Yamaha F90LB2 90HP in White 20″ Shaft Standard Rotation Remote Mechanical

Yamaha F90LB2 90HP White EFI

The Yamaha F90LB2 pairs a 1.8L 4-cylinder SOHC engine with a 16-valve cylinder head, finished in Pearlescent White at 353 lbs dry — a strong power-to-weight ratio for high-end fiberglass tenders and luxury pontoons. The 20-inch long shaft and 2.15:1 gear ratio are built for Mulmarine’s reliable marine propulsion systems lineup that need consistent cooling water flow during high-speed transits.

Technical Specifications of Yamaha F90LB2

• The 1.8L L4 SOHC 16-valve engine delivers 90HP with strong volumetric efficiency.
• The White 160 kg build runs a 20-inch shaft for standard offshore boat transoms.
• Precision multi-point EFI ensures consistent combustion and instant starts across the 5000-6000 RPM band.
• Power Trim and Tilt allows effortless engine adjustment directly from the remote mechanical helm.
• The 35-Amp alternator ensures navigation displays and digital sonar systems remain powered daily.
• NMEA 2000 certification allows integration with modern digital helm electronics.
• Coverage comes from a limited 3-year factory warranty and Japanese maritime engineering standards.

White Midrange Performance

The 1.8-liter block gives higher torque and smoother power delivery than smaller-displacement competitors, reducing vibration while providing the pull needed for hole-shot acceleration under full loads.

High Output Alternator

The 35-Amp alternator keeps onboard marine electronics and digital displays fully powered, supporting multiple fishfinders, livewell pumps, and navigation radar without draining the starting battery.

Routine Care Protocol

This EFI four-stroke engine runs high-quality sacrificial anodes to keep galvanic corrosion in check in saltwater coastal environments. Pro Tip: flush the engine with fresh water after every launch to maintain cooling efficiency.