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

Hey there, Harley enthusiast! Are you looking to get the most out of your ride? We know you’re looking for a reliable engine that will satisfy you. Regarding this, Screamin’ Eagle 110 engine can be a quick and win-win purchase for you. 

Nonetheless, the powerful V-twin engine has encountered a few problems. Before you get it, you should understand the problems, their solutions, and their maintenance. That’s why we have figured out the common Screamin’ Eagle 110 engine problems.  

Whether you’re a novice or an experienced rider, possible Screamin’ Eagle 110 engine issues can quickly overwhelm you. It includes a faulty lifter, leaky oil or coolant compartment, and bogging down of the engine. 

If left unchecked, these issues can cause breakdowns on the road or worse. So, let’s see their reasons, solutions, and maintenance to avoid the problems. 

Screamin’ Eagle 110 Engine Problems

Common Screamin’ Eagle 110 Engine Problems

Common Screamin’ Eagle 110 Engine Problems

The Screamin’ Eagle 110 engine is a powerful engine designed for Harley-Davidson motorcycles. It has a complex design making it prone to certain problems. 

The Screamin’ Eagle 110 engine is an air-cooled, 45-degree V-Twin engine. It is designed for high-performance riding. It is reliable and powerful, but like any machine, it can develop issues that require attention or repair. 


One issue that often comes up with Screamin’ Eagle 110 is overheating. It happens due to decreased airflow over the cylinders or low coolant levels. The overheating can cause damage to internal components if left unchecked.

When you experience overheating frequently, you must check the coolant levels. Also, you should keep air filters clean and well-maintained.

Oil Leaks And Poor Fuel-Economy

Oil Leaks And Poor Fuel-Economy

Loose oil plugs or seals usually cause oil leaks in a Screamin’ Eagle 110 engine. The seals may wear out due to age or heat. You must ensure that all oil plugs are securely fastened to prevent leaks. Also, when needed, you should replace any worn-out oil seals.

Besides oil leaks, poor fuel economy is another common problem for the Screamin’ engine. It often happens due to a clogged air filter. When the air filter gets clogged, it can’t filter in and out the air in your Harley motorcycle. It affects the engine’s performance and reduces its mileage. 

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 tapped malfunctioning: When the hydraulic tappet 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 carburetor, the spark plug may be too old or loose. Also, dirt and residual accumulation are 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 

Do you suspect your Screamin’ Eagle 110 engine is having problems? Often, an unusual noise will alert you about the problematic engine. And when you hear such loud noises, it’s time to act fast. At this point, you must start diagnosing and troubleshooting the problem. First, you should figure out the cause to get it fixed. 

Here are some tips on how to do just that:

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

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, you must use recommended lubricant and oil for optimal engine performance. 

For the twin-cam engine, you may use the following oils:

  1. 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

You should look 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 carburetor 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, you should quickly replace 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. Also, it helps keep those pesky Screamin’ Eagle 110 engine problems at bay.

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

You should try 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 tears 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 cause 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 invite 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. 

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