Stihl MS 660: Common problems and efficient solutions

If you’re a professional logger or arborist, then you know that the Stihl MS 660 is one of the best chainsaws on the market. But even the best chainsaws can have problems from time to time. In this article, we’ll take a look at some of the most common problems with the Stihl MS 660, as well as some efficient solutions.


When did the Stihl MS 660 come out?

The Stihl MS 660 is a powerful chain saw that was first introduced in 2004. It quickly became popular among professionals and serious hobbyists for its high power and low weight. The MS 660 has since been updated with a new engine and other improvements, but it remains one of the most popular saws on the market.

What CC is a Stihl MS 660?

The Stihl MS 660 is a 91.6 cc chainsaw. It is a powerful saw that is used for a variety of tasks, such as felling trees, cutting firewood, and clearing brush. It is a popular choice for many users because it is a versatile and durable saw.

What’s the MS 660 specification?

  • Displacement: 91,6 cm³
  • Power output: 5,2/7,1 kW/bhp
  • Weight: 7,4 kg
  • Power-to-weight ratio: 1,4 kg/kW
  • Sound pressure level: 101 dB(A)
  • Sound power level: 114 dB(A)
  • Vibration level left/right: 7/7 m/s²
  • Saw chain pitch: 3/8″
  • STIHL Oilomatic saw chain type: Rapid Super (RS)

How many horsepower does a MS 660 have?

A Stihl MS 660 chainsaw typically has between 60 and 70 horsepower. The amount of horsepower that a particular saw has can vary depending on the model and year it was manufactured, as well as the specific engine installed in the saw.

Stihl MS 660

How much does a Stihl 660 weight?

The Stihl MS 660 weighs 7.4 kg, making it one of the heavier saws on the market. This weight can be attributed to its large engine and powerful cutting capabilities. While the weight may be a downside for some users, it also makes the MS 660 one of the most durable saws on the market.

What chain does the Stihl 660 have from the factory?

The Stihl MS 660 comes with a 3/8″ Picco saw chain from the factory. This is a low-kickback chain that is ideal for cutting firewood and felling trees. The chain has a link that attaches to the bar and the sprocket. This link is what creates the cutting motion. When the saw starts to wear down or if it becomes damaged, the chain can become loose. This can cause the saw to not work properly or even start to catch on objects and stop working altogether.

What’s the Stihl MS660 max bar length?

If you’re looking for a powerful saw that can handle big jobs, then you’ll want to check out the Stihl MS 660. This saw is built for serious cutting, and it can handle a bar up to 36 inches long. That means it can take on even the biggest trees and logs. So if you need a saw that can handle big jobs, the Stihl MS 660 is a great option.

How much is a Stihl MS660?

The Stihl MS 660 is a powerful saw that is capable of felling large trees. It is also a very expensive saw, with a price tag of around $800. If you are looking for a saw that is both powerful and affordable, the Stihl MS 660 is not the saw for you.

Where to find Stihl MS 660 for sale?

If you’re looking for a Stihl MS 660 for sale, your best bet is to check online retailers or classifieds websites. You might also be able to find one at a local hardware store, but availability may vary. Be sure to compare prices and shipping costs before making a purchase.

Does the Stihl MS 660 come with a case?

If you’re in the market for a powerful and durable chainsaw, the Stihl MS 660 is definitely worth considering. But one of the things you might be wondering about is whether or not it comes with a case.

The answer is yes, the Stihl MS 660 does come with a case. This is great news if you’re looking for a chainsaw that will be easy to transport and store. The case is also great for protecting the saw from the elements and keeping it clean when not in use.

So if you’re looking for a top-quality chainsaw that comes with a case, the Stihl MS 660 is definitely worth checking out.

Stihl MS 660


How to reset the MS 660?

If you need to reset the Stihl MS 660, you can do so by following these steps:

  1. Remove the spark plug and unscrew the flywheel.
  2. Remove the points plate and inspect the points. Clean or replace the points if necessary.
  3. Set the points gap to 0.020 inches.
  4. Replace the points plate and screw on the flywheel.
  5. Replace the spark plug and tighten it.
  6. Pull the cord to start the engine.

How to adjust the carburetor on a MS 660?

If your Stihl MS 660 is not performing as well as it should, there may be a problem with the carburetor. Carburetors can often be adjusted to improve performance. Here are instructions on how to adjust the carburetor on a Stihl MS 660:

  1. Turn off the power to the saw and remove the spark plug wire.
  2. Remove the screws that hold down the carburetor cover and remove the cover.
  3. Check to see if there is any debris or foreign material in the air passages of the carburetor. If so, clear it out with a brush or vacuum cleaner.
  4. Clear away any obstructions in the fuel delivery system, including clogged filters and lines.
  5. Replace any defective or worn parts in the carburetor, such as gaskets, needles, and float bowls.
  6. Reattach the carburetor cover and screws, then turn on the power to the saw and check for proper operation.

How to replace bar oil pump for Stihl 660?

If your Stihl MS 660 is leaking bar oil, it’s likely that the bar oil pump needs to be replaced. Here’s how to do it:

  1. Unscrew the four screws that hold the bar oil pump in place.
  2. Remove the old pump and replace it with a new one.
  3. Screw the new pump into place and tighten the screws.
  4. Check for leaks and make sure the pump is working properly.

How tight should the chain be on Stihl 660?

The Stihl MS 660 chainsaw is a powerful saw that can handle mostcutting tasks. However, the chain must be tight to avoid problems. You can check the tightness of the chain by putting yourfinger between the bar and the blade and wiggling itaround. The chain should not move. If it does, you mayneed to adjust the chain tension.


Stihl MS 660: Not to start

If you’re experiencing problems with your Stihl MS, don’t panic! There are a few easy solutions to get things working properly again. Here are a few tips to get started:

  1. Check your oil levels – Make sure your engine is receiving the right amount of oil to run smoothly. A low oil level can cause hesitation and misfire in your engine.
  2. Clean the carburetor – If the carburetor isn’t running smoothly, it could be due to build-up of fuel and air debris. Use carburetor cleaner or an air compressor to clean out the system and restore performance.
  3. Adjust your choke – If the engine is struggling to start, adjust the choke for a more consistent pull. This will help break down any Blockage in the engine that may be causing problems starting up.
  4. Doing this will help ensure that there is enough air/fuel mixture in each cylinder for combustion to occur properly when you finally do attempt starting it up.

Stihl MS 660: The chain tends to be loose

When it comes to chainsaws, most people know that they tend to be a bit loose. But what causes this problem and how can you fix it? The main culprit is the tensioner. If it’s not tightened down enough, the chain will move around and become loose. There are a few ways to fix this issue:

One option is to take the tensioner off and adjust the screws until it’s in the correct position. Another option is to use a lock washer on each screw, which will help keep the tensioner in place. Overall, chainsaw chains are typically pretty loose and need to be tightened down occasionally. By following these simple steps, you’ll be able to keep your saw running smoothly and free from pesky chain problems.

Stihl MS 660: Oiler on chainsaw is not working

If your Oiler on chainsaw is not working, there are a few easy solutions. The first step is to check the chain tension. If the chain is too tight, the oiler may not be able to properly lubricate the chain. To adjust the chain tension, use a hex wrench or a socket to turn the adjusting screw located on the side of the chain housing.

Make sure that the screw is fully tightened before continuing. If the chain is too loose, it will allow dirt and debris to get into the engine and cause problems. To tighten or loosen the chain, use a spanner or an adjustable wrench. Finally, if you notice any oil leaks from around the oiler or from under your chainsaw when it’s in use, it may be time to replace your oiler.

Stihl MS 660


Stihl MS660 problems can be hard to figure out, especially if you don’t know what’s wrong. That’s why I’ve put together this comprehensive guide on how to fix Stihl MS 660 problems and get your equipment back up and running as quickly as possible. So if you’re having trouble with your Stihl MS660, read through this guide and hopefully you’ll find the solution that works best for you.