You probably appreciate the reliability and performance Of Stihl Ms 171 Chainsaw. However, even the best tools can develop problems over time, and MS 171 is no exception.
Whether you’re experiencing issues with starting, cutting, or maintenance, it’s essential to understand common Stihl MS 171 problems and how to address them.
In this article, I’ll explore some of the most common Problems faced by MS 171 users and provide tips for troubleshooting and fixing them.
Common Stihl MS 171 Problems
The Stihl MS 171 is a lightweight chainsaw designed for homeowners and occasional use. It features a 31.8cc engine with a power output of 1.7bhp and a bar length of up to 16 inches. The MS 171 also includes Stihl’s Easy2Start system, which reduces the effort required to start the chainsaw.
Here Are Some Common Ms 171 Problems:
Stihl Ms 171 Won’t Start
One of the most common problems experienced by Stihl MS 171 is Hard to Start Some Times. This issue can be caused by a variety of factors, including a clogged air filter, stale fuel, a fouled spark plug, or a malfunctioning carburetor.
To Solve hard starting, check and clean the air filter, replace the spark plug, and use fresh fuel. If the problem persists, the carburetor may need to be cleaned or adjusted by a professional.
Low Power
Another common issue with the MS 171 is low power output, which can result in sluggish performance and difficulty cutting through wood. Low power can be caused by a dirty air filter, a clogged fuel filter, or a malfunctioning carburetor.
To Fix this issue, clean or replace the air and fuel filters, and adjust or replace the carburetor as needed.
Chain Not Cutting Properly
If your Stihl MS 171 is having trouble cutting through wood, it may be due to a dull or damaged chain. Check the chain for damage and replace it if necessary. You may also need to adjust the chain tension or sharpen the chain using a chainsaw file.
Engine Stalling
Engine stalling can occur when the chainsaw is idling or during use. This issue can be caused by a clogged air filter, a malfunctioning carburetor, or a fouled spark plug. Carefully check and clean the air filter, replace the spark plug, and adjust or clean the carburetor.
Fuel Leaks From Stihl Ms 171
If you notice fuel leaking from your MS 171, it’s important to Fix this issue Urgently to avoid fire hazards and damage to the chainsaw. Fuel leaks can be caused by a damaged fuel line or a faulty fuel tank cap. replace the damaged fuel line or fuel tank cap.
Ms 171 High Fuel Consumption
If your MS 171 is consuming an excessive amount of fuel, it may be due to a clogged air filter, a dirty or worn spark plug, or a malfunctioning carburetor. check and clean the air filter, replace the spark plug, and adjust or clean the carburetor.
Spark Plug Fouling
Spark plug fouling can cause your MS 171 to run poorly or not start at all. This issue can be caused by using the wrong type of spark plug, an incorrect fuel mixture, or a dirty air filter. ensure that you’re using the correct spark plug, use the recommended fuel mixture, and check and clean the air filter regularly.
Chain Lubrication Problems
If the chain on your MS 171 is not properly lubricated, it can cause damage to the chain and bar, as well as reduce cutting performance. This issue can be caused by a clogged oil filter or a malfunctioning oil pump. clean or replace the oil filter and adjust or replace the oil pump.
Air Filter Clogging
A clogged air filter can cause a variety of issues with your Stihl MS 171, including hard starting, low power, and engine stalling. remove the air filter and clean it with soap and water, or replace it if it’s worn or damaged.
Ms 171 Dies at Idle
If your MS 171 is idling poorly, it may be due to a clogged air filter, a malfunctioning carburetor, or a dirty spark arrestor screen. To Fix poor idle, clean or replace the air filter, adjust or clean the carburetor, and clean the spark arrestor screen.
Stihl Ms 171 Carburetor Problems
Carburetor problems can cause a variety of issues with your MS 171, including hard starting, low power, and engine stalling. clean or adjust the carburetor or have it serviced by a professional.
Overheating
Overheating can occur when the MS 171 is used for an extended period or in high ambient temperatures. allow the chainsaw to cool down before use, and avoid using it in extreme heat.
Chain Brake Failure
The chain brake on your MS 171 is an important safety feature that can prevent injury in the event of a kickback. If the chain brake is not functioning properly, it may need to be replaced or serviced by a professional.
Ignition Issues
If your Stihl MS 171 is having ignition issues, it may be due to a faulty ignition coil or spark plug. replace the faulty ignition coil or spark plug.
Excessive Vibration
Excessive vibration can cause fatigue and discomfort for the user and may indicate a problem with the chainsaw’s engine or chain. check the engine for damage or wear and ensure that the chain is properly tensioned and sharpened.
Troubleshooting Tips for Stihl MS 171 Problems
If you’re experiencing issues with your Stihl MS 171, there are several troubleshooting tips you can try before seeking professional service. Some of these tips include:
- Use fresh fuel and ensure that the fuel mixture is correct
- Clean or replace the air and fuel filters regularly
- Check and adjust the carburetor as needed
- Sharpen or replace the chain as needed
- Check and clean the spark plug and ignition system
- Ensure that the chain brake is functioning properly
Final Words
The Stihl MS 171 is a popular and reliable chainsaw, but like any Tool, it can experience problems from time to time. By understanding some of the most common Stihl Ms171 Problems and knowing how to troubleshoot and prevent them, you can help to keep your chainsaw in top condition and avoid costly repairs. Â
Common FAQs
How often should I clean or replace the air filter on my Stihl MS 171?
 you clean or replace the air filter on your MS 171 after every 10 hours of use.
Can I use regular gasoline in my Stihl MS 171?
No, it’s important to use gasoline that’s specifically formulated for 2-stroke engines, as using regular gasoline can cause engine damage.
How often should I sharpen the chain on my MS 171?
The frequency of chain sharpening will depend on how often you use your MS 171 and the type of wood you’re cutting.Â
How do I know if the carburetor on my MS 171 needs adjusting?
If you’re experiencing issues with hard starting, poor idle, or low power, it may be a sign that the carburetor needs adjustment.
Can I use any bar and chain oil in my MS 171?
it’s important to use bar and chain oil that’s specifically formulated for chainsaws, as using the wrong type of oil can cause damage to the chain and bar.
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I am John, a Chainsaw and small engine technician! Over the years, I have gained valuable experience in the industry, allowing me to refine my skills and knowledge to offer exceptional advice for all your small engine and chainsaw requirements. Whether it’s routine maintenance or complex repairs, I possess the expertise to accomplish the task efficiently and effectively. I take pride in delivering top-notch information,
