Yamaha F300B Outboard Engine

The ultimate V6 power for offshore adventures

For clean, smooth performance, maximum fuel efficiency and easy starting, the advanced 24-valve DOHC engine features EFI (Electronic Fuel Injection) as well as VCT (Variable Camshaft Timing) while Yamaha's 'drive-by-wire' electronic throttle and shift delivers you the smoothest, most precise control you'll ever experience. Combining advanced technology with style, the beautifully compact and streamlined design speaks for itself.

*24-valve DOHC with Electronic Fuel Injection (EFI)

*Precise digital electronic throttle/shift control

*PrimeStart™ quick start system for easy starting

*Variable trolling RPM Engine synchronisation (twin/triple)

*Digital Network Gauges (conventional and premium)

*High output alternator (70A) for the engine class

*Y-COP (Yamaha Customer Outboard Protection)

*Wide Range Power Trim & Tilt for smooth control

*Simple, quick-connect fresh water flushing device

*Meets latest RCD (EU 2006) emission rating

*SDS shift dampening system for smooth shift

24-valve, 4.2 litre 60º V6 with DOHC, EFI & VCT

An advanced, lightweight powerhead design features plasma-fused, sleeveless cylinders, double overhead camshafts (DOHC) and 4 valves per cylinder. Variable camshaft timing (VCT) delivers increased combustion efficiency across the RPM range. This combination of advanced technologies gives class-leading horsepower-per-l

EFI system for greater efficiency and economy

Electronic fuel injectors deliver the exact amount of fuel needed for optimum performance and economy. Controlled by a micro-computer Engine Control Module (ECM) via input from an array of engine sensors, and located just above the intake valves, these injectors enhance fuel atomisation, resulting in more efficient combustion.

Micro-computer ECM (Engine Control Module)

This micro-computer is the ‘brain’ hidden inside your engine. It constantly monitors all data inputs and settings, helping to ensure smooth running and optimised ignition timings – as well as automatically activating warning & protection systems. A handy access port lets an authorised Yamaha dealer instantly diagnose any probl

Electronic ‘drive-by-wire’ throttle/shift and Trolling RPM control

The most precise control you've ever experienced, the optional Digital Network System also offers control of engine speed for trolling. A button on the tachometer adjusts the RPM in precise 50 RPM steps, between 600 and 1000. Automatic engine synchronisation in twin/triple installations.

Digital Network Gauges (Conventional & Premium)

The F225-F300 are compatible with Yamaha’s Digital Network Gauges, which display data to maximise performance and efficiency. A Multifunction Tachometer displays RPM, Hours Run, Trim Angle, Oil Pressure, Warning lamps and Variable RPM control. The Speed/Fuel Management Gauge shows Speed, Tank Capacity and Fuel Economy.

New Digital Network System II

The Yamaha Digital Network System II is now available for these engines. It features the new 6Y9 gauges, a high-resolution colour LCD display, a choice of new push button start/stop panels, control boxes, accessories, and an NMEA-2000® gateway. This advanced system can easily be configured for single, double or triple engine applications.

Tech Spec

* The kW data is based on the ICOMIA 28 standard, measured at the prop shaft