Delivering the best power-to-weight in the class

The innovative, lightweight design F115 lets you relax and enjoy your boat to the full – knowing you’re powered by one of the cleanest, smoothest engines on the planet.

Not only is the engineering impressive – this is a 1.8 litre, 16 big-Valve, in-line 4-cyl DOHC 4-stroke – but it’s blended with a host of electro/technical features to make life easier: Compatibility with our optional Digital Network System, Wide Range Power Trim & Tilt with Tilt angle limiter and Y-COP® remote security system (both optional) to name but a few.

The efficiency of our well proven EFI systems and other new combustion technologies ensure the utter dependability of this outstanding Yamaha engine.


  • 1,832cc 16-Big-Valve DOHC in-line 4 cyl 4-stroke
  • Weighs only 174kg – class-leading power-to-weight
  • EFI – clean, efficient performance and reliability
  • Latest-generation top cowling – sleek and compact
  • Compatible with Yamaha Digital Network System
  • Variable Trolling RPM system – for relaxed boating
  • Yamaha Customer Outboard Protection (Y-COP) option
  • 35A High Output alternator – extra starting power
  • Single Ram PTT and optional Tilt Angle Limiter
  • Shallow Water Drive for cruising close inshore
  • TALON Series propeller – damps noise and vibration
  • Counter-rotating propeller model available


1,832cc 16-Big-Valve DOHC in-line 4-cylinder 4-stroke

With its innovative intake and exhaust valve design – and twin camshafts, each driven independently – the F115’s intake and exhaust efficiency are dramatically improved, optimising fuel use during combustion. The TCI ignition system ensures easy starting, consistent running, longer plug life – and complete dependability.

Compact, lightweight design – ideal for re-powering

The versatile F115 is the leading power-to-weight performer in its class, making it the ideal choice for a wide range of activities – and opening up exciting opportunities for re-powering. The remarkable, powerful performance and smooth 4-stroke efficiency bring a new lease of life to older boats of many types and sizes.

Yamaha Customer Outboard Protection (Y-COP) option

The optional Y-COP immobiliser system is simple, easy to use and highly effective – a neat and simple remote control locks and unlocks the engine at the push of a button. This prevents your outboard engine being taken for any unauthorised joyrides, offering you peace of mind when leaving your boat unattended.

Digital Network System option – clear, accurate information

The F115 is the perfect fit for Yamaha’s Digital Network System and Gauges – maximising their performance and efficiency: Multifunction Tachometer with RPM, Hours Run, Trim Angle, Oil Pressure, Warning lamps and Variable Trolling RPM control – and a Speed/Fuel Management Gauge with Tank Capacity and Fuel Economy.

Variable Trolling RPM Control – no more speeding worries

A very relaxing and reliable system, which is standard on the F115. Simply set and hold the low speed rpm (between 600 & 1000) in 50 rpm steps, using a button on the tachometer. This advanced system resets automatically when the throttle is moved again.

35 Amp High Output alternator

A special High Output alternator system is fitted as standard on the F115, to ensure that plenty of power is available for engine starts – even after long periods at low RPM or when using multiple accessories. A comforting thought when you’re out fishing – at night – or planning a long, lazy day on the river.

Counter-rotating propeller model

A standard twin-engine installation (both propellers turning clockwise) tends to pull the boat towards the port side, especially at higher speed, making steering more difficult. So the F115 is offered with a counter-rotating propeller to fit alongside the standard model, giving the driver control with ‘neutral helm’ at any speed.

Tehnički podaci


Engine type4-stroke
Displacement1,832 cm³, –
No. of cylinders/Configuration4/In-line, 16-valve, DOHC
Bore x stroke81.0 mm x 88.9 mm, –
Prop shaft output at mid range84.6kW / 5,800 rpm
Full Throttle Operating Range5,300 – 6,300 rpm
Lubrication systemWet sump
Fuel Induction SystemEFI
Ignition / advance systemTCI
Starter systemElectric with Prime Start™
Gear ratio2.15 (28/13)


Transom heightL:516mm X:643mm
Weight with propellerF115BETL: 173.0 kg, F115BETX: 177.0 kg, FL115BETX: 177.0 kg
Fuel tank capacity
Oil pan capacity3.2 litres

Additional features

ControlRemote Control
Trim & Tilt methodPower Trim & Tilt
Light coil / Alternator Output12V – 35A with rectifier/regulator
Tilt limitter (only for remote control specs)Optional
Engine immobilizerYCOP optional
Counter Rotation ModelAvailable (ETX)
Shallow Water DriveStandard
Digital Network Gauge II (6Y9/CL7)
Digital Network Gauge (6Y8/6YC)Optional
Variable Trolling SpeedWith DN Gauges or m-f tiller handle
Dual Battery Charging System
Shift Dampener System (SDS)Optional
RemarkThe kW data in this sheet is based on the ICOMIA 28 standard, measured at the prop shaft,