2027 Yamaha Four Stroke Portable Light F4SMHA
Description
Meet the 2027 Yamaha F4SMHA—a Yamaha Gray four-stroke portable outboard that’s all about simple fun and dependable push for the kinds of small hulls that live for quick getaways. This is an engine-only listing (not a complete boat), perfect for powering a compact tender, jon boat, small aluminum fishing skiff, or an inflatable that needs clean, predictable thrust without the bulk.
With 4 bhp (3 kW) at 4500 RPM from a single-cylinder, 139 cc four-stroke, the F4SMHA delivers the kind of low-end torque and steady pull that small, lightweight hulls respond to best—getting you moving smoothly and keeping you on plane where conditions and load allow. The 2.08:1 gear ratio helps translate that power into practical prop bite for confident acceleration and controlled slow-speed handling around docks and ramps.
Because it’s a four-stroke running on regular gas, it’s built for comfortable cruising and sensible fuel use while you’re exploring shorelines or running from the mothership to the marina. A carbureted setup keeps operation straightforward, and open-loop water cooling helps maintain stable running temps on long idle zones or steady runs.
This model is made to be hands-on and portable: a pull-start design, tiller steering, and a manual trim system with five trim positions let you dial in your running attitude for different loads, chop, and shallow approaches. The 15-inch shaft fits many transoms in the portable-class sweet spot, and at a 60 lb dry weight (27 kg) it’s manageable for trailering, storage, and swapping between boats.
For brackish bays and coastal use, it’s also salt water capable, so it’s ready for the environments small boats often call home. Plus, with a 6-amp alternator, you’ve got output available for basic charging needs while underway.
If you’re looking for a lightweight, proven Yamaha portable that matches perfectly with small hulls and big weekend plans, the Yamaha Gray F4SMHA is ready to hang on your transom and get to work. Warranty coverage varies by program—ask our marine team for the current Yamaha warranty details on this new outboard.
Color Options
Pricing
Engine
Drive Line
Steering
Meet the 2027 Yamaha F4SMHA—a Yamaha Gray four-stroke portable outboard that’s all about simple fun and dependable push for the kinds of small hulls that live for quick getaways. This is an engine-only listing (not a complete boat), perfect for powering a compact tender, jon boat, small aluminum fishing skiff, or an inflatable that needs clean, predictable thrust without the bulk.
With 4 bhp (3 kW) at 4500 RPM from a single-cylinder, 139 cc four-stroke, the F4SMHA delivers the kind of low-end torque and steady pull that small, lightweight hulls respond to best—getting you moving smoothly and keeping you on plane where conditions and load allow. The 2.08:1 gear ratio helps translate that power into practical prop bite for confident acceleration and controlled slow-speed handling around docks and ramps.
Because it’s a four-stroke running on regular gas, it’s built for comfortable cruising and sensible fuel use while you’re exploring shorelines or running from the mothership to the marina. A carbureted setup keeps operation straightforward, and open-loop water cooling helps maintain stable running temps on long idle zones or steady runs.
This model is made to be hands-on and portable: a pull-start design, tiller steering, and a manual trim system with five trim positions let you dial in your running attitude for different loads, chop, and shallow approaches. The 15-inch shaft fits many transoms in the portable-class sweet spot, and at a 60 lb dry weight (27 kg) it’s manageable for trailering, storage, and swapping between boats.
For brackish bays and coastal use, it’s also salt water capable, so it’s ready for the environments small boats often call home. Plus, with a 6-amp alternator, you’ve got output available for basic charging needs while underway.
If you’re looking for a lightweight, proven Yamaha portable that matches perfectly with small hulls and big weekend plans, the Yamaha Gray F4SMHA is ready to hang on your transom and get to work. Warranty coverage varies by program—ask our marine team for the current Yamaha warranty details on this new outboard.
Color Options
Pricing
Engine
Drive Line
Steering
Specifications
| Manufacturer | Yamaha |
| Model | Four Stroke Portable Light F4SMHA |
| Year | 2027 |
| Condition | New |
| Engine Type | Single-Cylinder |
| Bore x Stroke | Bore: 2.44 in. (62 mm); Stroke: 1.81 in. (46 mm) |
| Displacement | 8.5 cu. in. (139 cc) |
| Starting | Pull |
| Trim Method | Manual |
| Propshaft Horsepower | 4 bhp; 3 kW |
| Fuel Induction | Carburetor |
| Alternator | 6 |
| Cooling | Water (Open Loop) |
| Steering | Tiller |
| Warranty | 36 |