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Key Features

Features Gallery
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    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 115hp'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.

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    Compact, lightweight design - ideal for re-powering

    The versatile 115hp 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.

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    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.

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    Digital Network System option - clear, accurate information

    The 115hp 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.

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    Variable Trolling RPM Control - no more speeding worries

    A very relaxing and reliable system, which is standard on the 115hp. Simply set and hold the low speed rpm (between 600 & 1000) in 50 rpm steps, using a button on the tachometer - or on the multi-function tiller handle. This advanced system resets automatically when the throttle is moved again.

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    35 Amp High Output alternator

    A special High Output alternator system is fitted as standard on the 115hp, 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.

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    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 115hp is offered with a counter-rotating propeller to fit alongside the standard model, giving the driver control with ‘neutral helm' at any speed.

Technical Specifications

Download Factsheet
  • Engine
    Engine type
    1,832 cm³
    No. of cylinders/Configuration
    4/In-line, 16-valve, DOHC
    Bore x stroke
    81.0 mm x 88.9 mm
    Prop shaft output at mid range
    84.6 / 5,800 rpm
    Full Throttle Operating Range
    5,300 - 6,300 rpm
    Lubrication system
    Wet sump
    Fuel Induction System
    Ignition / advance system
    Starter system
    Electric with Prime Start™
    Gear ratio
    2.15 (28:13)
  • Dimensions
    Transom height
    Fuel tank capacity
    Oil pan capacity
    Weight without propeller
    173kg - 177kg
  • Additional Features
    Remote Control
    Trim & Tilt method
    Power Trim & Tilt
    Light coil / Alternator Output
    12V -35Awith rectifier/regulator
    Engine immobilizer
    YCOP optional
    Counter Rotation Model
    Available (ETX)
    Variable Trolling Speed
    With DN Gauges or m-f tiller handle
    Shift Dampener System (SDS)
    The kW data in this sheet is based on the ICOMIA 28 standard, measured at the prop shaft