F90 Stainless Steel Propeller

The next-generation F90 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.


 Configuration 16-Valve SOHC Direct Action In-line 4
Bore x Stroke (mm) 81 x 88.9
Displacement (cm²) 1832
Recommended Map RPM 5000 – 6000



Weight: L
(Stainless Steel Propeller)
 162 Kg
Weight: X
(Stainless Steel Propeller)
 166 Kg
Transom Height: L  516 mm (20.3″)
Transom Height: X  643 mm (25.3″)
Fuel Induction System  EFI
Fuel Tank Capacity  N/A
OEDA Emission Rating  3 Star
Lubrication System  Wet Sump
Alternator Output  112V – 35A with Rectifier Regulator
Gear Ratio 2.15 : 1
Starter System  Electric
Operation Method  Mech Control (Optional Tiller Handle available)
Trim & Tilt Method  Power Trim & Tilt
Digital Gauges  Optional
Command Link Digital Gauges  Optional