Why did my Chainsaw Bar turn Blue

Have you ever seen your chainsaw bar turn blue? If so, don’t worry! Chainsaws are not supposed to be bright blue.

When your chainsaw bar turns blue, it’s usually caused by the blade grinding against the metal guide rail of the chain. As the chain grinds against this rail, it causes the blade’s metal to become thinner and more brittle.

It also can cause deterioration of the oil used inside your chainsaw.

The color of the bar changing often indicates how much wear and tear there has been on it. Blue bars indicate that your saw requires sharpening or replacing.

If your chain turns black, this means that it needs oiling immediately because oil has dried up within its components. If your saw does not have sufficient lubrication, then high friction between moving parts could cause excessive heating which leads to melting or welding together of metal surfaces (and in most cases broken/stuck blades).

Blue / brown spots on the blade show signs of significant wear and require immediate replacement before they become a hazard to you and others around.

As your saw continues to be used, the metal guide rail will continue wearing away at your blade until it is no longer usable. If this happens, make sure that you sharpen or replace your bar before using it again as worn parts cannot be repaired.

When replacing any part on a chainsaw, always remember to use genuine spare parts from a reputable dealer. Using non-genuine replacement parts could cause significant damage and injury.

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So don’t take any risks – buy only original equipment manufacturer (OEM) products for those jobs that warrant their use.

Other Chainsaw Bar Problems Worth Knowing

It’s not just the chain that is prone to wear and tear. There are other parts of your chainsaw that can also cause problems if they’re not tuned up or replaced when necessary.

Chainsaw Bar

The bar, for example, is the part of the chainsaw with teeth on it. If you don’t sharpen them regularly, they’ll become dull and won’t cut as well. 

You may even need a new chain sooner than expected if you don’t keep an eye on how many times you’ve sharpened your blades – some manufacturers suggest changing out your blade every 50 hours or so.


The chain that runs along the guide bar will also need to be replaced if it snaps, or if the teeth are damaged. This is a problem you can avoid by replacing your chainsaw’s chain regularly – every three months at least, but only after using enough oil.

Too much wear on your saw’s chain can lead to poor cutting performance and dangerous kickback situations because there isn’t sufficient lubrication between moving parts.

Bad Spark Plugs

Your chainsaw should fire up with ease when its spark plug is working properly. If it doesn’t start well or starts then dies away during use, this could mean that your spark plug needs to be replaced as soon as possible.

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A faulty spark plug may cause safety problems for yourself and others around.


And while we’re at it, make sure you have enough fuel before heading out into the woods to go after those pesky branches.

If you don’t have enough oil in your chainsaw, then it won’t run smoothly and could cause a lot of damage – to both the saw itself and also to anyone nearby.

Piston Rings

The piston rings are the small metal components that form a seal between your chainsaw’s cylinder and its crankshaft, so this is an important component to watch for wear and tear.

If it isn’t working correctly, engine performance will be affected significantly. Look out for oil leakage or the smell of gas inside the cockpit – these could both be signs that you need new piston rings as soon as possible.

Replacing them yourself can help save money over getting repair work done by professionals, but only if you’re confident doing it yourself. Before attempting any repairs make sure to read through instructions thoroughly.

Other Problems Worth Knowing

There are other problems that can arise from not keeping up with maintenance on your chainsaw, or using non-OEM parts for replacements.

It’s important to take care of these issues before they become more serious:

Broken Chainsaws Guide Bars/Handles – Chainsaws should come with covers over their handles so you know where they’re supposed to be pointing while cutting.

Make sure this cover is firmly attached after every use. Broken handgrips may happen because people neglect them when storing their tools away, or forget to replace worn parts that have been replaced by non-OEM products.

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Worn Sprockets – If your chainsaw is suddenly making a lot of noise, this could be because the sprocket needs to be replaced. Regular replacement of these components will help keep you safe while also helping you stay within budget!  

Leaking Oil Seals – Look for signs of oil leakage on the outside or inside of your tool’s cylinder block if it has stopped working properly and isn’t starting up correctly, especially when new fuel is put in its tank.

A faulty seal here may cause overheating issues which can lead to engine failure over time.

Some other common problems include: 

  • Blades not cutting properly
  • Chain slipping off sprocket
  • Engine overheating due to lack of oil
  • Broken pull cords    
  • Burned out spark plugs   
  • Worn out piston rings