Mercury 2.5 HP 4 Stroke

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ENGINE: 2012 2.5 HP Mercury 4 Stroke

HP/Kw @ Prop

2.5 / 1.9

Full throttle RPM

4500 - 5500

Cylinder Configuration

Displacement (L / CID)

5.2 / 85

Bore and Stroke (in / mm)

2.16 x 1.42in / 55 x 36mm

Fuel Induction System

2-valve pushrod (overhead valve)

Ignition

CDI w/electronic spark advance

Fuel System

Carbureted

Cooling System

Water-cooled with thermostat

Starting

Manual

Gearcase Ratio

2.15:1

Gear Shift

F-N

Steering

Tiller with 360° turning

Trim Positions

Exhaust System

Above prop

Shallow water trim range (degrees)

Recommended Oil

Mercury 4-Stroke Outboard Oil

Fuel Ethanol Tolerance

87 octane/up to 10% ethanol

Integral fuel tank (gal / L)

0.3 / 0.95

Engine Protection Operator Warning System

Over-rev

Weight

38lbs / 17kg

Shaft Length

15"

Key 2.5 HP Features

Go anywhere with portable power.
Taking the fun with you is one of the great advantages of owning an inflatable boat or small fishing boat. Mercury offers a complete line of extremely light portable FourStroke outboards, with the widest range of models to choose from. So wherever you and your boat go, your Mercury portable FourStroke can also go. The entire line makes operation and portability easy with smart, simple features. Plus, clean, quiet, fuel-efficient FourStroke performance makes them the obvious power of choice.

Twist and Shout
Spinning in circles to turn around can make anyone dizzy. That’s why Mercury’s 2.5 and 3.5 hp FourStrokes offer 360° steering and a twist grip throttle. The tiller handle can be turned over and the engine rotated to reverse the thrust.

They’ll Never Hold You Back
Mercury’s 2.5 – 3.5hp portable outboards are designed from the start to be compact, lightweight and easier to carry. By utilizing Mercury’s patented one-piece integrated cylinderblock design, we’ve eliminated gaskets and fasteners and made the powerhead much more compact and lightweight.

No Vibration is Good Vibration
Your steering hand will thank you. On average, Mercury’s 3.5hp fourstroke has 32% less tiller handle vibration than competitive outboards.

A Better Grip
Mercury's twist-throttle tiller handle is longer for better control – plus it folds for easy, compact storage.

Download Mercury Outboards Brochure

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Storage Manual - Mercury 2.5 - 3.5 HP 4 Strokes: Storage Preparation
The major consideration in preparing your outboard for storage is to protect it from rust, corrosion, and damage caused by freezing of trapped water. The following storage procedures should be followed to prepare your outboard for out of season storage or prolonged storage (two months or longer).
Maintenance Manual - Mercury 2.5 - 3.5 HP 4 Strokes: Outboard Care
To keep your outboard in the best operating condition, it is important that your outboard receive the periodic inspections and maintenance listed in the Inspection and Maintenance Schedule. We urge you to keep it maintained properly to ensure the safety of you and your passengers, and retain its dependability.