Stihl MS 170: What’s the common problems and how to fix?

If you have a Stihl MS 170 chainsaw, then you know it can be a difficult saw to maintain. This article provides specific solutions to the most common problems with this particular type of chain saw and how to fix them.

Stihl MS 170 FAQs

When did the Stihl MS 170 come out?

The Stihl MS 170 came out in 2009. It is a gas-powered chainsaw that has an 18″ bar and a 7.5 HP engine. The MS 170 is one of the newer chainsaws on the market and it has some features that make it stand out.

What CC is a Stihl MS 170?

The CC of a Stihl MS 170 is 36.3, meaning that it has a 36.3 cc engine. This makes it a relatively small and lightweight saw, which is ideal for many different types of projects.

Stihl MS 170

What’s the Stihl MS170 specification?

  • Rated voltage: 230 V
  • Power output: 1,7 kW
  • Weight: 4,2 kg
  • Sound pressure level: 92 dB(A)
  • Sound power level: 103 dB(A)
  • Vibration level, left/right: 2,9/3,4 m/s²
  • Cable length: 0,4 m
  • STIHL Oilomatic saw chain type: Picco Micro Mini 3 (PMM3)
  • Saw chain pitch: 3/8 ” P

How many horsepower does a Stihl MS170 have?

The Stihl MS170 is a very popular chainsaw, and it is known for being very powerful. It has a 2-cycle engine that is capable of producing up to 1.7 horsepower. This makes it a very popular choice for those who need a powerful chainsaw.

How much does a Stihl 170 weight?

The Stihl MS 170 weighs just over 4.2kg, making it one of the lightest chainsaws on the market. This makes it easy to maneuver and operate, even for those who are new to using a chainsaw. The MS 170 also has a powerful engine that makes it capable of tackling even the toughest jobs.

What chain does the Stihl 170 have from the factory?

The Stihl MS 170 comes with a 3/8″ Picco Micro 3 saw chain as standard. This is a low-kickback saw chain that is specifically designed for use with the MS 170. It is a very safe and easy to use saw chain that will make your cutting tasks a lot easier.

How big of a bar can you put on a Stihl MS 170?

The answer depends on the model of the MS 170 that you have. The newer models can accommodate bars up to 16 inches, while the older models can only accommodate bars up to 14 inches. So, if you have a newer model MS 170, you can put a larger bar on it. Just be sure to check the size of the bar before you purchase it, to make sure it will fit your chainsaw.

What’s the Stihl MS 170 max bar length?

The Stihl MS 170 max bar length is 16 inches. This saw is a great choice for homeowners who need a lightweight saw for occasional cutting tasks around the house. It features a low-kickback chain and a durable construction.

How much is a Stihl MS170?

The Stihl MS 170 is a great little saw for the price, but how much does it actually cost? We did a bit of research and found that it generally retails for around $200. However, prices may vary depending on where you purchase it from and any applicable taxes or shipping fees.

Where to find Stihl MS170 for sale?

Here are some recommended resources if you’re looking to buy or borrow a Stihl MS 170:

  1. Lowe’s Home Improvement. The Stihl MS 170 is available at Lowe’s, so this would be one of the best places to start your search. You can also find helpful reviews and comparisons of different models here.
  2. Home Depot. Another great place to look for the Stihl MS 170 is at Home Depot. You’ll find both the standard model and an upgraded version here, as well as helpful customer reviews.
  3. Amazon. If you prefer to shop online, the Stihl MS 170 is sold by here in both standard and upgraded versions.

Does the Stihl 170 come with a case?

If you’re in the market for a lightweight and affordable chainsaw, the Stihl MS 170 is a great option. But does it come with a case?

Unfortunately, the Stihl MS 170 does not come with a case. However, there are a variety of aftermarket cases available that will fit the MS 170. If you’re looking for a durable and weather-resistant case, the Stihl Hard Hat Carrying Case is a great option. 

How to Guides

How to reset the Stihl 170?

If you’re having trouble with your Stihl MS 170 and need to reset it, here’s what you need to do. First, make sure the saw is turned off and the chain is not moving. Next, find the red button on the saw’s body near the handle. Press and hold this button for about 5 seconds. You should hear a click when the button is released, indicating that the reset is complete.

Stihl MS 170

How to calibrate a Stihl MS 170?

If your Stihl MS 170 is running too lean, it’s important to calibrate the carburetor to ensure optimal performance. Here’s how to do it:

  1. Remove the air filter and clean it. A clean air filter is important for two-stroke engines, as it allows for proper airflow and prevents the engine from running too lean.
  2. Adjust the idle speed. The idle speed should be set to 2,500 RPM.
  3. Adjust the carburetor. The carburetor can be adjusted by turning the screws marked “H” and “L.” Turning the “H” screw clockwise will lean the mixture, while turning it counterclockwise will richen the mixture. Turning the “L” screw will adjust the low-speed mixture.
  4. Replace the air filter and start the engine. Let the engine warm up for a few minutes before revving it up. If the engine is running too lean, it will stall. If it’s running too rich, it will smoke.
  5. Once the engine is warmed up, rev it up and listen for any strange noises. If everything sounds normal, then your Stihl MS 170 is properly calibrated.

How to adjust the carburetor on a Stihl MS 170?

Assuming you have a basic understanding of how a carburetor works, adjusting the carburetor on a Stihl MS 170 is a relatively simple task that can be completed in just a few steps.

  1. Begin by removing the air filter cover and the air filter itself.
  2. Locate the carburetor adjustment screws, which are located on the side of the carburetor. One screw is for idle speed, while the other is for fuel mixture.
  3. Using a screwdriver, turn the idle speed screw clockwise or counterclockwise until the desired RPM is achieved.
  4. To adjust the fuel mixture, turn the fuel mixture screw clockwise to lean the mixture or counterclockwise to richen the mixture.
  5. Once the adjustments have been made, replace the air filter and cover.

How to replace bar oil pump for Stihl MS170?

Assuming you have all the necessary tools, the process of replacing the bar oil pump on a Stihl MS 170 is actually quite simple. Just follow these steps:

  1. Start by unplugging the spark plug cap from the spark plug. This will prevent the saw from accidentally starting while you’re working on it.
  2. Next, remove the bar and chain from the saw.
  3. With the bar and chain removed, you should be able to see the bar oil pump. It is located just below the sprocket cover.
  4. Use a flathead screwdriver to remove the two screws that hold the pump in place.
  5. Carefully remove the old pump and replace it with the new one. Make sure that the new pump is properly seated and securely fastened in place.
  6. Reattach the bar and chain and plug the spark plug back in.

That’s it! You should now have a new, fully functioning bar oil pump on your Stihl MS 170.

How to adjust the chain tensioner on Stihl 170?

If the chain on your Stihl 170 starts to sag or come loose, it’s time to adjust the tensioner. This is a relatively simple process, but it’s important to do it correctly to ensure that your chain stays in good condition.

  1. Start by loosening the bolts that hold the guide bar in place. You’ll need a Phillips head screwdriver for this.
  2. Next, loosen the bolt that secures the chain tensioner. Again, you’ll need a Phillips head screwdriver.
  3. Now, you can adjust the tensioner. To do this, simply turn the knob clockwise to tighten the chain, or counterclockwise to loosen it.
  4. Once you’ve adjusted the tensioner to your liking, tighten the bolt that secures it in place.
  5. Finally, tighten the bolts that hold the guide bar in place.

And that’s it! Adjusting the chain tensioner on your Stihl 170 is a quick and easy process. Just be sure to check the tension periodically to ensure that your chain stays in good condition.

What fuel mix to use for the Stihl MS 170?

The recommended fuel mix for the Stihl MS 170 is a 50:1 ratio of gasoline to oil. This means that for every gallon of gasoline, you should add 2.6 ounces of oil.

If you’re using a different brand of oil, make sure to use a high-quality, 2-cycle engine oil. The oil should also have an NMMA (National Marine Manufacturers Association) certification.

The 50:1 ratio is the most common fuel mix ratio for 2-cycle engines, but some manufacturers recommend a 40:1 or even a 32:1 ratio for their chainsaws. It’s important to follow the manufacturer’s recommendations to ensure that your chainsaw runs properly and doesn’t get damaged.

How tight should the chain be on Stihl MS 170?

The chain on the Stihl MS 170 must be tight to ensure proper operation of the saw. If the chain is too loose, it can cause the saw to overheat and potentially fail. However, if the chain is too tight, it can damage the saw and make it difficult to operate.

To find the right chain tension, start by adjusting the blade height. The higher the blade is set, the more slack there is in the chain, which will result in a looser tension. Once you have determined how high to set the blade, tighten or loosen the chain tension screw until you have achieved the desired level of tightness.


Stihl 170: How to fix Not to start?

If your Stihl MS 170 chainsaw won’t start, there are a few things you can do to try to fix the problem.

  1. First, check the fuel mixture in the saw. The fuel mixture should be two-stroke oil and gas mixed at a 50:1 ratio. If the mixture is too lean, it can cause the saw to not start.
  2. Also, check the air filter to make sure it is clean. A dirty air filter can also cause the saw to not start.
  3. Finally, check the spark plug to see if it is fouled. If so, clean it and try again. If none of these things work, you may need to take the saw to a qualified repair shop.

How to fix if the Stihl MS170 has Loud noise?

If you’re experiencing loud noise from your Stihl MS 170 lawn tractor, there are several things you can do to troubleshoot and fix the problem. Here are some easy solutions to common MS 170 noise problems:

  1. Check the engine oil level. Low engine oil levels can cause decreased combustion, which in turn leads to louder noise from the engine. Make sure at least 3/4 of a quart of oil is present in the engine.
  2. Clean and lube the spark plugs. Dirty or worn spark plugs can cause decreased combustion and louder noise from the engine. Plugged spark plugs may also cause a “pinging” sound when the throttle is opened and then closed.
  3. Check for clogged air filters.dirty air filters can cause increased wear on other parts of the engine, which will lead to louder noise from the machine. If debris is visible on either side of the filter, it needs to be replaced.

Suddenly stop while cutting with Stihl MS 170

If you’re using a Stihl MS 170 and you suddenly stop while cutting, there are a few things you can do to troubleshoot the issue. First, check the saw’s spark plug to see if it’s fouled or damaged. If the plug looks good, then check the air filter to see if it’s clean. If the air filter is dirty, clean it and try again. If the saw still won’t start, then you may need to take it to a qualified repair shop.

Stihl MS 170