2027 Yamaha Four Stroke Portable Heavy Load F25SWHC

Meet the 2027 Yamaha F25SWHC Four Stroke portable outboard in classic Yamaha Gray—a compact, hard-working engine-only option that’s ready to turn a wide range of small hulls into confident, go-anywhere rigs.
With 25 bhp (18.7 kW) at 5500 RPM from a 432 cc in-line 2-cylinder platform, this four-stroke is a sweet spot for lightweight fishing skiffs, tenders, utility jon boats, and other small, 15-inch transom setups. The power delivery feels purposeful and “meaty” thanks to the efficient SOHC 4-valve design (2 valves per cylinder) and a 9.3:1 compression ratio—great for getting a load moving without needing to constantly live at wide-open throttle.
Cruising is where this engine really shines for day-to-day boating. Fuel injection paired with regular gas means easy starts and clean, consistent running—exactly what you want when you’re idling through no-wake zones, hopping between spots, or running a steady mid-range pace back to the dock. Add the 2.00:1 gear ratio turning a propeller, and you get the kind of practical thrust that helps a small hull feel composed with gear aboard.
It’s also built for real marine life. Water (open loop) cooling keeps temps in check, and it’s listed as salt water capable—ideal for coastal tenders, bay boats on a kicker-style setup, or any operator who racks up hours in brackish conditions. For peace of mind on the water, Yamaha includes a visual/audible engine alert system plus emergency RPM reduction, helping you stay aware and protected if something needs attention.
As a true portable, it stays manageable at 126 lbs dry, features a pull starter, and keeps control simple with tiller steering and manual trim with 4 trim positions—handy for dialing in running angle across changing loads and chop. There’s also a 16-amp alternator to support charging needs while you’re underway.
This listing is for a standalone marine engine only (not a complete boat). Ask us about warranty coverage details for this new Yamaha outboard and how it matches your hull and transom height.

Color Options

Pricing

Engine

Drive Line

Steering

Meet the 2027 Yamaha F25SWHC Four Stroke portable outboard in classic Yamaha Gray—a compact, hard-working engine-only option that’s ready to turn a wide range of small hulls into confident, go-anywhere rigs.
With 25 bhp (18.7 kW) at 5500 RPM from a 432 cc in-line 2-cylinder platform, this four-stroke is a sweet spot for lightweight fishing skiffs, tenders, utility jon boats, and other small, 15-inch transom setups. The power delivery feels purposeful and “meaty” thanks to the efficient SOHC 4-valve design (2 valves per cylinder) and a 9.3:1 compression ratio—great for getting a load moving without needing to constantly live at wide-open throttle.
Cruising is where this engine really shines for day-to-day boating. Fuel injection paired with regular gas means easy starts and clean, consistent running—exactly what you want when you’re idling through no-wake zones, hopping between spots, or running a steady mid-range pace back to the dock. Add the 2.00:1 gear ratio turning a propeller, and you get the kind of practical thrust that helps a small hull feel composed with gear aboard.
It’s also built for real marine life. Water (open loop) cooling keeps temps in check, and it’s listed as salt water capable—ideal for coastal tenders, bay boats on a kicker-style setup, or any operator who racks up hours in brackish conditions. For peace of mind on the water, Yamaha includes a visual/audible engine alert system plus emergency RPM reduction, helping you stay aware and protected if something needs attention.
As a true portable, it stays manageable at 126 lbs dry, features a pull starter, and keeps control simple with tiller steering and manual trim with 4 trim positions—handy for dialing in running angle across changing loads and chop. There’s also a 16-amp alternator to support charging needs while you’re underway.
This listing is for a standalone marine engine only (not a complete boat). Ask us about warranty coverage details for this new Yamaha outboard and how it matches your hull and transom height.

Color Options

Pricing

Engine

Drive Line

Steering