4hp

4hp

  • Type

    25 - 2.5HP

  • Disp.

    139cc

  • Weight*

    lbs

  • Power

    4hp
*Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil, and propeller (except models 25 hp and under, which include a standard propeller). I'm Interested In this Outboard

4hp Specs

Engine Type: 1 cyl.

Displacement: 139cc

Bore x Stroke: 62 x 46mm (2.44 x 1.81in)

Prop Shaft Horsepower: 4hp at 4500 RPM

Full Throttle RPM Range: 4000 - 5000 RPM

Alternator Output at W.O.T.: 6 Amp

Compression Ratio: 8.9:1

Fuel Induction System: Carb

Weight*: 27 kg (59 lbs) - 28 kg (61 lbs)

Recommended Fuel: Octane 87

Recommended Engine Oil: Yamalube® 4M (See owner's manual)

Recommended Fuel Filtration: N/A

Warranty: Limited 3-year Pleasure, 3-year Government, 1-Year Commercial

About the 4hp

The XTO Offshore® is the result of years of collaboration with top boat designers, and has been built from the ground up to provide the ultimate in power and efficiency offshore. With impressive stats such as the highest compression ratio on the water, industry firsts such as an electric steering system, and engineering touches such as iridium spark plugs and quad thermostats, it’s purpose-built for extreme power, durability, control and reliability.

  • Available in signature Yamaha gray or new pearlescent white

  • 425 hp on less-expensive 89-octane gasoline

  • Available with Helm Master® with SetPoint™

  • Impressive 5-year Limited Warranty, for pleasure use

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