Yamaha Marine Engine Lower Drive Unit Parts-Shaft, Propeller 679-45611-00/01-00 for 25/40/50HP Boat Motor

• Customization: Available
• After-sales Service: Yes
• Warranty: 1 Year
• Model NO.: 679-45611-00/01-00
• Application: Boat, Yacht
• Standard: ISO
• Customized: Non-Customized
• Surface Treatment: Oil Blooming
• Material: Stainless Steel
• Type: Propeller Shaft
• Unit Assy: Lower Casing & Drive 1
• Applicable Brand: YAMAHA
• Engine Power: 25/40/50HP
• Cylinders: 2
• Engine: 2 Stroke
• Engine Position: Outboard
• Engine Capacity: 1-2L
• Condition: New
• Fuel Type: Gasoline
• Transport Package: Box
• Trademark: YALUME MARINE
• Origin: China, Japan, Taiwan
• HS Code: 8409911100
• Production Capacity: 20000

Product Description

 
 

Detailed Photos

 

Installation Instructions

Product Description

679-45611-01-00
Shaft, Propeller, Yamaha,
For Outboard: Yamaha 25, Yamaha 40, Yamaha 50

The propeller shaft of a Yamaha outboard motor is a critical drivetrain component that transmits power from the engine to the propeller, enabling the boat to move.

Functions of Propeller Shaft:

1. Power Transmission: The primary function of the propeller shaft is to transfer rotational power from the engine's gearbox to the propeller, driving the boat forward or backward depending on the gear selected.

2. Supports the Propeller: The shaft securely holds the propeller in place, ensuring it remains aligned and operates efficiently without wobbling or excessive vibration.

3. Torque Handling: It handles the torque generated by the engine, ensuring smooth and efficient power delivery even under high loads or during rapid acceleration.

Features:

1. Precision Engineering: The shaft is precisely machined to ensure a smooth, balanced rotation, which minimizes vibrations and maximizes performance.

2. Splined Ends: The shaft typically features splines at one or both ends for secure attachment to the gearbox and the propeller, ensuring a reliable fit and effective power transfer.

3. Corrosion Resistance: The propeller shaft is designed to resist corrosion from constant exposure to water, especially saltwater, enhancing its longevity and performance.

4. Shock Absorption: It's designed to withstand the impacts and shocks from hitting objects in the water, reducing the likelihood of damage to the drivetrain and engine.

Maintenance Tips:

1. Regular Inspection: Inspect the shaft regularly for signs of wear, corrosion, pitting, or bends. Damage can lead to vibration, reduced performance, or propeller damage.

2. Lubrication: Ensure the splines are properly greased during maintenance to prevent wear and corrosion. Use marine-grade grease designed for high-load applications.

3. Check Alignment: Make sure the propeller is correctly aligned and balanced on the shaft to avoid undue stress that could lead to shaft or propeller damage.

4. Avoid Impacts: Be cautious when navigating in shallow waters or near underwater obstacles to prevent impacts that could damage the propeller shaft.

5. Replace Damaged Seals: Check the propeller shaft seals regularly and replace them if they show signs of wear or leakage. Worn seals can allow water to enter the lower unit, leading to internal corrosion and damage.

6. Remove Debris: Routinely check for fishing lines, weeds, or debris wrapped around the shaft, as these can damage seals or cause excessive wear.

7. Regular Propeller Removal: Periodically remove the propeller to inspect the shaft and the splines for wear or damage. This also allows you to check for fishing lines or other debris.

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