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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. 
16-Valve DOHC Direct-Action In-Line 4 
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. 
Innovative intake throttle for latest F115 
The innovative 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. 
Micro-computer ECM (Engine Control Module) 
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. 
Digital Network Gauges 
The F115 and F150 are compatible with Yamaha’s Digital Network Gauges, giving you the information needed to maximise engine performance and efficiency, including a Multifunction Tachometer with RPM, Hours Run, Trim Angle, Oil Pressure, Warning lamps and Variable RPM control - and a Speed/Fuel Management Gauge with Speed, Tank Capacity and Fuel Economy 
Remote security (Y–COP) system 
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. 
Counter-rotating propeller models 
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. 
Dual Battery Charging System - F150 only 
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. 
Click on the specification pdf below to find out more information regarding this engine including weight, transom height etc 
For more information please call us on 01752 407070  
and we will be happy to help. 
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