Yamaha 4HP Outboard Motor 15 Inch Shaft
$930.00
The Yamaha 4HP Outboard Motor (F4SMHA) is a lightweight, portable 4-stroke outboard featuring a 15-inch short shaft, tiller steering, and manual start—ideal for small boats, tenders, and inflatables.
| Product Condition |
New |
|---|
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Overview
The Yamaha 4HP Outboard Motor 15 Inch Shaft offers reliable, efficient power in a compact form factor designed for easy transport and storage. Built by Yamaha Marine, this single-cylinder 4-stroke outboard delivers smooth performance and proven durability for light-duty marine use.
Thanks to Yamaha’s Oil Retention System, the F4SMHA can be stored on its side without oil leaks, making it convenient for trailering and dockside handling. The integrated fuel tank keeps the setup clean and compact, with the option to connect an external tank for extended range.
Key Features
Easy Storage: Oil Retention System allows on-side storage without leaks
Comfortable Control: 180-degree steering with dampened twist-grip throttle
Portable Design: Built-in carry handles and resting pads for easy transport
Effortless Starting: Manual start with decompression system
Efficient 4-Stroke Engine: Quiet, fuel-efficient, and low maintenance
Why You Should Buy It
The Yamaha F4SMHA is a smart choice for boaters who need dependable portable power with minimal weight. Its short shaft configuration is well-suited for small transoms, while Yamaha’s engineering ensures long-term reliability. Backed by a 3-year Yamaha manufacturer warranty, it’s a compact outboard you can trust.
FAQ – Yamaha F4SMHA
What shaft length does this model have?
This model features a 15-inch (short) shaft.
Is the fuel tank built in?
Yes. It includes an internal 0.29-gallon fuel tank, with optional external tank connection.
Does it have electric start?
No. This model uses a manual start system.
What warranty is included?
It comes with a 3-Year Yamaha Manufacturer Warranty.
| Specification | Details |
|---|---|
| Engine Type | Yamaha F4SMHA, 4-Stroke |
| Horsepower | 4 HP |
| Cylinders | 1 |
| Displacement | 139 cc |
| Fuel System | Carbureted |
| Shaft Length | 15 in (Short) |
| Steering | Tiller |
| Starting System | Manual |
| Trim & Tilt | Manual |
| Rotation | Standard |
| Full Throttle RPM | 4000 – 5000 rpm |
| Alternator Output | 6 amp |
| Fuel Tank | Internal (0.29 gal) |
| Weight | 59 lbs |
| Propeller | Aluminum |
| Warranty | 3-Year Manufacturer Warranty (Yamaha) |
Yamaha 4HP Outboard Motor (Model F4SMHA)
Aluminum Propeller (installed)
Internal Fuel Tank (0.29 gallons)
Owner’s Manual




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