432cc Twin 25 HP

432cc Twin 25 HP

Outboard
Overview

Our 432-cc 25-hp portable outboard sports a new, streamlined, portable design and class-leading power-to-weight. In fact, it’s the lightest 25-hp outboard on the water—two-stroke or four-stroke. While its streamlined design is 25 percent lighter, it still packs exciting features like battery-less EFI. Pull-start models can now take advantage of this feature, plus the system is designed with an automatic decompression device to require even less effort for manual starting.

 

  • Available for remote mechanical or tiller-handle control
  • Only 126 pounds (15” shaft model)
  • Available in 15” and 20” shaft lengths
  • Powerful 16-amp alternator
  • Variable Trolling RPM Switch (VTS®) is standard when equipped with new factory-equipped tiller handle or optional Multi-Function Tiller Handle, a Command Link® tachometer or dash-mounted VTS switch
Engine Type2 cyl
Displacement432cc
Bore x Stroke65 x 65.1mm / (2.56 x 2.56 in)
Prop Shaft Horsepower25 hp at 5500 rpm
Full Throttle RPM Range5000 - 6000
Alternator Output at W.O.T.16 amp
Compression Ratio9.3:1
Fuel Induction SystemEFI
Weight †57kg (126 lbs) - 65kg (143 lbs)
Recommended FuelOctane 87
Recommended Engine OilYamalube® 4M (See owner's manual)
Recommended Fuel FiltrationYamaha 10-Micron Fuel/Water Separating Filter (external)
C.A.R.B. Rating2-Star
ExhaustThrough Propeller
Intake4
IgnitionCDI Microcomputer
Spark PlugDPR6EB-9
Alternator Output16 Amp
Starting SystemElectric & Manual
LubricationWet Sump
Engine Oil Capacity1.1L/1.0L
Recommended CoolingThermostatic Control
Ethanol Blend Limit10% Maximum
Gear Ratio2.00:1
Gear ShiftForward, Neutral, Reverse
Shaft Length15" - 20"
Degree of Tilt62° - 63°
Degree of Trim-3° through +16°
Dry Weight15" shaft / 57kg (126 lbs), 20" shaft / 65kg (143 lbs)
Mounting CentersN/A
Steering Angle (maximum)45° from center, either direction
WarrantyLimited 3-year Pleasure, 3-year Government, 1-Year Commercial

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