Yamaha F4B four-stroke outboard provides practical propulsion for small boats, inflatable tenders, and service vessels operating in inland or coastal waters. This engine is widely selected by boaters who need dependable Yamaha performance in a compact horsepower class.
Our global supply network maintains available inventory of Yamaha F4B engines ready for distribution. We assist private buyers, marine workshops, boat builders, and dealers, delivering engines from single purchases to multi-unit supply programs. Contact us to confirm available Yamaha F4B outboards and reserve units currently positioned within our inventory system.
Product Media
Specifications
| Engine Type | OHV, 1-cylinder |
|---|---|
| Displacement [cm3] | 139 |
| Bore x Stroke [mm] | 62.0 x 46.0 |
| Max. Prop Shaft Output [kW (ps)] @r/min | 2.9 (4) @4500 |
| Fuel Induction System | Carburetor |
| Engine Transom Height[mm (inch)] | S: 435 (17.2), L: 562 (22.2) |
| Dry Weight [kg] * | 27-28 |
| Starting System | Manual Starter |
| Controls | Tiller Handle |
| Tilt System | Manual Tilt |
| Lubrication System | Wet Sump |
| Digital Network | Not available |
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