Let’s Talk About NGK Spark Plugs 5722/5100.4715 5722 Spark Plug – BR9ES
The NGK Spark Plugs 5722/5100.4715 5722 Spark Plug – BR9ES is a staple in the world of small engines, particularly in marine applications, known for its reliability and consistent performance. This spark plug from NGK Spark Plugs is designed to withstand harsh conditions and provide a strong spark, ensuring optimal engine function. It’s a testament to NGK Spark Plugs’ commitment to quality and durability.
My journey to the NGK BR9ES was born out of necessity. I’ve been tinkering with two-stroke engines my entire life, from outboards on my old fishing boat to dirt bikes tearing up trails. Consistently, I faced the problem of spark plugs fouling in the marine environment and erratic performance.
Upon unboxing the NGK BR9ES, the first thing I noticed was its robust construction. The plug felt solid and well-made, giving me immediate confidence in its ability to withstand the rigors of a marine engine. The threads were clean and precise, promising a secure fit, while the overall design was simple and functional.
I’ve used Champion and Autolite plugs in the past, but they often failed prematurely in my two-stroke outboard motor, especially in humid conditions. I chose the NGK Spark Plugs 5722/5100.4715 5722 Spark Plug – BR9ES due to the brand’s reputation for reliability and its specific design for demanding applications. I hoped its low heat range and alumina ceramics would prevent the common issues I faced.
Initially, I was cautiously optimistic. I have been burned before, but the reputation of NGK and the construction of the BR9ES instilled some hope that I was finally using the right tool for the job.
Real-World Testing: Putting NGK Spark Plugs 5722/5100.4715 5722 Spark Plug – BR9ES to the Test
First Use Experience
My initial test of the NGK BR9ES was on my 1978 Johnson 85 HP outboard motor. I installed the plug and took the boat out on a saltwater bay known for its choppy conditions and strong currents. I wanted to mimic a normal fishing trip and see what happened.
The engine started noticeably smoother and idled without the sputtering I had grown accustomed to with other plugs. During the first few hours, I ran the engine through its paces, from low-speed trolling to high-speed runs across the bay. The BR9ES delivered consistent performance, even when I was running a little rich.
The ease of installation was also a plus, as the plug threaded in smoothly and securely. I did notice some slight discoloration on the electrode after the first run, but nothing alarming; it was a sign that the plug was doing its job of burning off deposits. No surprises.
Extended Use & Reliability
After several weeks of regular use, the NGK BR9ES continued to impress me with its reliability. Even after extended periods of idling, the engine responded crisply when I opened up the throttle. I used the motor to run crab pots, which requires a lot of idling time.
I inspected the plug after a month of use, and it showed minimal signs of wear and tear. The electrode was still clean and well-defined, indicating efficient combustion. Regular maintenance involved simply checking the plug’s condition and cleaning it with a wire brush as needed; it was a simple task.
Compared to my previous experiences with other spark plugs, the NGK BR9ES significantly outperformed them in terms of longevity and consistent performance. In this specific motor, I had to replace the champion plugs once a month because they would fail. The NGK plug has been running strong for three months now.
Breaking Down the Features of NGK Spark Plugs 5722/5100.4715 5722 Spark Plug – BR9ES
Specifications
The NGK Spark Plugs 5722/5100.4715 5722 Spark Plug – BR9ES has a 14mm thread diameter and a 19mm (3/4″) reach. It features a resistor to reduce radio frequency interference and a solid terminal nut. The BR9ES uses a copper core center electrode for increased conductivity.
The “B” indicates a 14mm thread diameter, the “R” signifies a resistor type plug, “9” denotes the heat range, “E” represents the 19mm thread reach, and “S” means standard construction. Understanding these designations is crucial for selecting the correct plug for your engine. The heat range is critical. A lower number (like 9) indicates a cooler plug, better suited for high-performance or racing applications to prevent pre-ignition and detonation.
Performance & Functionality
The NGK BR9ES excels in providing a consistent spark, leading to improved engine performance and fuel efficiency. Its ability to resist carbon buildup and pre-ignition is a significant advantage, especially in two-stroke engines that are prone to fouling. The plug is designed to operate over a much wider heat range than ordinary plugs.
While the BR9ES performs admirably, it’s essential to select the correct heat range for your specific engine. Using a plug that is too cold can lead to fouling, while a plug that is too hot can cause pre-ignition and engine damage. It meets expectations, and so far, has exceeded them.
Design & Ergonomics
The NGK BR9ES boasts a robust design, featuring high alumina ceramics for enhanced heat transfer and electrical insulation. Its solid copper core and nickel-tipped electrode contribute to extended plug life. The patented triple gasket sealing process effectively eliminates combustion gas leakage.
The plug’s weight is negligible, and its compact size ensures easy installation in most engine configurations. There is no learning curve. This plug is a standard item to install.
Durability & Maintenance
The NGK BR9ES is built to last, thanks to its high-quality materials and construction. The solid copper core and nickel-tipped electrode resist wear and corrosion, even in harsh environments. Designed to operate over a much wider heat range than ordinary plugs, this plug also resists carbon buildup and pre-ignition.
Maintenance is minimal, typically involving periodic inspection and cleaning. The plug’s robust design minimizes the need for frequent replacement.
Accessories and Customization Options
The NGK BR9ES itself does not offer many customization options. However, different spark plug caps and wires can be used to optimize performance. Always ensure that any accessories are compatible with the plug’s specifications and your engine’s requirements.
The NGK BR9ES is widely compatible with various marine and small engine applications. Its popularity makes it easy to find compatible accessories.
Pros and Cons of NGK Spark Plugs 5722/5100.4715 5722 Spark Plug – BR9ES
Pros
- Reliable Performance: The NGK BR9ES provides a consistent spark, ensuring smooth engine operation.
- Durable Construction: High-quality materials and a robust design contribute to extended plug life.
- Fouling Resistance: The plug’s design resists carbon buildup and pre-ignition.
- Improved Fuel Efficiency: By promoting efficient combustion, the BR9ES can help improve fuel economy.
- Wide Compatibility: The plug fits a wide range of engines.
Cons
- Heat Range Sensitivity: Selecting the wrong heat range can lead to performance issues or engine damage.
- Standard Design: The plug lacks advanced features found in some premium spark plugs.
Who Should Buy NGK Spark Plugs 5722/5100.4715 5722 Spark Plug – BR9ES?
The NGK Spark Plugs 5722/5100.4715 5722 Spark Plug – BR9ES is perfect for boat owners, motorcycle enthusiasts, and anyone who relies on small engines for work or recreation. It is especially good for users of vintage two-stroke motors. It’s a great plug for those who value reliability and consistent performance.
Anyone seeking maximum performance gains or specialized features may want to explore more advanced spark plug options, such as iridium or platinum plugs. If you are racing, you will probably want a spark plug specifically designed for racing. Before using, make sure this is the correct plug for your motor, or you could cause significant damage.
A spark plug socket and a gap tool are must-have accessories for installing and maintaining the NGK BR9ES. They are required.
Conclusion on NGK Spark Plugs 5722/5100.4715 5722 Spark Plug – BR9ES
The NGK Spark Plugs 5722/5100.4715 5722 Spark Plug – BR9ES is a dependable and cost-effective choice for anyone seeking reliable ignition in their small engines. Its robust construction, fouling resistance, and consistent performance make it a standout product in its class. NGK Spark Plugs continues to deliver quality with this spark plug.
At $11.99, the NGK BR9ES offers excellent value, providing performance and durability that justify its price. I would recommend this plug to anyone looking for a reliable and long-lasting spark plug for their small engine. Don’t hesitate; grab a set of NGK Spark Plugs 5722/5100.4715 5722 Spark Plug – BR9ES and experience the difference for yourself!