Stihl MS 270 Problems: Everything You Need To Know

While this competent tool is known for its performance and reliability, it is not without flaws.! In this guide, I will explore common Stihl MS 270 problems and provide practical solutions to help you overcome them.

Whether you’re experiencing issues with starting, chain tensioning, or overall performance, we’ve got you covered. So, let’s dive in and tackle these problems head-on!

Stihl MS 270 Problems

Difficulty Starting the Chainsaw

Starting a chainsaw can be a frustrating experience, especially if it doesn’t cooperate. If you find yourself struggling to start your Stihl MS 270, there are a few potential culprits to consider:

  • Spark Plug Issues: A faulty or dirty spark plug can hinder the starting process. Ensure that the spark plug is clean and in good condition.
  • Fuel Problems: Check the fuel tank for old or contaminated fuel. Stale fuel can make it challenging to start the chainsaw. Drain the tank and refill it with fresh fuel.
  • Choke Position: Ensure that the choke is in the correct position when starting the chainsaw. Refer to the owner’s manual for the appropriate choke setting.

Chain Tensioning Difficulties

Maintaining proper chain tension is crucial for safe and efficient chainsaw operation. If you’re having trouble adjusting the chain tension on your Stihl MS 270, consider the following:

  • Loose Chain: A loose chain can lead to ineffective cutting and potential safety hazards. Use the tensioning mechanism provided with your chainsaw to tighten the chain properly.
  • Damaged Tensioner: Inspect the chain tensioner for any signs of damage or wear. If necessary, replace the tensioner to ensure optimal performance.
  • Inadequate Lubrication: Insufficient chain lubrication can cause excessive heat and friction, leading to chain tensioning difficulties. Check the oil reservoir and ensure that it is adequately filled with high-quality chain oil.

Poor Performance and Cutting Quality

When your Stihl MS 270 doesn’t deliver the performance you expect or produces subpar cutting quality, several factors may be at play:

  • Dull Chain: A dull chain will struggle to cut efficiently and may produce excessive heat. Sharpen the chain regularly using a suitable chainsaw file or take it to a professional for sharpening.
  • Clogged Air Filter: A dirty or clogged air filter can restrict airflow, affecting engine performance. Clean or replace the air filter as needed to ensure proper air intake.
  • Fuel Mixture Issues: If you’re experiencing erratic performance, check the fuel mixture. Improperly mixed fuel can cause the engine to run poorly. Follow the manufacturer’s recommendations for the correct fuel-to-oil ratio.

Excessive Vibration

Excessive vibration can affect both the performance and user comfort when operating the Stihl MS 270. If you’re experiencing this issue, consider the following potential causes and solutions:

  • Loose or Damaged Components: Check for loose screws, bolts, or damaged parts, such as the guide bar or chain sprocket. Tighten any loose components or replace damaged parts to reduce vibration.
  • Unbalanced Chain: A poorly balanced chain can cause excessive vibration. Ensure that the chain is properly tensioned and replace it if it is damaged or worn.
  • Engine Mounts: Inspect the engine mounts for wear or deterioration. If the mounts are damaged, they may need to be replaced to reduce vibration.


If your Stihl MS 270 chainsaw is overheating during operation, it is essential to address the issue promptly to avoid damage to the engine or other components. Here are some potential reasons for overheating and their corresponding solutions:

  • Air Flow Blockage: Check for debris or dirt accumulation in the cooling fins and air intake areas of the chainsaw. Clean these areas thoroughly to ensure proper airflow and cooling.
  • Clogged Exhaust System: A clogged exhaust system can lead to overheating. Inspect the muffler and exhaust port for obstructions or excessive carbon buildup. Clean or replace the muffler as necessary.
  • Fuel Mixture: An improper fuel mixture can cause the engine to run hot. Ensure that you are using the correct fuel-to-oil ratio and high-quality two-stroke engine oil recommended by Stihl.

Oil Leakage

Oil leakage can be an annoyance and a potential hazard, as it may affect the chainsaw’s performance and pose a slipping risk. Here’s what you can do to Fix this problem:

  • Inspect the Oil Tank: Check the oil tank for cracks or damage that could be causing the leakage. If any issues are found, replace the oil tank to prevent further leakage.
  • Check Oil Lines and Connections: Inspect the oil lines and connections for any signs of wear, cracks, or loose fittings. Replace any damaged or worn parts and ensure all connections are tight.
  • Clean the Oil Pump: A clogged or malfunctioning oil pump can cause oil leakage. Clean the oil pump and ensure it is operating correctly. If necessary, replace the oil pump to resolve the issue.

Remember, regular maintenance, including proper cleaning, lubrication, and following Stihl’s recommended guidelines, will help prevent and resolve these problems.


Owning a Stihl MS 270 chainsaw offers many benefits, but it’s important to be aware of potential problems that may arise. By Fixing common issues such as starting difficulties, chain tensioning, and overall performance, you can ensure the longevity and reliable operation of your chainsaw.

Regular maintenance, including sharpening the chain, checking the fuel mixture, and keeping the air filter clean, will go a long way in preventing and resolving problems.