If you have been using a less-optimal fuel, it’s worth checking your fuel … A new gasket will be required after an inspection, as gaskets are only intended to be used once, and will not create an effective seal the second time. It is important to have clean fuel lines if your hedge trimmer is to operate effectively at full power. Let’s get started with the troubleshooting process so that you can get back to your yard work. One reason why one of these trimmers may die at full throttle is that too much oil is in the gas, which causes poor combustion. I recently replaced fuel line and filter (Echo 90097 kit) and still, no better. It is such a prolific nuisance that there are multiple sprays and chemical control... 5 Tips for Creating Beautiful, Low-Maintenance Flower Beds. If this doesn’t remedy your problem, be sure to check out the other side of the carburetor, which we will cover next. This is a relatively common symptom and our repair guide can help you fix it. ... Husqvarna 128R trimmer on Yandex Market. Product recommendations not personally owned are based on the author’s knowledge of the company, product, reliability, and reputation. However, there are plenty of carburetor cleaning options on the market. Next, check for any adjustment screws that the carburetor may have. Husqvarna's new battery-powered chainsaws, T540i XP® and 540i XP® deliver power on par with a professional 40cc petrol chainsaws, as well as unparalleled convenience, precision and durability. Copyright © 2020 eReplacementParts.com Inc. Engine Will Idle But Dies At Full Throttle. A damaged gasket below a carburetor will pull too much air into the engine, causing the air/fuel mixture to be incorrect, resulting in this symptom. always drain gas at the end of fall. It is also one of the most frustrating parts of a small engine and a big reason that I’ve been seriously considering the benefits of moving to electric yard tools. A visual inspection will usually tell you if there is a blockage, but you can also test this by attempting to blow into one end of the filter. Sometimes the adjustment screws are improperly adjusted and therefore the engine is not getting enough air. Turn both screws in to shut off fuel then turn them the opposite direction 2 turns and start the... A fouled or poorly adjusted carburetor can cause your hedge trimmer’s engine to idle, but die when power is increased. At this point you will want to look for any obstructions in the way that could block air flow, and ultimately starve the engine of oxygen. I've been having an issue when I throttle with the saw running pretty sluggish and not wanting to throttle like it should be. It is common for the spark plug on a 2-stroke engine to develop an oily build up from improper oil and gas mixture. If I leave the choke closed it will run at full throttle, but very lean, so I am pretty sure it is a fuel problem. Why does my weed eater die when giving it gas? The important thing to remember is to make sure the carb isn’t clogged before proceeding into the next, more technical steps. You should follow the path that the fuel travels to identify the issue. Video: Trimmer Does Not Accelerate At Full Throttle. hey, I have a fairly new husqvarna, just a 240, but i take good care of her and always keep chains sharp. The concern is with the gaskets. This will prevent rust and issues with buildup. In addition to wiping the trimmer, a good rule of thumb is to check each of these parts at the end of the season: Checking these parts at the end of the season ensures you can jump right into lawncare come springtime! We tend to focus so much on the fuel and air coming in that we forget the possibility that the problem may be with the air getting out. To test for a clog, simply blow through the lines, observing any blockages. Once the engine is running again, allow it to idle for about a minute. He takes a practical approach to yard improvement and enjoys putting best practices and “golden rules of lawn care” to the test. Note that if your weed eater isn’t starting at all, that could be a different set of issues so be sure to read Gas Weed Eater Won’t Start: Causes and Steps to Troubleshoot. We were unable to add your email to our mailing list. Ethanol can really mess up a small engine. Commercial pre-mixed fuel also has the correct levels of fuel stabilizers and assures a precise gas-to-oil ratio for optimal small engine performance. En … The air filter is located on top of your hedge trimmer’s carburetor and allows clean-flowing air into the engine, while eliminating debris. When the fuel has passed through the fuel filter, it enters the carburetor where it’s mixed with air. And if you do mix your own, make sure your two-stroke oil hasn’t gone bad. It ensures air and fuel work together to start a combustion engine. it has about 10 hours of run time. It will idle just fine, nice and smooth, but when you give it gas it dies out....you can play with the gas a little...example would be to give it slow gas and let it rev up slow, but it eventually dies out. If the tank has plenty of fuel, be sure the primer bulb is filling properly before you start the engine. Adjusting these settings to lean out the fuel flow will solve the problem. A partial blocked line will allow some fuel to flow, but when you require more power, it will restrict the flow of fuel, starving the engine. To check the plug for damage/corrosion, first remove the wire and connecting harness from the spark plug. If your weed eater coughs and sputters then dies, there is a big possibility that you have run out of fuel. Note: this is a general repair guide. Here is what is happening. The fuel line is connected to the carburettor, which can be found near the throttle at the rear of your chainsaw. Let’s look at these areas of your carburetor: These are the most common culprits of a carburetor when a weed eater starts but stalls when throttling. This interferes with the supply of gasoline. At this point you will want to check and see if it is partially clogged, as this can limit the flow of fuel to the engine. Also, inspect the … If I set the carburetor high speed jet rich it will run continuously, but if I lean it out to bring the engine up to full power it quits, just like it ran out of gas it will only run for about 5 - 10 sec. Just search for the make and model you need. It’s also possible that the type or mixture of fuel you are using has caused an issue. Fixing an Echo trimmer that starts but dies. Back to my last post, I would rather clean the screen and replace the plug every year or two than replace the entire weed trimmer or chain saw. Receive money-saving advice and special discounts! 01 - Spark Arrestor. To see whether this is the case, check the actual fuel in the tank (and compare it to the reading on the gauge for accuracy while you’re at it). Unscrew them to assess the condition of the metering diaphragm. Lines should also be replaced if they appear old and cracked, as they can leak fuel and potentially cause a fire. Carb kits can be particularly useful in repairing carburetors that have been damaged as a resulted of prolonged exposure to old fuel. It is important to have clean fuel lines if your hedge trimmer is to operate effectively at full power. A carburetor is a component in gasoline engines. Next, you will want to check the condition of the gasket. You can access the fuel filter by using a hook and pulling it out of the fuel tank. Next, check for any adjustment screws that the carburetor may have. Fired it up this spring and it ran great for 4 minutes and then stopped. A fuel filter can get clogged with impurities to a point that it allows a small amount of fuel through (enough for starting and even idling) but won’t let it through at a rate sufficient to rev up. I prime it, start it with choke and let it idle, idles fine, hit the gas past 1/3 throttle it dies like it's fuel starved. Weed eater stalls when given throttle. It works at a time with the gas tank, combustion chamber, throttle, and spark plug. Last year it started running poorly, symptoms being 1) stalls at idle 2) bogs down at WOT under load (thick weeds) 3) idles and runs better at 1/2 choke even when warm. If the weed eater starts up without issue and stays on when you rev the throttle, you have fixed the problem. It’s generally best to purchase a carburetor rebuild kit prior to starting. Trimmer: Engine Will Idle But Dies At Full Throttle. I ran across this YouTube video on clogged exhaust problems last fall when a friend and I were working on his weed eater and couldn’t find the issue. 4. Wire brush, reinstall. Page 24 Fuel system Lift off the lock preventing unintentional full throttle (A). Hi, I have a Husqvarna 223L trimmer that will idle, but dies when I try to make it go faster. Sometimes we forget to do this in the midst of working. Pull out the drive shaft housing. Also if I start it with the throttle full open it will run full speed for about 10 seconds then slow down. 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. Click Here to see the latest deals (link To Amazon). If you see anything unusual coming out, or hear a blockage, your best course of action would be to replace the line. If you see anything unusual coming out, or hear a blockage, your best course of action would be to replace the line. Cracked or clogged fuel lines will deprive the carburetor and the engine of fuel, causing it to die when the trimmer reaches full power. Carburetor Metering Diaphragm - 'HOW IT WORKS' - 2-Stroke Carburetor, link to How to Keep Crabgrass Out of Flower Beds, link to 5 Tips for Creating Beautiful, Low-Maintenance Flower Beds, Gas Weed Eater Won’t Start: Causes and Steps to Troubleshoot, using ethanol-free gas in your weed eater, Ethanol can really mess up a small engine, much longer shelf life than a homemade fuel mix, make sure your two-stroke oil hasn’t gone bad, the benefits of moving to electric yard tools. Put in a new plug. Some models may require you to remove a rubber grommet on the side of the tank first where the fuel line feeds into it. Remove the catch (B) for the twistable handle and its spring (C). Most manufacturers allow for up to 10% ethanol but it’s not worth the risk. When you have the engine running at its best, the problem will be solved (note: this does require some experience and may take a few times to get it right). Adjusting these settings to lean out the fuel flow will solve the problem. A fouled or poorly adjusted carburetor can cause your hedge trimmer’s engine to idle, but die when power is increased. My Chainsaw Runs Then Stalls. Thriving Yard is an affiliate for companies including Amazon Associates and earn a commission on qualifying purchases. When a weed eater starts okay but dies when throttled, it often indicates that there is restricted fuel flow. If your grass trimmer only runs in choke, there are a few solutions that may fix the problem and let … The repair and symptom guide will help you better identify the part needed to be replaced and how. If this is the case, you may need to clean out a clogged or gummed up carburetor or replace some of the smaller parts by purchasing a carb kit. Separate the engine from the cowling that holds drive shaft, and there the coil will be. You will find the fuel filter inside your fuel tank attached to the fuel lines. Next, remove the spark plug and check its condition. Over time, the spark arrestor can become clogged with soot. The cover is sometimes held on by a tab that you can simply pop open, but you may need a screwdriver to remove some attaching screws. First, make sure you have enough gas in the tank. Once you are done, reassemble the carburetor and test your weed eater. One should be marked L (low) and one marked H (high). Although it’s a fairly simple mechanism, there are a number of things that can go wrong with a carburetor. Here are the most common reasons your Husqvarna chainsaw engine starts, then stops after a few seconds - plus, the parts & instructions to fix the problem yourself. He knows exactly what the challenges are to nurturing a thriving yard in difficult soil. You will find the carburetor underneath the air filter, and once you have located it you can remove the air cleaner cap. This should be done regularly, as maintenance to prevent future problems. This is a relatively common symptom and our repair guide can help you fix it. I have been using TRuFuel 50:1 with no problems for months until now.I checked the plug, not dirty at all. Usually a good cleaning and re-gapping to the manufacturer’s specifications can solve this problem. To fix the problem, just loosen the valve. Now, the obvious issue that you need to check before we get technical is whether or not your carburetor is clogged. Jump to Latest Follow Status Not open for further replies. The spark arrestor is a small screen that prevents the engine from emitting sparks. The air filter is clean and afaik there is no fuel filter to check. I know, I know… it seems ridiculous. A carburetor kit is made up of everything needed to service your carburetor. Check the air filter to ensure it is not plugged with sawdust or any other material. I have a husqvarna 128LD weed eater that has about 50 hrs on it, it runs fine at idle but won't run at full power. Here is what I did so far. Then, start by turning the L screw clockwise to add more fuel and set the idle. You can use a damp towel to get any excess grass or debris off. If the filter is clogged, it will need to be replaced, and this should allow your trimmer to run properly at full power. As your trimmer ages, the air filter can become clogged, which will starve your engine of the air it requires. Be careful doing so, as the plugs can be fragile. Thriving Yard is a privately owned website. Husqvarna String trimmer starts then stalls. Re: Husqvarna 460 dies if throttle is opened Today I took some time with the 460 Rancher. Maintaining the weed eater will ensure it lasts for years to come and won’t break down when you need it most—or in the middle of working. The most common causes of a weed eater dying when throttled are fuel issues, insufficient air intake, or problems with the exhaust. Disconnect the throttle cable from the carburetor. If the flaps of the diaphragm are bent or worn out, you can replace these easily. Let’s deal with the obvious first and get it out of the way. Hedge Trimmer: Engine Will Idle But Dies At Full Throttle. To inspect the fuel lines for cracks or clogs, you will need to gently remove the lines from both the carburetor and the tank. Just leave the hedge trimmer on idle for a 5 minutes until it warms up to clear. Check the manual provided by your owner for more specific repair information related to your model. To inspect the filter, first remove the cover. Husqvarna bt 150 bogs down and stalls after about 10 MINS. Remove the throttle lever (D). Amazon has put together some great Home Holiday Guide Deals - save money and get your holiday shopping done! Took the carb out and cleaned it, same with the air filter and exhaust port. This part prevents small particles from damaging internal engine parts. Trimmer would die at full throttle. This is often a sign that the engine is struggling to get sufficient amounts of either fuel or air. In this way, the normal carburetor fuel supply will be restored. I’ve had great success with SeaFoam motor treatment (link to Amazon). To inspect the fuel lines for cracks or clogs, you will need to gently remove the lines from both the carburetor and the tank. It’s ethanol-free, has a high octane rating, and has a much longer shelf life than a homemade fuel mix. Cracked or clogged fuel lines will deprive the carburetor and the engine of fuel, causing it to die when the trimmer reaches full power. Sometimes a weed eater will start, and even idle just fine, but when you give it gas, it dies. I've got a two stroke strimmer (new last summer). Started right up again, and would idle fine, but stop dead after 5 or 10 seconds at full speed. Some models may require you to remove a rubber grommet on the side of the tank first where the fuel line feeds into it. If you want to see this visually, Home Garage has an excellent walk-through video on YouTube that takes you through a lot of what we are going to cover: Taking apart a carburetor on a weed eater can feel a little intimidating but it’s actually really simple; you will only need a screwdriver. This part helps regulate engine speed and should be the consistency of a cotton T-shirt. This happens every time this hedge trimmer is cold. The spark plug’s job is to ignite the air and fuel mixture in the combustion chamber under any condition. Let the air filter dry fully. When it comes to gas-powered weed eaters, the problem often lies with the quality and flow of fuel. Hi all, I have a Husqvarna 128LD string trimmer, I bought new about 5 years ago. If you have been using a less-optimal fuel, it’s worth checking your fuel filter. to the point it would not stay running. of running. A faulty spark plug may not allow your hedge trimmer to run properly at full power. To test for a clog, simply blow through the lines, observing any blockages. This element is located inside the tank on the intake hose. I've tried changing the fuel for carefully measured fresh mix.
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