Where Is The Oil Adjustment On Stihl Chainsaw: A Comprehensive Guide

Where Is The Oil Adjustment On Stihl Chainsaw

Adjusting the oil on a Stihl chainsaw is essential to maintaining its peak performance and preventing unnecessary wear on the equipment.

The oil adjustment on Stihl chainsaws is typically located near the bar and chain. It is commonly marked with an oil droplet symbol and can be adjusted using a screw or dial mechanism.

In this article, we will discuss where is the oil adjustment on Stihl chainsaw and the benefits of an adjustable Stihl chainsaw, the tools you’ll need to perform an oil adjustment, and how to locate and adjust the oil screw.

What Tools Are Required for the Oil Adjustment on a Stihl Chainsaw:

To adjust the oil on your Stihl chainsaw, you’ll need the following tools:

  1. A flathead screwdriver
  2. A soft brush or cloth for cleaning the area around the adjustment screw
  3. Safety glasses
  4. Gloves

How to Locate the Oil Adjustment Screw:

The oil adjustment screw is typically located on the underside of the chainsaw, near the chain bar. Here’s how to find it:

  1. Place your chainsaw on a flat, stable surface, ensuring it is switched off and the chain brake is engaged.
  2. Wearing gloves, locate the oil adjustment screw. It’s usually a small, brass or silver-colored flathead screw marked with a “+” and “-” symbol.
  3. Use a soft brush or cloth to remove debris around the screw to ensure a smooth adjustment.

Where Is The Oil Adjusting on Stihl Chainsaw – Steps

Follow these steps to adjust the oil on your Stihl chainsaw:

  1. Start the chainsaw and let it warm up for a minute or two.
  2. Hold the chainsaw over a piece of paper, cloth, or cardboard.
  3. With the engine running at full throttle, release the chain brake and assess the oil flow on the test surface. The oil should leave a defined line.
  4. If the oil flow appears insufficient, turn the oil adjustment screw clockwise (+) to increase the flow. If the oil flow seems excessive, turn the screw counterclockwise (-) to decrease the flow.
  5. Test the oil flow again by revving the engine at full throttle and evaluating the line created.
  6. Repeat the process until the oil flow is optimal.
  7. When finished, switch off the chainsaw and disengage the chain brake.

Troubleshooting Common Issues with Oil Adjustment on a Stihl Chainsaw

When troubleshooting common issues with oil adjustment on a Stihl chainsaw, you can take a few steps to identify and resolve the problem. Here are some potential issues and their solutions:

  1. Insufficient oil being delivered:
  • Check the oil tank to ensure it has enough oil. Refill if necessary.
  • Clean the oil outlet and oil pump if they are clogged with debris or sawdust.
  • Verify that the oil pump is functioning properly. Remove the bar and chain, then run the engine at high speed while observing the oil delivery. If no or minimal oil comes out, the pump may need to be replaced.
  1. Excessive oil being delivered:
  • Make sure the oil tank is well-filled. If it is, drain some oil to the appropriate level.
  • Check for any obstructions in the oil channel or oiler holes. Clean them if necessary.
  • Adjust the oil flow rate using the oil adjustment screw. Turning it clockwise reduces the flow while turning it counterclockwise increases it. Gradually make small adjustments until the desired oiling rate is achieved.
  1. Uneven oil distribution:
  • Check the oil channels, oiler holes, and guide bar groove for blockages. Clean them thoroughly to ensure proper oil flow.
  • Ensure that the oil ports on the guide bar are not clogged. Clean them with a small brush or compressed air.
  • Inspect the guide bar for any damage or warping that could affect oil distribution. Replace if necessary.
  1. Chain not lubricated:
  • Remove the chain and guide bar, then clean them thoroughly to remove any built-up sawdust, resin, or debris blocking the oil flow.
  • Check the oil channels on the guide bar to ensure they are clear and free of obstruction.
  • Make sure the chain tension is correctly adjusted. A loose chain can reduce oiling efficiency. Follow the manufacturer’s guidelines for proper chain tension.

If you have tried these troubleshooting steps and the issue persists, it is recommended to consult the Stihl user manual or contact their customer support for further assistance.

The Benefits of an Adjustable Stihl Chainsaw:

An adjustable Stihl chainsaw offers several benefits, including:

  1. Enhanced Performance

Proper oil adjustments keep the chain lubricated, reducing friction and increasing the overall performance of your chainsaw.

  1. Increased Lifespan:

 Regular oil adjustments and maintenance can extend the life of your chainsaw and prevent damage to its components.

  1. Reduced Wear

Adequate oiling minimizes the wear and tear on the chain and bar, ensuring smoother operation and longer service life.

  1. Cost Savings:

 A well-maintained chainsaw can save you money on repairs and replacement parts in the long run.

Different types of Stihl chainsaws and their corresponding oil adjustments

Stihl offers a range of chainsaws with other models and features. The oil adjustment method may vary depending on the specific model. Here are a few examples of Stihl chainsaw models and their corresponding oil adjustment mechanisms:

  1. Stihl MS 170:
  • The Stihl MS 170 is a lightweight chainsaw designed for occasional use. It typically has a single oil adjustment screw near the bar and chain.
  • To adjust the oil flow, locate the oil adjustment screw (usually marked with an oil droplet symbol) and turn it clockwise to reduce the flow or counterclockwise to increase the flow. Make small adjustments and test the oiling rate until it suits your needs.
  1. Stihl MS 271:
  • The Stihl MS 271 is a mid-range chainsaw suitable for homeowners and professionals. It may have a side-mounted chain tensioner with an oil adjustment feature.
  • To adjust the oil flow, locate the oil adjustment screw on the side of the chainsaw body. Turning it clockwise reduces the flow while turning it counterclockwise increases it. Make gradual adjustments and test the oiling rate with the bar and chain installed.
  1. Stihl MS 500i:
  • The Stihl MS 500i is a high-performance professional chainsaw with advanced features. It may have an electronically controlled oil delivery system.
  • The oil adjustment on the MS 500i may require accessing the chainsaw’s electronic control unit (ECU) through the diagnostic port or interface. Adjustments to the oil flow rate are typically made using specific software or tools provided by Stihl. It is recommended to consult the user manual or contact Stihl customer support for guidance on oil adjustment for this model.

It’s important to note that the oil adjustment mechanisms can vary among Stihl chainsaw models, and it’s crucial to refer to the specific user manual for your chainsaw model to understand the correct method for adjusting the oil flow.

Safety tips to consider when adjusting the oil 

When adjusting the oil on a chainsaw, it’s important to prioritize safety. Here are some safety tips to consider:

  1. Wear protective gear: Use safety glasses, gloves, hearing protection, and a chainsaw safety helmet with a face shield or goggles.
  2. Turn off the chainsaw: Ensure the chainsaw is powered off and the engine is cool. Disconnect the spark plug wire.
  3. Work outdoors: Perform the oil adjustment in a well-ventilated outdoor area.
  4. Follow the manual: Refer to the user manual for specific instructions on oil adjustment.
  5. Use proper tools: Use the recommended tools for adjusting the oil flow.
  6. Make minor adjustments: Gradually adjust the oil flow and test the chainsaw’s performance.
  7. Inspect the chain and bar: Check for damage, wear, and proper tension in the chain and guide bar.
  8. Clean up spills: Immediately clean any oil spills to prevent slips and falls.
  9. Maintain the chainsaw: Regularly clean, inspect, and maintain the chainsaw, including the oiling system.
  10. Seek professional help if unsure: Consult a professional or the manufacturer’s customer support for assistance.

Remember, prioritize safety when working with chainsaws.


In conclusion, adjusting the oil on a Stihl chainsaw is vital for optimal performance and longevity. Locate the oil adjustment screw near the bar and chain, marked with an oil droplet symbol. Adhere to the user manual instructions and prioritize safety by wearing protective gear, working in a well-ventilated area, and making precise adjustments.

Troubleshoot issues like insufficient or excessive oil delivery, uneven oil distribution, or chain lubrication problems. Clean the oil outlet and pump, adjust the oil flow rate, or inspect and clean the guide bar.

Refer to the Stihl user manual or contact customer support for model-specific guidance. Proper oil adjustment and adherence to safety guidelines will ensure your Stihl chainsaw operates efficiently and lasts longer.


Where Is The Oil Adjustment On The Stihl Chainsaw?

The oil adjustment on a Stihl chainsaw is typically located near the bar and chain. It is marked with an oil droplet symbol and can be adjusted using a screw or dial mechanism.

How do you adjust the oil pump on a chainsaw?

How to adjust the oiler on stihl ms 271? Adjusting the oil pump on a chainsaw involves locating the adjuster screw, typically found on the underside. Using a flat-head screwdriver, turn the screw clockwise to increase oil flow or counter-clockwise to decrease it.

What Is The Oil Mixture For A Stihl Chainsaw?

The oil mixture for a Stihl chainsaw is typically a 50:1 ratio of gasoline to 2-cycle engine oil.

What valve controls the oil pump pressure?

The valve that controls the oil pump pressure on a Stihl MS250 chainsaw is the adjustable screw located on the bottom of the chainsaw. It is manipulated using a flat-head screwdriver to either increase or decrease oil flow.

How Often Should You Change The Oil On A Stihl Chainsaw?

Stihl chainsaws do not require regular oil changes. The oil used in a Stihl chainsaw is for bar and chain lubrication, and it should be checked and refilled as needed before each use.

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