663-45945-00/02/20-EL, 663-45945-02-36 Propeller (13 Teeth) for 2/4T 25-70HP Yamaha Outboard Motor Parts, 3X11-1/8"x13"-G

• Customization: Available
• After-sales Service: Yes
• Warranty: 1 Year
• Model NO.: 663-45945-00/02/20-EL, 663-45945-02-36
• Fuel Type: Gasoline
• Engine Capacity: 1-2L
• Engine: 2 Stroke
• Engine Position: Outboard
• Condition: New
• Applicable Brand: Yamaha
• Engine Power: 25/30/40/45/50/55/60/70HP
• Standard: ISO
• Unit Assy: Lower Casing & Drive
• Size: 11-1/8"x13"-G
• Material: Aluminium Alloy
• Surface Treatment: Paint Baking
• Blades: 3
• Type: Propeller
• Transport Package: Box
• Trademark: YALUME MARINE
• Origin: China, Japan, Taiwan
• HS Code: 8409911100
• Production Capacity: 20000

Product Description

Detailed Photos

Installation Instructions

Product Description

663-45945-02-EL 
Propeller (3X11-1/8"x13"-G), Yamaha,
For Outboard: Yamaha 48, Yamaha FT50, Yamaha 25, Yamaha 40, Yamaha 50, Yamaha 55, Yamaha 60, Yamaha 70, Yamaha F30, Yamaha F40, Yamaha F45, Yamaha F50

663-45945-02-36 
Propeller (3X11-1/8"x13"-G), Yamaha,
For Outboard: Yamaha 40, Yamaha 50

663-45945-00-EL 
Propeller (3X11-1/8"x13"-G), Yamaha,
For Outboard: Yamaha 25, Yamaha 40, Yamaha 50

663-45945-20-EL 
Propeller (3x11-1/8"x13"-G), Yamaha,
For Outboard: Yamaha 55
 

Features:

1. Blade Design and Shape: Yamaha propellers come in various shapes (3-blade, 4-blade) and pitches to suit different boating needs, balancing acceleration, top speed, and fuel efficiency.

2. Hydrodynamic Efficiency: These propellers are engineered for hydrodynamic efficiency, meaning they cut through the water with minimal resistance for smoother operation and greater fuel efficiency.

3. Shock Absorbing Hub: Many Yamaha propellers have a shock-absorbing hub, which reduces engine vibrations and absorbs impacts from underwater obstacles, protecting the drivetrain.

4. Ventilation Control: Yamaha propellers are often designed with specific exhaust ventilation features to improve acceleration and control, especially during rapid shifts from idle to high RPMs.

5. Corrosion Resistance: Most Yamaha propellers are designed for saltwater environments with corrosion-resistant finishes that prolong their life in marine conditions.

Functions:

1. Provides Thrust for Propulsion: The propeller's primary function is to generate thrust by spinning in the water, propelling the boat forward or in reverse.

2. Determines Speed and Efficiency: The propeller's pitch, diameter, and blade number directly impact speed, fuel efficiency, and handling, influencing how the boat performs at different RPMs.

3. Controls Direction: The propeller assists with directional control, especially in tandem with the steering system, making it a critical element for navigation.

4. Manages Power Load: By creating the appropriate water resistance, the propeller manages the engine's power load, allowing for safe and efficient acceleration without straining the engine.

Maintenance Tips:

1. Inspect for Damage Regularly: Look for nicks, dents, or bends in the blades. Even minor damage can affect performance and fuel efficiency, so repair or replace damaged propellers promptly.

2. Check for Proper Mounting: Ensure the propeller is securely mounted and that all fasteners are tight. A loose propeller can affect balance and performance.

3. Lubricate the Prop Shaft: Periodically remove the propeller and apply a marine-grade grease to the prop shaft to prevent it from seizing up due to rust or debris.

4. Clean and Rinse After Saltwater Use: After each outing, especially in saltwater, rinse the propeller thoroughly to remove salt and debris, preventing corrosion and buildup.

5. Monitor for Fishing Line or Debris: Check for fishing line or other debris that can get caught around the prop shaft, which can damage seals and lead to leaks.

Common Signs of Wear or Failure:

1. Vibration or Excessive Noise: Unusual vibration or noise during operation could indicate a bent or damaged propeller blade, affecting performance and balance.

2. Decreased Acceleration or Speed: If the boat struggles to accelerate or reach its normal top speed, it may indicate that the propeller has been damaged or is not the correct pitch.

3. Poor Fuel Efficiency: Reduced fuel efficiency can result from worn or improperly matched propellers that create excess drag or lack optimal hydrodynamics.

4. Propeller Slipping or Cavitation: Cavitation (bubbles forming around the propeller) can happen due to damaged blades or poor water flow, leading to reduced thrust and performance.

5. Excessive Engine Strain: If the engine revs higher than usual without corresponding boat speed, it could mean the propeller pitch is mismatched or the propeller has excessive wear.

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