Mercury F5 5HP FourStroke Outboard Motor (Portable & Versatile)

The Mercury F5 gives you serious power while remaining in the lightweight portable category. With 5HP in a compact frame, this motor can confidently propel small boats without weighing them down. Compared to the 6HP, the Mercury F5 maintains maximum portability yet still provides a notable boost in thrust over a 4HP model. That makes it a popular choice for owners of inflatable boats ~2.5–3.5 m who often carry family or gear – the 5HP handles the load more capably. Likewise, many sailors use a 5HP as an auxiliary on 4–6 m sailboats, especially in the Sail Power version tailored for sailing needs. The Mercury F5 is designed for ease of use – it offers reliable starting, smooth gear shifting, and low vibration so even extended running doesn’t wear you out or grate on your ears.

• Extra Thrust for Small Boats: Compared to a 4HP, the Mercury F5 delivers noticeably better acceleration and a higher top speed on similar sized vessels. If your boat is loaded with more people or gear, that extra 1HP makes a difference, allowing you to plane more easily. For fishing skiffs or 3m+ inflatables, the F5 provides the power headroom that a 4HP would be pushing to its limits.
• Sailor-Friendly Sail Power Version: Mercury offers the F5 Sail Power option, specially configured for sailboats. This variant comes with a long shaft (to reach deeper transoms), is equipped with an alternator (around 5A output) to keep your battery charged, and features a larger-diameter, lower-pitch propeller that gives more thrust at low speeds. The Sail Power model is ideal for pushing a sailboat in and out of marinas or when the wind dies – it delivers reliable control while charging your onboard electronics.
• Smooth and Quiet Operation: Even though it’s Mercury’s highest-powered single-cylinder (aside from the 6HP), the F5 remains very quiet and civilized on the water. The sound-insulated cowling and through-prop exhaust system reduce noise and fumes. The engine has water cooling with a thermostat to maintain optimal temperature and reduce wear. Low vibration means you can troll for hours or putter around slowly without discomfort – great for fishing or leisurely cruising.
• Dual Fuel Capacity – Internal & External Tanks: By default, the Mercury F5 comes with a built-in 1.1L fuel tank, perfect for short trips or as a backup supply. But when you decide to embark on a full day of fishing or a longer cruising adventure, you can hook up a standard external tank (such as 12L). With an external tank, you’ll have fuel for the whole day without stopping – the F5 quickly transforms into an engine ready for extended journeys. Switching to the external tank is done via a quick-connect fitting, making it convenient and safe.
• Easy Maintenance and Dependability: The Mercury F5 is engineered with the casual boater in mind – inspections and servicing are simple. Oil can be changed easily through a convenient drain, the spark plug is readily accessible, and the fuel filter can be removed and cleaned without special tools. The CDI ignition system provides a reliable spark and includes over-rev protection. As a four-stroke motor, the F5 doesn’t require mixing oil and gas – just fill with regular unleaded and go. This simplicity, combined with Mercury’s 5-year warranty (with authorized servicing), ensures you’ll enjoy years of trouble-free use.