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100hp

Key Features

Features Gallery
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    16-valve SOHC engine layout

    The SOHC (Single Overhead Camshaft) layout, with its large cylinder capacity and 16-valve format, results in optimum valve actuation, delivering improved acceleration and performance. Yamaha's latest 4-stroke technology combines this with advanced intake and exhaust system designs – and our unique multi-point Electronic Fuel Injection (EFI).

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    Large single throttle valve

    This innovative system controls the flow of air to all four cylinders, pulse-tuning it before it reaches the injectors of the EFI system. The air is therefore delivered with ultimate precision, according to the demands of the driver and the combustion conditions.

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    Digital Network Gauges

    The 100hp is compatible with Yamaha’s Digital Network Gauges (6Y8/6YC), 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

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    Easy control of engine RPM for trolling (with option)

    Another feature of the Digital Network System option is the handy button on the tachometer which gives you instant control of the engine RPM - making it simple to adjust the engine speed in convenient steps of 50 RPM between 550 and 1000 RPM. Smooth, relaxed cruising is the reward.

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    Wide Range Power Trim & Tilt

    Discover the versatility and power of a Yamaha engine. Quick response, via push-button control, makes trim and tilt adjustments swift, smooth and easy. The confidence-giving handling control provided by the wide trim range includes negative trim settings to improve acceleration and help bring the boat onto the plane quickly.

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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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    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.

Technical Specifications

Download Factsheet
  • Engine
    Engine type
    4-stroke
    Displacement
    1,832 cm³
    No. of cylinders/Configuration
    4/In-line, 16-valve, SOHC
    Bore x stroke
    81.0 mm x 88.9 mm
    Prop shaft output at mid range
    73.5 / 5,500 rpm
    Full Throttle Operating Range
    5,000 - 6,000 rpm
    Lubrication system
    Wet sump
    Fuel Induction System
    EFI
    Ignition / advance system
    TCI
    Starter system
    Electric with Prime Start™
    Gear ratio
    2.15 (28:13)
  • Dimensions
    Transom height
    L516X:643mm
    Fuel tank capacity
    -
    Oil pan capacity
    3.2litres
    Weight without propeller
    162kg - 166kg
  • Additional Features
    Control
    Remote Control
    Trim & Tilt method
    Power Trim & Tilt
    Light coil / Alternator Output
    12V -35Awith rectifier/regulator
    Engine immobilizer
    YCOP optional
    Propeller
    Optional
    Variable Trolling Speed
    With DN Gauges or m-f tiller handle
    Shift Dampener System (SDS)
    Optional
    Remark
    The kW data in this sheet is based on the ICOMIA 28 standard, measured at the prop shaft