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Yamaha F90B

90HP

Yamaha F90B

Next Level Innovation and Performance


The F90 uses a 1.8-litre, 16-valve four-cylinder engine with EFI. Its compact design, high-output alternator and power trim and tilt provide a versatile 90HP package.

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Engine Type - 4-Stroke, 16 Valve SOHC In-line 4 Cylinder
Displacement (cc) - 1832.0
Bore x Stroke (mm) - 81 x 88.9
RPM Range - 5000 - 6000
Fuel System - EFI
Ignition - TCI
Starter System - Electric
Alternator - 12V - 35A with Rectifier Regulator
Weight (kg) - L: 162 | X: 166
Operation - Mechanical Control (Optional Tiller Handle)
Tilt - Power Trim & Tilt
Gear Ratio - 2.15:1
Lubrication - Wet-sump

Lachie O'Brien Northside Marine

Lachie O'Brien

Outboard Specialist

Lachie has a lifelong passion for the water, shaped by his upbringing on large cruisers along the Gold Coast. Growing up in a boating family, he gained deep firsthand experience with the marine lifestyle. Over the years, he has owned numerous boats and watercraft, developing expertise in everything from jet skiing and surfing to sailing and boating.

His extensive experience with tenders and RIBs naturally led him to become a Highfield brand captain. He enjoys exploring Moreton Bay and its stunning islands with his family, always seeking new adventures on the water.

With a strong interest in technology, Lachie is committed to helping customers find the perfect product to enhance their boating experience. His enthusiasm and expertise ensure a smooth and enjoyable buying journey for every client.

He provide honest guidance and valuable insights to ensure every client makes confident decisions, whether they’re seasoned boaters or first-time buyers.

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