8 Causes of a Husqvarna Chainsaw Smoking

Your chainsaw is smoking, and you need to know why. In order to prevent further damage to the saw from being done while it is in operation and the problem is not fixed, I have compiled a list of things to check.

An overheated bar and chain, too much oil in the fuel mixture, water in the fuel system, or a blocked air filter can all cause smoke to come from your Husqvarna chainsaw.

Smoking Husqvarna Chainsaw:

  1. An improperly or inadequately sharpened chain
  2. It’s a tight chain
  3. Oil tank for bar and chain
  4. Incorrect bar and chain oil
  5. Lack of lubrication due to a clogged oiler
  6. Air filter obstruction
  7. An excessive amount of oil was used in the gasoline.
  8. Fuel with water

You should use extreme caution when attempting to diagnose and fix issues with your chainsaw. In order to remove the spark plug boot, the chainsaw must be turned off, allowed to cool, and then the boot was removed.

8 Causes of a Husqvarna Chainsaw Smoking

Husqvarna Chainsaw Bar & Chain Smoking

Smoke coming from your Husqvarna chainsaw during cutting indicates increased friction between the bar and chain.

A worn chain, one that isn’t properly lubricated, or one that gets stuck on the bar could all be to blame.

The Husqvarna Chainsaw’s Chain Is Either Dull or Wrongly Sharpened.

If the chain on your chainsaw is dull, it will smoke and not cut wood very well. When cutting wood, greater force is required when the chain is dull or not sharpened properly.

Metal on metal friction from the pressure creates heat and smoke.

These indicators point to a worn chain:

  • More force on the bar is required to make the cut.
  • Producing fine sawdust is an inevitable byproduct of every cutting operation.
  • Problems with the chain or chips in the metal.
  • Rakes and teeth that have worn down to nothing.

The chains are easy enough to sharpen on your own. Don’t try to sharpen chains yourself if you haven’t done it before; hire a specialist. A poorly sharpened chain poses a significant risk to anyone using it.

Husqvarna Chainsaw with No Bar or Chain Oil

If your chainsaw isn’t lubricating its bar and chain, you’ll experience increased friction. Possible causes include insufficient oil in the tank or a jammed oiler.

If the oil in the bar and chain tank is low or gone completely, fill it.

Run your chainsaw at about half to three-quarters throttle to make sure there is enough oil on the bar. Hold the bar less than a foot off the ground and observe for a line of oil to drip off it.

Check that the bar is in good shape and the oil channel is not clogged if lubrication is poor. A damaged or worn guide bar should be replaced, and the oil channel should be cleaned if necessary.

It’s a good practice to make of refueling your Husqvarna and then immediately reapplying bar and chain oil. However, you may need to check and refill the oil in the saw more frequently if you are using oil that is too thin.

Bar and Chain Oil Not Suitable for a Husqvarna Chainsaw

Bar and chain damage and higher friction due to too little oil could result in smoke coming from the bar. Too light of an oil and the bar and chain can just slide right off.

Always use high-quality bar and chain oil, such as this one from Husqvarna.

Tightening the Chain on a Husqvarna Chainsaw

It’s important to keep an eye on the chain’s tension and tighten it up as necessary because it will loosen up with use. But if the chain is excessively tight, it won’t be able to rotate smoothly around the bar, leading to greater friction and smoke.

Changing the Husqvarna chainsaw’s tension is as simple as:

  • Taking off the spark plug wire.
  • Pull the chain’s brake release lever.
  • Raise the cover over the clutch and chain brake and remove the nuts holding the bar in place.
  • Keep the bar’s nose in the air.
  • If the chain is too loose, loosen it by turning the tensioning screw counterclockwise, and if it’s too tight, turn it clockwise.
  • After determining the proper tension, tighten the bar retaining nuts while keeping the bar nose up.

The chain should be snug around the bar without restricting its movement. You don’t want it to be so slack that it dangles from the guide bar.

The Husqvarna Chainsaw Engine Is Smoking

The presence of smoke while using your chainsaw indicates a problem with airflow, such as a clogged air filter or an incorrect fuel mixture.

The Husqvarna Chainsaw Had a Clogged Air Filter

Using a chainsaw is an extremely grimy occupation. Small wood chips and sawdust are flung around.

Your chainsaw’s engine will run more efficiently if you utilize an air filter. A filter prevents debris like dirt and sawdust from damaging the engine by entering the carburetor throat.

If you only use your chainsaw occasionally, you should inspect the air filter before each usage and change it once a year. Regular usage of the saw necessitates that the filter be checked on a regular basis and replaced if it becomes too dusty or broken.

If the filter isn’t checked and cleaned on a regular basis, it might become so dirty that it blocks airflow.

Rich fuel mixtures cause engine smoke and poor performance. An insufficient air supply could cause the engine to fail.

Inadequate Gasoline/Oil Ratio for a Husqvarna Chainsaw

Husqvarna chainsaws need a 50:1 mixture of gas and oil. The engine may start smoking if you use more oil than this.

When you figure out that the smoke is originating from a bad gas-to-oil ratio, you may fix the problem by draining the tank and refilling it with new fuel.

There shouldn’t be any lasting effects from this. Inadequate lubrication can lead to carbon buildup in the exhaust, which can disrupt engine operation.

How to Fix a Husqvarna Chainsaw With Water in the Gasoline System

White smoke is an indication that water has made its way into the gasoline. To put it simply, water is corrosive to the engine and fuel system.

Instead of attempting to conserve gas and drain the tank, it’s better to start over with a fresh mixture of gasoline and 2-cycle engine oil.

To assist get rid of moisture and clean the fuel system, using an additive like Sea Foam Motor Treatment is a good idea. Turn on the saw and let it run to circulate the treated gasoline.

Read More: Husqvarna Chainsaw