2026 YAMAHA F90LB

The Yamaha F90LB is a  90hp, 1.8-liter inline-four 4-stroke outboard with a 20-inch shaft, SOHC design, and 16 valves . Weighing approximately 353 lbs, it features EFI for efficiency, a 35-amp alternator, and a 2.15:1 gear ratio. It is designed for strong acceleration and includes Variable Trolling RPM control.

Engine Specifications

• Engine Type: Inline 4-Cylinder (4-stroke)
• Displacement: 1832cc (1.8 L)
• Bore x Stroke: 81 x 88.9mm (3.19 x 3.5in)
• Prop Shaft Horsepower: 90hp @ 5500 RPM
• Full Throttle RPM Range: 5000–6000 RPM
• Compression Ratio: 10.0:1
• Fuel Induction: EFI (SOHC)
• Exhaust: Through Propeller
• Shaft Length: 20 inches (L)
• Weight: 353 lbs (160 kg)