How to Start a Stihl Weed Eater | 6 Step Guide (Quickly & Easily!)


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Stihl built a name for itself by producing tough chainsaws. In addition, the firm has expanded its capabilities to include a wide range of power instruments, including weed eaters. Stihl produces over two dozen trimmer types, spanning from light-duty household versions to expert weed eaters. Weed eaters with gas engines make a lot of noise and may cover a lot of ground. Thus, we have made this post on how to start a Stihl weed eater.

When using these instruments, always put on protective clothes, earmuffs, and safety glasses before beginning. According to Stihl, minors should not be permitted to use a Stihl weed eater.

How to Start a Stihl Weed Eater

How to Start a Stihl Weed Eater

While the technique for starting a Stihl Weed Eater varies significantly depending on the model, most operations remain the same. Here’s how to get started with a Stihl weed eater:

Examine the gas tank.

This stands as the foremost step you should take. Examining the gasoline tank entails ensuring sufficient fuel in the container for the start-up procedure.

If the fuel level drops, it may cause problems igniting the machine or preventing it from starting. This step is required for gas Stihl weed eater versions. However, it is not required for electric variants.

Create a 10-meter area around you.

How to Start a Stihl Weed Eater

The following step must get completed for your protection. Make sure the space around you is clean and free of anything that may catch fire quickly.

Why are you doing this? The weed eater’s blade will begin spinning when the machine is turned on. An accident may occur if, for example, the clipper line makes touch with a foreign item while rotating.

Also, when you start the weed eater equipment, make sure there are no other people within a 10-meter area.

Press the “On” button.

Synchronize the throttle by pressing and holding the spin trigger. This is known as the lockout gear in various models.

The accelerator trigger interlock, often known as the lockup lever, serves primarily as a safety feature.

Press the accelerator trigger and turn the starting to “ON” while keeping both levers engaged.

The “ON” setting on gas-powered devices is represented by the letter “I,” but other versions use the more straightforward “Start” phrase. Other models also need you to switch the engine on before moving the lever to the start point. Once you’ve completed this, carefully relax the tension on both levers.

Switch to the choke stance.

Switch to the choke stance.

The device’s choke adjustment comes next. If the engine is cold, set the choke to “FULL,” If the machine is warm; set it to “Half-Choke.” Drag down the gasoline bulb after that. Carry on in this manner until the tube gets filled with gasoline.

Lay the cutter flat on the ground.

Place the weed eater on the floor now. This is a crucial step in using a Stihl weed eater.

Ascertain that the trimmer is on the floor and that the reverse side of the starting grip holder is in touch with the floor. Ensure the trimmer line does not contact any objects or the floor.

Gently pull the starting trigger until friction is felt.

Finally, pull the starting grip handle carefully. When you find friction, continue to offer a vigorous pull.

The rope must now get led into the rope vault to avoid entanglement. Give four additional powerful and quick pulls before moving the choke handle to the intermediate position. Carry on in this manner until the machine’s motor starts.

Finally, after powering up, set the throttle setup to idling.

Why won’t my Stihl Weed Eater start?

Why won’t my Stihl Weed Eater start?

If you have a Stihl Weed Eater and are facing problems starting it, there are a few things you may try. First, double-check that you’re following the correct approach for getting started. If you followed Stihl’s recommended starting technique, you should inspect the following parts:

Carburetor that has been flooded

Your Stihl trimmer may be saturated so that it won’t start. If you’re acquainted with how these engines work, you’ll notice that they’ll start after 3 or 4 tugs on the starting cord when they’re flooded.

If your Stihl trimmer still doesn’t start after many attempts, it might be owing to a saturated carburettor. Shut off the choke and repeatedly pull the rope while pressing down the throttle till it runs over.

Filter that is clogged

Another explanation your Stihl trimmer didn’t begin is because of this. When the air filter becomes clogged, airflow is restricted, and ignition is prevented.

Incomplete combustion is indeed a result of this. You must either change the air filter or wash it to remove any dirt to resolve this problem.

Fuel Pump Clog

According to a general guideline, your Stihl trimmer must only be loaded with new fuel, not residual gasoline from the prior season. Clogs will build in the fuel filter if you are using old gas.

The remarkable thing is that you can get rid of them. If something doesn’t work, the gasoline filter must get replaced.

A Spark Arrestor that is blocked

A Spark Arrestor that is blocked

Some other possibility your Stihl trimmer didn’t start is if the spark clamp is blocked. The spark arrestor keeps debris out of the engine, preventing harm. However, this also inhibits the mixing of air and fuel. You’ll need to update the spark connector or wash it out by eliminating any debris to solve this problem.

A faulty spark plug

It’s possible that your Stihl trimmer won’t start if the spark plug is damaged. When water is spilt into the cylinder, the unit is kept idle for an extended period, or too much oil accumulates on the electrode, a defective spark plug may develop.

Gas/Oil Mixture That Isn’t Right

If the gas-oil combination is poor, your Stihl trimmer will not start as well. As previously stated, gasoline must get used up at some point, and remaining fuel from the previous season must never get utilized. Furthermore, using oil that isn’t from a reputable brand might affect your engine’s potential to start.

The Engine Has Stopped

Your Stihl trimmer’s motor is most likely seized if you’ve exhausted all of the following options. You’ll have to take your Stihl to a service shop to get it repaired or replaced.

Starter with Bad Recoil

Starter with Bad Recoil

It might be due to a faulty recoil starter if you’re having trouble beginning your Stihl trimmer. You must activate the recoil starter by tugging the rope without pushing it down on the accelerator to test it.

Eliminate any debris that is obstructing the rotor and casing of the generator. Ensure the spring is latched on both ends. Also, check sure the starting spring isn’t too far out of position. Otherwise, it’ll scratch the casing and cause significant damage.

Faulty Recoil Pulley

The rebound pulley is a component of the starting gear that ensures the spring catches onto the flywheel for maximum power. If this component is broken, you probably wouldn’t be able to use your Stihl trimmer’s starting motor.

Spring with a Broken Rewind

The rewind elastic is in charge of keeping the starting cord taut. If this component breaks, your Stihl trimmer will not start properly.

If this component breaks, you must replace it right once since it may cause severe harm or destruction if mistreated.

Damaged Flywheel

Damaged Flywheel

The problem may be with the flywheel motor, but it is really with the recoil starter. If this component is damaged, you will be unable to activate the starting mechanism on your Stihl trimmer.

If there are any fractures in the flywheel, they must be replaced. Otherwise, the piston will not be able to travel freely, resulting in reduced power.

Bad Piston Rod Seal

If the piston rod seal on your Stihl trimmer is broken, it will not start. This component keeps the engine lubricated, and a crack or leak might make it very hard to activate the starting motor.

If there is any leakage, you must repair the piston rod seal and probably replace the piston rod.

Many people have problems with their Stihl wood eater not igniting. However, these issues may get resolved by following the steps outlined above. If all else works, take your Stihl to a local service shop and perform any required fixes.

Frequently Asked Questions

Do Stihl weed eaters have a second cycle?

A two-stroke motor is used in Stihl and other weed trimmers, which means the engine accomplishes one ignition cycle in a single level of the drive shaft. Oil is burned as a fuel chamber simultaneously as the fuel to keep the motor oil.

What sort of fuel does a Stihl weed eater run on?

This machine operates on a 1:50 combination of motor oil and gasoline. Because it is created exclusively for STIHL engines, we strongly suggest STIHL HP ULTRA TWO-STROKE ENGINE OIL.

What is the weight of a Stihl weed eater?

Typical Stihl weed eaters for homes weigh around 8 and 10 pounds on typical. There are battery and fuel variants in this line.

Is it possible to use ordinary gas in the Weed Eater?

Yes. Regular gasoline may be used in 4-cycle weed eaters since the gas and oil are kept separate. Because many tiny engines aren’t suited to accommodate ethanol, don’t ever use gasoline that includes more than 10% of the component.


In conclusion, the Stihl weed eater provides excellent help for homeowners. At this point, the above highlight on how to start a Stihl weed eater will aid you immensely.

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