Stihl MS 310 Parts Guide (5 Expert Tips For Optimal Bar Length)

Stihl MS 310 Parts Guide: 5 Expert Tips for Optimal Bar Length

The Stihl MS 310 is a workhorse of a chainsaw, known for its reliability and power. But even the best saw can be hampered by an improperly sized bar. I’ve seen firsthand how the wrong bar can lead to wasted energy, increased wear and tear, and even dangerous situations. This guide will walk you through the key considerations for choosing the right bar length, helping you maximize your MS 310’s performance and ensuring your safety.

1. Understanding Bar Length and Its Impact

Bar length, measured from the tip of the bar to where it enters the powerhead, dictates the maximum diameter of wood you can cut in a single pass. It significantly impacts the saw’s leverage, cutting speed, and overall maneuverability. A longer bar allows you to fell larger trees and cut thicker logs, but it also requires more power from the saw and can be more challenging to control. A shorter bar is easier to handle and ideal for limbing and smaller tasks, but it limits the size of wood you can process.

In my early days, I made the mistake of using a bar that was too long for my saw. I quickly learned that it bogged down the engine and made the saw difficult to control, especially when cutting at awkward angles. This experience taught me the importance of matching the bar length to the saw’s power and the type of work I was doing.

2. Stihl MS 310: Recommended Bar Lengths

Stihl officially recommends bar lengths between 16 inches and 20 inches for the MS 310. However, the ideal length depends on your specific needs and the type of wood you typically cut.

16-inch Bar: This is a great all-around choice for the MS 310. It provides a good balance of cutting power and maneuverability, making it suitable for limbing, felling small to medium-sized trees, and cutting firewood.
18-inch Bar: A slightly longer bar offers increased reach and cutting capacity, making it ideal for felling medium-sized trees and processing larger logs. However, it will require more power from the saw and may be less maneuverable than the 16-inch bar.
20-inch Bar: This is the longest recommended bar length for the MS 310. It’s best suited for felling larger trees and processing very thick logs. However, it demands the most power from the saw and requires more skill and experience to handle safely.

Takeaway: Consider the common tasks you perform with your chainsaw. If you mostly cut small to medium sized trees, a 16 or 18 inch bar is ideal. For larger trees, the 20 inch is a good choice.

3. Factors to Consider When Choosing Bar Length

Several factors should influence your choice of bar length, including the type of wood you cut, your skill level, and the terrain you work in.

Type of Wood: Hardwoods like oak and maple require more power to cut than softwoods like pine and fir. If you primarily cut hardwoods, you may want to choose a shorter bar to avoid bogging down the saw. Softer woods can accommodate a longer bar.
Skill Level: If you’re a beginner, it’s best to start with a shorter bar. A shorter bar is easier to control and less likely to kickback, making it a safer option for inexperienced users. As your skills improve, you can gradually move to a longer bar if needed.
Terrain: Working in dense forests or on uneven terrain can make it difficult to maneuver a long bar. In these situations, a shorter bar will provide better control and reduce the risk of accidents.
Saw Condition: A well-maintained saw will perform better with a longer bar than a saw that is overdue for maintenance.

Example: I once worked on a project felling oak trees in a heavily wooded area. The dense undergrowth and uneven terrain made it challenging to maneuver my saw with a 20-inch bar. I switched to an 18-inch bar, which significantly improved my control and reduced the risk of snagging the bar on branches and roots.

Takeaway: Carefully consider the type of wood you cut, your skill level, and the terrain you work in before choosing a bar length.

4. Assessing Your Stihl MS 310’s Power

The Stihl MS 310 is a powerful saw, but it has its limits. Overloading the saw with a bar that’s too long can lead to reduced performance, increased wear and tear, and even engine damage. Before choosing a bar length, it’s essential to assess your saw’s power and ensure it can handle the workload.

Engine Condition: A well-maintained engine will deliver more power than an engine that’s in poor condition. Check the air filter, spark plug, and fuel filter to ensure they are clean and functioning properly.
Chain Sharpness: A dull chain requires more power to cut, which can bog down the saw, especially with a longer bar. Keep your chain sharp and properly tensioned to maximize cutting efficiency.
Cutting Technique: Using proper cutting techniques can reduce the strain on the saw and improve its performance. Avoid forcing the saw through the wood and let the chain do the work.

Pro Tip: If you’re consistently bogging down your MS 310 with a particular bar length, it’s a sign that the bar is too long, or that your saw may require maintenance.

Takeaway: Make sure your saw is in good condition and that you are using proper cutting techniques before opting for a longer bar.

5. Upgrading Your Chain for Optimal Performance

The chain you use can significantly impact your saw’s performance, especially when using a longer bar. Upgrading to a higher-quality chain can improve cutting speed, reduce vibration, and extend the life of your bar and chain.

Chain Type: Different chain types are designed for different applications. For example, a ripping chain is designed for cutting with the grain, while a full chisel chain is designed for fast, aggressive cutting. Choose a chain type that’s appropriate for the type of wood you’re cutting and the tasks you’re performing.
Chain Pitch and Gauge: The chain pitch and gauge must match the specifications of your bar and sprocket. Using the wrong pitch or gauge can damage your saw and create a safety hazard.
Chain Maintenance: Regular chain maintenance is essential for optimal performance. Keep your chain sharp, properly lubricated, and tensioned to maximize cutting efficiency and extend its lifespan.

Personal Story: I once used a low-quality chain on my MS 310 while felling some large pine trees. The chain dulled quickly, requiring frequent sharpening, and it vibrated excessively, causing fatigue in my hands and arms. I switched to a high-quality chain with a more aggressive tooth design, and the difference was remarkable. The saw cut faster, vibrated less, and the chain stayed sharp much longer.

Takeaway: Investing in a high-quality chain and maintaining it properly can significantly improve your saw’s performance and extend the life of your bar and chain.

Deep Dive: Understanding Stihl MS 310 Specifications

To make informed decisions about bar length, it’s crucial to understand the technical specifications of your Stihl MS 310. This section will break down the key specs and how they relate to bar selection.

Engine Specifications

Engine Displacement: 59 cc
Engine Power: 3.2 kW (4.3 bhp)
Engine Type: 2-stroke

These specs tell us the engine’s size and power output. A larger engine displacement and higher power output indicate the saw can handle longer bars. The MS 310’s 59cc engine is well-suited for the recommended bar lengths of 16 to 20 inches, but pushing beyond that could strain the engine.

Bar and Chain Specifications

Recommended Bar Length: 16-20 inches
Chain Pitch: .325 inch
Chain Gauge: .063 inch

These specs are crucial for selecting the correct bar and chain. Always use a bar and chain with the recommended pitch and gauge to ensure proper fit and function. Using the wrong pitch or gauge can damage the saw and create a safety hazard.

Weight

Weight (Powerhead Only): 12.3 lbs

The weight of the powerhead is an important consideration, especially when choosing a longer bar. A longer bar will add additional weight to the saw, making it more tiring to use for extended periods. If you’re concerned about weight, consider opting for a shorter bar or using a lighter-weight bar material.

Takeaway: Understanding your saw’s specifications will help you choose a bar length that’s appropriate for its power and capabilities, ensuring optimal performance and longevity.

Practical Application: Real-World Scenarios and Bar Length Selection

Let’s examine some real-world scenarios and how I would choose the appropriate bar length for my Stihl MS 310.

Scenario 1: Firewood Cutting – Mixed Hardwoods (Oak, Maple, Ash)

Task: Cutting firewood from fallen trees and logs ranging from 8 to 20 inches in diameter.

Bar Length Recommendation: 18-inch bar

Rationale: The mixed hardwoods require a good amount of power to cut. The 18-inch bar provides enough reach to handle most of the logs, while still allowing for good maneuverability. I’d use a full chisel chain for aggressive cutting and keep it sharp.

Scenario 2: Limbing and Pruning – Softwoods (Pine, Fir)

Task: Limbing felled trees and pruning branches up to 10 inches in diameter.

Bar Length Recommendation: 16-inch bar

Rationale: The 16-inch bar is ideal for limbing and pruning due to its lightweight and maneuverability. The softwoods are easier to cut, so the shorter bar won’t be a limiting factor. I’d use a low-kickback chain for added safety.

Scenario 3: Felling Large Trees – Hardwoods (Oak, Hickory)

Task: Felling large oak and hickory trees with diameters up to 24 inches.

Bar Length Recommendation: 20-inch bar

Rationale: The 20-inch bar provides the necessary reach to fell these large trees. However, I would only recommend this for experienced users who are comfortable handling a longer bar. I’d ensure the saw is in top condition and use a high-quality chain with a sharp cutting edge.

Takeaway: These scenarios demonstrate how the ideal bar length can vary depending on the specific task and type of wood. Always consider the factors discussed earlier in this guide to make the best choice for your situation.

Advanced Techniques: Maximizing Your Stihl MS 310’s Potential

Once you’ve chosen the right bar length, you can further optimize your Stihl MS 310’s performance by using advanced cutting techniques and maintenance practices.

Bore Cutting

Bore cutting is a technique used to fell large trees or cut thick logs by boring a hole through the center of the wood. This technique requires a longer bar and a skilled operator. It’s important to practice bore cutting in a safe and controlled environment before attempting it in the field.

Safety Note: Bore cutting can be dangerous if not performed correctly. Always use proper safety gear and be aware of the potential for kickback.

Milling

Milling is the process of cutting logs into lumber using a chainsaw. This technique requires a specialized milling attachment and a ripping chain. Milling can be a great way to produce your own lumber for woodworking projects or construction.

Equipment: Chainsaw mill attachment, ripping chain, safety gear.

Chain Sharpening and Maintenance

A sharp chain is essential for optimal performance and safety. Learn how to sharpen your chain properly using a file or a chain grinder. Regular maintenance, such as cleaning and lubricating the chain, will also extend its lifespan.

Tools: Chainsaw file, file guide, chain grinder, bar oil, cleaning brush.

Takeaway: Mastering advanced cutting techniques and maintenance practices will allow you to get the most out of your Stihl MS 310 and tackle a wider range of wood processing tasks.

Common Mistakes to Avoid When Choosing Bar Length

Choosing the wrong bar length can lead to several problems, including reduced performance, increased wear and tear, and even safety hazards. Here are some common mistakes to avoid:

Using a Bar That’s Too Long: This is a common mistake, especially among beginners. A bar that’s too long can bog down the saw, make it difficult to control, and increase the risk of kickback.
Ignoring the Type of Wood: Different types of wood require different amounts of power to cut. Choosing a bar length that’s not appropriate for the type of wood you’re cutting can lead to reduced performance and increased wear and tear.
Neglecting Maintenance: A poorly maintained saw will not perform well with any bar length. Keep your saw clean, lubricated, and properly tuned to ensure optimal performance.
Ignoring Safety Precautions: Always wear proper safety gear, including eye protection, hearing protection, and gloves, when operating a chainsaw. Be aware of the potential for kickback and other hazards.

Example: I once saw a novice trying to fell a large oak tree with a Stihl MS 170 (a much smaller saw than the MS 310) and a 20-inch bar. The saw was completely underpowered, and the operator was struggling to control it. It was a dangerous situation that could have easily been avoided by using a smaller bar and a more powerful saw.

Takeaway: Avoid these common mistakes to ensure your safety and maximize your saw’s performance.

Safety First: Prioritizing Safe Chainsaw Operation

Operating a chainsaw can be dangerous if proper safety precautions are not followed. Always prioritize safety when working with a chainsaw, regardless of the bar length you’re using.

Personal Protective Equipment (PPE)

Eye Protection: Wear safety glasses or a face shield to protect your eyes from flying debris.
Hearing Protection: Wear earplugs or earmuffs to protect your hearing from the loud noise of the chainsaw.
Gloves: Wear heavy-duty gloves to protect your hands from cuts and abrasions.
Chaps: Wear chainsaw chaps to protect your legs from accidental cuts.
Boots: Wear sturdy boots with good ankle support to protect your feet and ankles.
Helmet: A helmet is advisable especially when felling trees.

Safe Cutting Practices

Maintain a Firm Grip: Always maintain a firm grip on the chainsaw with both hands.
Keep Your Balance: Maintain your balance and avoid cutting in awkward positions.
Be Aware of Your Surroundings: Be aware of your surroundings and avoid cutting near obstacles or other people.
Avoid Kickback: Be aware of the potential for kickback and take steps to avoid it.
Never Cut Above Shoulder Height: Cutting above shoulder height is dangerous and can lead to loss of control.
Take Breaks: Take frequent breaks to avoid fatigue.

Chainsaw Maintenance

Keep Your Chain Sharp: A sharp chain is essential for safe and efficient cutting.
Lubricate Your Chain: Keep your chain lubricated to reduce friction and wear.
Inspect Your Chainsaw Regularly: Inspect your chainsaw regularly for any signs of damage or wear.
Store Your Chainsaw Safely: Store your chainsaw in a safe place where it cannot be accessed by children or unauthorized users.

Important Note: Always consult the owner’s manual for your Stihl MS 310 for specific safety instructions and recommendations.

Takeaway: Safety should always be your top priority when operating a chainsaw. By following these safety precautions, you can reduce the risk of accidents and injuries.

The Future of Chainsaw Technology and Bar Length Selection

Chainsaw technology is constantly evolving, with new innovations emerging all the time. These advancements are likely to impact bar length selection in the future.

Battery-Powered Chainsaws

Battery-powered chainsaws are becoming increasingly popular due to their convenience and environmental friendliness. As battery technology improves, these saws are becoming more powerful and capable of handling longer bars.

Lighter-Weight Materials

Manufacturers are using lighter-weight materials, such as magnesium and carbon fiber, to reduce the weight of chainsaws and bars. This makes it easier to handle longer bars and reduces fatigue.

Smart Chainsaws

Some chainsaws are now equipped with sensors and electronic controls that can optimize performance and improve safety. These “smart” chainsaws can automatically adjust the engine speed and chain speed based on the cutting conditions, which can help to prevent bogging down and reduce the risk of kickback.

Variable Bar Lengths

I anticipate the emergence of chainsaws with variable bar length options. Imagine a system where you can adjust the bar length on the fly, adapting to different cutting tasks without needing to swap out the entire bar. This would provide unparalleled versatility.

Takeaway: As chainsaw technology continues to advance, bar length selection will become even more complex. Stay informed about the latest innovations and choose a bar length that’s appropriate for your specific needs and the capabilities of your saw.

Conclusion: Mastering Bar Length Selection for Your Stihl MS 310

Choosing the right bar length for your Stihl MS 310 is a critical decision that impacts performance, safety, and the longevity of your equipment. By considering the factors outlined in this guide, including the type of wood you cut, your skill level, and your saw’s power, you can select a bar length that’s perfectly suited to your needs.

Remember to prioritize safety at all times and to maintain your saw properly. With the right bar length and proper technique, you can unlock the full potential of your Stihl MS 310 and tackle any wood processing task with confidence.

From my own experience, I can attest that the right bar length makes a world of difference. It transforms a potentially frustrating and tiring task into an efficient and enjoyable one. I encourage you to experiment with different bar lengths within the recommended range for your MS 310 and find what works best for you. Happy cutting!