Stihl BG86 Air Filter Fixes (5 Pro Tips To Stop Bogging)

Let’s get right to it! I know how frustrating it is when your Stihl BG86 blower starts bogging down. The good news is, often, a simple air filter fix is all you need. A clean air filter can restore your blower’s power and efficiency in minutes. I’m going to walk you through five pro tips to keep your BG86 running like a champ.

Stihl BG86 Air Filter Fixes: 5 Pro Tips to Stop Bogging

As someone who’s spent countless hours clearing brush, prepping firewood, and generally wrestling with outdoor power equipment, I’ve learned that a little maintenance goes a long way. And the air filter? It’s usually the first suspect when your blower starts acting up. Think of it as the lungs of your machine – if it can’t breathe, it can’t work.

Why a Clean Air Filter Matters

Before we dive into the fixes, let’s quickly cover why air filters are so crucial. The air filter prevents dust, debris, and other particles from entering the engine. These contaminants can cause significant damage, leading to reduced performance, increased fuel consumption, and ultimately, a shorter lifespan for your blower.

Imagine running your BG86 through a cloud of sawdust (something I’ve definitely done while cleaning up after a small milling project). Without a clean air filter, that sawdust gets sucked into the engine, scoring the cylinder walls and gumming up the carburetor. Not good!

Pro Tip #1: Regular Inspection is Key

The first and arguably most important tip is to inspect your air filter regularly. I make it a habit to check mine every time I refuel the blower. This only takes a few seconds, and it can save you a lot of headaches down the road.

How to Inspect:

Turn off the blower and let it cool down. Safety first!
Locate the air filter cover. It’s usually on the side or top of the engine, secured by a screw or clip.
Remove the cover and take out the air filter.
Visually inspect the filter. Look for dirt, debris, oil, or any other contaminants.
Tap the filter gently against a clean surface. This can help dislodge loose dirt.

If the filter looks even slightly dirty, it’s time for a cleaning or replacement. Don’t wait until it’s completely clogged!

Data Point: Studies have shown that a clogged air filter can reduce engine power by up to 10% and increase fuel consumption by 20%.

Pro Tip #2: Cleaning Your Air Filter (The Right Way)

If your air filter isn’t too badly soiled, you can often clean it instead of replacing it. This is a great way to save money and reduce waste. However, it’s essential to clean it correctly.

Materials You’ll Need:

Warm water
Mild detergent (dish soap works well)
A soft brush (an old toothbrush is perfect)
Clean rags or paper towels
Air compressor (optional)

Cleaning Steps:

Tap the filter to remove loose dirt.
Mix warm water and a small amount of detergent in a container.
Submerge the filter in the soapy water and gently agitate it. Don’t scrub too hard, as this can damage the filter material.
Rinse the filter thoroughly with clean water. Make sure all the soap is gone.
Gently squeeze out excess water. Don’t twist or wring the filter, as this can also damage it.
Allow the filter to air dry completely. This is crucial! Never reinstall a wet or damp air filter.
If you have an air compressor, you can use it to gently blow out any remaining dirt or water. Be careful not to use too much pressure, as this can damage the filter.

Important Note: Some Stihl BG86 models use foam air filters. These are cleaned in the same way, but it’s even more important to be gentle. Foam filters are more delicate and can tear easily.

Personal Story: I once tried to speed up the drying process by putting a foam air filter in the dryer. Big mistake! It came out shrunken and misshapen. Learn from my experience – patience is key.

Pro Tip #3: When to Replace Your Air Filter

While cleaning can extend the life of your air filter, there comes a point when it needs to be replaced. Here are some signs that it’s time for a new filter:

The filter is visibly damaged. Tears, holes, or cracks are a clear indication that it’s time to replace it.
The filter is heavily soiled and doesn’t come clean. If you’ve tried cleaning it multiple times and it’s still covered in dirt, it’s time for a new one.
The filter material is deteriorating. If the foam is crumbling or the paper is falling apart, it’s time to replace it.
Your blower is still bogging down even after cleaning the filter. This could indicate that the filter is no longer effectively filtering out contaminants.

Choosing the Right Replacement Filter:

When buying a new air filter, make sure to get the correct one for your Stihl BG86 model. Check your owner’s manual for the part number. I always recommend using genuine Stihl parts, as they are designed to fit properly and provide optimal performance. Aftermarket filters can sometimes be of lower quality and may not fit correctly.

Cost-Benefit Analysis: A genuine Stihl air filter might cost a bit more upfront, but it will likely last longer and provide better protection for your engine. This can save you money in the long run by preventing costly repairs.

Pro Tip #4: Oiling Foam Air Filters (If Applicable)

Some Stihl BG86 models use foam air filters that require oiling. This oil helps to trap dirt and debris, preventing them from entering the engine. If your blower has a foam air filter, make sure to oil it properly after cleaning.

How to Oil a Foam Air Filter:

Clean the filter as described above.
Allow the filter to dry completely.
Apply a small amount of air filter oil to the filter. You can purchase air filter oil at most auto parts stores or online.
Knead the oil into the filter evenly. Make sure the entire filter is coated, but don’t over-oil it.
Squeeze out any excess oil. The filter should be damp, not dripping.

Important Note: Use only air filter oil specifically designed for foam air filters. Don’t use motor oil or other types of oil, as these can damage the filter.

Unique Insight: I’ve found that using a small plastic bag to oil the filter can help to keep your hands clean. Just put the filter in the bag, add the oil, and knead it through the bag.

Pro Tip #5: Air Filter Cover Maintenance

Don’t forget about the air filter cover! This often-overlooked component plays a crucial role in protecting the air filter and ensuring a proper seal.

Things to Check:

Cracks or damage: Inspect the cover for any cracks or damage. If the cover is damaged, it may not seal properly, allowing dirt and debris to enter the engine.
Seal: Make sure the seal around the cover is in good condition. If the seal is worn or damaged, it won’t provide a tight seal.
Cleanliness: Clean the cover regularly to remove any dirt or debris.

Real-World Example: I once had a BG86 that was constantly bogging down, even after cleaning the air filter. It turned out that the air filter cover was cracked, allowing dirt to bypass the filter. Replacing the cover solved the problem instantly.

Beyond the Air Filter: Other Potential Causes of Bogging

While a dirty air filter is often the culprit, it’s not the only thing that can cause a Stihl BG86 to bog down. Here are some other potential causes:

Spark Plug Issues: A fouled or worn spark plug can cause the engine to misfire, leading to bogging.
Fuel Problems: Old or contaminated fuel can also cause problems. I always recommend using fresh, high-quality fuel and adding a fuel stabilizer to prevent problems.
Carburetor Problems: A dirty or malfunctioning carburetor can disrupt the fuel-air mixture, leading to bogging.
Exhaust Issues: A clogged exhaust port or spark arrestor can restrict airflow and cause the engine to bog down.

Troubleshooting Tip: If you’ve cleaned or replaced the air filter and your blower is still bogging down, try checking the spark plug, fuel, and exhaust system. If you’re not comfortable working on these components yourself, it’s best to take the blower to a qualified technician.

Industry Statistics: According to a recent survey of small engine repair shops, carburetor problems are the leading cause of engine bogging in handheld power equipment.

Wood Anatomy and Properties: An Unexpected Connection

You might be wondering what wood anatomy and properties have to do with fixing your Stihl BG86. Well, think about it this way: the type of work you’re doing with your blower directly impacts the amount of dust and debris it’s exposed to.

For example, if you’re using your BG86 to clean up after cutting hardwoods like oak or maple, you’re likely to generate more fine dust than if you’re cleaning up after cutting softwoods like pine or fir. This is because hardwoods tend to have denser cell structures and produce finer particles when cut.

Understanding Wood Density:

Hardwoods: Generally denser and heavier than softwoods. This density contributes to the production of finer dust particles.
Softwoods: Less dense and lighter than hardwoods. They tend to produce larger, less abrasive particles.

Knowing the type of wood you’re working with can help you anticipate the amount of dust your blower will be exposed to and adjust your maintenance schedule accordingly.

Logging Tool Selection and Maintenance Best Practices

While we’re on the topic of tools, let’s talk about logging tool selection and maintenance. Choosing the right tools for the job and keeping them in good condition is essential for safety and efficiency.

Chainsaws:

Selection: Choose a chainsaw that’s appropriate for the size of the trees you’ll be cutting. A small chainsaw is fine for limbing and small trees, but you’ll need a larger saw for felling larger trees.
Maintenance: Keep your chainsaw chain sharp and properly lubricated. Check the bar and chain regularly for wear and damage.

Axes and Splitting Mauls:

Selection: Choose an axe or maul that’s comfortable to swing and has the right weight for the type of wood you’ll be splitting.
Maintenance: Keep the blade sharp and free of rust. Inspect the handle regularly for cracks or damage.

Personal Story: I once tried to fell a large oak tree with a chainsaw that was too small for the job. It was a slow, frustrating, and ultimately dangerous experience. I learned my lesson – always use the right tool for the job.

Firewood Seasoning Techniques and Safety Considerations

Once you’ve felled and bucked your trees, it’s time to season the firewood. Seasoning is the process of drying the wood to reduce its moisture content. This makes the wood easier to light and burn more efficiently.

Ideal Moisture Content: Firewood should have a moisture content of 20% or less for optimal burning.

Seasoning Techniques:

Stacking: Stack the firewood in a single row, off the ground, and in a sunny, well-ventilated location.
Covering: Cover the top of the stack to protect it from rain and snow.
Time: Allow the wood to season for at least six months, and preferably longer.

Data Point: Studies have shown that properly seasoned firewood can produce up to 50% more heat than green firewood.

Safety Considerations:

Wear safety glasses and gloves when handling firewood.
Be careful when lifting heavy logs.
Stack the firewood in a stable manner to prevent it from falling.

Project Planning and Execution: A Holistic Approach

When tackling any wood processing or firewood preparation project, it’s essential to have a solid plan in place. This will help you stay organized, safe, and efficient.

Key Planning Steps:

Assess the project: Determine the scope of the project, the resources you’ll need, and the potential hazards.
Develop a plan: Create a detailed plan that outlines the steps you’ll take to complete the project.
Gather your tools and materials: Make sure you have all the necessary tools and materials on hand before you start.
Implement the plan: Follow your plan carefully and make adjustments as needed.
Evaluate the results: Once the project is complete, evaluate the results and identify areas for improvement.

Actionable Advice: Before starting any project, take the time to walk the site and identify any potential hazards, such as overhead power lines, uneven terrain, or wildlife.

Conclusion: Keeping Your BG86 Humming

So, there you have it: five pro tips for fixing a bogging Stihl BG86. Remember, regular inspection, proper cleaning, timely replacement, correct oiling (if applicable), and air filter cover maintenance are all crucial for keeping your blower running smoothly.

By following these tips, you can extend the life of your BG86, improve its performance, and save yourself a lot of frustration. And don’t forget to consider the other potential causes of bogging, such as spark plug issues, fuel problems, carburetor problems, and exhaust issues.

Now get out there and get that blower roaring! And remember, a little maintenance goes a long way. Your Stihl BG86 will thank you for it.

Stihl BG86 Air Filter Fixes (5 Pro Tips to Stop Bogging)