Poulan Chainsaw Maintenance & Starting Guide

Your Guide to Poulan Chainsaw Care and Operation

Owning a Poulan chainsaw puts a powerful tool at your fingertips, ready for a variety of demanding tasks from felling trees to intricate woodworking projects. Whether you're a seasoned professional or a first-time user, understanding the nuances of your Poulan chainsaw, including its maintenance and starting procedures, is crucial for both efficiency and safety. This comprehensive guide will walk you through the essential steps to keep your Poulan running optimally, address common starting issues, and highlight the importance of proper fuel mixing and safety precautions.

Understanding Your Poulan Chainsaw

Poulan chainsaws are renowned for their reliability and performance in the domestic and professional markets. They are designed for a range of applications, including:

• Felling: The process of cutting down a tree.
• Bucking: Cutting logs or felled trees into manageable lengths.
• Limbing: Removing branches from a felled tree.

To ensure your chainsaw performs these tasks effectively and safely, regular maintenance and correct starting procedures are paramount. Let's delve into the specifics.

Essential Safety Measures Before You Start

Safety is non-negotiable when operating any chainsaw. Before even considering starting your Poulan, ensure you have the necessary protective gear and have assessed your surroundings. Always use your chainsaw in a well-ventilated area, away from flammable materials.

Personal Protective Equipment (PPE):

The following PPE is essential for safe operation:

Pre-Operation Checks:

Before each use, perform these critical checks:

• Chain Brake: Ensure the chain brake is functional and engaged when not actively cutting. This is your primary safety feature against kickback.
• Chain Tension: The chain should be taut but still able to be pulled around the bar by hand. If it's too loose, it can derail; too tight, and it can cause excessive wear.
• Bar and Chain Lubrication: Verify the oil reservoir is full and the automatic oiler is working correctly, ensuring the chain is adequately lubricated during operation.
• General Condition: Inspect the chainsaw for any loose parts, damage, or leaks.

The Correct Way to Start Your Poulan Chainsaw

Starting a Poulan chainsaw correctly involves a specific sequence to ensure the engine receives the right fuel mixture and air, and to prevent potential hazards. Here’s a step-by-step guide:

1. Fuel and Oil Mixture: The Lifeblood of Your Saw

Poulan chainsaws, like most modern chainsaws, are typically two-stroke engines and require a specific fuel-to-oil ratio. Using the wrong mixture can lead to engine damage.

Recommended Ratio: Poulan recommends a 49:1 fuel-to-oil ratio. This means for every gallon of gasoline, you should mix 3.2 ounces of Poulan 2-cycle air-cooled engine oil.

Fuel Grade: Use standard unleaded gasoline with an octane rating of 87. You can use gasoline mixed with no more than 10% alcohol. Never use E85 or diesel fuels.

Mixing Procedure:

1. Use a clean, approved fuel container.
2. Add the correct amount of Poulan 2-cycle oil first.
3. Add the specified amount of unleaded gasoline.
4. Secure the cap and shake the container vigorously to ensure thorough mixing. Oil and gasoline can separate over time, so shaking before each refill is essential.

2. Preparing the Chainsaw for Starting:

Before pulling the starter cord, perform these preparatory steps:

• Read the Manual: Always consult your Poulan chainsaw's user manual for specific instructions pertaining to your model.
• Prime the Engine: Locate the priming bulb (a small, rubbery button on the carburetor). Press the priming bulb 3 to 5 times, or until you see fuel circulating. This draws fuel into the carburetor.
• Engage the Choke: If your model has a choke, move it to the 'Choke' or 'Cold Start' position. This enriches the fuel mixture for starting a cold engine.
• Place the Chainsaw: Set the chainsaw on a flat, clear surface. Ensure the chain is not touching anything and that you have a firm grip on the front handle.
• Activate Chain Brake: Ensure the chain brake is engaged (pushed forward).

3. The Starting Sequence:

Once prepared, follow this sequence:

1. Pull the Starter Cord: Firmly and smoothly pull the starter cord about three times. The engine may sputter or try to fire.
2. Disengage the Choke: Once the engine sputters, move the choke lever to the 'Run' or 'Half-Choke' position.
3. Pull Again: Pull the starter cord again, typically 3 to 5 more times. The engine should now start and run.
4. Warm-Up: Allow the chainsaw to warm up for a minute or two. While it's warming up, you can often disengage the chain brake. If the engine sounds rough or stalls, you may need to repeat the priming and choke steps.
5. Check Throttle Response: Gently squeeze the throttle trigger to ensure the engine revs smoothly and returns to idle.

What if the Poulan Chainsaw Won't Start?

If your Poulan chainsaw refuses to start after following the above steps, consider these common issues:

• Incorrect Fuel Mixture: Ensure you used the correct fuel-to-oil ratio and fresh gasoline. Old fuel can cause starting problems.
• Flooded Engine: If you pulled the starter cord too many times with the choke fully engaged, you may have flooded the engine. Disengage the choke and try starting again. You might need to wait a few minutes for the excess fuel to evaporate.
• Dirty Air Filter: A clogged air filter restricts airflow, preventing the engine from starting.
• Spark Plug Issues: The spark plug might be fouled, wet, or incorrectly gapped.
• Blocked Fuel Lines: Debris can obstruct fuel flow.

Basic Maintenance for Your Poulan Chainsaw

Regular maintenance is key to longevity and performance. The most frequent maintenance task is cleaning the air filter.

Cleaning the Air Filter:

An air filter should be checked and cleaned approximately every 5 hours of use, or more frequently in dusty conditions.

1. Safety First: Ensure the engine is off and cool.
2. Access the Filter: Remove the top cover of the chainsaw. Often, this requires unscrewing a knob or two. Clean the area around the filter before removal to prevent debris from falling into the carburetor.
3. Remove and Clean: Carefully remove the air filter. If it's a foam filter, wash it in warm, soapy water. Rinse thoroughly under running water. Gently squeeze out excess water (do not wring). Lightly lubricate the foam filter with a small amount of bar and chain oil and squeeze out any excess before reinstalling. If it's a paper filter, tap it gently to remove loose debris, or use compressed air. If it's heavily soiled, it may need replacement.
4. Drying: Allow foam filters to air dry completely before reinstalling. Never reinstall a damp filter.
5. Reassembly: Once clean and dry (or replaced), reinstall the air filter and secure the top cover.

Other essential maintenance includes regularly sharpening the chain, cleaning the guide bar, and checking the overall condition of the saw.

Troubleshooting Common Issues

Poulan Chainsaw Won't Start When Hot:

If your chainsaw starts fine when cold but struggles or refuses to start when hot, this often indicates an issue with the fuel mixture or heat-related component failure. Ensure you're using the correct fuel mix and allow the saw to cool down between uses. A partially clogged fuel filter or carburetor issues can also manifest when the engine is hot.

Poulan Chainsaw Losing Power:

This can be caused by several factors:

• Clogged Air Filter: As mentioned, this restricts airflow.
• Incorrect Fuel Mixture: Too much oil or too little oil can affect performance.
• Carburetor Issues: The carburetor may need adjustment or cleaning.
• Worn Spark Plug: A weak spark can lead to poor combustion.
• Low Compression: Internal engine wear can reduce power.

Rebuilding a Poulan 2150 Chainsaw

Rebuilding a Poulan 2150, or any chainsaw, is a more involved process that typically requires a good understanding of small engine mechanics. It involves complete disassembly and replacement of worn or damaged components such as piston rings, seals, gaskets, bearings, and potentially the carburetor or ignition system.

General Steps for a Rebuild:

1. Disassembly: Start by removing external components like the chain, guide bar, clutch cover, and top cover.
2. Carburetor and Fuel System: Detach the carburetor and fuel lines. These are often replaced or thoroughly cleaned and rebuilt with a kit.
3. Cylinder and Piston: Access the cylinder by removing the cylinder head bolts. Inspect the cylinder bore for scoring and the piston and rings for wear. Replace as necessary.
4. Crankshaft and Bearings: Disassemble the crankcase to access the crankshaft and connecting rod. Inspect bearings for smooth operation and replace seals and gaskets.
5. Reassembly: Carefully reassemble all components, ensuring all parts are clean, lubricated, and torqued to specification.

For a full rebuild, it is highly recommended to have a service manual specific to the Poulan 2150 and the necessary tools. If you are unsure about any step, seeking professional assistance is advisable.

Frequently Asked Questions (FAQs)

Q: Is it okay if I keep gasoline in my unit for long periods?

A: No, it is not recommended. Gasoline can degrade over time, forming gum deposits that can clog the fuel system. If you plan to store your chainsaw for more than 30 days, drain the fuel tank, start the unit, and let it run until it stops. Then, re-tighten the gas cap.

Q: What's the best way to combine gas and oil for my Poulan chainsaw?

A: Always use fresh, unleaded gasoline (87 octane) and Poulan 2-cycle air-cooled engine oil. Mix at a 49:1 ratio (3.2 oz oil per gallon of gas). Shake the fuel mixture vigorously before each refill to ensure proper oil dispersion.

Q: What gas grade should I use?

A: Use standard unleaded gasoline with an octane rating of 87. Gasoline containing up to 10% alcohol is acceptable. Avoid E85 and diesel fuels.

Q: Can I use a chainsaw to cut roots?

A: While possible, cutting roots is very tough on your chainsaw. It can dull the chain quickly and introduce dirt and grit, which can cause significant wear to the bar and engine components. It's generally best avoided or done with extreme caution and frequent chain sharpening.

Final Verdict

Knowing how to properly start, maintain, and operate your Poulan chainsaw will not only extend its lifespan but also ensure your safety and the efficiency of your work. By adhering to the recommended fuel mixtures, performing regular checks, and understanding basic maintenance, you can confidently tackle tasks like felling, bucking, and limbing. Always prioritise safety, wear your PPE, and if in doubt, consult your user manual or seek expert advice. Your Poulan chainsaw is a robust tool, and with the right care, it will serve you well for years to come.

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