Screamin’ Eagle 110 Engine Problems, Solutions, and Maintenance Explained

The Screamin’ Eagle 110 engine, produced by Harley-Davidson, has become a popular choice for motorcycle enthusiasts seeking a powerful and reliable ride.

With its large displacement and high-performance capabilities, this engine has been a top choice for many riders. However, despite its popularity, the Screamin’ Eagle 110 engine has faced its fair share of problems. From oil leaks to overheating issues, many owners have experienced frustrating and costly repairs.

Here we will delve into the common Screamin’ Eagle 110 engine problems and provide insights on how to prevent and address these issues. As a trusted source for motorcycle news and information, we aim to provide our readers with an objective and informative overview of the challenges faced by owners of this engine. So without further ado, let’s dive into the details.

Screamin’ Eagle 110 Engine Problems

Common Screamin’ Eagle 110 Engine Problems And Solutions

Common Screamin' Eagle 110 Engine Problems And Solutions

The Screamin’ Eagle 110 engine is known for its power and performance, but like any mechanical component, it can experience problems. Some common issues that riders have reported with the Screamin’ Eagle 110 engine include oil leaks, excessive heat, and loss of power.

These problems can be frustrating for owners, especially considering the premium price tag of the engine. It is important to address these issues promptly to prevent further damage and ensure the longevity of the engine. If you are experiencing any problems with your Screamin’ Eagle 110 engine, it is recommended to consult with a certified Harley-Davidson technician who can diagnose and repair the issue. Below we discuss the Screamin’ Eagle 110 engine problems and give you the solutions.


Overheating is a common issue that can occur with the Screamin’ Eagle 110 engine. This can be caused by a variety of factors, including improper installation, inadequate cooling systems, or heavy stress on the engine misfires. When the engine overheats, it can lead to serious damage and even engine lifter engine failure if not addressed promptly. It is important to regularly monitor the engine’s temperature and take steps to prevent overheating, such as ensuring proper airflow and maintaining adequate coolant levels.

Oil Leaks

Oil Leaks

One common issue that riders may experience with the Screamin’ Eagle 110 engine is oil leaks. Oil leaks can occur for a variety of reasons, including faulty head gasket issues, seals, or improperly tightened bolts. If you notice oil spots or puddles underneath your motorcycle, it is important to address the issue promptly to prevent further damage to your engine.

It is recommended to consult with a professional mechanic who is familiar with the specifics of the Screamin’ Eagle 110 engine to diagnose and fix any oil leaks. Taking proactive measures to address oil leaks can help ensure the longevity and performance of your motorcycle’s engine speed increases.

Poor Fuel-Economy

Poor fuel economy is a common problem that owners of Screamin’ Eagle 110 engines may experience. This can be frustrating, especially for those who enjoy long rides or use their motorcycles for daily commuting. There are several potential causes for poor fuel economy in these engines, including improper tuning, dirty air filters, and worn-out spark plugs.

It is important to address these issues promptly to improve fuel efficiency and prevent further damage to the engine. Consulting with a professional mechanic or seeking advice from fellow Screamin’ Eagle 110 owners can help diagnose and resolve fuel pump economy problems effectively.

Poor Fuel Efficiency

One common problem that owners of the Screamin’ Eagle 110 engine life may encounter is poor fuel efficiency. This can be frustrating for riders, as it not only leads to more frequent trips to the gas station but also affects the overall performance of the motorcycle.

There are several potential causes for this issue, including a clogged air filter, dirty fuel injectors, or incorrect fuel mapping. To address this problem, it is recommended first to check and clean the air filter, as a clogged filter can restrict airflow and impact fuel efficiency. If that doesn’t solve the issue, it may be necessary to have the fuel injectors cleaned or recalibrated by a professional technician.


One common problem that owners of Screamin’ Eagle 110 engines may experience is excessive vibrations. These vibrations can be felt throughout the bike and can be quite uncomfortable for the rider. There are several potential causes for these vibrations, including engine misalignment, worn engine mounts, or issues with the clutch or transmission.

If you are experiencing excessive vibrations with your Screamin’ Eagle 110 engine, it is recommended to have it inspected by a qualified mechanic who can diagnose and fix the issue. Addressing the vibrations early on can help prevent further damage to the engine and ensure a smoother and more enjoyable ride.

High Idle

Experiencing a high idle with your Screamin’ Eagle 110 engine can be a frustrating problem. This issue can result in increased fuel consumption, excessive engine heat, and potential damage to engine components. There are several possible causes for a high idle, including a malfunctioning throttle position sensor, a vacuum leak, or an issue with the idle air control valve.

To diagnose and resolve the problem, it is recommended to consult with a qualified mechanic who specializes in Harley-Davidson motorcycles and has experience with the Screamin’ Eagle 110 engine. They will be able to perform a thorough inspection and determine the exact cause of the high idle, allowing for proper repairs to be made.

Faulty Lifter

The faulty lifter problem was more common in the older engines of Screamin’ 110. Thankfully, this issue has died down considerably in recent versions. Yet, for older users, it can be a cause of headaches. When the lifter becomes faulty, it will create a loud noise, making it easy for you to identify the problem. A faulty lifter with loud noise may happen for multiple reasons:

  • Poor Lubrication: When the oil fails to reach the tappet, the metal parts will experience friction. As a result, the metal parts will cause noise due to friction and wear out soon. You must ensure proper lubrication to avoid the problem.
  • Hydraulic Tap Malfunctioning: When the hydraulic tap of the Screamin’ engine fails to work properly, it can be a more serious concern. It has a check valve and plunger. These two parts control the clearance between the engine’s rocker arm and valve. The rocker’s arm hits the valve if the clearance exceeds the standard. Naturally, you will hear a loud banging noise.
  • Tight Pushrod: The pushrod controls the opening and closing of the connected valve. The valve will not close down properly and get stuck in an opening position. It happens due to a tight pushrod, so you must refix it in its actual position.
  • Leaky Exhaust: When the exhaust leaks, the engine might become sloppy. As a result, the valves start causing a tapping noise. You need to apply a new sealant to fix the exhaust pipe leaks and see what happens. If the problem continues, replacing the exhaust is your only solution.

Engine Bogging Down And Misfiring

Engine Bogging Down And Misfiring

Often, there can be misfiring engine issues. When you start the engine, the spark plug fails to ignite and start the engine. Also, when revving up, the engine might struggle. Faulty spark plugs or bad fuel injectors can cause this. The fuel and air mixture will often be inaccurate due to faulty carbs on the engine. As it happens, there will be less air than required for the fuel.

For this, the engine starts causing unusual noises. Besides the faulty carburettor, the spark plug may be too old or loose pistons. Dirt and residual accumulation are also responsible for the problem.

Poor Acceleration:

It struggles when you try accelerating your Harley motorcycle with Screamin’ Eagle 110. It occurs due to dirty throttle bodies or clogged fuel injectors. Dirt can clog it quickly if you last cleaned the fuel injector long ago. So, you need to inspect, clean, and maintain the throttle part and fuel injector. It ensures the expected performance of the V-twin engine.

Diagnosing And Troubleshooting Your Screamin’ Eagle 110-Engine Problems

Diagnosing And Troubleshooting Your Screamin' Eagle 110-Engine Problems

If you’re experiencing problems with your Screamin’ Eagle 110 engine, it’s important to diagnose and troubleshoot the issues as soon as possible. Some common problems that riders may encounter include excessive oil consumption, overheating, loss of power, and abnormal noises. To diagnose these issues, start by checking the oil level and quality, inspecting the cooling system for leaks or blockages, and listening for any unusual sounds. Here are the troubleshooting:

Check The Spark Plugs

If your engine isn’t starting, one of the first things you should check is the spark plugs. They often cause malfunction, especially when engines sit idle for a while. If it appears damaged, you need to clean or replace the spark plug. Also, clean the residues first and try starting your engine. Often, it should solve the problem.

Ensure The Right Oil Level

Oil is essential for keeping your engine running properly. So, you should check the oil level. If it’s too low, add enough oil until it reaches the proper level. Plus, it would be best if you used the recommended lubricant and oil for optimal engine performance. For the twin-cam engine, you may use the following oils:

  • 20W-50 full-synthetic oil

A quality oil would be the 20W-50 VOLLSYNTH. It meets the recommended viscosity of the oil. So it keeps the engine in perfect condition.

Check The Fuel System

It would be best if you looked at your fuel valve for any damages or residual development. Also, ensure that the hoses and lines are securely attached and free of blockages. If those aren’t working properly, the fuel system might not get enough fuel or air into the combustion chamber. It will decrease the engine performance.

One key solution is to maintain the carburettor and fuel injector properly. When these two parts are in good condition, the fuel will deliver the right performance. As a result, the Eagle 110 engine will satisfy your riding needs.

Check For Faulty Components

One of your Screamin’ Eagle 110 engine’s components may be at fault. It can be its piston rings or valves, for example. Thus, remember to take a look at them too. Generally, when parts like the valves break down, it produces a knocking sound.

Mainly, it happens due to inconsistent combustion pressure. So, it would be best if you quickly replaced the damaged valve or piston rings to avoid further consequences.

Pressure Test It:

Sometimes, everything looks normal, but your engine still doesn’t run right. It can be genuinely a bad experience. But you should keep your head cool and test the entire engine for the problem.

You should run a pressure test on it. The test will detect any leaks in its manifold or ignition systems and any air pockets in its oil system. Remember that all these can lead to major issues if left unchecked.

Recommended Maintenance To Avoid Screamin’ Eagle 110 Engine Issues

Recommended Maintenance To Avoid Screamin’ Eagle 110 Engine Issues

Do you own a Screamin’ Eagle 110 engine for a while? Then, you’re already familiar with the maintenance it needs. However, for new users, knowing the types of maintenance Screamin’ Eagle 110 engine needs is always ideal. Regularly checking and maintaining the engine can save you time and money in the long run. Here are the maintenance points.

Oil And Filter Changes And Cleaning Maintenance

An oil change is essential for keeping your engine running smoothly. You may perform the oil and filter change every 1,000 to 5,000 miles. It will mainly depend on the type of oil you’re using and your riding frequency and habit. Or else, you can follow your bike’s instructions. The user manual of the engine will recommend the right time to change the oil filter.

Clean Air Filter

It would be best if you tried keeping the oil and air filter clean, too. Air and fuel filters are the lungs of your engine. Thus, you must ensure they’re kept clean and debris-free. If they become clogged or dirty, it can cause a lack of power and other problems for your engine.

Also, a clean air filter helps keep dirt and other particles from reaching the engine’s combustion chamber. It reduces wear and tear on your bike’s parts. We suggest you replace or clean the air filter at least once a year, even if it doesn’t look dirty. For this, wipe out the exterior of the carburetor, air, and oil filter with a clean cloth.

Also, the replacement should be an easy and inexpensive one. Yes, air filter replacement will cost less than $10, which you must pay attention to.

Spark Plug Checkup

You need to check your spark plugs every year as well. If you ride frequently or on a long road trip, check the spark plug often. It will help maintain optimal performance and keep other problems at bay.

Regularly checking and taking care of these maintenance tasks won’t just help avoid Screamin’ Eagle 110-engine problems €” they’ll ensure that your ride stays in great condition so that you can hit the open road for years!

Check For Intake Leaks

Another integrated system to keep an eye on is the intake manifold. Always ensure that it has proper sealing. You can do this by checking for any leaks or cracks affecting performance. It is crucial in older engines since the rubber seals tend to dry out and crack over time.

If the rubber seal appears problematic, you must replace it soon. Or else it will cause more problems that you don’t want.


All in all, Screamin’ Eagle 110 Engine Problems are a common occurrence. The good news is that they are easy to diagnose and resolve. It’s essential to check the air filter, carbs, and spark plugs, particularly if the engine has been sitting idle for a long time.

If you find yourself with a Screamin’ Eagle 110 engine problem, don’t fret. With a little know-how and some elbow grease, you’ll have your ride running smoothly again. And for that, you can always follow our suggestions. If you still need help solving the engine issues, consulting a professional mechanic is suggested to avoid further inconvenience.


How Big Is The Screaming Eagle Engine?

The Screamin Eagle engine is available in a variety of sizes, ranging from 88 cubic inches (1450cc) to 131 cubic inches (2147cc), depending on the specific model and year.

What Is The Purpose Of A Twin Cam Engine?

The purpose of a twin-cam engine is to improve the performance and efficiency of the engine. The twin cam design allows for better airflow and combustion, resulting in increased power output and smoother operation.

What Are The Benefits Of Twin Cam Engine?

Twin-cam engines have several benefits. Firstly, they allow for better airflow in the combustion chambers, resulting in improved power and performance. Secondly, twin-cam engines can support higher RPMs, which is beneficial for faster acceleration and top speed.

What Is The Purpose Of A Twin Cam Engine?

The purpose of a twin-cam engine is to improve performance and efficiency in an automobile. Twin cam, or dual overhead cam (DOHC), refers to an engine configuration where there are two camshafts per cylinder head.

What Is The Common Problem With Harley Twin Cam?

The common problem with Harley twin cam engines is the issue of cam chain tensioners. Over time, the plastic tensioners can wear down and fail, leading to excessive noise, loss of power, and potential engine damage.

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