Stihl MS 400 Problems: Is Your Chainsaw at Risk?
If you’re like me, then you appreciate a good Stihl MS 400. It’s a workhorse of a chainsaw and can easily handle whatever you need it to.
However, recently some people have been experiencing a few Stihl MS 400 Problems. So, let’s find out!
Stihl MS 400 Problems
It is common for the Stihl MS 400 to have problems with the carburetor. The most common problem is that the carburetor gets dirty and needs to be cleaned.
This can be done by taking it apart and cleaning it with a brush or by using a carburetor cleaner. However, below we will discuss more problems with this product.
Leaking Fuel
One of the most common Stihl MS 400 problems is that it leaks fuel. Several factors can be a result of a few different things.
The first thing you should check is the gasket on the fuel tank. If this is damaged, it will need to be replaced.
Also, it can happen when the saw fuel line is clogged. This can be fixed by replacing the fuel line or cleaning it with a wire brush.
On the other hand, the STIHL chainsaws have a one-way valve oil tank ventilation system. The chainsaw’s oil reservoir is incorporated into the air intake system.
When the chainsaw is in operation, it removes combustion gases and debris through the engine. Because of this, no oil leaks onto the operator when this system is utilized.
We recommend changing your chainsaw’s oil in every tank to ensure the best lubrication for your engine.
Cutting Problems
Another expected issue people have with their Stihl MS 400 is that it has difficulty cutting. This can be caused by a number of things, but the most typical culprit is the dull chain.
When the chain is dull, it will need to be replaced. You can also sharpen it yourself if you have the proper tools.
Another possibility is that the bar is bent. Then, it will need to be replaced. Besides, the guide bar may need to be replaced if it is excessively worn.
Additionally, the problem might be that the chain is too tight. This can be fixed by loosening the chain.
Bar Oil Not Dispensing
One of the most common problems with the Stihl MS 400 is that the bar oil is not dispensing properly.
Also, it can happen that the oil pump is not working correctly. This can be fixed by replacing the oil pump. Besides, when the bar oil line is clogged, then this problem can happen.
To fix this, you will need to clean it with a wire brush or replace it. Keep In mind that the bar oil line might need to be replaced if it is excessively worn.
Otherwise, the bar oil might not be dispensing properly.
Chain Coming Off
It is also a major problem for the chain to come off the Stihl MS 400. This can be caused by several things, but the most familiar reason is that the chain is too loose.
To fix this, tighten the chain. It can happen when the sprocket is damaged. In some cases, you need to replace the saw chain.
Moreover, the problem can also be that the clutch is not working correctly. This can be fixed by replacing it.
Overall, when you notice that your Stihl MS 400 chain is coming off, it must need to be replaced.
Saw Won’t Start
If you’re having trouble starting your Stihl MS 400, the first thing you should check is the spark plug. When you notice that the spark plug is dirty, then clean or replace it.
On the other hand, the problem might be that the fuel is not getting to the engine.
Sometimes, if the fuel line is clogged, then this problem can happen. You must replace the fuel line or clean it with a wire brush to fix this problem.
Also, the carburetor might need to be cleaned or replaced. You need to check if the flywheel is moving freely. If it is not, you will need to fix it.
Power Loss
When you notice that your Stihl MS 400 is losing power, the first thing you should check is the spark plug of your saw.
If it is dirty, then clean it or replace it. On the other hand, the problem might be that the fuel is not getting to the engine. Besides, this problem can occur, if the fuel line clogged.
If this happens, then replace the fuel line or clean it with a wire brush. Besides, the carburetor might be dirty, and you will need to clean it.
Also, another possible reason is that the air filter is clogged. This can be fixed by replacing it or cleaning it with a wire brush.
Vibrates Excessively
When the Stihl MS 400 is vibrating excessively, it might be that the bar is loose. To fix this, tighten the bar. Also, when the chain is too tight, it can cause the saw to vibrate excessively.
In this case, you will need to loosen the chain. On the other hand, the problem might be that the engine mounts are loose.
This can be fixed by tightening them. Moreover, the problem can be that the blade is unbalanced, then fix the blade.
As you can see, there are a few common problems that people have with their Stihl MS 400. But you can easily fix most of these problems.
So, if you’re having trouble with your Stihl MS 400, don’t worry because chances are that the problem can be easily fixed.
FAQs
Is The Stihl 400c Fuel Injected?
Yes, it has an electronically controlled fuel injection system, which makes starting the saw easier. This saw also has an oil pump with two settings- one for normal cutting and a second, high-pressure setting for improved lubrication during tough cuts or extended use.
Additionally, the Stihl 400c has a catalytic converter that reduces harmful emissions by up to 80%. So, it’s not only a great saw, but it’s also environmentally friendly.
Why Does The Stihl Saw Keep Cutting Out?
This can happen when the engine may stall, and the carburetor is unable to supply enough or insufficient fuel. Besides, the air filter might be clogged, and thus it doesn’t allow the engine to breathe properly.
Another possibility is that the spark plug is dirty or damaged, and needs to be replaced. So, if your Stihl saw keeps cutting out, you should check these possible causes and fix the problem.
Is The MS 400 A Pro Saw?
The Stihl MS 400 is a great saw for professionals, as it is powerful and has many features that make it ideal for commercial use. However, it is also a great saw for homeowners who need a powerful and reliable tool to tackle tough projects around the house. Whether you’re a professional or a homeowner, the Stihl MS 400 is a great choice.
Final Thoughts
The Stihl MS 400 is a great chainsaw, but it can have its problems like any tool.
However, as you know, most of these problems can be fixed by yourself with little know-how. So, don’t be discouraged if your Stihl MS 400 isn’t working perfectly.
Just take a look at some of the issues above and see if you can fix them yourself.
