump. Its compact, light-weight SOHC four-cylinder, in-line design features a long-track induction system and Yamaha’s proprietary YDC-30 aluminum alloy. This creates a light, compact, powerful outboard for deck boats and deep-V hulls navigating shallow, rocky rivers.
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    1.8L
Bore x Stroke    81mm x 88.9mm (3.19 x 3.5 in)
Prop Shaft Horsepower    65hp @ 5500rpm
Full Throttle RPM Range    5000 ~ 6000 rpm
Alternator Output at W.O.T.    35 Amp
Compression Ratio    10.0:1
Fuel Induction System    EFI
Weight †    161kg (354 lbs)
Recommended Fuel    Octane 87
Recommended Engine Oil    Yamalube® 4M (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    16
Ignition    TCI Microcomputer
Spark Plug    LFR5A-11
Alternator Output    35 Amps
Starting System    Electric
Lubrication    Wet Sump
Engine Oil Capacity    3.2L/3.0L
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    70°
Degree of Trim    -4 through 16°
Dry Weight    225kg (495 lbs)
Mounting Centers    N/A
Steering Angle (maximum)    35° 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
Owner’s Manual