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Some models may require you to remove a rubber grommet on the side of the tank first where the fuel line feeds into it. 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. 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. Husqvarna String trimmer starts then stalls. Product recommendations not personally owned are based on the author’s knowledge of the company, product, reliability, and reputation. Inside one side of the carburetor, there is a diaphragm--a small plastic piece with small flaps--which is what we will focus on during this part of the troubleshooting process. Fired it up this spring and it ran great for 4 minutes and then stopped. Fixing an Echo trimmer that starts but dies. Once the engine is running again, allow it to idle for about a minute. 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. Things to look for are tears and rips, or any indications of leaks. Copyright © 2020 eReplacementParts.com Inc. Engine Will Idle But Dies At Full Throttle. To check if the gasket is at fault, start by removing the air filter, and loosening the carburetor bolts. Then, start by turning the L screw clockwise to add more fuel and set the idle. If the weed eater starts up without issue and stays on when you rev the throttle, you have fixed the problem. If I release the throttle it will idle, but if I try to speed up again it dies. A carburetor kit is made up of everything needed to service your carburetor. Trimmer would die at full throttle. It may run a little rough at first, but it should start at these settings. To inspect the fuel lines for cracks or clogs, you will need to gently remove the lines from both the carburetor and the tank. This happens every time this hedge trimmer is cold. I've got a two stroke strimmer (new last summer). Just search for the make and model you need. You will also want to locate both idle screws on the carburetor. Common solutions for: Husqvarna String trimmer starts then stalls. plastic bag. When it comes to gas-powered weed eaters, the problem often lies with the quality and flow of fuel. A fouled or poorly adjusted carburetor can cause your hedge trimmer’s engine to idle, but die when power is increased. Also, inspect the … ... Husqvarna 128R trimmer on Yandex Market. As a rule, I strongly recommend using ethanol-free gas in your weed eater. Cracked or clogged fuel lines will deprive the carburetor and the engine of fuel, causing it to die when the trimmer reaches full power. Unscrew them to assess the condition of the metering diaphragm. Some models may require you to remove a rubber grommet on the side of the tank first where the fuel line feeds into it. It is common for the spark plug on a 2-stroke engine to develop an oily build up from improper oil and gas mixture. Click here for Paul’s author page. If your air filter is clogged, it will literally suffocate the engine when you rev the throttle. Details: Husqvarna bt 150 blower only 4 years old. Blame it on the heat! The repair and symptom guide will help you better identify the part needed to be replaced and how. 4. Refer to To disconnect and connect the throttle Refer to Servicing tools on page 11 . This is a relatively common symptom and our repair guide can help you fix it. Pull out the drive shaft housing. If you see anything unusual coming out, or hear a blockage, your best course of action would be to replace the line. I just took covers off and looked around again, blew some dirt out of places that would not likely make any difference (it was all pretty clean around the carb and throttle linkages). Bought last fall, used briefly, drained gas and put away for the winter. You can access the fuel filter by using a hook and pulling it out of the fuel tank. Same problem. always drain gas at the end of fall. Remember you can also find user manuals on the manufacturer’s website in many cases! In this way, the normal carburetor fuel supply will be restored. You will find the carburetor underneath the air filter, and once you have located it you can remove the air cleaner cap. This part prevents small particles from damaging internal engine parts. Also if I start it with the throttle full open it will run full speed for about 10 seconds then slow down. 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. Let’s get started with the troubleshooting process so that you can get back to your yard work. Make sure you clean the unit carefully after each job. They are pretty cheap. This element is located inside the tank on the intake hose. Page 20 … 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. Jump to Latest Follow Status Not open for further replies. It’s worth checking this and cleaning the filter (or replacing it since they are so inexpensive). Next, check for any adjustment screws that the carburetor may have. It ensures air and fuel work together to start a combustion engine. Examples provided of tested products are actual products owned, tested, and used regularly by the author. On the opposite side of the carburetor, there is another set of screws. Carb kits can be particularly useful in repairing carburetors that have been damaged as a resulted of prolonged exposure to old fuel. He knows exactly what the challenges are to nurturing a thriving yard in difficult soil. Over time, the spark arrestor can become clogged with soot. Once off, you should remove the damaged or clogged filter, and simply replace it with a new one, then close the cover. It’s ethanol-free, has a high octane rating, and has a much longer shelf life than a homemade fuel mix. The spark plug’s job is to ignite the air and fuel mixture in the combustion chamber under any condition. This video from The Repair Specialist is a great illustration of the function of the metering diaphragm: If you find the metering diaphragm is worn out--or even worn through entirely--it will need to be replaced. This is often a sign that the engine is struggling to get sufficient amounts of either fuel or air. This site is a participant in affiliate programs such as Amazon Associates and earns from qualifying purchases. Adjusting these settings to lean out the fuel flow will solve the problem. 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. Check the manual provided by your owner for more specific repair information related to your model. Note: this is a general repair guide. 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. However, there are plenty of carburetor cleaning options on the market. Just leave the hedge trimmer on idle for a 5 minutes until it warms up to clear. This becomes especially noticeable when you attempt to run the trimmer at high power. Receive money-saving advice and special discounts! to the point it would not stay running. Use Husqvarna air filter oil. My ECHO SRM-225 starts on cold setting but dies out soon after, sometimes one to three minutes, sometimes just a few seconds. Hi all, I have a Husqvarna 128LD string trimmer, I bought new about 5 years ago. But we’ve all had that moment of frustration just to realize the tank had nothing but fumes. 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. I’ve had great success with SeaFoam motor treatment (link to Amazon). Here is what is happening. 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. These diaphragms are easy to replace yourself.

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