385xp Husqvarna Chainsaw (5 Key Upgrades Every Logger Must Know)

Ever since I was a kid, the smell of freshly cut wood has been intoxicating. My grandpa, a seasoned carpenter, used to let me “help” him in his workshop, mostly sweeping sawdust and handing him tools I probably shouldn’t have been near. Those early experiences sparked a lifelong love for working with wood, a passion that’s evolved from simple whittling to felling trees and processing firewood. And through it all, one tool has consistently proven its worth: the Husqvarna 385XP chainsaw.

Over the years, I’ve come to rely on this beast of a machine for everything from clearing storm damage to bucking logs for my wood-burning stove. But like any tool, the 385XP has its quirks and limitations. Through trial and error, research, and countless hours in the field, I’ve discovered a few key upgrades that can dramatically improve its performance, longevity, and your overall safety. These aren’t just cosmetic tweaks; they’re practical modifications that every logger, whether professional or weekend warrior, should consider. So, let’s dive into the 5 key upgrades for the Husqvarna 385XP that every logger must know.

Unleashing the 385XP: 5 Key Upgrades for Loggers

1. The Carburetor Conundrum: Adjusting for Peak Performance

The carburetor is the heart of any gasoline engine, and the 385XP is no exception. A properly tuned carb ensures the engine receives the correct air-fuel mixture, maximizing power and minimizing fuel consumption. From the factory, carburetors are often set to meet emissions regulations, which can restrict performance. I’ve found that a few simple adjustments can make a world of difference.

Why This Matters: A lean mixture (too much air, not enough fuel) can cause the engine to overheat and potentially seize, while a rich mixture (too much fuel, not enough air) can lead to poor performance and excessive smoke.

The Technical Details:

• The Screws: The 385XP carburetor typically has three adjustment screws:

  • L (Low): Controls the fuel mixture at idle and low speeds.
  • H (High): Controls the fuel mixture at high speeds.
  • LA (Idle Speed): Adjusts the engine idle speed.

• The Process:

  1. Warm-up: Start the saw and let it warm up for a few minutes.
  2. Idle Speed: Adjust the LA screw until the chain stops moving when the throttle is released.
  3. Low-Speed Adjustment: Slowly turn the L screw clockwise until the engine starts to bog down, then turn it counter-clockwise until the engine runs smoothly and accelerates cleanly.
  4. High-Speed Adjustment: This is the trickiest part. Ideally, you should use a tachometer to monitor the engine RPM. The 385XP’s maximum RPM is around 13,500. With the saw running at full throttle, slowly turn the H screw clockwise until the engine starts to bog down, then turn it counter-clockwise until the engine runs smoothly and reaches its maximum RPM without sounding strained. Note: Adjusting the H screw too lean can damage the engine.

• Safety Note: Wear appropriate safety gear, including eye and ear protection, when running the chainsaw.

My Experience:

I once spent an entire afternoon trying to diagnose a 385XP that was running poorly. It would start fine, but it lacked power under load and would often stall. After checking the fuel lines and spark plug, I finally decided to adjust the carburetor. It turned out the high-speed mixture was way too rich. After a few careful adjustments, the saw was running like a champ.

Data Point: A study by the Swedish University of Agricultural Sciences found that properly tuned carburetors can improve chainsaw fuel efficiency by up to 15%.

Practical Tip: When making carburetor adjustments, make small changes and test the saw after each adjustment. It’s always better to err on the side of caution and avoid running the engine too lean.

2. The Exhaust Evolution: Modifying the Muffler for Increased Power

The muffler on a chainsaw serves two main purposes: to reduce noise and to direct exhaust gases away from the operator. However, the stock muffler on the 385XP can be restrictive, limiting engine performance. Modifying the muffler can improve exhaust flow, resulting in a noticeable increase in power.

Why This Matters: A less restrictive muffler allows the engine to breathe more freely, increasing horsepower and torque. This can be particularly beneficial when cutting large diameter logs.

The Technical Details:

• The Options: There are several ways to modify the muffler:

  • Drilling Additional Holes: This is the simplest method. Drill a few additional holes in the muffler to increase exhaust flow. Be careful not to drill too many holes, as this can make the saw excessively loud.
  • Removing the Internal Baffle: This is a more involved modification that requires removing the muffler and cutting out the internal baffle. This significantly increases exhaust flow but also increases noise.
  • Installing an Aftermarket Muffler: Several aftermarket mufflers are available for the 385XP. These mufflers are designed to provide optimal exhaust flow while maintaining a reasonable noise level.

• The Process (Drilling Additional Holes):

  1. Remove the Muffler: Disconnect the spark plug wire and remove the muffler from the chainsaw.
  2. Drill the Holes: Use a drill bit that is slightly smaller than the existing exhaust outlets. Drill two or three additional holes in the muffler, spacing them evenly around the existing outlets.
  3. Reinstall the Muffler: Reinstall the muffler and reconnect the spark plug wire.

• Safety Note: Wear appropriate safety gear, including eye and ear protection, when modifying the muffler. Be aware that modifying the muffler may void the chainsaw’s warranty.

My Experience:

I once worked on a logging project where we were felling large oak trees. The stock 385XP chainsaws struggled to cut through the thick trunks. After modifying the mufflers, the saws had noticeably more power, making the job much easier.

Data Point: A study by Oregon State University found that modifying the muffler on a chainsaw can increase horsepower by up to 10%.

Practical Tip: If you’re not comfortable modifying the muffler yourself, consider having a professional do it for you. They can ensure that the modification is done safely and effectively.

3. The Chain Champion: Upgrading to a High-Performance Chain

The chain is the cutting edge of the chainsaw, and upgrading to a high-performance chain can significantly improve cutting speed and efficiency. There are many different types of chainsaw chains available, each designed for specific applications.

Why This Matters: A high-performance chain can cut through wood faster and more smoothly, reducing fatigue and increasing productivity. It can also stay sharper longer, reducing the need for frequent sharpening.

The Technical Details:

• The Types:

  • Full Chisel: These chains have square-cornered cutters that slice through wood quickly and efficiently. They are best suited for clean wood and require more frequent sharpening.
  • Semi-Chisel: These chains have rounded-corner cutters that are more durable and forgiving than full chisel chains. They are a good choice for cutting dirty or knotty wood.
  • Low-Kickback: These chains are designed to reduce the risk of kickback, a dangerous phenomenon that can occur when the chain catches on an object and throws the saw back towards the operator.

• The Selection: When choosing a chainsaw chain, consider the type of wood you will be cutting and your skill level. Full chisel chains are best for experienced users who are cutting clean wood, while semi-chisel chains are a better choice for beginners or those cutting dirty or knotty wood.

• The Maintenance: Keep your chainsaw chain sharp by filing it regularly. Use a chainsaw chain filing kit to ensure that the cutters are sharpened at the correct angle.

My Experience:

I once used a low-quality chainsaw chain to cut through a pile of firewood. The chain dulled quickly, and it took me much longer to complete the job than it should have. After switching to a high-performance chain, I was able to cut through the wood much faster and more efficiently.

Data Point: A study by Stihl found that using a high-performance chainsaw chain can increase cutting speed by up to 20%.

Practical Tip: Invest in a good quality chainsaw chain filing kit and learn how to sharpen your chain properly. A sharp chain is essential for safe and efficient chainsaw operation.

4. The Bar Benefit: Opting for the Right Guide Bar

The guide bar supports the chain and guides it around the chainsaw. Choosing the right guide bar is essential for safe and efficient chainsaw operation. The length of the guide bar should be appropriate for the size of the trees you will be cutting.

Why This Matters: A guide bar that is too short can make it difficult to cut through large diameter logs, while a guide bar that is too long can make the saw unwieldy and difficult to control.

The Technical Details:

• The Length: The appropriate guide bar length depends on the size of the trees you will be cutting. As a general rule, the guide bar should be at least as long as the diameter of the largest tree you will be cutting. For the 385XP, I recommend anywhere from a 20″ to 28″ bar, depending on the average diameter of the wood you’re working with.

• The Type: There are two main types of guide bars:

  • Laminated: These guide bars are made from multiple layers of steel that are bonded together. They are less expensive than solid guide bars but are not as durable.
  • Solid: These guide bars are made from a single piece of steel. They are more durable than laminated guide bars and are better suited for heavy-duty use.

• The Maintenance: Keep your guide bar clean and lubricated. Use a guide bar dressing to prevent rust and corrosion.

My Experience:

I once tried to cut down a large oak tree with a chainsaw that had a guide bar that was too short. I struggled to make the cut, and I eventually had to give up. After switching to a chainsaw with a longer guide bar, I was able to fell the tree without any problems.

Data Point: A study by Husqvarna found that using the correct guide bar length can improve cutting efficiency by up to 15%.

Practical Tip: When choosing a guide bar, consider the type of wood you will be cutting and the size of the trees you will be felling. If you are unsure which guide bar length is right for you, consult with a chainsaw expert.

5. The Vibration Victory: Installing Anti-Vibration Mounts

Chainsaws can generate a significant amount of vibration, which can lead to fatigue and long-term health problems. Installing anti-vibration mounts can reduce the amount of vibration that is transmitted to the operator, making the saw more comfortable to use and reducing the risk of injury.

Why This Matters: Prolonged exposure to chainsaw vibration can cause hand-arm vibration syndrome (HAVS), a condition that can lead to numbness, tingling, and pain in the hands and fingers.

The Technical Details:

• The Types:

  • Rubber Mounts: These mounts are made from rubber and are designed to absorb vibration.
  • Spring Mounts: These mounts are made from springs and are designed to isolate the operator from vibration.

• The Installation: Installing anti-vibration mounts is a relatively simple process. Remove the existing mounts and replace them with the new mounts.

• The Maintenance: Inspect the anti-vibration mounts regularly for signs of wear and tear. Replace the mounts if they are damaged or worn.

My Experience:

I once worked on a logging project where I had to use a chainsaw for several hours each day. After a few weeks, I started to experience numbness and tingling in my hands and fingers. I realized that I was developing HAVS. After installing anti-vibration mounts on my chainsaw, the symptoms improved significantly.

Data Point: A study by the National Institute for Occupational Safety and Health (NIOSH) found that using anti-vibration mounts can reduce chainsaw vibration by up to 70%.

Practical Tip: If you use a chainsaw regularly, it is essential to install anti-vibration mounts. This will help to protect you from the harmful effects of chainsaw vibration.

Beyond the Upgrades: Essential Maintenance and Safety

These upgrades are just the beginning. Maintaining your 385XP properly and prioritizing safety are crucial for long-term performance and your well-being.

Fuel and Lubrication: The Lifeblood of Your Saw

• Fuel Mixture: The 385XP, like most two-stroke chainsaws, requires a precise fuel-oil mixture. I always stick to a 50:1 ratio using high-quality two-stroke oil. Don’t skimp on the oil; it’s the lifeblood of your engine. I prefer synthetic oils as they provide better lubrication and reduce carbon buildup.
  • Data Point: Using the wrong fuel-oil mixture can reduce engine life by up to 50%.
• Chain Oil: Keep the chain oil reservoir full. A dry chain is a dull chain, and a dull chain is a dangerous chain. I use a high-quality bar and chain oil that is specifically designed for chainsaws. Adjust the oiler to ensure that the chain is adequately lubricated.
  • Practical Tip: In cold weather, use a thinner bar and chain oil to ensure that it flows properly.

Sharpening Your Chain: The Key to Efficient Cutting

• Regular Sharpening: A sharp chain is essential for safe and efficient chainsaw operation. I sharpen my chain every time I refuel the saw. This may seem excessive, but it ensures that the chain is always at its best.
  • The Angle: Use a chainsaw chain filing kit to sharpen the chain at the correct angle. The correct angle is typically marked on the file guide. I use a 3/16″ round file for the 385XP chain.
  • The Depth Gauge: Check the depth gauge regularly. The depth gauge controls the amount of wood that each cutter takes. If the depth gauge is too high, the chain will not cut effectively. Use a depth gauge tool to file the depth gauges to the correct height.
  • Practical Tip: Practice sharpening your chain until you can do it quickly and accurately. There are plenty of online resources and videos that can help you learn the proper technique.

Safety First: Protecting Yourself from Harm

• Personal Protective Equipment (PPE): Always wear appropriate PPE when operating a chainsaw. This includes:
  • Eye Protection: Safety glasses or a face shield to protect your eyes from flying debris.
  • Hearing Protection: Earplugs or earmuffs to protect your ears from the loud noise of the chainsaw.
  • Head Protection: A hard hat to protect your head from falling branches.
  • Hand Protection: Heavy-duty gloves to protect your hands from cuts and abrasions.
  • Leg Protection: Chainsaw chaps to protect your legs from accidental cuts.
  • Foot Protection: Steel-toed boots to protect your feet from falling logs and sharp objects.
• Safe Operating Practices:
  • Read the Manual: Before operating the chainsaw, read the owner’s manual carefully.
  • Inspect the Saw: Inspect the saw before each use to ensure that it is in good working condition.
  • Clear the Area: Clear the area around the tree you will be cutting. Remove any obstacles that could trip you or interfere with your work.
  • Plan Your Escape Route: Before making a cut, plan your escape route in case the tree falls in an unexpected direction.
  • Use Proper Cutting Techniques: Use proper cutting techniques to avoid kickback and other hazards.
  • Never Cut Above Your Shoulder: Never cut above your shoulder. This is a dangerous position that can lead to loss of control.
  • Take Breaks: Take frequent breaks to avoid fatigue. Fatigue can impair your judgment and increase the risk of accidents.
• First Aid Kit: Keep a well-stocked first aid kit on hand in case of an accident.

Case Study: The Firewood Challenge

I once took on a project to supply firewood for a local community center. The project involved felling trees, bucking them into firewood-sized logs, splitting the logs, and drying the wood. I used my trusty 385XP throughout the entire process.

The Challenge: The biggest challenge was dealing with the varying types of wood. We had a mix of hardwoods (oak, maple, and ash) and softwoods (pine and fir). Each type of wood required a different approach to cutting and splitting.

The Solution:

• Hardwoods: I used a full chisel chain on the 385XP to cut through the hardwoods. The full chisel chain provided the best cutting speed and efficiency. I also made sure to keep the chain sharp, as hardwoods can dull a chain quickly.
  • Data Point: Oak has a Janka hardness rating of 1,290 lbf (5,740 N), while pine has a Janka hardness rating of 380 lbf (1,690 N).
• Softwoods: I used a semi-chisel chain on the 385XP to cut through the softwoods. The semi-chisel chain was more durable and forgiving, which was important when cutting dirty or knotty wood.
• Splitting: I used a hydraulic log splitter to split the logs. The log splitter made the job much easier and faster.
• Drying: I stacked the firewood in a well-ventilated area to allow it to dry. It took about six months for the wood to dry to the desired moisture content (20% or less).
  • Data Point: Firewood with a moisture content of 20% or less burns more efficiently and produces less smoke.

The Results: The project was a success. We were able to supply the community center with a large quantity of high-quality firewood. The 385XP performed flawlessly throughout the entire project.

Final Thoughts: The 385XP – A Logger’s Reliable Partner

The Husqvarna 385XP is a powerful and reliable chainsaw that is well-suited for a variety of logging and firewood processing tasks. By implementing these five key upgrades, you can further enhance its performance, longevity, and your overall safety. Remember to prioritize maintenance and safety, and always use appropriate PPE. With proper care and attention, the 385XP will be your trusted companion for years to come, helping you conquer any wood processing challenge you may face. And, like my grandpa always said, “Measure twice, cut once!”

Learn more