Mercury 25HP MH FourStroke Outboard

The Mercury 25HP MH FourStroke is a manual-start outboard on a 15 inch short shaft with tiller steering, built around the 25 horsepower range's three-cylinder four-stroke block, without an electric starter to carry. What it's for Mercury positions this engine for aluminum tiller boats, jon boats, utility hulls, and fish-and-ski setups, where a lighter, simpler motor pays off more than an electric starter would. Electronic fuel injection still gives quick, reliable starts on the pull cord, and the cylinder head is tuned for crisp throttle response. Construction and protection Mercury lists this motor as saltwater rated, with zinc-coated components for corrosion resistance in fresh and salt water, wet sump lubrication, and thermostat-controlled water cooling. Gear shift runs forward, neutral, and reverse, tilt is manual, and recommended fuel is 87 octane unleaded gasoline with up to 10 percent ethanol. Mercury notes smooth, quiet, low-vibration running, with low oil pressure and overheat warnings built in as standard protection. What's included The crate holds a 6.6 gallon tank with quick-connect line, mounting hardware, an owner's manual, and a tool kit, plus Mercury's 3-year warranty. The propeller must be purchased separately to match your boat. Does the MH have electric start? No, it starts manually; EFI is there for quick starts rather than push-button convenience. What boats suit it? Mercury lists aluminum tiller, jon, utility, and small fishing boats. Specifications Feature Details Engine Type 25 HP Inline 3, 4-Stroke EFI Horsepower 25 HP Cylinders 3 Cylinders Shaft Length 15” (Short Shaft) Starting System Manual Start Fuel System Electronic Fuel Injection (EFI) Full Throttle RPM Range 5000-6000 RPM Displacement 32.1 CI Cooling System Water-Cooled, Thermostatically Controlled Fuel Type Unleaded Gasoline (87 Octane, up to 10% Ethanol) Lubrication System Wet Sump Feature Details Steering Type Tiller Handle Gear Shift Forward-Neutral-Reverse Trim & Tilt Manual Tilt Throttle Response Instant & Smooth Corrosion Protection Saltwater Rated Feature Details Low Oil Pressure Warning Yes Overheat Protection Yes Vibration Dampening System Yes, Smooth & Quiet Operation Corrosion Protection Zinc-Coated Components