Yamaha’s next-generation F90 four stroke is a direct-evolution of the previous 1.5 litre model, delivering increased fuel-efficiency, reduced-weight and improved performance. Filling an important place in Yamaha’s class-leading mid-range line-up, the new F90 delivers the perfect power option for the large number of Aussie built boats that have a maximum hull rating of 90 horsepower. The four-cylinder, 16-valve, SOHC 1.8L marine engine, is not only 10KGs lighter, but an increase in displacement over the previous generation 1.5L engine aids in a richer torque-band.

The reduction in weight and improved compactness has been achieved through the adoption of a single overhead camshaft valve-train, delivers smooth and efficient performance only seen in 16-valve, four-cylinder engines of this size. The new F90 delivers a 10% improvement in fuel-efficiency and a significant reduction in noise, through improved engine unit rigidity, muffler redesign and the addition of an intake silencer. The Yamaha F90 is compatible with Yamaha’s range of Command-Link gauges, while its NMEA2000 compatibility allows for easy integration with third-party multi-function displays, GPS and fish finders.

Available in:

• F90LB - EFI, Tilt System - Remote Control, Transom height - Long
• F90XB - EFI, Tilt System - Remote Control, Transom height - Extra-Long

General Features and highlights:

• Compact size and very lightweight - 162kg(long shaft & 166kg(extra-long shaft)
• Massive 1832cc displacement for just a 90hp
• Highly efficiant 16 valve Single Over Head Camshaft (SOHC) system
• ECU controlled with knock sensor which gives efficient performance
• High Output Alternator - a massive 35amp, generating 28amp at 1000rpm
• Variable Trolling Speed (set speeds between 550rmp to 1000rpm)
• Compatible with Command Link Digital gauges, including full colour option
• 5mm Offset Crankshaft for improved efficiency and performance
• 60mm Throttle and Intake Silencer, improves performance and reduces noise
• Labyrinth Exhaust System, muffles exhaust noise and improves efficiency

Specifications:

• Engine Type - 4-Stroke, 16 Valve SOHC In-line 4 Cylinder
• Bore x Stroke (mm) - 81 X 88.9
• Displacement (cc) - 1832.0
• Recommended Maximum RPM  5000 - 6000
• Fuel Management - EFI
• Ignition - TCI
• OEDA Emission Rating - 3
• Lubrication System - Wet sump
• Alternator Output - 12V - 35A with Rectifier Regulator
• Gear Ratio - 2.15 : 1
• Starter System - Electric
• Operation Method - Mechanical Control (Optional Tiller Handle Available)
• Trim and Tilt Method - Power Trim & Tilt
• Digital Gauges - Optional 
• Command Link Gauges - Optional
• Transom Height (mm [inch]) - L: 516 [20.3] | X: 643 [25.3]
• Dry Weight (kg) - L: 162 | X: 166