Yamaha F25 Portable Outboard Motor 2025 – 25HP Four Stroke EFI

Yamaha F25 2025: Flagship Portable Power, Featherweight Class

The 2025 Yamaha F25 carries the crown as the lightest 25-horsepower outboard on the water — 25% lighter than the generation it replaced. Its 432cc SOHC in-line twin uses battery-less electronic fuel injection, so even pull-start models (aided by automatic decompression) enjoy instant EFI starts and clean running with zero battery weight. Configure it your way: pull or electric start, tiller or remote control, and select 15″ shaft models with Power Trim & Tilt and a tilt-up feature. Offered in pearlescent white, matte brown, or Yamaha gray, it heads the 25HP outboard class for portability-minded boaters.

Key Features (2025 Model Year)

• Battery-less EFI — fuel injection with no battery required on pull-start models
• Lightest 25HP on the water — 25% lighter than the previous design
• 432cc SOHC in-line twin four stroke — smooth, strong, efficient
• Pull or electric start; tiller or remote
• Power Trim & Tilt on select 15″ models
• Three factory colors — pearlescent white, matte brown, gray

Specifications

• Engine Type: 2-cylinder, SOHC in-line four stroke
• Displacement: 432cc
• Horsepower: 25 HP
• Fuel Induction: Battery-less Electronic Fuel Injection (EFI)
• Starting: Manual (with auto decompression) or Electric
• Controls: Tiller or remote
• Trim/Tilt: Manual; Power Trim & Tilt on select 15″ models
• Shaft Length: 15″ (S) / 20″ (L)
• Fuel: Unleaded gasoline, minimum 87 octane

Benefits

Fuel injection eliminates choke fiddling and carburetor storage headaches while improving economy; the class-lightest weight opens transoms, brackets, and repowers that heavier 25s rule out. It’s the most capable engine you can still realistically handle without machinery.

Applications

15–18 ft aluminum fishing boats, jon boats, flats skiffs, larger RIBs, pontoons, workboats, and weight-sensitive repowers. Lower cost: Yamaha F20 2025.

Compare Model Years

See the F25 2024 and F25 2026, all Yamaha Outboards, or the Yamaha brand guide.

Frequently Asked Questions

What does the 2025 Yamaha F25 cost?

$5,600, in stock.

Does the 2025 F25 have EFI?

Yes — battery-less electronic fuel injection, functional even on pull-start models with no battery installed.

Tiller or remote?

Both configurations are offered, plus pull or electric start and optional Power Trim & Tilt on select 15″ models.

Why is light weight such a big deal at 25HP?

It expands which transoms and brackets can safely carry a 25, eases seasonal removal, and improves small-boat trim and handling.