A special Dual Battery Charging System allows two batteries to be charged simultaneously, ensuring that plenty of power is available for engine starts – even after long periods at low RPM.
A standard twin-engine installation (with both propellers turning clockwise) pulls the boat towards the port side, making steering difficult, especially at higher speeds. The F115 and F150 are available with a counter-rotating propeller, for perfect ‘neutral helm' control when fitted alongside a standard model.
Peace of mind now comes as standard on the F115 and F150. Your Yamaha is valuable and sought-after – sometimes by people you might not want to share it with – so Yamaha Customer Outboard Protection (Y–COP) is a simple, push-button remote control that immobilises your engine, ensuring that just like your car, it only starts when you want it to.
A range of digital instruments give you access to the information you need to maximise engine performance and efficiency. A Multifunction Tachometer displays RPM hours, trim angle, oil pressure and warning lamps. The Speed/Fuel Management Gauge shows speed, tank capacity and fuel economy data.
A reliable micro-computer is the 'brain' of your engine. By constantly monitoring all data inputs and settings, it helps to ensure smooth running and optimised ignition timings – as well as automatically activating warning and protection systems. A handy access port lets authorised Yamaha dealers easily diagnose any problems.
With 2 intake valves and 2 exhaust valves on each cylinder – and, with twin camshafts, each also driven independently – intake and exhaust efficiency are dramatically improved, optimising fuel use during combustion. The TCI ignition system ensures easy starting, consistency, longer plug life and - ultimately - reliability.
Whether you're out to have fun on your boat – or a busy professional – choose the engine that helps you get more out of your time on the water.
Every engine in the Yamaha range uses the very latest Yamaha marine technologies, engine layouts and ingenious intake and exhaust systems. Efficient performance is ensured by a system of micro-computer controls that precisely monitor the engine – from fuel mixture to combustion efficiency and maintenance scheduling.
And, without compromising on power, performance or usability, our specially designed marine engines also help preserve the environment through the use of pioneering clean-burn technologies.
The innovative new single throttle replaces the original 4-valve set-up and works in conjunction with the ECM to increase fuel efficiency – as well as delivering quicker throttle response and acceleration under all operating conditions.
Discover the versatility and power of a Yamaha engine. Quick response, via push-button control, makes trim and tilt adjustments swift, smooth and easy. Experience a trim range of -4° to +16°, with negative trim settings improving acceleration and bringing the boat onto the plane quickly.
With the F150 and the latest-generation, lightweight design F115, you can truly relax on the water – powered by the cleanest, most efficient engines on the market.
These advanced DOHC (Double Overhead Camshaft) models use a range of technologies to optimise the combustion process. Special intake and exhaust systems, plus Yamaha's EFI system, bring outstanding fuel efficiency, working in partnership with a micro-computer which analyses and adjusts the fuel/air mixture for efficient combustion.
PrimeStart™ ignition and many other unique features – like Yamaha's Y-COP remote security and our Wide Range Power Trim & Tilt system – make these engines a real pleasure to use.
