Craftsman 18 42cc Chainsaw Model Number (5 Insider Tips)

Upgrading your chainsaw game is like adding a turbocharger to your old pickup truck – it’s about maximizing performance and efficiency. If you’re reading this, you likely own (or are considering owning) a Craftsman 18-inch, 42cc chainsaw. It’s a solid entry-level saw, perfect for homeowners tackling firewood prep and light storm cleanup. But let’s be honest, it has its limitations. In this guide, I’m going to share some insider tips to squeeze every last bit of performance out of your Craftsman 18″ 42cc chainsaw, making it a more reliable and efficient tool.

Before we dive in, it’s important to understand the current landscape. The global firewood market is booming. A recent report by Global Market Insights projects the global firewood market to reach $1.3 billion by 2028, driven by increasing energy costs and a renewed interest in sustainable heating solutions. This resurgence puts pressure on efficient firewood production, making every improvement to your tools valuable. Chainsaws, like our Craftsman, are at the heart of this process.

I remember the first time I tried to fell a decent-sized oak with a similar saw. It bogged down, smoked a bit, and generally made me question my life choices. That experience taught me the importance of understanding your saw’s limitations and optimizing its performance. These tips aren’t about turning your Craftsman into a professional logging saw; they’re about making it the best Craftsman it can be.

Craftsman 18″ 42cc Chainsaw: 5 Insider Tips for Peak Performance

These aren’t just random suggestions; they’re based on years of experience, countless cords of wood, and a healthy dose of trial and error.

1. Master the Art of Chain Sharpening and Selection

A dull chain is the single biggest performance killer for any chainsaw. It’s like trying to cut butter with a spoon – frustrating and inefficient. According to Oregon Products, a leading chain manufacturer, a sharp chain can increase cutting speed by up to 30%. That’s a significant improvement!

Why Chain Sharpening Matters

Increased Cutting Speed: A sharp chain bites into the wood, making faster, cleaner cuts.
Reduced Strain on the Engine: A dull chain forces the engine to work harder, leading to overheating and potential damage.
Improved Safety: A sharp chain is less likely to kickback, a common cause of chainsaw injuries.
Better Fuel Efficiency: A sharper chain requires less power to cut, reducing fuel consumption.

How to Sharpen Your Chain

I recommend the following steps for sharpening your Craftsman chain:

Secure the Chainsaw: Use a vise to hold the chainsaw securely. This prevents movement and ensures consistent sharpening.
Identify the Correct File Size: Refer to your chainsaw’s manual or the chain packaging to determine the correct file size. Typically, a 5/32″ or 3/16″ round file is suitable for this model.
Use a Filing Guide: A filing guide helps maintain the correct angle and depth while sharpening. This ensures consistent sharpening and prevents damage to the chain.
File Each Tooth: File each tooth using smooth, consistent strokes. Maintain the original angle of the cutting edge. File from the inside of the tooth outwards.
Check the Depth Gauges: Use a depth gauge tool to check the height of the depth gauges (rakers). These control how much wood the chain bites into. File them down slightly if they are too high, according to the manufacturer’s specifications.
Alternate Sides: Alternate sharpening teeth on each side of the chain to maintain balance.
Test the Sharpness: After sharpening, test the chain on a piece of wood. A sharp chain should pull itself into the wood with minimal pressure.

Pro Tip: Invest in a quality chainsaw sharpening kit. It will include the necessary files, guides, and depth gauge tools to keep your chain in top condition. I personally use the Oregon 577744 Chainsaw Sharpening Kit.

Chain Selection: Beyond the Stock Chain

The stock chain that comes with your Craftsman is decent, but there are better options. Consider upgrading to a low-kickback chain like the Oregon 91 series or a similar Stihl Picco Micro chain. These chains offer:

Improved Safety: Reduced risk of kickback.
Smoother Cutting: Enhanced cutting performance, especially in hardwoods.
Increased Durability: Longer lifespan compared to the stock chain.

Data Point: In a study conducted by the University of California, Berkeley, low-kickback chains reduced kickback incidents by 40% compared to standard chains. This highlights the significant safety benefits of upgrading your chain.

2. Fuel and Oil: The Lifeblood of Your Chainsaw

Using the correct fuel and oil mixture is crucial for the longevity and performance of your chainsaw. It’s not just about throwing any old gas in the tank.

Fuel Mixture: Getting it Right

Use High-Octane Fuel: I always recommend using premium gasoline (91 octane or higher) in my chainsaws. It burns cleaner and reduces the risk of engine knocking.
Mix Fuel and Oil Properly: The Craftsman 18″ 42cc chainsaw typically requires a 40:1 fuel-to-oil ratio. This means 40 parts gasoline to 1 part 2-cycle engine oil. Always use a high-quality 2-cycle oil specifically designed for air-cooled engines.
Measure Accurately: Use a measuring container to ensure accurate mixing. Don’t eyeball it! An incorrect mixture can lead to engine damage.
Mix Fresh Fuel Regularly: Gasoline can degrade over time, especially when mixed with oil. I recommend mixing only enough fuel for a few weeks of use. Discard any leftover fuel after a month.

Case Study: I once had a friend who consistently used old, improperly mixed fuel in his chainsaw. The result? A seized engine and a costly repair bill. Don’t make the same mistake!

Oil: Choosing the Right Lubricant

Use Chainsaw Bar and Chain Oil: Never use motor oil or other substitutes. Chainsaw bar and chain oil is specifically formulated to lubricate the chain and bar, reducing friction and wear.
Check the Oil Level Regularly: Before each use, check the oil level in the oil reservoir. Keep it topped up to ensure proper lubrication.
Consider Biodegradable Options: If you’re environmentally conscious, consider using biodegradable bar and chain oil. It’s less harmful to the environment and performs just as well.

Actionable Tip: I mark my fuel can with the date of mixing. This helps me keep track of how old the fuel is and reminds me to mix a fresh batch regularly.

3. Carburetor Adjustment: Fine-Tuning for Optimal Performance

The carburetor controls the air-fuel mixture entering the engine. Over time, it can become misadjusted, leading to poor performance, hard starting, and excessive smoking. Learning to adjust the carburetor is like learning to play a musical instrument – it takes practice, but the results are worth it.

Identifying Carburetor Issues

Hard Starting: The chainsaw is difficult to start, even when warm.
Poor Idle: The engine stalls or runs roughly at idle.
Hesitation: The engine hesitates when you apply the throttle.
Excessive Smoking: The engine produces excessive smoke, indicating a rich fuel mixture.
Lack of Power: The chainsaw lacks power, especially when cutting hardwoods.

Adjusting the Carburetor

Important Safety Note: Always wear safety glasses and gloves when working on your chainsaw.

Locate the Carburetor Adjustment Screws: The carburetor typically has three adjustment screws:
- L (Low-Speed): Controls the fuel mixture at idle and low speeds.
- H (High-Speed): Controls the fuel mixture at high speeds.
- LA (Idle Adjustment): Controls the engine idle speed.
Warm Up the Engine: Start the chainsaw and let it warm up for a few minutes.
Adjust the Idle Speed: Turn the LA screw until the engine idles smoothly without stalling. Refer to your chainsaw’s manual for the recommended idle speed.
Adjust the Low-Speed Mixture: Turn the L screw clockwise until the engine starts to bog down. Then, slowly turn it counterclockwise until the engine runs smoothly and accelerates without hesitation.
Adjust the High-Speed Mixture: This adjustment is more complex and requires a tachometer. Start the chainsaw and run it at full throttle. Use the tachometer to measure the engine speed. Refer to your chainsaw’s manual for the recommended maximum engine speed. Turn the H screw clockwise to lean the mixture (increase engine speed) or counterclockwise to richen the mixture (decrease engine speed). Adjust the H screw until the engine reaches the recommended maximum speed without over-revving.

Warning: Over-revving the engine can cause serious damage. If you are unsure about adjusting the high-speed mixture, consult a qualified chainsaw mechanic.

Troubleshooting Tip: If you can’t get the carburetor adjusted properly, it may be dirty or clogged. Try cleaning the carburetor with carburetor cleaner or replacing it altogether.

4. Bar Maintenance: Extending the Life of Your Cutting System

The bar is the backbone of your chainsaw’s cutting system. Proper maintenance can significantly extend its lifespan and improve cutting performance.

Bar Inspection

Check for Wear: Inspect the bar regularly for wear, especially along the rails. Worn rails can cause the chain to bind and reduce cutting efficiency.
Look for Damage: Check for cracks, bends, or other damage to the bar. A damaged bar can be dangerous to use.
Clean the Bar: Remove any sawdust, debris, or oil buildup from the bar. Use a wire brush or a solvent to clean the bar thoroughly.

Bar Maintenance Procedures

Deburr the Bar Rails: Use a flat file to remove any burrs or sharp edges from the bar rails. This will help prevent the chain from binding.
Dress the Bar Rails: Use a bar rail dresser tool to ensure the bar rails are square and even. This will improve cutting accuracy and reduce wear on the chain.
Flip the Bar Regularly: Flip the bar over periodically to distribute wear evenly. This will extend the lifespan of the bar.
Lubricate the Bar: Ensure the bar is properly lubricated with chainsaw bar and chain oil. This will reduce friction and wear.

Data Point: A well-maintained chainsaw bar can last up to twice as long as a neglected bar. Regular maintenance is a worthwhile investment.

Personal Experience: I once ruined a perfectly good chainsaw bar by neglecting to clean it properly. Sawdust and debris built up in the bar groove, causing the chain to overheat and bind. Learn from my mistake!

5. Strategic Air Filter Maintenance: Breathing Easy for Power

A clean air filter is essential for proper engine performance. A clogged air filter restricts airflow, causing the engine to run rich, lose power, and overheat.

Air Filter Cleaning

Remove the Air Filter: Locate the air filter cover on your chainsaw. Remove the cover and take out the air filter.
Inspect the Air Filter: Examine the air filter for dirt, debris, and damage. If the filter is heavily soiled or damaged, replace it.
Clean the Air Filter: Tap the air filter gently to remove loose dirt and debris. Then, wash the filter with warm, soapy water. Rinse it thoroughly and allow it to air dry completely.
Reinstall the Air Filter: Once the air filter is dry, reinstall it in the chainsaw.

Pro Tip: I keep a spare air filter on hand so I can always have a clean filter ready to go. This minimizes downtime and ensures optimal engine performance.

Upgrading the Air Filter (Optional)

Consider upgrading to a higher-quality air filter, such as a foam filter or a multi-stage filter. These filters offer:

Improved Filtration: Better protection against dirt and debris.
Increased Airflow: Enhanced engine performance.
Longer Lifespan: Extended service life compared to standard paper filters.

Original Research: I conducted a small experiment comparing the performance of a standard paper air filter to a foam air filter on my Craftsman chainsaw. I found that the foam filter provided slightly better airflow and resulted in a noticeable improvement in engine power, especially when cutting hardwoods.

Beyond the Tips: Advanced Techniques and Considerations

Now that we’ve covered the basics, let’s delve into some more advanced techniques and considerations for maximizing the performance of your Craftsman chainsaw.

Understanding Wood Species and Their Impact on Cutting

Not all wood is created equal. Different wood species have different densities, hardnesses, and moisture contents, which can significantly impact cutting performance.

Hardwoods vs. Softwoods: Hardwoods, such as oak, maple, and hickory, are denser and harder than softwoods, such as pine, fir, and cedar. Hardwoods require more power to cut and can dull your chain more quickly.
Green Wood vs. Seasoned Wood: Green wood, which is freshly cut, has a high moisture content. It is more difficult to cut than seasoned wood, which has been allowed to dry. Seasoned wood is also lighter and burns more efficiently as firewood.
Resinous Wood: Some wood species, such as pine and fir, contain a high amount of resin. Resin can build up on the chain and bar, reducing cutting performance.

Actionable Tip: When cutting hardwoods, use a sharp chain and a slower cutting speed. Avoid forcing the chainsaw, as this can overheat the engine and damage the chain. When cutting resinous wood, clean the chain and bar frequently to remove resin buildup.

Safe Felling Techniques: Protecting Yourself and Your Surroundings

Felling trees is a dangerous task that should only be performed by experienced individuals. If you are not comfortable felling trees, hire a professional arborist.

Assessing the Tree

Lean: Determine the direction of the tree’s natural lean. The tree will typically fall in the direction of the lean.
Branches: Identify any large branches that could affect the tree’s fall.
Obstacles: Look for any obstacles in the tree’s path, such as power lines, buildings, or other trees.

Felling Cuts

Notch Cut: Cut a notch in the tree on the side you want it to fall. The notch should be about one-third of the tree’s diameter.
Back Cut: Cut a back cut on the opposite side of the tree, slightly above the notch. Leave a hinge of wood between the notch and the back cut.
Felling Wedge: Insert a felling wedge into the back cut to help guide the tree’s fall.

Warning: Always be aware of your surroundings when felling trees. Wear appropriate safety gear, including a hard hat, safety glasses, hearing protection, and chainsaw chaps.

De-limbing and Bucking: Processing the Tree into Manageable Pieces

Once the tree is felled, it needs to be de-limbed and bucked into manageable pieces for firewood or other uses.

De-limbing

Work Safely: Always work from a stable position and keep your feet firmly planted.
Cut Away from Yourself: Cut branches away from your body to avoid injury.
Use Proper Techniques: Use a combination of overhand and underhand cuts to remove branches efficiently.

Bucking

Measure and Mark: Measure and mark the logs to the desired length.
Cut Straight: Use a guide to ensure you cut the logs straight.
Support the Log: Support the log to prevent it from pinching the chain.

Best Practice: I always stack my firewood immediately after bucking it. This allows the wood to begin drying and prevents it from becoming infested with insects.

Firewood Seasoning: The Key to Efficient Burning

Seasoning firewood is the process of drying the wood to reduce its moisture content. Seasoned firewood burns more efficiently, produces more heat, and creates less smoke.

Moisture Content Targets

Green Wood: Green wood typically has a moisture content of 50% or higher.
Seasoned Wood: Seasoned firewood should have a moisture content of 20% or lower.

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 with a tarp to protect it from rain and snow.
Time: Allow the firewood to season for at least six months, preferably a year or more.

Data Point: A study by the University of Maine found that properly seasoned firewood can produce up to 25% more heat than green wood.

Real Example: I have a friend who always burns green firewood. His wood stove smokes constantly, and he has to clean his chimney much more frequently than I do. Seasoning your firewood is well worth the effort.

Costs, Budgeting, and Resource Management

Wood processing and firewood preparation can be expensive, especially if you’re starting from scratch. Here’s a breakdown of costs, budgeting considerations, and resource management tips:

Initial Investment

Chainsaw: The Craftsman 18″ 42cc chainsaw typically costs between \$150 and \$250.
Safety Gear: Safety gear, including a hard hat, safety glasses, hearing protection, and chainsaw chaps, can cost between \$100 and \$200.
Sharpening Kit: A quality chainsaw sharpening kit can cost between \$30 and \$50.
Felling Wedge: A felling wedge can cost between \$10 and \$20.
Bar Rail Dresser: A bar rail dresser can cost between \$20 and \$40.

Ongoing Expenses

Fuel and Oil: Fuel and oil can cost between \$10 and \$20 per month, depending on usage.
Chain Replacement: Chains typically need to be replaced every year or two, depending on usage. A new chain can cost between \$20 and \$40.
Bar Replacement: Bars typically need to be replaced every few years, depending on usage. A new bar can cost between \$50 and \$100.
Maintenance and Repairs: Budget for occasional maintenance and repairs, such as carburetor cleaning or spark plug replacement.

Resource Management Tips

Source Free Wood: Look for free sources of wood, such as fallen trees or tree trimmings.
Buy in Bulk: Buy fuel, oil, and other supplies in bulk to save money.
Maintain Your Equipment: Properly maintain your equipment to extend its lifespan and reduce the need for repairs.
Conserve Fuel: Use proper cutting techniques and keep your chain sharp to conserve fuel.

Budgeting Consideration: I recommend setting aside a small amount of money each month for chainsaw maintenance and repairs. This will help you avoid unexpected expenses down the road.

Troubleshooting and Common Pitfalls

Even with the best preparation, you may encounter problems during wood processing or firewood preparation. Here are some common pitfalls to avoid and troubleshooting tips:

Chainsaw Won’t Start

Check the Fuel: Make sure the fuel tank is full and the fuel is fresh.
Check the Spark Plug: Remove the spark plug and inspect it for fouling or damage. Clean or replace the spark plug as needed.
Check the Air Filter: Clean or replace the air filter.
Check the Carburetor: Clean or rebuild the carburetor.

Chainsaw Loses Power

Check the Air Filter: Clean or replace the air filter.
Check the Fuel Filter: Replace the fuel filter.
Check the Spark Plug: Replace the spark plug.
Adjust the Carburetor: Adjust the carburetor to ensure the proper air-fuel mixture.

Chain Binds or Jams

Sharpen the Chain: Sharpen the chain regularly.
Check the Bar: Inspect the bar for wear or damage.
Lubricate the Chain: Ensure the chain is properly lubricated.
Use Proper Cutting Techniques: Avoid forcing the chainsaw.

Kickback

Use a Low-Kickback Chain: Use a low-kickback chain to reduce the risk of kickback.
Maintain Proper Posture: Keep your body balanced and your grip firm.
Avoid Cutting with the Tip of the Bar: The tip of the bar is the most likely area to cause kickback.

Troubleshooting Tip: If you are unable to troubleshoot a problem with your chainsaw, consult a qualified chainsaw mechanic.

Next Steps and Additional Resources

Now that you’ve mastered these insider tips, it’s time to put them into practice. Here are some next steps and additional resources to help you continue your wood processing and firewood preparation journey:

Practice Your Skills: Practice your chainsaw skills in a safe and controlled environment.
Join a Local Logging or Firewood Group: Connect with other enthusiasts and learn from their experiences.
Take a Chainsaw Safety Course: Improve your safety skills and learn advanced techniques.
Research Different Wood Species: Learn more about the properties of different wood species and how they affect cutting and burning.

Suppliers of Logging Tools

Baileys: Offers a wide range of logging tools, including chainsaws, axes, and safety gear.
Northern Tool + Equipment: Provides a variety of tools and equipment for wood processing and firewood preparation.
Amazon: Features a vast selection of logging tools and supplies from various manufacturers.

Drying Equipment Rental Services

Local Equipment Rental Companies: Many local equipment rental companies offer drying equipment, such as wood kilns and dehumidifiers.
Online Rental Marketplaces: Online rental marketplaces, such as Rent.com, connect you with local equipment rental providers.

By following these tips and utilizing the available resources, you can maximize the performance of your Craftsman 18″ 42cc chainsaw and enjoy efficient and safe wood processing and firewood preparation for years to come. Remember, it’s a marathon, not a sprint. Keep learning, keep practicing, and most importantly, keep safe. Happy cutting!