Johnson 9.9HP Long Tiller – 2S (M16711)
Johnson 9.9HP Long Tiller – 2-Stroke (M16711) is a versatile and lightweight outboard motor, designed for small boats, tenders, and fishing crafts. This engine provides a reliable mix of power and portability, making it an excellent choice for recreational and utility boating. Its 2-stroke design ensures quick acceleration and consistent performance in various conditions.
Key Specifications
- Engine Type: 2-Stroke, Carbureted
- Horsepower: 9.9 HP
- Controls: Tiller handle
- Shaft Length: Long (20 inches)
- Fuel Type: Gasoline (Oil-gas mix, typically 50:1 ratio)
- Weight: ~77 lbs (35 kg)
- Ignition System: CDI (Capacitor Discharge Ignition) for reliable starting
- Cooling System: Water-cooled
Features
Long Shaft Design:
- The 20-inch shaft is ideal for boats with higher transoms, ensuring efficient propulsion and smooth operation.
Lightweight and Portable:
- Weighing only 77 lbs, this motor is easy to transport, install, and store.
Tiller Handle Control:
- Ergonomically designed tiller handle offers precise throttle and gear control for excellent maneuverability.
Quick and Responsive:
- The 2-stroke design delivers a strong power-to-weight ratio, ensuring quick acceleration and dependable performance.
Durable Construction:
- Built with corrosion-resistant materials for longevity in both freshwater and saltwater environments.
Ease of Maintenance:
- Straightforward 2-stroke design makes routine maintenance simple and cost-effective.
Applications
- Fishing Boats: Ideal for powering small to medium-sized aluminum or fiberglass fishing boats.
- Dinghies and Tenders: Perfect for lightweight and portable boating setups.
- Utility Boats: Reliable for light-duty tasks and short to medium-range transport.
Performance and Efficiency
- Power Output: The 9.9HP provides ample thrust for small boats, offering good speed and handling.
- Fuel Economy: Efficient for its class, though less so than 4-stroke alternatives.
- Noise and Vibration: Standard for a 2-stroke engine but manageable given its size and application.
Maintenance Tips
Fuel Mixture:
- Use high-quality 2-stroke oil and gasoline in the recommended 50:1 ratio to ensure optimal performance.
Cooling System Care:
- Flush with fresh water after use in saltwater to prevent corrosion and debris buildup.
Spark Plug Inspection:
- Regularly check and replace spark plugs as needed to maintain consistent starts.
Propeller Maintenance:
- Inspect for damage or debris to keep performance smooth and efficient.
Seasonal Storage:
- Drain the fuel system and apply anti-corrosion spray when storing the motor for extended periods.
Market Information
- Price Range (Used): $800–$1,500 USD, depending on condition and usage hours.
- Availability: Commonly found in the used market and at marine dealerships.
- Resale Value: Holds good value due to its portability and versatility.
Pros and Cons
Pros:
- Lightweight and easy to handle.
- Strong power-to-weight ratio.
- Affordable maintenance and straightforward operation.
- Long shaft for compatibility with various boat designs.
Cons:
- Requires pre-mixed fuel, which can be less convenient.
- Higher emissions compared to 4-stroke engines.
- Slightly noisier and less fuel-efficient than newer 4-stroke models.
Notes
Johnson 9.9HP Long Tiller – 2S (M16711) is a dependable choice for small boat owners seeking a portable, powerful, and easy-to-maintain motor. Its robust performance and compact design make it an excellent option for a variety of boating applications.
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