
The compatibility of a 1/4 fuel line with 5/16 barbed fittings is a common concern for vehicle owners, especially those restoring vintage vehicles. While some customers have reported success in using heavy-duty hose clamps to secure the line, others have found that the standard size clamps are insufficient, requiring thicker zip-ties or heavy-duty clamps for a secure fit. It's important to carefully measure your fuel outlet and select the appropriate clamps to ensure a safe and effective connection.
| Characteristics | Values |
|---|---|
| Product | PRO 1 Fuel Line Hose |
| Material | Black cloth-wrapped rubber |
| Inside Diameter | 1/4 inch |
| Length | 5 feet |
| Working Pressure | 50 psi |
| Fit | Honda, CB, CB550, tractors, lawnmowers, power washers, snow throwers |
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What You'll Learn

Black cloth-wrapped 1/4 fuel line
The black cloth-wrapped 1/4" fuel line is a high-quality product that is very similar to the stock size used in many 1960s-1980s Honda motorcycles, including the CB160, CB175, CB350K, CB/CL450K, CB550, and CB750. This fuel line can also be used for other vehicles such as ATVs, scooters, dirt bikes, and even lawn mowers and tractors.
The line has a larger O.D. than the original Honda line, so it requires larger clips to secure it in place. It is rated for indirect temperatures up to 150 degrees Celsius (302 degrees Fahrenheit) and can withstand pressures up to 350 PSI.
When installing this fuel line, it is important to measure your fuel outlet to ensure a proper fit. Some users have noted that the line may be too large to fit certain fuel systems without heavy-duty hose clamps. For example, one user reported that the Moose Racing hose clamps sold by 4into1 were not strong enough for their CB550 fuel system.
To address this issue, you can opt for thicker zip-ties or consider purchasing a master kit like the FLRK-15 from AGS Company, which includes all the necessary connectors, compression unions, adapters, and nylon fuel line to make 1/4" replacement lines quickly and easily.
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PRO 1 Fuel Line Hose
The PRO 1 Fuel Line Hose is a high-quality and cost-effective solution for various applications. It has an inside diameter of 1/4 inch and comes in two length options: 5 feet and 25 feet. This fuel line hose is a popular choice among customers for its functionality, flexibility, and ease of installation.
The PRO 1 Fuel Line Hose is suitable for a range of equipment, including motorized bikes, lawnmowers, snow blowers, power washers, and tractors. It is also compatible with small engines and has been used successfully in vintage car restoration projects. Customers have praised its performance and value for money, finding it to be a durable and reliable replacement for their OEM hose.
One notable feature of the PRO 1 Fuel Line Hose is its flexibility, which makes it easy to trim and install. The reinforcing threads in the wall of the hose contribute to its overall durability and performance. Additionally, the swivel adapter included with the hose adds to its convenience and functionality.
While the PRO 1 Fuel Line Hose has received positive reviews for its quality and functionality, there are a few considerations to keep in mind. Some customers have noted that the outside diameter is slightly larger than standard, requiring non-standard clamps for installation. It is important to ensure proper sizing and compatibility before purchase.
Overall, the PRO 1 Fuel Line Hose is a well-regarded product that offers good value for money. It is a reliable choice for various applications and is known for its flexibility and performance. With its durability and ease of installation, it has become a go-to option for many customers seeking a heavy-duty fuel line hose.
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$32.22

Compatibility with vintage Honda
When it comes to compatibility with vintage Honda vehicles, finding the right fuel line can be a challenge. Honda vehicles have specific fuel line requirements, and it is important to ensure that any replacement parts are compatible to avoid leaks and ensure optimal performance.
One option for vintage Honda owners is to source Honda-branded fuel lines. These are designed specifically for Honda vehicles and are available from Honda dealers or online retailers. For example, one Honda owner with a 1977 CB550 opted for a Honda-branded 4.5m fuel line (Part # 95001-4500860M) during a rebuild, prioritising the longevity of original parts over the cost.
Another consideration when replacing fuel lines in vintage Honda vehicles is the inner diameter (ID) and outer diameter (OD) of the hose. For instance, the fuel hose for a 1980 CM 400T has an ID of 5.5mm, while the carb fuel "nipple" has an OD of 6mm. Ensuring the correct dimensions is crucial for a secure fit and to prevent leaks.
In some cases, adapters may be required to ensure compatibility. For instance, the Hardline Adapter Fuel Fitting is designed to convert OEM hardlines to 6AN for custom fuel lines in specific Honda and Acura models, including the Honda Civic, Prelude, and Accord. This adapter is a good option for those looking to customise their fuel lines while ensuring a secure fit and optimal performance.
Finally, it is worth noting that some Honda owners have found success with universal fuel lines. For example, one owner of a vintage Honda CB noted that a 1/4" black rubber fuel line worked perfectly for their restoration project. However, it is always advisable to consult a professional or refer to the vehicle's specifications to ensure compatibility and prevent potential issues.
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AGS Company Automotive Solutions
AGS offers a wide range of automotive specialty repair products, solutions, and lubricants for both professionals and hobbyists. Their product line includes the EZ-Fit brake line replacement kit, which is designed to combat rust, and the Door-Ease product, which is a solution for squeaky and sticking doors.
In addition to their focus on innovation, AGS is dedicated to providing outstanding customer service and fostering an inclusive and supportive work environment. They recognize the integral roles that women play in their organization and value the diverse perspectives, talents, and leadership that they bring.
While I cannot confirm if this kit can be used to fit a 1/4 fuel line on a 5, it is clear that AGS Company Automotive Solutions provides a range of products and solutions for various automotive needs, with a strong focus on customer service and innovation.
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Hose clamps
One common type is the worm gear hose clamp, which features a band with a threaded screw that tightens and loosens the clamp. These clamps provide a secure hold and are easy to install and adjust. They are often used in automotive and plumbing systems due to their reliability and flexibility.
Another type is the T-bolt hose clamp, which utilizes a T-shaped bolt and a fixed-bridge design. These clamps offer superior clamping force and are ideal for applications with high pressures or vibrations, such as hydraulic systems or heavy-duty machinery. T-bolt clamps are typically made of sturdy materials like stainless steel to withstand demanding environments.
Band hose clamps are also popular and feature a band that wraps around the hose and a housing that contains a pressure pad and a screw. They provide even clamping pressure and are simple to install, making them suitable for a wide range of applications, from automotive to agricultural settings.
In the context of fitting a 1/4 fuel line to a 5/16 fitting, hose clamps play a crucial role in ensuring a secure and leak-proof connection. By choosing the appropriate clamp type and size, you can safely connect the fuel line, preventing leaks and ensuring the efficient operation of the system.
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Frequently asked questions
1/4 inch.
25 feet.
50 psi.
NRB/PVCC SAE30R6.
Tractors, lawnmowers, power washers, and snow throwers.











































