1998 Mercury 25HP Tiller Long (M15809)

The 1998 Mercury 25HP Tiller Long (M15809) is a 2-stroke outboard motor designed for small to medium-sized boats, such as fishing boats, jon boats, or dinghies. It features a tiller-style steering system, providing manual control for the operator. This motor is known for its reliability, efficiency, and ease of use, offering good power in a compact, lightweight package.

Key Features:

• Engine Type: 2-Stroke, 2-cylinder engine that delivers 25 horsepower.
• Steering: Tiller-operated, which means steering is controlled by a handle connected to the motor.
• Shaft Length: Long shaft (approximately 20 inches), suitable for boats with deeper transoms.
• Weight: Approximately 104-110 lbs, making it a relatively lightweight option for its power class.
• Cooling: Water-cooled engine to prevent overheating during operation.
• Carburetor: Equipped with a single carburetor, delivering a balanced fuel mixture for efficient operation.
• Starting System: Manual pull start, ensuring simplicity and reliability for users.
• Trim & Tilt: Manual tilt, which allows the operator to adjust the motor’s angle for better performance in different water conditions.

Performance:

• Horsepower: 25 HP, ideal for powering smaller boats and providing ample speed for fishing or recreational boating.
• Fuel Type: Runs on a gasoline and oil mixture, typical for 2-stroke engines, with a recommended ratio of 50:1.
• Fuel Economy: Generally efficient, providing a good balance between power and fuel consumption, though fuel efficiency can vary depending on the load and usage.
• RPM Range: Typically operates at 5,000 RPM at full throttle, providing ample speed for small boats.

Design and Usage:

The 1998 Mercury 25HP Tiller Long is designed with durability and versatility in mind. Its long shaft length makes it well-suited for use on boats with higher transoms, while the tiller steer system provides hands-on control for the operator, particularly useful in situations where precision is needed, such as in tight spaces or when fishing.

This motor excels in performance for both recreational and commercial use, particularly in shallow or moderately rough waters. It is often found on smaller boats that need a reliable outboard engine for both speed and maneuverability.

Maintenance:

• As a 2-stroke engine, regular maintenance is essential, including periodic oil and spark plug checks, fuel mixture replacement, and water pump inspection.
• Regular cleaning and flushing of the cooling system are recommended to ensure longevity, especially if the motor is used in saltwater.

The 1998 Mercury 25HP Tiller Long (M15809) is a practical, robust, and dependable choice for those looking for a versatile outboard motor in the 25HP range, suitable for a wide variety of boating applications.