Instead, it bogs down but stays running. Trimmer: Engine Will Idle But Dies At Full Throttle. I just checked the spark arrestor screen, and it was clean. Slow to no acceleration on Mantis 2. This could be the possible reason behind the weed eater stall after being given its throttle. PNC scoring normally affects the starting ability first as it lowers the starting compression below 100 psi. example would be to give it slow gas and let it rev up slow, but it eventually dies out. Cleaning Your Troy-Bilt Weed Eater Carburetor Below is a short step-by-step process of cleaning your carburetor. Since the engine turns off shortly after starting your weed eater, the idle speed may just be too slow. The repair and symptom guide will help you better identify the part needed to be replaced and how. Cylinder: replaced new head gasket. unstuck piston ring and reinstalled 3. Options. Was the compression weak when it stopped ? Drop a bit of heavy oil onto the piston rings, then slowly crank the engine. 8K subscribers Subscribe 237K views 4 years ago How to fix a Husqvarna weed eater with a fuel flow issue. When it comes to gas-powered weed eaters, the problem often lies with the quality and flow of fuel. cleaned it, popped it in and voila! lots of smoke for a bit, but running like a champ. How to replace the air filter and fuel filter on an Echo SRM225 weed trimmer that bogs at full throttle. If I chop the throttle down before it dies it wont shut off and will idle. A string line within a rotating head. Solution: The solution is pretty simple. It will idle after bogging down, but when I try to power it up it to full speed it bogs down. Another scenario where the weed eater may fail to run is when the engine is over-flooded with fuel. Weedeater Bogs Down When AcceleratingThis is due to maintenance and equipment problems. I took the carb off and cleaned it out. As the carburetor is clogged, the air and fuel are not mixed correctly, resulting in a bogging down effect. This could be the possible reason behind the weed eater stall after being given its throttle. On a two-stroke, shutting off after warm-up is usually one of 2 things: Either losing spark when the coil gets hot, or a plugged/defective fuel tank vent. It idling could mean that its sucking air, and can compensate at idle but not when the throttle is open. working on an Echo SRM225 weedeater. Weed eaters are important in gardening and lawn maintenance. Start the engine and shoot starter fluid or wd40 at the crank seals and the base gasket. I have a Stihl FS55 Weed Eater that last season I lost the idle screw on it so I decided to just put a new Zama carb on it. Took it back a part, went deeper into the carb, using spray can carb cleaner on everything I could see. Hi, I have an issue with my trimmer. A long connecting shaft with a handle. If your trimmer engine idles, but stalls on throttle, check the following parts: the gasket, primer bulb, fuel filter, air filter, fuel vent, fuel line, and carburetor. Apr 5, 2017 / Stihl FS55 bogging down #1 Good afternoon everyone, new here. So this year I put the new Zama pre-adjusted carb on it, replaced the fuel filter, air filter and spark plug. Redmax EBZ8500 Bogs Down and Dies at Full Throttle>Redmax EBZ8500 Bogs Down and Dies at Full Throttle. Carburetor Adjustment Tool Kithttps://amzn. Regular 2-cycle oil should show small wisps of smoke as you pull the trigger. Remove the spark plug using a socket wrench. I may try and run the idle speed up higher right below where clutch would engage and see if the bogging issue improves, if not Ill take the . I had the same trouble with my 2 cycle weed eater. Besides having insufficient fuel, using old fuel can also cause the machine to bog down. He said I should take the muffler apart and see if it was clogged up with carbon. Easy step by step repair without tearing into the ca. In order to locate the source of the problem, you need to trace the path taken by the fuel. The first thing to do is to test the current idle speed of the weed eater. Why Is My Echo Trimmer Bogging Down?. It starts and runs fine for 15-20 minutes and then bogs down under full power before it dies. Why does my weed eater primer bulb not filling?. There are a couple of potential reasons why your weed eater is bogging down when accelerating. Weedeater bogging down while accelerating is a common problem faced by many gardeners. Weed Eater Dies When I Give It Gas? (7 Possible Causes. Since the engine turns off shortly after starting your weed eater, the idle speed may just be too slow. Just bought a used MAC 1385L weedeater, it cranks fine, and runs for about 5 minutes, then bogs down when hitting the throttle switch, … read more Joe Owner Kingsland Auto & M Vocational, Technical or Tra 1,617 satisfied customers My Stihl weedeater will start when fully choked but when I. Is there a chance something is in the head? Technician: Curtis B. How To Easily Fix A Weedeater That Bogs Down In this easy to follow tutorial I show you how to repair a weedeater or any other grass trimmer that bogs down and wont throttle up. If in the past it had run with too much oil, the exhaust port could be plugged with carbon. My dad used to be a small engine mechanic and gave me a suggestion. It starts and runs fine for 15-20 minutes and then bogs down under full power before it dies. Here is what i have exactly: Stihl . Weedeater Bogs Down When Accelerating. Ultimately, this means less power when accelerating because your engine isnt Either case can lead to bogging down at high speeds. This is because such fuel moves unstably via the engine’s carburetor and prevents it from starting. There is probably a little screen in there that has carbon buildup on it. How to fix a Husqvarna weed eater (no more bogging down). This did not solve the problem. A diaphragm and gasket kit, carb overhaul kit, may be the route to go. Echo SRM225: runs butt dies when applying throttle. If you have too much oil it will bog down, too little and you will burn it up. Fuel strainer ,hose to carb, and with no adjustment, !! Ask Your Own Small Engine Question New fuel line and filter. Check all the seals and gasket mating areas as well. It’s generally best to purchase a carburetor rebuild kit prior to starting. Ask Your Own Small Engine Question. Be sure that you have the same carburetor as the old one. Apr 5, 2017 / Stihl FS55 bogging down #1 Good afternoon everyone, new here. If it runs well, or at least better with the choke partially on then you more than likely have an obstructed fuel passage. When a weed eater is used at full speed, the most typical reasons for it to fail are issues with the fuel, an inadequate amount of air intake, or issues with the exhaust. had the exact same problem: idling like crap then when I pulled accelerator lever it would conk out almost every time. As the carburetor is clogged, the air and fuel are not mixed correctly, resulting in a bogging down effect. This could be the possible reason behind the weed eater stall after being given its throttle. Small Engine Technician. Another scenario where the weed eater may fail to run is when the engine is over-flooded with fuel. You can thank the EPA for that and Echo being forced to tune their carbs so poorly to meet regulations. Your problem will be sorted out immediately if this is the main cause of the problem. Remove covers to gain access to the carburetor. If it bogs when you hit the throttle, back the L screw out a little more (FYI, a little bit goes a long way - even 1/8 turn or less can make a big difference). Step 1: Check Your Model Number. A clogged carburetor is most commonly caused by leaving fuel in the string trimmer for a long period of time. Octane and fuel to oil ratios are . had the exact same problem: idling like crap then when I pulled accelerator lever it would conk out almost. Things Ive done/replaced so far: 1. hedge trimmer starts & idles, dies with throttle. As the carburetor is clogged, the air and fuel are not mixed correctly, resulting in a bogging down effect. Why does my Echo Weed Eater bogs down? It’s 110% the hidden fuel mixture screw. This is because such fuel moves unstably via the engines carburetor and prevents it from starting. After running at full power for about 10 minutes, the engine speed slowly decreases until it barely runs. Then turn in the L screw until the RPMs start to drop, the back it off a little bit. Just bought a used MAC 1385L weedeater, it cranks fine, and runs for about 5 minutes, then bogs down when hitting the throttle switch, … read more Joe Owner Kingsland Auto & M Vocational, Technical or Tra 1,617 satisfied customers My Stihl weedeater will start when fully choked but when I. I have a red max EBZ 7150 a few years old and when its running full throttle it bogs down and dies. Look for air leaking into the crankcase which leans the fuel mixture. Cleaning Your Troy-Bilt Weed Eater Carburetor Below is a short step-by-step process of cleaning your carburetor. Plugged Air Filter Causes a String Trimmer to Run Rough. After adjusting the H, L and LA screws I am getting it to idle smoothly without dying but … read more. Firstly, it could be due to a clogged carburetor. well my echo trimmer keeps on bogging down. One should be idle mix and the other should be high speed. Weed Eater Dies When It Gets Hot – 7 Common Causes>Weed Eater Dies When It Gets Hot – 7 Common Causes. Start the engine and let it warm up for 5 minutes. As the carburetor is clogged, the air and fuel are not mixed correctly, resulting in a bogging down effect. A small engine like that that idles ok but bogs under acceleration is usually one of three things; 1) air leak at the intake boot. pull and clean your spark plug with some carb cleaner and a wire brush. Some of the culprits are clogged air filter, fuel filters, and fuel lines. If your weed eater dies when it gets hot, here are 7 common causes and solutions you can try out. Why does my Weed Eater bog down when accelerating?. Anyway, I thought initially it was the carb. At each revolution, the compression should increase. Bog down on throttle increase is starving for fuel. Exhaust would have to be plugged. If it races when u spray a certain area thats the issue. You should get atomised fuel coming out the engine end, Also the amount of fuel should vary as you rotate the throttle control Purge valve should be downstream of the carb Fuel filter -> cab -> purge valve -> return line StarTech Lawn Pro Joined Feb 19, 2020 Threads 48 Messages 7,527. There are a couple of potential reasons why your weed eater is bogging down when accelerating. Maybe the pulse hole between the cylinder and the carburetor is blocked which would explain the no fuel problem. Check to see that your throttle cable is adjusted correctly and that the throttle valve is completely opened at WOT. It’s generally best to purchase a carburetor rebuild kit prior to starting. If I shut choke off, it will idle, but when I press accelerator, it dies. Echo HC150 Hedge Trimmer Bogging Down. The 150 series Echo Hedge Trimmers are famous for carburetor bog. PNC scoring normally affects the starting ability first as it lowers the starting compression below 100 psi. Besides having insufficient fuel, using old fuel can also cause the machine to bog down. How to fix a Husqvarna weed eater (no more bogging down. A loose spark plug wire or incorrect gap can also be responsible for a poorly running string trimmer that bogs down. I checked the plug, not dirty at all. If it revs you have a vacuum leak. Weed Eater Dies When I Give It Gas? (7 Possible Causes >Weed Eater Dies When I Give It Gas? (7 Possible Causes. Watch on. If you cannot see the exhaust, it is not being lubricated. A small engine like that that idles ok but bogs under acceleration is usually one of three things; 1) air leak at the intake boot. Carburetor: replaced including new gasket to insulator 4. Weed eaters are important in gardening and lawn maintenance. I just put a new into my STIHL wacker (FS 45). This could be the possible reason behind the weed eater stall after being given its throttle. Echo trimmer Echo brand; SRM-2100SB grass trimmer starts easily and idles fine but wont rev up. Just remove the fuel filter from the fuel tank, and try to clean it thoroughly. With me repairing over a couple hundred these cubes what you describing is a lean burn problem; and unless, you re-tune the carburetor you never get it to run right. 01 - Craftsman String Trimmer Spark Arrestor. Ensure you have fresh fuel and add 2 ounces of carb cleaner let sit overnight. Echo PB250LN will not run achieve wide open rpm acts as if bogging down, have cleaned muffler and port, changed carb and fuel lines, and spark plug. I took both carbs apart, cleaned them out real well and installed new gaskets in both. It starts fine, idles fine, and when I start to throttle slowly, its starts to throttle up slowly. To adjust the carburetor, start with both screws backed out 2 turns from the closed position. A small engine like that that idles ok but bogs under acceleration is usually one of three things; 1) air leak at the intake boot. Over time, the spark arrestor can become clogged with soot. Just bought a used MAC 1385L weedeater, it cranks fine, and runs for about 5 minutes, then bogs. Husqvarna 128LD Will Not Stay Running. There are a couple of potential reasons why your weed eater is bogging down when accelerating. The fuel filter does NOT have to be clogged just restricted to cause a steady lean out. I had the same trouble with my 2 cycle weed eater. On a two-stroke, shutting off after warm-up is usually one of 2 things: Either losing spark when the coil gets hot, or a plugged/defective fuel tank vent. If the trimmer runs strong and doesn’t bog down and run rough, tighten the fuel cap and see if you can replicate the issue to confirm the fuel tank vent is the problem. Besides having insufficient fuel, using old fuel can also cause the machine to bog down. Further steps will entail dis-assembly. Removed air cleaner and carb, sprayed everything I could see, put in back together, no change. To inspect the filter, first remove the cover. It was bogging down when I would give…. Use a flathead screwdriver to remove the air filter cover If there is any clog, clean it out with a combination of mild soap and water Wait for it to finish drying Reinstall the air filter cover. Heat the screen area till it gets red hot with a propane torch and use a brush to remove the deposits after it cools. to no acceleration on Mantis 2. When I first start it up it runs fine but after a few minutes of full throttle do i get the problem. Why does my Echo Weed Eater bogs down? It’s 110% the hidden fuel mixture. How To Start A Flooded Weed Eater?. When it comes to gas-powered weed eaters, the problem often lies with the quality and flow of fuel. Weedeater Only Runs with Choke On (Why + How to Fix). This could be the possible reason behind the weed eater stall after being given its throttle. When the clogging gets to be severe enough, it may allow a small amount of fuel through, but not enough for you to rev up. You may have to keep the throttle open a bit. Does it have 2 carb screws, or just one? :edit: I mean 2 seperate carb jet screws for acceleration and full throttle, separate from an idle jet . Usually that would cause problems after running a little while. Why does my Weed Eater bog down when accelerating? The most common causes of a weed eater dying when throttled are fuel issues, insufficient air intake, or problems with the exhaust. Both have been bogging down and will not rev up to full power. The most common causes of a weed eater dying when throttled are fuel issues, insufficient air intake, or problems with the exhaust. You should follow the path that the fuel travels. Throttling always makes it bog down and stop. It idles perfectly and it will go all the way to about 3/4 throttle and then it boggs down and wont put out any power. Tank ventrun unit until it begins to loose power then loosen the fuel cap. I have a Stihl FS 85 weedeater. 447K views 4 years ago You will learn how to properly adjust your carburetor, which is the main cause of your problem, when the engine BOGS Down when throttling up, engine. How To Easily Fix A Weedeater That Bogs Down In this easy to follow tutorial I show you how to repair a weedeater or any other grass trimmer that bogs down and wont throttle up. well my echo trimmer keeps on bogging down. Find the screw to adjust the idle speed. Since the engine turns off shortly after starting your weed eater, the idle speed may just be too slow. If I bring speed up slowly (very slowly) it tends to speed up but not to high enough rpms as it used to. The heat created in the process is typically fanned. to/3dd6uG0In this easy to follow tutorial I show you how to repair a weedeater or any other grass trimmer that bog. Look at the muffler where the exhaust comes out. When the weed eater starts but dies after throttling, the most likely explanation is that fuel flow is restricted. Turn the carb sideways and blow through it with your compressor. If the trimmer runs strong and doesnt bog down and run rough, tighten the fuel cap and see if you can replicate the issue to confirm the fuel tank vent is the problem. The filter can become clogged if there are too many impurities in the fuel. It could be that your fuel tank vent is not functioning. Once it gets to the halfway throttled point, it starts to bog down until it chokes itself out and stops running. Weed Eater bog down when accelerating?>Why does my Weed Eater bog down when accelerating?. After running at full power for about 10 minutes, the engine speed slowly decreases until it barely runs. Throttling always makes it bog down and stop. If your weed eater dies when it gets hot, here are 7 common causes and solutions you can try out. Solving the Problem of Weed Eater Bogs Down When Accelerating. When running at high speed, the engine would bogs down dies. Weed Eater Stalls When Given Throttle. Turn the carb sideways and blow through it with your compressor. Muffler: inspected and look clear. The most common causes of a weed eater dying when throttled are fuel issues, insufficient air intake, or problems with the exhaust. Why does my Weed Eater bog down when accelerating? The most common causes of a weed eater dying when throttled are fuel issues, insufficient air intake, or problems with the exhaust. Technician. Why does my Weed Eater bog down when accelerating? The most common causes of a weed eater dying when throttled are fuel issues, insufficient air intake, or problems with the exhaust. You will either see a plate held on with two screws under which is the screen or you might see a hex nut which you unscrew. We must assume the fuel/oil mix is correct. Echo PB250LN will not run achieve wide open rpm acts as if. If you have been using a less-optimal fuel, it’s worth checking your fuel filter. Both have been bogging down and will not rev up to full power. Weed Eater Dies When Giving Gas? Quick Steps To Troubleshoot. Locate the adjustment screws. This is usually behind the air filter, but if you have trouble locating it, consult your user manual. A weed eater is made of three main parts: A string line within a rotating head. Making it a pain in the butt to get all my trimming done. You should follow the path that the fuel travels to identify the issue. How To Easily Fix A Weedeater That Bogs Down. It was bogging down when I would give. We are missing the most important pieces of info; sound & smell. It idles perfectly and it will go all the way to about 3/4 throttle and then it boggs down and wont put out any power. I then have to wait till it cools down to restart. If your unit bogs out when you give it throttle your low speed circuit isnt getting enough fuel for the mid-range. How to fix a Husqvarna weed eater (no more bogging down) Creative Mechanic 11. There are a couple of potential reasons why your weed eater is bogging down when accelerating. Was the compression weak when it stopped ? Drop a bit of heavy oil onto the piston rings, then slowly crank the engine. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. Weed Eater Dies When It Gets Hot – 7 Common Causes. If your trimmer engine idles, but stalls on throttle, check the following parts: the gasket, primer bulb, fuel filter, air filter, fuel vent, fuel line, and carburetor. Possible Reasons Your Weed Eater Dies When the Choke is Off · Gummed Up Carburetor · Gas Cap Vent Blockage · Fuel Line or Fuel Filter Problems. If the engine picks back up, replace the tank vent. Oct 23, 2020 / Craftsman Weedwacker 4 cycle 30cc trimmer Bogging down. Dirty Spark Plug Causes a String Trimmer to Run Rough. I have a red max EBZ 7150 a few years old and when its running full throttle it bogs down and dies. If your unit bogs out when you give it throttle your low speed circuit isnt getting enough fuel for the mid-range. Weed eater stalls when given throttle. There are a couple of potential reasons why your weed eater is bogging down when accelerating. Then turn in the L screw until the RPMs start to drop, the back it off a little bit. The heat created in the process is typically fanned away into the atmosphere. But if I let it warm up for 3 min, it runs great. How To Fix A Weed Wacker, Grass Trimmer That Bogs Down And Wont Rev-up - Spark Arrester CleaningDoes your grass trimmer bog down and not rev up? Watch as I. If the spark arrestor is clogged, the engine may stall. It was bogging down when I would give it gas, I changed the fuel with good fresh gas/oil mix, changed fuel line assy with new grommet , lines and filter, installed new plug, and bought a new oem carb and put it on. This sticky fuel can clog up the carburetor and cause the engine to stall. A coil issue can easily be diagnosed by immediately checking for spark presence after the engine shuts down, as generally you will have to let it cool before it will resume sparking. I have been using TRuFuel 50:1 with no problems for months until now. if this cures the problem replace the filter. I just put a new carburetor into my STIHL weed wacker (FS 45). When a weed eater is used at full speed, the most typical reasons for it to fail are issues with the fuel, an inadequate amount of air intake, or issues with the exhaust. 8K subscribers Subscribe 237K views 4 years ago How to fix a Husqvarna weed eater with. throttle all the way in choke, and the engine accelerates a bit, but bogs down. Choke , prime the unit and attempt to restart the unit again. The hotter it gets, the smaller the wisps. Remove the filter inside the tank and test run the unit. The first thing to do is to test the current idle speed of the weed eater. There are a couple of potential reasons why your weed eater is bogging down when accelerating. I have a green machines weed wacker that, if you give it any throttle, will bog down really bad. How To Easily Fix A Weedeater That Bogs Down In this easy to follow tutorial I show you how to repair a weedeater or any other grass trimmer that bogs down and wont throttle up. pulled the spark plug and was black. Why does my Echo Weed Eater bogs down? Its 110% the hidden fuel mixture screw. As your trimmer ages, the air filter can become clogged, which will starve your engine of the air it requires. An engine powered by petrol, electricity, or a battery. A coil issue can easily be diagnosed by immediately checking for spark presence after the engine shuts down, as generally you will have to let it cool before it will resume sparking. Just remove the fuel filter from the fuel tank, and. What causes an echo srm225 trimmer to run but when you press. Now it will start and idle, but when I throttle up, its bogging down. Hedge Trimmer: Engine Will Idle But Dies At Full Throttle. Dirty Spark Plug Causes a String Trimmer to Run Rough. To unclog the spark arrestor, remove it and clean it with a wire brush. Why does my weed eater bog down when accelerating?. Remove the air cleaner cap and filter, checking for any obstructions in the way that could block air flow, starving the engine of oxygen. The cover is sometimes held on by a tab that you can simply pop open, but you may need a screwdriver. This is because such fuel moves unstably via the engine’s carburetor and prevents it. weed eater bog down when accelerating?>Why does my weed eater bog down when accelerating?. How To Fix A Weed Wacker, Grass Trimmer That Bogs Down And Wont Rev-up - Spark Arrester CleaningDoes your grass trimmer bog down and not rev up? Watch as I. When the weed eater starts but dies after throttling, the most likely explanation is that fuel flow is restricted. How to fix a Husqvarna weed eater (no more bogging down) Creative Mechanic 11. You should get atomised fuel coming out the engine end, Also the amount of fuel should vary as you rotate the throttle control. Bogs out. How To Fix A Weed Wacker, Grass Trimmer That Bogs Down And Wont Rev-up - Spark Arrester CleaningDoes your grass trimmer bog down and not rev up? Watch as I. If you have too much oil it will bog down, too little and you will burn it up. The high speed needle (even if not clogged) is probably going to need adjustment to avoid the bog and allow the engine to accelerate properly. Since you cant open the jet up as it is fixed the next question is Did you clean the carb using an ultrasonic cleaner? This can get the debris out of the circuits that you cant access yourself. stihl hs 45 hedge trimmer starts & idles, dies with throttle. I have a Stihl FS55 Weed Eater that last season I lost the idle screw on it so I decided to just put a new Zama carb on it. >stihl hs 45 hedge trimmer starts & idles, dies with throttle. If that is the case you can burn it off with a torch. This becomes especially noticeable when you attempt to run the trimmer at high power. Why does my Weed Eater bog down when accelerating? The most common causes of a weed eater dying when throttled are fuel issues, insufficient air intake, or problems with the exhaust. This could be the possible reason behind the weed eater stall after being given its throttle. If its still idling too fast, back the idle speed screw out until the head stops spinning. Replace the fuel tank vent if your trimmer starts to act up and run rough again after installing the fuel cap. I recently replaced fuel line and filter (Echo 90097 kit) and still, no better. How to fix a Husqvarna weed eater (no more bogging down) Creative Mechanic 11. A dirty or damaged spark plug can cause it to misfire causing the string trimmer to run rough. Ensure you have fresh fuel and add 2 ounces of carb cleaner let sit overnight. There are a couple of potential reasons why your weed eater is bogging down when accelerating. It is worth checking the carburetor for any clogs or leaks, and cleaning the. A clogged carburetor is most commonly caused by leaving fuel in the string trimmer for a long period of time. Echo Trimmer bogging down. If I turn it on its side seems to run a little fast …. if this fails remove the jets and clean with spray carb cleaner. I do not have experience repairing weedeaters but Id. If I dont let off of the throttle and go back to idle, it will die out. Bog down on throttle increase is starving for fuel. This could be the possible reason behind the weed eater stall after being given its throttle. When the weed eater starts but dies after throttling, the most likely explanation is that fuel flow is restricted. If I shut it down and let it cool off for about 5-10 minutes, it starts right up and will run fine for another 10 minutes or so until the problem repeats. How To Easily Fix A Weedeater That Bogs Down In this easy to follow tutorial I show you how to repair a weedeater or any other grass trimmer that bogs down and wont throttle up. Check all the seals and gasket mating areas as well. A squirt of starter fluid at the boot while running will tell you. The spark arrestor is a small screen that prevents the engine from emitting sparks. if this fails remove the jets and clean with. It worked fine the week before. The sure-fire way to do this is by checking the model number, which you can find with the owner’s manual. Besides having insufficient fuel, using old fuel can also cause the machine to bog down. The most common causes of a weed eater dying when throttled are fuel issues, insufficient air intake, or problems with the exhaust. The first thing to do is to test the current idle speed of the weed eater. When running at high speed, the engine would bogs down dies. Spark arrestor screen is not clogged 2. You might even check the gasket . It is best to replace these items when you disassemble, clean and reassemble the carb. You can sometimes track down an airleak by spraying carburetor cleaner on a suspect sealing/joint area and listening closely to see if the engine RPMs change (sucking carb cleaner fumes into carburetor will also do this, so be careful when working near the carburetor). If it runs well, or at least better with the choke partially on then you more than likely have an obstructed fuel passage. The ONLY adjustment (besides idle speed) on the carb (your unit) is the high speed adjustment. Reassemble and initiate normal starting procedure. Have replaced fuel filter, spark plugno help. ECHO SRM 210 weed eater bogs down. echo srm210 string trimmer bogging down. Dumped out old gas, went and bought fresh gas / oil mix. Apr 5, 2017 / Stihl FS55 bogging down #1 Good afternoon everyone, new here. A month ago, it started bogging down when I gave it any throttle.