4hp Promotions


Model Description


Easy-to-carry – and so easy to enjoy

This attractive engine, with its smart, stylish looks, offers all the power you need to hit the water with confidence. The 4hp is also convenient to store – and so light and easy to handle that carrying one between the shore and the deck of your sailing boat really is a breeze.

The compact size, large carrying handle and built-in fuel tank all enhance its portability – and start-up is easy with Yamaha’s CDI Ignition System. Low fuel consumption, simple controls and low noise and vibration levels, along with Yamaha reliability, come as standard.

So for families to get on the water easily – or for a yacht owner wanting a handy auxiliary – the 4hp offers the smartest solution.

At a glance

  • Shallow Water Drive for cruising close inshore
  • Unique 3-position oil-leak-free storage system
  • 180º steering for comfortable manoeuvring
  • Large F-N-R (Forward-Neutral-Reverse) shift lever
  • Built-in 1.1L fuel tank
  • 2-way change-over system for portable tank option
  • Lighting coil option offers 12V 6A power supply
  • Convenient auxiliary priming pump in the cowling
  • Auto decompression for easier starting
  • Stylish design with a smart grey top cowling
  • Latest-generation Yamaha styling and graphics
  • Lightweight and portable with a large carry handle
  • Model Specification


    • Engine

      Engine Type

      4-stroke

      Displacement

      139 cm³

      No. of cylinders/configuration

      1, OHV

      Bore x stroke

      62.0 mm x 46.0 mm

      Prop shaft output at mid range

      2.9 / 4,500 rpm

      Full throttle operating range

      4,000 - 5,000 rpm

      Lubrication system

      Wet sump

      Carburettors

      1-Carb

      Ignition / advance system

      CDI

      Starter system

      Manual

      Gear ratio

      2.08 (27:13)

      Fuel tank capacity

      1.1litres(Built-in fuel tank) or optional seperate fuel tank

      Steering

      Throttle and shift controls

      Trim & tilt method

      Lighting Coil / Alternator

      12V -6A*optional

      Propeller

      Included

      Max Thrust (kg)

      Amp Draw

      Voltage

      Control

      Valves

      Cam

    • Dimensions

      Recommended boat transom height

      S: 431 mm L: 558 mm

      Weight without propeller

      Oil pan capacity

      0.6litres

      Weight

      7

      Shaft Length

    • Other

      Warranty

      2 Year