Portable Four Strokes 25-15
Portable Four Strokes
Mechanical or Tiller: 25hp, 20hp
Tiller: 15hp
Yamaha’s 25–15 HP portable four-stroke outboards are engineered for boaters who need reliable, lightweight power in a compact package. Designed for jon boats, inflatables, skiffs, and small pontoons, these engines deliver quiet performance, easy starting, and efficient fuel consumption. Featuring user-friendly tiller controls, battery-less EFI, and a streamlined design, the 25–15 HP lineup offers the perfect balance of portability and Yamaha dependability—making them ideal for anglers, explorers, and weekend cruisers alike.
Lightest-in-Class Power
Yamaha’s F25 is still the lightest 25-horsepower outboard on the water—two stroke or four stroke. Its portable design and class-leading power-to-weight mean 25 horses can boldly go where they’ve never gone before. Jons. 14-foot aluminum fishing boats. The bed of your truck.
Meet the Line-Up
Portable 25hp
Our 432-cc 25-hp portable outboard features a streamlined, portable design and class-leading power-to-weight. While it’s 25 percent lighter than its previous design, 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.
- Only 126 pounds (15” shaft model)
- Available in 15” and 20” shaft lengths and in a High-Thrust design (T25)
- Powerful 16-amp alternator
- Variable Trolling RPM Switch (VTS®) accessible depending on rigging
- Select models, including 15-inch shafts, feature a shorter tiller with Power Trim & Tilt and a tilt-up feature for ease in small spaces
Portable 20hp
Our 362-cc 20-hp portable outboard is built on the same award-winning platform as the F25. Its SOHC in-line design and streamlined intake manifold delivers solid power. Not only that, but it’s one of the most fuel efficient in its class. At just 126 pounds, it’s suitable for lightweight craft such as aluminum fishing boats, tenders and inflatables.
- Only 126 pounds (15” shaft model)
- Available in 15” and 20” shaft lengths
- Powerful 16-amp alternator
Portable 15hp
Our 362-cc 15-hp portable features a SOHC in-line, two-cylinder design. Its single carburetor and CDI Microcomputer Ignition System make it one of the most fuel efficient in its class. At just 111 pounds, it’s suitable for lightweight craft such as aluminum fishing boats, tenders and inflatables.
- Only 111 pounds (15” shaft model)
- Available in 15” and 20” shaft lengths
- Powerful 10-amp alternator
