What is the horsepower rating of the 1982 Mercury 115 HP outboard motor?

The 1982 Mercury outboard motor is rated at 115 horsepower.

What type of engine does the 1982 Mercury 115 HP outboard have?

The 1982 Mercury 115 HP outboard is equipped with a 3-cylinder, 2-stroke engine.

What is the displacement of the 1982 Mercury 115 HP outboard motor?

The engine displacement for the 1982 Mercury 115 HP outboard is approximately 808 cc.

What is the weight of the 1982 Mercury 115 HP outboard motor?

The 1982 Mercury 115 HP outboard weighs around 330 pounds (150 kg).

What type of fuel system does the 1982 Mercury 115 HP outboard use?

The 1982 Mercury 115 HP outboard uses a carbureted fuel system.

What is the recommended fuel type for the 1982 Mercury 115 HP outboard?

The recommended fuel for the 1982 Mercury 115 HP outboard is regular unleaded gasoline mixed at a 50:1 ratio with two-stroke oil.

What are the gear ratios available on the 1982 Mercury 115 HP outboard?

The 1982 Mercury 115 HP outboard typically features a gear ratio of 1.85:1.

1982 MERCURY 115 HP OUTBOARD SPECS

1982 Mercury 115 HP Outboard Specs: A Detailed Look at a Classic Marine Engine 1982 mercury 115 hp outboard specs represent a snapshot of marine engineering from a time when reliability and performance were paramount for recreational and professional boaters alike. Whether you’re restoring a vintage boat, considering a classic outboard for your watercraft, or simply curious about the technology behind these engines, understanding the specifications and features of the 1982 Mercury 115 HP outboard motor can offer valuable insights. Let’s dive into what made this model stand out and why it still holds a place of respect among boating enthusiasts.

Overview of the 1982 Mercury 115 HP Outboard

The 1982 Mercury 115 HP outboard motor was part of Mercury Marine’s lineup during an era when two-stroke engines dominated the market. Known for its durability, power, and relatively lightweight design, this motor was a popular choice for mid-sized boats, including fishing vessels, pontoons, and small cruisers. Mercury’s reputation for building reliable outboards meant that the 115 HP model was designed to deliver consistent performance under various marine conditions. It combined a blend of mechanical simplicity with enough power to get boats up on plane quickly and maintain cruising speeds efficiently.

Engine Type and Configuration

At its core, the 1982 Mercury 115 was a naturally aspirated, two-stroke engine. It featured a V6 configuration, which was somewhat unique at the time compared to the more common inline-four setups. This V6 design contributed to smoother operation and better torque delivery, especially at lower RPMs, making it excellent for both acceleration and steady cruising. This six-cylinder layout helped balance the engine, reducing vibrations and enhancing overall smoothness — a crucial factor for comfort during extended hours on the water.

Key 1982 Mercury 115 HP Outboard Specs

Understanding the technical specifications helps paint a clearer picture of the engine’s performance and capabilities.

Displacement and Power Output

**Displacement:** Approximately 167 cubic inches (2.74 liters)
**Horsepower:** Rated at 115 HP at 5,000 RPM

The displacement of 167 cubic inches allowed the engine to generate ample power without becoming overly bulky, striking a balance between weight and output. At 115 horsepower, the motor was strong enough for boats in the 16 to 22-foot range, delivering both speed and efficiency.

Weight and Dimensions

**Weight:** Around 250 to 265 pounds (varied slightly based on specific model and accessories)
**Length:** Mid-sized outboard shaft length options, typically 20 or 25 inches

The relatively moderate weight made the 1982 Mercury 115 HP outboard manageable for installation and maintenance while still providing the substantial power needed for a wide range of marine activities.

Fuel System and Efficiency

The engine utilized a carbureted fuel system, standard for the era before fuel injection became widely adopted. The carburetor was designed to balance fuel and air mixture effectively, delivering reliable combustion and decent fuel economy for a two-stroke. While two-stroke engines are generally less fuel-efficient than four-strokes, the Mercury 115 struck a reasonable compromise by incorporating features aimed at reducing fuel consumption and emissions within the technological limits of the early 1980s.

Cooling and Lubrication

Water cooling was the method employed to keep the engine’s temperature within safe operating limits. The motor had an integrated water pump that circulated lake or sea water through the engine block, which prevented overheating during long runs. Lubrication was managed by an oil injection system, which automatically mixed oil into the fuel at the correct ratio. This eliminated the need for pre-mixing fuel manually—a convenience that many boaters appreciated. The system also helped reduce exhaust smoke and oil consumption.

Performance Characteristics and Handling

One of the standout aspects of the 1982 Mercury 115 HP outboard was its balance between power delivery and smooth operation. The V6 layout played a significant role in this, offering steady torque across a broad RPM range, making it easier to accelerate boats quickly and maintain cruising speeds without struggling. Many users reported that the engine responded well to throttle changes, providing predictable power whether idling near docks or pushing through choppy waters. This made it a favorite among anglers and recreational boaters who needed reliability and control.

Starting and Maintenance

Starting a 1982 Mercury 115 HP was straightforward, typically accomplished with a manual pull-start or an optional electric start, depending on the model variant. The simplicity of the two-stroke design meant fewer moving parts and easier access to key components during routine maintenance. Regular upkeep involved checking the carburetor, replacing spark plugs, inspecting the water pump impeller, and ensuring the oil injection system functioned properly. Given the engine’s age, many enthusiasts recommend using fresh fuel and proper storage techniques to maintain longevity.

Common Upgrades and Restoration Tips

If you’re dealing with a 1982 Mercury 115 HP outboard today, whether restoring one or upgrading an existing model, there are several considerations to keep in mind:

Fuel System Overhaul: Carburetors can become gummed up after years of storage. A thorough cleaning or rebuild can restore performance.
Ignition System: Upgrading to an electronic ignition system can improve reliability and ease starting.
Propeller Selection: Matching the right propeller size and pitch can optimize speed and fuel economy, depending on your boat’s weight and usage.
Modern Lubricants: Using contemporary synthetic oils designed for two-stroke engines enhances engine life and reduces wear.
Regular Cooling System Checks: Ensuring the water pump impeller is in good condition prevents overheating—a common issue in older outboards.

These upgrades can breathe new life into a classic motor, preserving its vintage charm while improving performance and reliability.

Why the 1982 Mercury 115 HP Outboard Still Matters

Even decades after its release, the 1982 Mercury 115 HP outboard remains a beloved engine for collectors and boaters who appreciate the craftsmanship and durability of older outboards. Its specifications, while simple compared to today’s advanced four-stroke engines with electronic fuel injection, showcase a time when marine engines were built to be rugged and straightforward. For those interested in classic boating, understanding the 1982 mercury 115 hp outboard specs is essential. It helps in proper maintenance, informed restoration, and appreciating the engineering heritage that has shaped modern marine propulsion. Whether you’re cruising calm lakes or casting lines in saltwater bays, this classic Mercury motor offers a blend of nostalgia and dependable power that continues to capture hearts on the water.

1982 Mercury 115 Hp Outboard Specs