Meet our new portable. Even lighter. Even tougher.

The specification now includes two resting pads (side and rear), improved carry handles, battery-less EFI and full compatibility with our Digital Network Gauges.

With its single-lever steering friction adjustment, new wide-span motor mount, high-output alternator and options of Variable Trolling Speed, Y-COP Security and Wide Range Power Trim & Tilt, the F25 is the natural choice.

Specifications:

Engine type 4-stroke
Displacement (cm³) 432
No. of cylinders 2/in-line
Configuration SOHC
Bore x stroke 65.0 x 65.1
Prop shaft output at mid range (kW/rpm) 18.4 / 6000
Full Throttle Operating Range (rpm) 5000 - 6000
Lubrication system Wet sump
Ignition CDI
Starter system Electric/Manual, Manual (MH), Electric (E, ET) with prime start™
Gear ratio 2.08 (27:13)
Transom height (mm) S:424 L:551
Weight with propeller (kg) GMHS:57, GMHL:59, GES:56, GEL:58, GETL:64, GWHS:60, GWHL:62
Fuel tank capacity (l) 25
Oil tank capacity (l) 1.1
Control Tiller handle; Remote Control
Alternator 12V - 16A
Propeller Included (MH, WH); Option (E, ET)
Digital Network Gauge II (CL7) Option
Variable Trolling Speed With DN Gauges or m-f tiller handle
Remark The kW data in this sheet is based on the ICOMIA 28 standard, measured at the prop shaft

At a glance

  • At a glance
  • 25% lighter - unique power-to-weight performance
  • New tough and solid one-piece top cowling
  • New battery-less EFI system for easy starting
  • Manual, electric and manual/electric start options
  • VTS slower-than-normal idle speed (option on r/c)
  • Compatible with Yamaha Digital Network Gauges
  • VTS (Variable Trolling Speed) option on r/c
  • Wide Range Power Trim & Tilt option
  • Exclusive Y-COP immobiliser security available
  • Multi-function tiller handle option
  • Single-lever steering friction (Tiller model)
  • High-output alternator for extra starting power

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Other Portables outboard engines by Yamaha

F2.5B
Engine type 4-stroke Displacement (cm³) 72 No. of cylinders 1 Configuration OHV
Bore x stroke 54.0 x 31.5 Prop shaft output at mid range (kW/rpm) 1.8 / 5500 Full Throttle Operating Range (rpm) 5250 - 5750 Lubrication system Splash
Fuel Induction System 1-Carb Ignition TCI Starter system Manual Gear ratio 2.08 (27:13)
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F4B
Engine type 4-stroke Displacement (cm³) 139 No. of cylinders 1 Configuration OHV
Bore x stroke 62.0 x 46.0 Prop shaft output at mid range (kW/rpm) 2.9 / 4500 Full Throttle Operating Range (rpm) 4000 - 5000 Lubrication system Wet sump
Fuel Induction System 1-Carb Ignition CDI Starter system Manual Gear ratio 2.08 (27:13)
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F5A
Engine type 4-stroke Displacement (cm³) 139 No. of cylinders 1 Configuration OHV
Bore x stroke 62.0 x 46.0 Prop shaft output at mid range (kW/rpm) 3.7 / 5000 Full Throttle Operating Range (rpm) 4500 - 5500 Lubrication system Wet sump
Fuel Induction System 1-Carb Ignition CDI Starter system Manual Gear ratio 2.08 (27:13)
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F6C
Engine type 4-stroke Displacement (cm³) 139 No. of cylinders 1 Configuration OHV
Bore x stroke 62.0 x 46.0 Prop shaft output at mid range (kW/rpm) 4.4 / 5000 Full Throttle Operating Range (rpm) 4500 - 5500 Lubrication system Wet sump
Fuel Induction System 1-Carb Ignition CDI Starter system Manual Gear ratio 2.08 (27:13)
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F8F
Engine type 4-stroke Displacement (cm³) 212 No. of cylinders 2/in-line Configuration SOHC
Bore x stroke 56,0 x 43,0 Prop shaft output at mid range (kW/rpm) 5.9 / 5500 Full Throttle Operating Range (rpm) 5000 - 6000 Lubrication system Wet sump
Fuel Induction System 1-Carb Ignition CDI Starter system Manual Gear ratio 2.08 (27:13)
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F9.9J
Engine type 4-stroke Displacement (cm³) 212 No. of cylinders 2/in-line Configuration SOHC
Bore x stroke 56.0 x 43.0 Prop shaft output at mid range (kW/rpm) 7.3 / 5500 Full Throttle Operating Range (rpm) 5000 - 6000 Lubrication system Wet sump
Fuel Induction System 1-Carb Ignition CDI Starter system Manual (MH), Electric (E) Gear ratio 2.08 (27:13)
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F15C
Engine type 4-stroke Displacement (cm³) 362 No. of cylinders 2/in-line Configuration SOHC
Bore x stroke 63.0 x 58.1 Prop shaft output at mid range (kW/rpm) 11.0 / 5500 Full Throttle Operating Range (rpm) 5000 - 6000 Lubrication system Wet sump
Fuel Induction System 1-Carb Ignition CDI Starter system Electric (E, EH, EP), Manual (MH) with prime start™ Gear ratio 2.08 (27:13)
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F20B
Engine type 4-stroke Displacement (cm³) 362 No. of cylinders 2/in-line Configuration SOHC
Bore x stroke 63.0 x 58.1 Prop shaft output at mid range (kW/rpm) 14.7 / 5500 Full Throttle Operating Range (rpm) 5000 - 6000 Lubrication system Wet sump
Fuel Induction System 1-Carb Ignition CDI Starter system Electric (E, EH, EP), Manual (MH) with prime start™ Gear ratio 2.08 (27:13)
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F20G
Engine type 4-stroke Displacement (cm³) 432 No. of cylinders 2/in-line Configuration SOHC
Bore x stroke 65.0 x 65.1 Prop shaft output at mid range (kW/rpm) 14.7 / 5500 Full Throttle Operating Range (rpm) 5000 - 6000 Lubrication system Wet sump
Fuel Induction System EFI Ignition CDI Starter system Electric/ Manual, Manual (MH), Electric (E, EP) Gear ratio 2.08 (27:13)
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FT9.9L
Engine type 4-stroke Displacement (cm³) 212 No. of cylinders 2/in-line Configuration SOHC
Bore x stroke 56.0 x 43.0 Prop shaft output at mid range (kW/rpm) 7.3 / 5500 Full Throttle Operating Range (rpm) 5000 - 6000 Lubrication system Wet sump
Fuel Induction System 1-Carb Ignition CDI Starter system Manual (MH), Electric (E, EP) Gear ratio 2.92 (38:13)
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FT25F
Engine type 4-stroke Displacement (cm³) 498 No. of cylinders 2/in-line Configuration SOHC
Bore x stroke 65.0 x 75.0 Prop shaft output at mid range (kW/rpm) 18.4 / 5.500 Full Throttle Operating Range (rpm) 5000 - 6000 Lubrication system Wet sump
Fuel Induction System 1-Carb Ignition CDI Starter system Electric Gear ratio 2.42 (29:12)
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