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The all-new 1.8-liter I-4 F90 features greater displacement and a single-overhead-camshaft design with four valves per cylinder. This boosts power and volumetric efficiency, streamlines design, and makes the F90 a leader in torque and acceleration. The new F90 fills an important place within the Australian line up, delivering the perfect power option for the huge number of Aussie built boats rated to a maximum of 90 horsepower. Not only does this engine sit in a popular part of the market, it also delivers many new advantages that make F90 quite exceptional.
$5,140.00
When you need to get to where a prop won't take you, get an F90 Jet Drive. This 65hp engine is a marine-inspired 4-stroke that's as much as 50% quieter than a conventional 2-stroke, and up to 30% more fuel efficient, too. 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.
$5,230.00
New Yamaha F90 90HP 4 Stroke Long Shaft Outboard Engine - Sale !! (F90)
The new F90 fills an important place within the Australian line up, delivering the perfect power option for the huge number of Aussie built boats rated to a maximum of 90 horsepower. Not only does this engine sit in a popular part of the market, it also delivers many new advantages that make F90 quite exceptional.

The F90 is equipped with a four-cylinder 16-valve in-line SOHC 1.8L engine, bigger displacement than the previous generation 1.5L engine it replaces. Most impressively the bigger F90 weighs in close to 10kgs lighter than the old engine. This remarkable achievement means improved performance, and better balance when fitted on hulls in this category.

The F90 is based on the F115B’s four-cylinder power unit. The F90’s reduction in weight and improved compactness is achieved by adopting a single overhead camshaft design (SOHC), actuating four valves per cylinder. This unique valve train design was first seen in Yamaha’s award-winning F70A, one of the most popular engines in Australia. This design allows the F90 to achieve the weight savings of a single camshaft while still achieving the smooth and efficient performance only seen in 16 valve, four-cylinder engine of this size.

This lightweight powerhead configuration, refined shaping of the combustion chamber and lean fuel burn technology utilised at mid-range speeds, allows the F90 to deliver exceptional fuel efficiency.

The new F90 delivers a 10% improvement in fuel economy compared with the previous generation engine. The F90 is not only extremely fuel efficient it’s also exceptionally smooth and quiet. Noise has been reduced through improved engine unit rigidity, muffler redesign as well as addition of an intake silencer.
The F90 is compatible with Yamaha’s comprehensive range of command link digital gauges, with options of both basic back-lit LCD and premium full colour displays. The engine is also NMEA2000 compatible allowing the F90 to share information with third party multi-function displays, GPS and fish finders.

The amount of engine development and innovation that can be found in Yamaha’s mid-range outboards is truly unique, and the new F90 strengthens Yamaha’s product offering across this range. Yamaha has not resorted to a “one size fits all” style engine platform to minimize production costs. Not only does Yamaha have a class leading outboard motor in each horsepower category, Yamaha also produces the most diverse range of engine platforms within these horsepower categories. This reflects Yamaha’s focus on delivering customer driven innovation to the marine marketplace. Each engine platform has been tailor-made to satisfy the individual requirements of customers and their boats. Within Yamaha’s range, there is no need for Australian skippers to compromise when it comes to selecting a power option.

The all-new F90 neatly shares the same installation mounting holes as other outboards of similar sizes, making for an easy switch from a two-stroke, or other brands to the latest generation Yamaha four-stroke engine.

Available in:

F90LB - Electric Start, Tilt System - Electric Start, Transom height - Long
F90XB - Electric Start, Tilt System - Electric Start, Transom height - Extra-Long
Tiller - 6X4 Multi-Function Tiller Handle(contact for details)


Specs :

Engine Type    4-stroke, 4-cylinder, 16-valves, SOHC
Displacement    1832cc
Bore x Stroke    81.0 x 88.9mm
Recommended Max RPM    6100RPM
Lubrication System    Wet-sump
Fuel Management    EFI
Ignition    TCI Microcomputer
Starter System    Electric
Alternator Output    35 Amp
Trim & Tilt Method    Power trim & tilt
Digital Gauges    Standard
Digital Network Gauges with Fuel Management    Optional
Gear Ratio    2.15 : 1
Engine Oil Capacity    3.2L / 3.0L with/without oil filter exchange
Fuel Type    Regular Unleaded
Scavenging    Single Over Head Camshaft
Previous model/code    New model!
 
Dimensions

Transom Length    
F90LB: 516 mm (20.3 in)
F90XB: 643 mm (25.3 in)
Weight    
F90LB: 162 kg
F90XB : 166 kg
 
CDI-E: CDI-Electronic Automatic
CDI-M: CDI-Microcomputer
TCI: Transistor Controlled Ignition

Also you can check product : New Yamaha F75 75HP 4 Stroke Long Shaft Outboard Engine - Sale !!

The all-new 1.8-liter I-4 F90 features greater displacement and a single-overhead-camshaft design with four valves per cylinder. This boosts power and volumetric efficiency, streamlines design, and makes the F90 a leader in torque and acceleration. The new F90 fills an important place within the Australian line up, delivering the perfect power option for the huge number of Aussie built boats rated to a maximum of 90 horsepower. Not only does this engine sit in a popular part of the market, it also delivers many new advantages that make F90 quite exceptional.
$5,140.00
New Yamaha F90JB 90hp Jet Drive Outboard Engine - Sale !! (F90JB)
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

Also you can check product : New Yamaha F115JB 115hp Jet Drive Outboard Engine - Sale !!

When you need to get to where a prop won't take you, get an F90 Jet Drive. This 65hp engine is a marine-inspired 4-stroke that's as much as 50% quieter than a conventional 2-stroke, and up to 30% more fuel efficient, too. 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.
$5,230.00
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