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Step 1- Locating the Carb At first, identify the carb of your weed eater. Generally, the position of the carb of most of the weed eaters is between the air filter and the fuel bulb. Now, locate the screws that adjust the fuel supply.I'm having a problem with Stihl's instructions for adjusting the high and low speed screws on the carb for my FS 45 trimmer. Everything but the first statement is straight forward and clear. However, the instructions for the H control says "turn H CCW as far as stop (no more than 3/4 turn)" .If the weed wacker engine refuses to rev, it probably has something to do with the fuel. Clean or replace the fuel lines and filters, and make sure the exhaust is not clogged up. If that does not work, clean or replace the carburetor. Important: wear goggles, gloves, thick shoes, long pants and a long sleeve shirt before proceeding.Adjusting the carburetor on your Stihl Weed Eater can be a tricky process. Here are some tips and tricks to make it easier. It’s also important to keep the carburetor clean and lubricated. Use carburetor cleaner and a clean rag to remove dirt and debris, and use lubricating oil to keep the moving parts lubricated.Rotate the LA screw clockwise while the engine is running. Restart the engine and resume turning the screw if the engine stalls before the chain starts to move. Turn the screw until the chain begins to move and then stop. Turn the LA screw one-quarter turn counterclockwise. At this setting, your chainsaw should idle smoothly while the chain ...just replacing the carb on a stihl trimmer. just replacing the carb on a stihl trimmer.To adjust your Stihl chainsaw carburetor, you need to finetune the three screws on the carburetor. The idle speed screw, the low-speed adjustment screw, and the high-speed adjustment screw are also known as LA, L, and H, respectively. The idle speed screw (LA) regulates the engine’s idle speed. When it is too low, the chainsaw will stop ...Adjust this screw too rich and the chainsaw will blubber, too lean and it will over rev. Screws (H) & (L) – Turn the adjustment Screws (H) & (L) down onto their seats (clockwise). Back them off 1 complete turn (counter-clockwise) Screw (LA) – Turn (LA) Idle Speed screw until the chain stops. Then turn counter-clockwise one quarter of a turn.This is typically done by removing the air filter cover. To do this, simply unscrew the screws holding the cover in place and remove it. Once the cover is off, you …Locate the screws on the carburetor that control idle speed and mixture. Turn the idle speed screw clockwise to increase speed or counterclockwise to decrease speed. Adjust the mixture by turning the screw marked “L” for a leaner mix or “H” for a richer mix. Test the weed eater by starting it and letting it run for a few minutes. jeremy fountainthemowermedic1mail and business inquires [email protected]://www.youtube.com/themowermedic1https://www.facebook.com/themowermed...In the video I repair a weed eater string trimmer made by Stihl model FS 90 RIt came in running but not very good. Would not rev up and then wouldn't run at ...Sep 19, 2020 · Contact: [email protected]#Stihl #Fs 40c Tuning Guide ( beginner friendly)Having issues with your weed eater? This is how to tune and adjust any or s... 8061 posts · Joined 2011. #4 · Mar 29, 2020. Dump out the fuel, change the fuel lines and filter. If you have the ability, take the carburetor off and clean it, blow it out and re-assemble it with new gaskets. Pick up a manual for that model. That will tell you how the adjustments work.Learn how to operate and maintain your STIHL FS 56 trimmer with this online brochure. This instruction manual covers the features, safety precautions, assembly, starting, stopping, and troubleshooting of your trimmer. You can also find tips …Step 1: Determine the Carburetor Type. You will first need to determine the type of carburetor your machine has before adjusting it. I usually do this by turning the …The weed eater choke is a valve which is located on the air intake of the engine in a gas weed eater. It is used to reduce the amount of air that gets into the engine, particularly on a cold start. When the choke valve is shut off, this creates a much richer fuel and air mixture which is imperative when the engine is turned on for a cold start.Step-by-Step Guide to Tuning Up a Stihl Weed Eater. Follow these steps to successfully tune up your Stihl weed eater: Replace the air filter: Remove the air filter cover, take out the old air filter, and replace it with a new one. Clean the air filter cover before reinstalling it. Clean or replace the spark plug: Remove the spark plug using a ...Squeeze the throttle control on the bottom of the shaft and pull the starter rope briskly three times. Slide the choke lever to the center position 2. Pull the starter rope one to four times to start the engine. Continue holding the throttle lever to the shaft for 10 to 15 seconds, and then release it. Listen to the engine at the idle speed.Jun 29, 2019 / Stihl FS 91R factory carb settings? #1. I pickeSqueeze the throttle control on the bottom of the shaft and pull the s Open and close the choke to clean the choke valves. Prime the carburetor by pushing the priming bulb three or four times, and then close the choke and pull the starting cord to start the engine. Set the choke to the "run" position when the engine starts. Spray two or three short squirts of cleaning fluid into the air intake port. This applies to most weed eaters. Not just Stihl! Fine tunin Jun 28, 2019 · Please Subscribe and leave comments Don't forget to hit the notification bell next to the Subscribe tab to get notifications on my latest video. Also time ... If you found my videos helpful, please give them a LIKE and SUBSCRIBE!!Welcome back to Chickanic! Do you use Stihl oil? Has your small engine machine started... Start the weed eater and release the throttle. If the

Adjusting the Carburetor. Spark Plug. Engine Running Behavior. Lubricating the Gearbox. Replacing the Starter Rope and Rewind Spring. Storing the Machine. Sharpening Metal Cutting Blades. Maintaining the Mowing Head. ... Trimmer Stihl FS 120 Service Manual (62 pages) Garden Machinery Accessories Stihl FS-KM Instruction Manual (60 pages) …This applies to most weed eaters. Not just Stihl! Fine tuning the high speed and low speed carb adjustment screws on a grass trimmer and some leaf blowers. Specifically for Stihl fs38,...If the engine accelerates too slowly at this setting, turn the L screw counterclockwise (richer mixture). On the other hand, if the idling is erratic, turn the L screw clockwise (leaner mixture) until the engine runs smoothly. Advertisement. The carburetor on the Stihl FS 80 string trimmer has three adjustment screws.Step-by-Step Guide to Tuning Up a Stihl Weed Eater. Follow these steps to successfully tune up your Stihl weed eater: Replace the air filter: Remove the air filter cover, take out the old air filter, and replace it with a new one. Clean the air filter cover before reinstalling it. Clean or replace the spark plug: Remove the spark plug using a ...

Start the engine and allow it to warm up for five minutes. While the engine is warming up, find the low speed and idle speed adjustment screws. The low speed screw has an “L” stamp, and the idle speed screw has an “LA” stamp next to it. The screws are near the choke lever. Rotate the low speed screw clockwise with a flat screwdriver ...Locate the screws on the carburetor that control idle speed and mixture. Turn the idle speed screw clockwise to increase speed or counterclockwise to decrease speed. Adjust the mixture by turning the screw marked “L” for a leaner mix or “H” for a richer mix. Test the weed eater by starting it and letting it run for a few minutes.…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Firstly, you need to turn to the back side of the trimmer where your. Possible cause: Jan 30, 2017 · We have been using several Stihl FS90R trimmers for years .