Stihl carburetors have adjustment screws that let you change the air and fuel mixture in the engine. Turn the high-speed screw, marked 'H' counterclockwise until it stops. Tighten the 'L' screw all the way, then turn it one turn counterclockwise to open it. Start up the engine and allow it to warm up. Click to see full answer
How do you adjust the carburetor on a Stihl Weed Eater?
26/05/2018 · Cables on these will stretch and need to be adjusted to maintain wide open throttle. Quick, easy and fast method to do this. Applies to 4-mix Stihl units i...
How do you adjust the idle on a Stihl?
25/03/2020 · How to Adjust the Carburetor on a Stihl Weed Eater Turn the high-speed screw, marked 'H' counterclockwise until it stops. Tighten the 'L' screw all the way, then turn it one turn counterclockwise to open it. Start up the engine and allow it to warm up. The cutting tool will rotate. Press the trigger of the machine to rev the engine.
How do you adjust the H screw on a carburetor?
16/05/2020 · How to Adjust the Carburetor on a Weed Eater. Locate the two fuel-adjustment screws on the side of the carburetor. Tighten the screws with a small Phillips screwdriver to position the needle end of the screws into the "jets" of the carburetor. Adjust the screws. Slowly turn the "Lo" screw counter clockwise until the engine idle smooths out.
How do I adjust the speed of my trimmer head?
Most Stihl trimmer carburetors have adjustment screws for high- and low-speed operation, as well as an idle adjustment. The manufacturer’s recommended adjustment procedure is to screw both the high-speed screw — “H” — and low-speed screw — “L” — clockwise until they seat, then back each off a complete turn.
How do you adjust the throttle cable on a Stihl?
40 second clip suggested3:29EP Tech Tip #1 - Throttle Cable Adjustment - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo underneath this plastic cover here there is normally a Torx screw. And as you thread it in so youMoreSo underneath this plastic cover here there is normally a Torx screw. And as you thread it in so you're turning it clockwise. It's going to raise.
How do you adjust the high and low on a Stihl weedeater?
Start the trimmer and hold the throttle trigger in all the way to get the trimmer head spinning at maximum speed. Turn the H screw clockwise with a carburetor adjustment tool until the head is spinning as fast as it will go, then back off the screw carefully until the RPMs start to decrease.
How do you adjust the idle speed on a Stihl weedeater?
How to Adjust the Idle on a Weed EaterPlace the Weed Eater trimmer on a workbench or other flat surface. ... Locate the idle speed adjustment screw situated to the side and slightly behind the air filter. ... Turn the adjustment screw to the right, or clockwise, to increase the engine idle speed.More items...
Why does my Stihl trimmer bog down?
The trimmer can sputter and stall if it isn't getting enough fuel, and that can happen simply because the fuel filter is dirty. Fuel filters are inexpensive, and it's more practical to replace a dirty one than it is to try to clean it. ... While you're cleaning the filter, try running the trimmer with the cap loosened.
How do you adjust the carburetor on a Stihl hedge trimmer?
Turn the high speed screw (H) counterclockwise as far as stop (no more than 3/4 turn). Turn the low speed screw (L) clockwise as far as stop, then turn it back 3/4 turn. *Please note: Do not overturn the screw as this may damage the thread.27-Apr-2020
What is the La adjustment on a Stihl?
The LA setting on Stihl chainsaws is controlled by a screw on the outer housing of the engine that adjusts the flow of fuel and air through the carburetor. ... These screws adjust the engine's output at low and high speeds.
How do I reset my Stihl carburetor?
Return a type A carburetor to its factory setting by turning the "H" screw counterclockwise until it stops, turning the "L" screw clockwise until it is seated, then backing it off one full turn.
What does L and H mean on a carburetor?
They are typically labeled L (low speed jet), H (high speed jet), and I (idler jet).18-Apr-2012
How do you adjust the carburetor on a Stihl FS 80?
Determine your altitude above sea level. ... Turn the high-speed screw approximately one-quarter turn for every 3,300 feet (1,000 meters) of altitude change.Turn the high-speed screw clockwise to fine-tune it for high-altitude use. ... Turn the high-speed screw counterclockwise to fine-tune it for use at sea level.More items...
How do I fix the recoil on my Stihl weedeater?
35 second clip suggested7:01HOW TO FIX STIHL PULL START RECOIL - YouTubeYouTubeStart of suggested clipEnd of suggested clipWe need to put the string. Through the handle and tie a knot in it. So it'll pull it back into placeMoreWe need to put the string. Through the handle and tie a knot in it. So it'll pull it back into place.
Where is fuel filter on Stihl weedeater?
The gas filter is inside the fuel tank on the end of the incoming fuel line. When your Stihl becomes difficult to start or often stalls even with a full tank of fuel, chances are the fuel filter is dirty.17-Jul-2017
Can you adjust carburetor on Stihl chainsaw?
Hunker may earn compensation through affiliate links in this story. You can adjust your carburetor on a string trimmer. Stihl is best known for its chainsaws, but the company also manufactures string trimmers, and they're among the best on the market. As far as the engine is concerned, gas-powered Stihl trimmers operate on ...
Why does my Stihl trimmer smoke?
When the carburetor isn't adjusted properly, the engine may smoke, due to fuel/air mixture that's too rich, or it may race or stall, which is usually because of a lean mixture. You adjust the fuel/air mixture using three screws ...
How to remove string from a spool?
Step 1: Remove the String Spool. Set the trimmer on a flat surface with the trimmer head hanging over the edge so it can spin. For safety, it's a good idea to remove the string spool before you start so no one gets hurt. You do this by holding down the tabs on the spool cover, lifting off the cover and then lifting off the spool .
Can you adjust a Stihl string trimmer?
If you can adjust a chainsaw carburetor, you can adjust a Stihl string trimmer carburetor, because the procedure is almost exactly the same. Advertisement.
