Yamaha Portables 25 to 15 hp · Virginia Beach
Yamaha F25 outboard: specs, rigging and repower in Virginia Beach.
The F25 is a 432 cc two-cylinder portable at 126 lb with a 15-inch shaft, and Yamaha's page says it is "25 percent lighter than its previous design." Its fuel injection runs without a battery, even on pull-start models, and automatic decompression eases manual starting. Yamaha lists 15- and 20-inch shafts, and select models have a shorter tiller with power trim and tilt.
- Horsepower
- 25 hp
- Engine type
- 2 cyl
- Displacement
- 432cc
- Shaft length
- 15" - 20"
- Weight †
- 57kg (126 lbs) - 65kg (143 lbs)
Specifications
Yamaha F25
specs, as Yamaha lists them.
Specs and features: Yamaha, read from yamahaoutboards.com and Yamaha's Engine Comparison tool on 2026-10-05. Yamaha can change a model by model year; we confirm the exact engine when we quote.
| Weight † | 57kg (126 lbs) - 65kg (143 lbs) |
|---|---|
| Full Throttle RPM Range | 5000 - 6000 |
| Fuel Induction System | EFI |
| Recommended Engine Oil | Yamalube® 4M (See owner's manual) |
| Engine Type | 2 cyl |
| Displacement | 432cc |
| Bore x Stroke | 65 x 65.1mm / (2.56 x 2.56 in) |
| Prop Shaft Horsepower | 25 hp at 5500 rpm |
| Alternator Output at W.O.T. | 16 amp |
| Compression Ratio | 9.3:1 |
| Recommended Fuel | Octane 87 |
| Recommended Fuel Filtration | Yamaha 10-Micron Fuel/Water Separating Filter (external) |
| C.A.R.B. Rating | 2-Star |
| Exhaust | Through Propeller |
| Intake | 4 |
| Ignition | CDI Microcomputer |
| Spark Plug | DPR6EB-9 |
| Starting System | Electric & Manual |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 1.1L/1.0L |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | 2.00:1 |
| Gear Shift | Forward, Neutral, Reverse |
| Shaft Length | 15" - 20" |
| Degree of Tilt | 62° - 63° |
| Degree of Trim | -3° through +16° |
| Mounting Centers | N/A |
| Steering Angle (maximum) | 45° from center, either direction |
| Warranty | Limited 3-year Pleasure, 3-year Government, 1-Year Commercial |
† 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). All Jet model weights include the jet pump assembly (weight estimated).
Compared
How the F25 compares
with the T25, F20, F30.
From Yamaha's spec tables; weights are the lightest Yamaha lists, valvetrain is from its dealer spec signs.
Same 25 hp class, Yamaha High Thrust
F25 vs T25
- Weight: F25 15 lb lighter at the lightest weight Yamaha lists (126 lb vs 141 lb).
- Gear ratio: F25 2.00:1; T25 2.08:1.
- Shafts: F25 15 and 20-inch; T25 20 and 25-inch.
Same on both: 25 hp at 5500 rpm rated output, 432cc displacement, 16-amp alternator, 87 octane.
Same family
F25 vs F20
- Rated output: F25 25 hp at 5500 rpm; F20 20 hp @ 5500 rpm.
- Displacement: F25 432cc; F20 362 cc.
Same on both: 126 lb lightest listed weight, 2.00:1 gear ratio, 16-amp alternator, 15 and 20-inch shaft, 87 octane.
Next size up
F25 vs F30
- Rated output: F25 25 hp at 5500 rpm; F30 30hp at 5500rpm.
- Displacement: F25 432cc; F30 747cc.
- Weight: F25 88 lb lighter at the lightest weight Yamaha lists (126 lb vs 214 lb).
- Alternator: F25 16 amp; F30 17 amp.
- Shafts: F25 15 and 20-inch; F30 20-inch.
Same on both: 2.00:1 gear ratio, 87 octane.
Rigging
Controls, gauges
and Helm Master EX.
Controls
- Mechanical Controls (compatible)
- Multi-Function Tiller Handle (compatible)
- Helm Master® EX (not available)
- Command Link Plus Digital Controls (not available)
Gauges
- Command Link and Analog Gauges (compatible)
- Command Link Plus Display (not available)
Yamaha lists Helm Master EX as not available for the F25.
F25 model codes
| Model code | Controls | Color |
|---|---|---|
| F25SMHC | Tiller handle | Gray |
| F25LMHC | Tiller handle | Gray |
| F25SWHC | Tiller handle | Gray |
| F25SWHC3 | Tiller handle | Matte Brown |
| F25LWHC | Tiller handle | Gray |
| F25LWHC3 | Tiller handle | Matte Brown |
| F25SWTHC | Tiller handle | Gray |
| F25LWTHC | Tiller handle | Gray |
| F25SWTHC2 | Tiller handle | Pearl White |
| F25LWTHC2 | Tiller handle | Pearl White |
| F25SWC | Remote mechanical | Gray |
| F25LWC | Remote mechanical | Gray |
| F25SC | Remote mechanical | Gray |
| F25LC | Remote mechanical | Gray |
| F25SWTC | Remote mechanical | Gray |
| F25LWTC | Remote mechanical | Gray |
Model codes from Yamaha's current model-code list. Ask us which code fits your boat; we confirm it when we quote.
Features
What's built into
the F25.
- 432 cc 25 hp portable, 25 percent lighter than its previous design.
- Battery-free EFI, including on pull-start models.
- Automatic decompression reduces manual starting effort.
- 126 lb with 15-inch shaft; 15- and 20-inch shafts; 16-amp alternator.
- Select models have a shorter tiller with power trim and tilt.
- Colors: Yamaha gray, pearlescent white and matte brown (select models).
- CDI microcomputer ignition adjusts timing to throttle position, speed and conditions.
- Pressurized wet-sump lubrication.
- Warning system covers overheat, low oil pressure (2000 RPM limit), over-rev and start-in-gear.
- Phaze Five anti-corrosion paint over YDC-30 alloy.
- SOHC design with two valves per cylinder.
- Balanced crankshaft and labyrinth exhaust for smooth running.
- F20 and F15 add an intake silencer and an acceleration pump.
- 45 degrees of steering in each direction.
- Freshwater flush device works without running the engine.
- Carry handles, resting pads and oil retention allow on-side storage; folding tiller optional.
Repower
Repowering with the F25
at Coastal Marine.
Coastal Marine is an Elite Yamaha dealer and an authorized Yamaha Repower Center on Shore Drive in Virginia Beach. A repower with the F25 takes the old or worn-out outboard off a sound hull, of any make, and puts the new Yamaha on, with the controls, gauges and rigging the new setup needs. Warranty work on the Yamaha power we install is authorized in-house.
We don't post engine prices. Tell us the boat, what's on the transom now and roughly how many hours it has, and we'll quote the F25 for it. Financing is available on repowers through Yamaha Financial Services.
F25 repower fit
- Shaft lengths
- 15 and 20-inchYamaha spec table
- Weight †
- 126 to 143 lbYamaha spec table, lightest to heaviest listed
- Control types
- tiller-handle (F25SMHC, F25LMHC, F25SWHC, F25SWHC3, F25LWHC, F25LWHC3, F25SWTHC, F25LWTHC, F25SWTHC2, F25LWTHC2); remote mechanical (F25SWC, F25LWC, F25SC, F25LC, F25SWTC, F25LWTC)Yamaha model-code list
- Most popular propeller
- Aluminum, 11.25” pitch (Standard)Yamaha dealer spec sign, 2026-09-01
The Portables 25 to 15 hp family
Other engines
in this family.
Common questions
Yamaha F25
questions, answered.
Get a quote
on new Yamaha power.
Tell us the boat, the engines on it now and roughly the hours, and we'll quote the F25 for it. We answer same business day.