Boat Motor 4 Stroke

4-Stroke Boat Motor: Pros & Cons

 

Pros:

Fuel Efficiency: 4-stroke outboards are up to 50% more fuel-efficient than 2-strokes of the same HP.

Environmentally Friendly: They produce up to 90% fewer emissions, making them a greener choice.

Durability: The lubrication system improves the longevity and reliability of internal parts, ensuring smoother operation.

Torque & Smoothness: 4-strokes generate more torque, ideal for heavier boats, and run smoothly at idle or low RPM without misfiring.

Quieter Operation: They are quieter than 2-strokes, with a lower pitch, reducing noise pollution.

 

Cons:

Heavier & Bulkier: Due to the complex design, 4-stroke motors are heavier, reducing acceleration and top-end speed compared to 2-strokes.

Maintenance: Requires regular oil and filter changes and more maintenance due to its complex lubrication system.

Not Ideal for Small Boats: The added weight may make it less suitable for smaller boats that benefit from a lightweight 2-stroke engine.

 

Currently, CALON GLORIA supplies 4-stroke 6HP and 20HP outboard boat motors, with the 60EFI model coming soon!

 

Guided by a commitment to excellence, we have launched a diverse range of outboard motors: 2-stroke models (3HP, 5HP, 9.8HP, 15HP, 20HP, 30HP, and 40HP), 4-stroke models (6HP, 20HP, 60HP EFI), and an electric outboard (40HP). Our ongoing focus on technological innovation has yielded impressive results. As of July 24, 2023, we have secured 25 patents, covering key areas such as outboard motor oil supply systems, yaw testing devices, and underwater gear nut fastening systems. In response to concerns over virtual horsepower labeling in the market, we have consistently adhered to the principle of providing genuine horsepower, earning increasing recognition and praise from consumers.

The Calon Gloria team is a dedicated group committed to excellence at every stage of the production and service lifecycle. Our R&D team drives continuous innovation, developing powerful and reliable outboard motors. The Sales team ensures a seamless purchasing experience, offering expert guidance to our customers. Our After-Sales team focuses on customer satisfaction, providing ongoing support and maintenance. Production is carried out with precision and efficiency, meeting the highest quality standards, while our Quality Control (Q&C) team conducts thorough inspections to ensure the durability and performance of each component. Together, we strive to deliver products that consistently exceed customer expectations.

R&D

R&D

Production

After-sales

Sales

Q&C

2017 Shanghai International Boat Show 

The outboard motor should be installed in a way that ensures the boat is properly balanced. If not, steering could become difficult. For boats with a single engine, position the outboard motor along the boat's centerline (keel line).

 

Mounting Height

To achieve optimal performance, it's important to minimize water resistance (drag) between the boat and the outboard motor. The mounting height plays a crucial role in this. If the motor is mounted too high, cavitation may occur, reducing propulsion. If the propeller tips break the water surface, the engine speed may increase excessively, leading to overheating. On the other hand, if the motor is mounted too low, water resistance will increase, lowering engine efficiency. Ideally, the anti-cavitation plate should be positioned between the boat's bottom and approximately 25 mm (1 inch) below it.

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