Stihl Bg 86 Leaf Blower Common Problems and Solutions

Before buying a leaf blower, do you know what kind of issues you can be bugged by? You can get yourself in a pickle if you’re not fully aware. Especially if you’re using a Stihl Bg 86. 

So, how to deal with Stihl Bg 86 Leaf Blower Common Problems

Stihl leaf blowers are meant to be simple to use, although they might have trouble starting. Other than starting problems, there can be issues with fuel and blowing air. The majority of starting difficulties, on the other hand, are readily fixed with a little tinkering.

Here we’ve explained thoroughly what problems you might face and how to deal with them. So let’s get cracking into it- 

Stihl Bg 86 Problems And Solution

stihl bg 86 problems

As we mentioned before, Stihl Bg 86 is one of the best leaf blowers but it has a lot of drawbacks. So, what can be the problems you might face? Let’s see- 

1. Stihl Bg 86 Is Going Rough 

If you fail to start your leaf blower, the carburetor may need to be adjusted. The issue might potentially be with the tool’s muffler. Both of these problems need expert assistance. 

Check the leaf blower, if needed, make carburetor adjustments. And also repair or replace the muffler with the help of a professional.

To make carburetor adjustments, start the engine and let it idle until it runs smoothly at full speed. Turn up the volume on the engine. Repeat this procedure until the blower revs smoothly at full power. 

Squeeze the throttle trigger, positioned under the handle. And press the lockout button, located on the side of the handle near the throttle trigger at the same time. 

The next step is to place the leaf blower down on the ground. Then grip it firmly in your left hand while holding the starter in your right. Slowly raise the starting grip until you can feel it engage. 

The leaf blower should start after a short pull on the starting handle.

2. Stihl Bg 86 Won’t Start

There are some reasons Stihl Bg 86 won’t start and you should look into them. The reasons may be a faulty spark plug or carburetor. Let’s see how it works or shouldn’t work. 

Faulty Spark Plug

Watch out for proof of wear or damage on the spark plug. Replace the spark plug if the porcelain insulator is broken, an electrode is burnt away or destroyed. 

Use a spark plug tester to see if the spark plug is faulty. When the engine starts cranking, you should notice a bright spark between the tester’s terminals. If there is no spark, it’s likely to be faulty. 

In that case, it needs to be changed.

Take a look at our recommended spark plugs testers. You can easily get yours from here-


It’s possible that the carburetor is blocked. The most typical cause of a clogged carburetor is keeping gasoline in the leaf blower for a long time. 

Some of the fuel’s components may evaporate over time, leaving behind a thicker, stickier material. This sticky petrol might block the carburetor. As a result, the engine will not start at all. 

If the carburetor is jammed, use carburetor cleaner to clean it. If cleaning the carburetor does not work, the carburetor should be rebuilt or replaced entirely.

3. Stihl Bg 86 Starts Then Stops

Another problem is Stihl Bg 86 will start but stop after some time. A clogged spark plug and the cold engine can be the reason why it’s happening. 

Clogged Spark Plug

The spark arrestor is a tiny screen that stops sparks from being produced by the engine. The spark arrestor might become blocked with ash over time. The engine may stall if the spark arrestor is clogged. 

Remove the spark arrestor. Unclog it with a wire brush, that’s how you’ll clean it. 

You can find the best wire brushes from ur suggestions below-

Cold Engine

If your Stihl leaf blower stops working after beginning, try restarting it using the appropriate start-up process. If the blower still won’t turn on, it’s possible that the engine is cold. 

Adjust the choke lever, which is right under the fuel pump bulb. Position it to point to the symbol that looks like a slanted line. 

5. Stihl Bg 86 Leaf Blower Has a Fuel Problem

The gasoline tank of a Stihl Leaf blower might go dry. This happens if a lot of time has passed since maintenance. Then the refueled blower might have trouble starting. 

Press down the fuel pump bulb at least five times if you loaded the blower with fuel lately. Even if the bulb is fully charged, complete the procedure.

Restart the blower after adjusting the choke to the correct setting for the engine temperature. 

Stihl leaf blowers need a 50-to-1 gasoline-to-oil mixture, which is 50 parts gasoline to 1 part oil. Use ordinary fuel and two-cycle, air-cooled engine oil.

Stihl recommends that you mix 2.6 ounces of oil per 1 gallon of gasoline for the correct gasoline-to-oil ratio.

6. Stihl Bg 86 Leaf Blower Won’t Blow Air

Your blower might not blow as much air as it used to. The blower fan is most likely damaged. It’ll not be able to blow air with constant force if the fan is defective. 

Unscrew the fan housing from the side of the blower to check. If the fan is broken or damaged, replace it. Replace the old blade with a new one when it has been removed.

Here are our top-picked fans in case you’re replacing the old one. Take a look at these-

If the fan is slackened, only then tighten it. So make sure you know what’s wrong in there.

That’s all we had to offer today. We hope you now know all the problems that may occur with your Stihl Bg 86.

Frequently Asked Questions

Question: Why is my Stihl Bg 86 losing power? 

Answer: If your Stihl Bg 86 is losing power, please check the air filter. If you find any damage to the filter, change it. 

Question: Why is my Stihl Bg 86 not blowing hard? 

Answer: First of all it might be the engine’s problem. If the engine is good, then check if the blower fan is damaged. If it is broken, buy a new one. You have to unscrew the fan from the side of the blower. 

Question: How much does the Stihl bg 86 cost? 

Answer: The stihl bg costs 200$- 600$. Also, the price varies, it depends on the battery.


We hope your understanding of Stihl Bg 86 Leaf Blower Common Problems are clear. We hope you figured out what went wrong with your leaf blower. Let us know how you cracked it.

Happy gardening! 

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