Description

Mercury 3.5MH FourStroke 15″ Outboard Motor

The Mercury 3.5MH FourStroke 15″ Outboard Motor is an ultra-lightweight, portable outboard designed for dinghies, inflatable boats, canoes, jon boats, and small tenders. Weighing only 37 lbs (17 kg), it is one of the lightest four-stroke outboards in its class, making it easy to transport, mount, and store. Powered by a reliable 85 cc single-cylinder 4-stroke engine, the 3.5MH delivers dependable performance, quiet operation, and excellent fuel economy without the need to mix oil and fuel.

The engine features a built-in fuel tank, manual start, and 360-degree swivel steering, allowing the motor to rotate completely for exceptional maneuverability and making reverse operation possible without a dedicated reverse gear. Multiple manual trim positions and shallow-water drive capability make it ideal for navigating rivers, lakes, and coastal waters. Its compact size and simple maintenance make it a favorite among recreational boaters looking for a dependable portable outboard.

Specifications

• Engine Type: Single-Cylinder, OHV, 4-Stroke
• Horsepower: 3.5 HP
• Displacement: 85 cc
• Fuel System: Carburetor
• Starting System: Manual Pull Start
• Steering: Tiller Handle with 360° Steering
• Shaft Length: 15″ (Short Shaft)
• Gear Shift: Forward (360° swivel for reverse maneuvering)
• Gear Ratio: 2.15:1
• Cooling System: Water-Cooled
• Trim Positions: 6 Manual Positions
• Recommended Full Throttle RPM: 5,000–6,000 RPM
• Integrated Fuel Tank: Approximately 1.0 L (0.26 gal)
• Fuel Type: Unleaded Gasoline (87 Octane Minimum)
• Engine Oil Capacity: Approximately 300 mL
• Approximate Dry Weight: 37 lbs (17 kg)

Key Features

• Lightweight design at just 37 lbs (17 kg) for excellent portability.
• Reliable 85 cc single-cylinder FourStroke engine.
• No fuel/oil mixing required.
• Integrated fuel tank for convenient operation.
• 360-degree steering provides exceptional maneuverability.
• Manual pull-start with automatic decompression for easier starting.
• Six manual trim positions with shallow-water drive capability.
• Quiet and fuel-efficient operation.
• Corrosion-resistant construction for freshwater and saltwater use.
• Easy-access maintenance points for simplified servicing.

Ideal Applications

• Inflatable boats
• Dinghies
• Tender boats
• Canoes
• Small jon boats
• Sailboat auxiliaries
• Small fishing boats
• Recreational watercraft

Why Choose the Mercury 3.5MH FourStroke?

The Mercury 3.5MH FourStroke is an excellent choice for boaters seeking a lightweight, dependable, and easy-to-use portable outboard. Its compact design, integrated fuel tank, smooth four-stroke operation, and innovative 360-degree steering make it ideal for tenders, inflatables, and small utility boats. Whether you’re ferrying to shore, exploring calm waterways, or powering a small fishing boat, the Mercury 3.5MH FourStroke delivers the reliability, fuel efficiency, and convenience that have made Mercury Marine one of the world’s most trusted outboard manufacturers.

Mercury 3.5MH FourStroke. This compact outboard offers a reliable, lightweight operation with its 1-Cylinder and 5.2 displacement (CID) that generates 5000-6000 RPM at full throttle. The Mercury F 3.5 MH boat motor is easy to install. It has functions like a quick start and prompt throttle response. The 1-litre integral fuel tank saves space in your vessel. You also get easy access to the long multi-function tiller handle for superior throttle control.