Common Issues with Harley-Davidson Dyna Models

By Brian Wong, Reviewed by: Kurt Niebuhr, Updated on April 23, 2024

1. Common Issues with Harley Davidson Dyna Motorcycles

1.1. Issues with Harley Davidson Dyna Models Produced between 1991 and 1998

Harley Davidson Dyna motorcycles are known for their classic styling and impressive performance on the road. However, like all motorcycles, they are not immune to issues and mechanical problems. In this article, we'll take a closer look at the common issues with Harley Davidson Dyna motorcycles produced between 1991 and 1998.

1. Fuel Delivery Issues
One of the most common issues with Harley Davidson Dyna motorcycles produced between 1991 and 1998 is fuel delivery problems. The carburetor on these models is prone to clogging, which can cause issues with engine performance and starting. Regular carburetor cleaning and maintenance can help prevent these issues.

2. Electrical Issues
Another common issue with Harley Davidson Dyna motorcycles produced between 1991 and 1998 is electrical problems. This can manifest in a number of ways, such as issues with the starter motor or charging system. Regular battery maintenance and inspection can help prevent these issues from occurring.

3. Transmission Problems
Harley Davidson Dyna motorcycles produced between 1991 and 1998 are also known to experience transmission issues. These can include issues with gear engagement or slipping gears. Regular transmission fluid changes and proper clutch adjustment can help prevent these issues.

4. Braking System Problems
The braking system on Harley Davidson Dyna motorcycles produced between 1991 and 1998 can also experience problems. This can include issues with brake fade or worn brake pads. Regular brake pad replacement and fluid changes can help maintain safe and reliable braking performance.

5. Suspension Problems
Finally, suspension problems are also common with Harley Davidson Dyna motorcycles produced between 1991 and 1998. This can manifest in a number of ways, such as sagging or leaking shocks. Regular suspension maintenance and inspection can help prevent these issues and ensure a comfortable ride.

1.2. Issues with Harley Davidson Dyna Models Produced between 1999 and 2005

Harley Davidson Dyna motorcycles produced between 1999 and 2005 are known for their powerful engines and excellent handling on the road. However, like all motorcycles, they are not immune to mechanical issues. In this article, we'll take a closer look at the common issues with Harley Davidson Dyna motorcycles produced between 1999 and 2005.

1. Engine Misfires
One of the most common issues with Harley Davidson Dyna motorcycles produced between 1999 and 2005 is engine misfires. This can be caused by a variety of factors, such as clogged fuel injectors or faulty spark plugs. Regular engine maintenance and inspection can help prevent these issues and ensure optimal engine performance.

2. Clutch Problems
Another common issue with Harley Davidson Dyna motorcycles produced between 1999 and 2005 is clutch problems. These can include slipping clutches, difficulty shifting gears, or noisy transmissions. Regular clutch maintenance and proper adjustment can help prevent these issues.

3. Electrical Issues
Harley Davidson Dyna motorcycles produced between 1999 and 2005 are also known to experience electrical problems. This can include issues with the charging system or faulty wiring. Regular battery maintenance and inspection can help prevent these issues and ensure reliable electrical performance.

4. Suspension Problems
The suspension system on Harley Davidson Dyna motorcycles produced between 1999 and 2005 can also experience issues. This can include sagging shocks, leaking fork seals, or worn bushings. Regular suspension maintenance and inspection can help prevent these issues and ensure a comfortable ride.

5. Braking System Problems
Finally, the braking system on Harley Davidson Dyna motorcycles produced between 1999 and 2005 can experience issues as well. This can include worn brake pads or issues with the brake lines. Regular brake maintenance and inspection can help prevent these issues and ensure reliable braking performance.

1.3. Issues with Harley Davidson Dyna Models Produced between 2006 and 2017

Harley Davidson Dyna motorcycles produced between 2006 and 2017 are known for their powerful engines, comfortable ride, and sleek design. However, like all motorcycles, they are not immune to mechanical issues. In this article, we'll take a closer look at the common issues with Harley Davidson Dyna motorcycles produced between 2006 and 2017.

1. Cam Chain Tensioners
One of the most common issues with Harley Davidson Dyna motorcycles produced between 2006 and 2017 is cam chain tensioner problems. The cam chain tensioners can wear out over time, causing a knocking sound from the engine. It is important to have them checked and replaced regularly to prevent further engine damage.

2. Starter Issues
Another common issue with Harley Davidson Dyna motorcycles produced between 2006 and 2017 is starter issues. This can be caused by a faulty starter motor or solenoid, or issues with the battery or charging system. Regular battery and charging system maintenance can help prevent these issues.

3. Ignition Switch Problems
Harley Davidson Dyna motorcycles produced between 2006 and 2017 are also known to experience ignition switch problems. This can include difficulty starting the motorcycle or the ignition switch failing altogether. Regular inspection and replacement of the ignition switch can help prevent these issues.

4. Transmission Issues
The transmission on Harley Davidson Dyna motorcycles produced between 2006 and 2017 can also experience issues. This can include difficulty shifting gears or a slipping clutch. Regular transmission maintenance and inspection can help prevent these issues and ensure optimal performance.

5. Fuel System Problems
Finally, the fuel system on Harley Davidson Dyna motorcycles produced between 2006 and 2017 can experience problems as well. This can include clogged fuel injectors or a faulty fuel pump. Regular fuel system maintenance and inspection can help prevent these issues and ensure reliable engine performance.

2. Specific Issues with Harley Davidson Dyna Models

2.1. Harley Davidson Dyna Street Bob

Harley Davidson Dyna Street Bob is a popular model that was first introduced in 2006. It quickly became a favorite among riders for its classic styling, comfortable ride, and impressive performance. However, like all motorcycles, the Street Bob is not immune to mechanical issues. In this article, we will take a closer look at the specific issues with Harley Davidson Dyna Street Bob.

1. Rear Suspension Issues
One of the most common issues with Harley Davidson Dyna Street Bob is rear suspension problems. The suspension can wear out over time, causing a bumpy and uncomfortable ride. Regular inspection and replacement of the rear suspension can help prevent these issues and ensure a comfortable ride.

2. Clutch Problems
Another common issue with Harley Davidson Dyna Street Bob is clutch problems. The clutch can wear out over time, causing difficulty in shifting gears or a slipping clutch. Regular clutch maintenance and inspection can help prevent these issues and ensure optimal performance.

3. Electrical Issues
Harley Davidson Dyna Street Bob is also known to experience electrical issues. This can include a faulty battery, charging system issues, or problems with the electrical wiring. Regular electrical system maintenance and inspection can help prevent these issues and ensure a reliable ride.

4. Brake Problems
The brake system on Harley Davidson Dyna Street Bob can also experience issues. This can include brake pads wearing out quickly, brake fluid leaks, or problems with the brake caliper. Regular brake maintenance and inspection can help prevent these issues and ensure safe riding.

5. Engine Problems
Finally, like all Harley Davidson Dyna motorcycles, the Street Bob can experience engine problems. This can include cam chain tensioner issues, starter problems, transmission issues, and fuel system problems. Regular maintenance and inspection can help prevent these issues and ensure optimal engine performance.

2.2. Harley Davidson Dyna Wide Glide

Harley Davidson Dyna Wide Glide is a popular motorcycle model known for its distinctive styling and impressive performance. However, like all motorcycles, it is prone to specific issues that riders may encounter during ownership. In this article, we will take a closer look at the specific issues with Harley Davidson Dyna Wide Glide.

1. Rear Shock Absorbers
One of the most common issues with Harley Davidson Dyna Wide Glide is the rear shock absorbers. Over time, the rear shock absorbers can wear out and fail to provide a comfortable ride. This can lead to a bumpy and uncomfortable ride. Regular maintenance and inspection of the rear shock absorbers can help prevent these issues and ensure optimal performance.

2. Brake System
Another common issue with Harley Davidson Dyna Wide Glide is the brake system. The brake system can experience issues such as brake fluid leaks, worn-out brake pads, or problems with the brake caliper. Regular inspection and maintenance of the brake system can help prevent these issues and ensure a safe and enjoyable ride.

3. Electrical System
Harley Davidson Dyna Wide Glide can also experience electrical issues. The electrical system can experience problems such as a faulty battery, charging system issues, or problems with the electrical wiring. Regular maintenance and inspection of the electrical system can help prevent these issues and ensure a reliable ride.

4. Fuel System
Another issue with Harley Davidson Dyna Wide Glide is the fuel system. The fuel system can experience problems such as clogged fuel injectors, fuel leaks, or problems with the fuel pump. Regular maintenance and inspection of the fuel system can help prevent these issues and ensure optimal engine performance.

5. Engine Problems
Finally, like all Harley Davidson Dyna motorcycles, the Wide Glide can experience engine problems. This can include issues such as cam chain tensioner problems, starter issues, transmission issues, or problems with the fuel injection system. Regular maintenance and inspection can help prevent these issues and ensure optimal engine performance.

2.3. Harley Davidson Dyna Fat Bob

Harley Davidson Dyna Fat Bob is a muscular-looking motorcycle known for its powerful engine and unique design. However, like all motorcycles, it is prone to specific issues that riders may encounter during ownership. In this article, we will take a closer look at the specific issues with Harley Davidson Dyna Fat Bob.

1. Clutch Problems
One of the most common issues with Harley Davidson Dyna Fat Bob is clutch problems. The clutch can experience issues such as clutch slip or clutch drag, which can cause difficulties in shifting gears. Regular maintenance and inspection of the clutch system can help prevent these issues and ensure smooth and efficient operation.

2. Oil Leaks
Another common issue with Harley Davidson Dyna Fat Bob is oil leaks. The engine can experience oil leaks due to worn-out gaskets, damaged oil seals, or problems with the oil filter. Regular maintenance and inspection of the engine can help prevent these issues and ensure optimal engine performance.

3. Braking System
The braking system is another area where Harley Davidson Dyna Fat Bob can experience issues. The brake system can experience problems such as worn-out brake pads, problems with the brake caliper, or brake fluid leaks. Regular inspection and maintenance of the brake system can help prevent these issues and ensure a safe and enjoyable ride.

4. Electrical System
Harley Davidson Dyna Fat Bob can also experience electrical issues. The electrical system can experience problems such as a dead battery, charging system issues, or problems with the electrical wiring. Regular maintenance and inspection of the electrical system can help prevent these issues and ensure a reliable ride.

5. Suspension System
Finally, like all Harley Davidson Dyna motorcycles, the Fat Bob can experience suspension system problems. The suspension system can experience issues such as worn-out shocks, damaged forks, or problems with the swingarm. Regular maintenance and inspection of the suspension system can help prevent these issues and ensure a comfortable and stable ride.

3. Common Problems with Harley Davidson Dyna Engines

3.1. Evolution Engine Problems

The Harley Davidson Dyna line of motorcycles featured the Evolution engine, which was a V-twin engine produced from 1984 to 1999. While the engine was lauded for its power and torque, it did have some common issues that riders should be aware of.

One of the most common issues with the Evolution engine is the cam chain tensioners. These tensioners were made of plastic, and over time they could wear down and fail. When this happens, the cam chain can become loose, causing a rattling noise in the engine. If left unchecked, this can cause serious damage to the engine. To prevent this issue, it's recommended that riders replace the plastic tensioners with metal ones.

Another issue with the Evolution engine is the lifters. These are small components that help control the movement of the valves. In some cases, the lifters can become worn or damaged, causing a ticking noise in the engine. If left unchecked, this can also cause damage to the engine. To prevent this issue, it's recommended that riders regularly change their oil and use high-quality oil filters.

The rocker box gaskets are also a common issue with the Evolution engine. These gaskets can become worn or damaged over time, causing oil leaks from the engine. To prevent this issue, it's recommended that riders regularly inspect their rocker box gaskets and replace them as needed.

Lastly, the carburetor can be a source of problems for the Evolution engine. The carburetor is responsible for mixing air and fuel in the engine, and if it becomes clogged or damaged, it can cause a range of issues such as poor fuel economy, rough idling, and difficulty starting. To prevent this issue, it's recommended that riders regularly clean and maintain their carburetor, and consider upgrading to a fuel injection system if possible.

Overall, while the Evolution engine is a powerful and reliable engine, it's important for riders to be aware of these common issues and take steps to prevent them from occurring. Regular maintenance and inspections can go a long way in keeping the engine running smoothly and preventing costly repairs down the road.

3.2. Twin Cam Engine Problems

The Harley Davidson Dyna models equipped with the Twin Cam engine, particularly those produced between 1999 and 2017, have their own set of common issues that riders may encounter. These engines are known for their power and durability, but they are not without their faults. Here are some common problems associated with Twin Cam engines on Harley Davidson Dyna motorcycles:

1. Cam Chain Tensioners: One of the most common issues with Twin Cam engines is cam chain tensioner failure. The stock tensioners are hydraulic and can fail over time, causing engine noise and even engine damage. Upgrading to a manual tensioner or a hydraulic tensioner with upgraded parts can help prevent this problem.

2. Oil Leaks: Harley Davidson Dyna models with Twin Cam engines can develop oil leaks from various areas of the engine. Common leak points include the rocker box gaskets, transmission main seal, and oil pump gasket. Regular inspection and maintenance can help prevent leaks from occurring.

3. Stator Failure: The stator is responsible for charging the battery and providing electrical power to the motorcycle. Twin Cam engines have been known to experience stator failure, which can cause the battery to drain and eventually lead to a dead battery. Regular inspection and replacement of the stator can help prevent this issue.

4. Transmission Problems: Some Harley Davidson Dyna models with Twin Cam engines have reported transmission problems such as gear slipping, difficulty shifting, and excessive noise. Regular maintenance and inspection of the transmission can help prevent these issues from occurring.

5. Crankshaft Position Sensor Failure: The crankshaft position sensor is responsible for providing information to the engine control module, which helps control the engine's timing and fuel injection. Twin Cam engines can experience crankshaft position sensor failure, which can cause the engine to run poorly or not start at all. Regular inspection and replacement of this sensor can help prevent this issue.

It's important to note that regular maintenance and inspection of your Harley Davidson Dyna motorcycle, including the engine, can help prevent many of these common issues. If you do experience any of these problems, it's recommended to address them promptly to prevent further damage and costly repairs.

4. Common Maintenance Issues with Harley Davidson Dyna Motorcycles

4.1. Brake System Maintenance

Proper brake system maintenance is essential for the safe operation of any motorcycle, including the Harley Davidson Dyna. Over time, the brake system components can wear down or become damaged, leading to decreased performance and potentially dangerous situations. Here are some common maintenance issues to look out for with the brake system on Harley Davidson Dyna motorcycles:

1. Brake Pads: The brake pads are a critical component of the brake system and can wear down over time due to use. It's essential to monitor the thickness of the brake pads and replace them when they become too thin. Riding with worn brake pads can lead to decreased braking performance and potentially dangerous situations.

2. Brake Fluid: Brake fluid is responsible for transmitting force from the brake lever to the brake pads. It can become contaminated or break down over time, reducing the effectiveness of the brake system. Regularly checking and replacing the brake fluid can help ensure the brake system is functioning correctly.

3. Brake Lines: The brake lines transport brake fluid from the master cylinder to the brake calipers. Over time, the brake lines can become corroded or damaged, leading to leaks or decreased brake performance. Regularly inspecting the brake lines for any signs of wear or damage is essential to maintaining the integrity of the brake system.

4. Brake Rotors: The brake rotors are the metal discs that the brake pads clamp down on to stop the motorcycle. Over time, the brake rotors can become warped or worn down, leading to decreased braking performance. Regularly inspecting the brake rotors for any signs of warping or damage is essential to ensuring the brake system is functioning correctly.

5. Brake Calipers: The brake calipers hold the brake pads and are responsible for clamping them down onto the brake rotors. Over time, the brake calipers can become contaminated with dirt or debris or become seized due to rust or corrosion. Regularly inspecting the brake calipers for any signs of wear or damage and cleaning them can help ensure they are functioning correctly.

Proper brake system maintenance is essential to the safe operation of any motorcycle, including the Harley Davidson Dyna. Regularly inspecting and maintaining the brake system components can help ensure the brake system is functioning correctly, providing reliable stopping power when needed.

4.2. Tire Maintenance

Proper tire maintenance is essential to ensure the safety and longevity of your Harley Davidson Dyna motorcycle. Here are some common tire maintenance issues with the Harley Davidson Dyna:

1. Underinflated Tires: One of the most common tire maintenance issues is underinflated tires. It can lead to poor handling, decreased fuel efficiency, and tire wear. Always check the tire pressure regularly, and ensure it's at the recommended level.

2. Overinflated Tires: Overinflated tires can also cause handling problems and increase the risk of tire blowouts. Always follow the manufacturer's recommended tire pressure and avoid overinflating the tires.

3. Uneven Tire Wear: Uneven tire wear is usually caused by misalignment or improper tire pressure. It can lead to decreased performance, reduced handling, and tire blowouts. Always ensure that the tires are aligned correctly, and the pressure is maintained at the recommended level.

4. Bald Tires: Bald tires can significantly impact the motorcycle's handling and increase the risk of accidents. Always inspect the tires regularly for wear and replace them when they are worn out.

5. Tire Damage: Punctures, cuts, and other damage can compromise the tire's integrity and lead to tire failure. Always inspect the tires regularly for damage and replace them if necessary.

Proper tire maintenance can help you avoid accidents, improve handling, and prolong the life of your Harley Davidson Dyna motorcycle. Always follow the manufacturer's recommendations for tire pressure, alignment, and maintenance, and ensure that you inspect the tires regularly for wear and damage.

5. Conclusion

Harley Davidson Dyna motorcycles have been a popular choice for riders who want a classic, powerful, and customizable ride. However, like any motorcycle, they require regular maintenance and can experience common issues that riders should be aware of.

From the common engine problems like leaks and overheating, to issues with the brake and tire systems, keeping a Harley Davidson Dyna in top shape requires attention to detail and regular maintenance. It's important to keep up with routine oil changes, tire rotations, and brake inspections to ensure safe and optimal performance.

It's also important for riders to be aware of specific issues that may be common to their particular model of Harley Davidson Dyna. For example, the Street Bob may have issues with handlebar wobble, while the Fat Bob may experience problems with fuel delivery.

Overall, with proper care and maintenance, a Harley Davidson Dyna can provide a thrilling and reliable ride for years to come. Regular inspections and prompt attention to any issues can help riders avoid more serious problems and keep their motorcycle running smoothly.

Example List of Harley-Davidson Dyna Engine Error Codes and Descriptions

Frequently Asked Questions about Harley-Davidson Dyna Issues and Solutions

• Do you have problems with car?
• Write a Review