The spark arrestor is a tiny screen that stops sparks from being produced by the engine. STIHL's lightest gasoline-powered handheld blower. If a pull cord is not pulling out fully, it won't be able to turn the engine enough to start it up. I had to start my Stihl blower cold several times this weekend. In such situations, you have to independently determine the cause of the malfunction. Also, check the spark arrestor on the exhaust and clean it thoroughly, if it looks clogged. Cloudflare Ray ID: 7b9dd1364b029b55 However, this airflow could be interrupted for a variety of reasons. This is because gas can begin to degrade after this time. It is designed to keep dirt and debris out of the fuel system. At this point, if you open the choke and pull again, the engine should turn over. I checked the start switch, pulled the plug, replaced gas and tried starting fluid, but no luck. Press down the fuel pump bulb at least five times if you loaded the blower with fuel lately. To install the new rope, remove the top casing mounting screws and take the top cover off. Clean away loose dirt from around the filter. With the carb assembled, if it doesn't pick up fuel, it may be because the screen filter in the carb body is clogged, a fuel line is cracked, or the filter is plugged up. 1. Some of the problems that occur with a weed eater that wont start when hot are very simple to fix. Another alternative that can be used when you have experienced a buildup of varnish is Sea Foam Motor Treatment. I took the carb off and went thru it and took the exhaust off and cleaned it up good still does the same thing. I think your situation is unusual and perhaps had a build up of gas in the crankcase and just started without the choke. Additionally, they could be located in any of the connecting valves leading to the carburetor. Never add straight gas to a STIHL string trimmer. Save my name, email, and website in this browser for the next time I comment. First thing I did was removed the spark arrested screen. If it is planned to store the gas trimmer in the offseason not in the house, it is recommended to tightly wrap the engine of the unit with oiled rags. Location. It bogs down and I flirt with the choke on/off and run trigger back and forth a few times to get it to full throttle. Did you ground the plug and pull the engine over to check for spark plug firing outside the engine? into position. Position it to point to the symbol that looks like a slanted line. If your Stihl leaf blower stops working after beginning, try restarting it using the appropriate start-up process. RENTAL ONE/ R1 SUPPLY is an authorized STIHL STIHL OUTFITTERS Dealer in GRANDBURY, TX. As a result, the engine won't start. Use a 50:1 gas and oil mixture in a STIHL string trimmer with a 2-cycle or 4-MIX engine. . Step 2. STIHL MotoMix pre-mixed fuel and TruFuel are good 50:1 premixed fuel options. The spark plug is rated for about 100 hours of use, and when the time is close for replacement, it begins to spark weakly, or it won't spark at all. As a result of this, other parts of the engine are then forced to work much harder than they should so that the balance can be maintained. FYI, it will not even fire after I hit it with a shot of ether (I know this is not good practice on a 2-cycle engine); that certainly suggests that it is an electrical and not a carb issue. If you've used the correct procedure to start your Stihl trimmer and it does not start, the problem is likely related to either the spark, the fuel or the air circulation in the combustion chamber. Won't Start at All A leaf blower that won't start at all may require fuel. A clogged spark plug and the cold engine can be the reason why its happening. Having good air circulation is perhaps one of the most important parts of the engine process. $7.95 is a little steep. Save my name, email, and website in this browser for the next time I comment. The BG 50 is the lightest gasoline-powered handheld model in the STIHL blower lineup to deliver superior performance. Such commotion can arise due to a faulty spark plug, carburetor, fuel filter, or spark arrestor. I have the latest on my BG85. The proportions in which these components are connected are indicated by the manufacturers in the trimmer instruction manual. Another problem is Stihl Bg 86 will start but stop after some time. I was blowing leaves tonight and it just stopped like it ran out of gas. Check the leaf blower, if needed, make carburetor adjustments. Learn how to properly fix or repair your own outdoor power equipment if it won't start, bogs out, won't rev up, chain or blade is dull and doesn't cut good, needs sharpened, or simply just runs poorly. Manage Settings Doing this will allow any hot air to escape. :cool2: A forum community dedicated to lawn care and landscaping professionals and enthusiasts. BGA 200. The spark arrestor can get plugged with soot. Gas starts pouring out the exhaust. Fix this by using one of the methods above to remove excess fuel and start the chainsaw. Plug wet every time. If you pull the plug after trying to start it and it's wet, and you know you have spark, then a flywheel key check should be done. You can use a wire brush to clean up the screen if needed. When I got it I started really blowing hard with it. Once the piston reaches its peak point, this causes the spark plug to ignite the fuel, thus forcing the piston back down to repeat the process. The engine should sputter after two or three pulls. We hope you figured out what went wrong with your leaf blower. Simple and basic, do it yourself (DIY) tutorials to help you with your broken lawn and garden equipment. Then you need to clean the air filter, partially disassemble, blow and rinse the engine of the unit. Always had problems before. Remove the choke once the engine has warmed so it continues to run. I always have to use the choke to start most of my equipment, when it's cold and has not been started for more then an hour or so. SOLUTION: Locate the fuel filter inside the fuel tank and replace the plugged filter. Took a carb off a runner, no help. Replace the fuel if you find it dirty as well. Stihl Bg 86 Won't Start. Is the spark arrestor in the muffler clogged? If the engine won't fire, and you smell gasoline, the carburetor is probably flooded. If cleaning the carburetor does not work, the carburetor should be rebuilt or replaced entirely. I just run 91 octane (same I put in my truck). If not, we will have to move onto the next step. In this case, it is worth treating the threaded connection with gasoline. This is the same requirement for STIHL 2-cycle engines and STIHL 4-MIX engines. It's not ethanol free, but that's what I've got. When the spark plug is fouled, it may not provide the spark needed to start. Start a Flooded STIHL String Trimmer Option 1: Start a Flooded STIHL String Trimmer Option 2: STIHL String Trimmers Use This Type of Gas and Oil Fuel Mix, This is the Kind of Gas Westinghouse Generators Use. Remove the rope from the starter pulley and tie a knot at the new starter ropes end. Never operate it without an air filter, even if it is just for a short period so you can finish a task. This website is using a security service to protect itself from online attacks. It started 3rd pull when I started using it today. If you still experience fuel-related starting problems after replacing the fuel, continue troubleshooting fuel-related problems like a plugged fuel filter, clogged fuel line, dirty carburetor, or bad fuel tank vent. ). Before you drain and clean the carburetor, though, which can be a painstaking job, check the gas cap. Drain the fuel. The action you just performed triggered the security solution. Keep your foot on the base plate 6. (If you are continuing to work on the trimmer, detach the spark plug wire. Clean or replace the faulty element. Thanks. 5. Make sure the electrode gap is correct and the spark plug wire is securely in place. SOLUTION: You can attempt to replace the spring and restring the recoil. Remove the plug and check its condition. Use a spark plug tester to see if the spark plug is faulty. This mix provides a sufficient level of lubrication for the engine. If the blower was running fine while in your posession . Clean the old candle if there is soot on its surface. The trimmer manual calls for 50:1 but for some reason it runs more "freer" on the 40:1. Mine clogged quickly on mine. Answer: If your Stihl Bg 86 is losing power, please check the air filter. You may as well try to clean the carb before you scrap it. If the carburetor does not function after being cleaned, you may need to rebuild it or replace it with a new carburetor. SOLUTION: Drain the fuel tank and fill it with the correct gas-to-oil mix. Be careful not to lose the retaining ring securing the line to the filter. Guide it slowly back into the housing so that the starter rope can rewind properly. The reasons may be a faulty spark plug or carburetor. Nov 19, 2006. In the absence of a spark (in the presence of a reliable connection between these elements), most likely, the problem is caused by a breakdown of the ignition unit. Use a fuel stabilizer. The main task of this component is to equalize the pressure in the fuel tank. Unthread the top cover mounting bolts and take the cover off. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. I guess I could change plugs but interested if any of you have this problem. Or, buy a good spark tester. The spark arrestor is a small screen installed on the muffler to prevent hot materials from shooting out of the trimmer causing burns or a potential fire. I cant get a plug wrench to turn when I get it hooked up. I have it Have a blower that won't start, has spark and new gas. 75 129 If cleaning the carburetor does not work, the carburetor should be rebuilt or replaced entirely. For example, if the fuel filters are dirty, this could result in improper air flow and an improper fuel supply. JavaScript is disabled. BG 65. Roy, you are close. I have been using new fuel with the correct 50:1 mix, replaced the spark plug and air filter, and checked the muffler screen and fuel pickup for blockage. All STIHL string trimmers require a gas-to-oil mix ratio of 50:1. Lets find out what to do if the trimmer does not start. Open both 1 turn CCW from lightly seated. The engine will die if you dont make this adjustment. Most people just take them out. When the air filter isnt cleaned or replaced regularly, it may become so plugged with dirt that sufficient air isnt able to pass through the filter. Understanding how your weed eaters engine works is a great way to be able to solve problems when they arise. If it's not starting or has no power then there's a trick to fix Then you need to move the piston to the extreme position, after which pour a small amount of oil into the spark plug hole and scroll the crankshaft. This includes removing the spark plug wire before performing repairs. When he's not helping readers find all the information they need, he's in his backyard working on his lawn and garden landscaping. Very Powerful Stihl Blower and Stihl Articulating Swivel Hedge Trimmer - $325 (Houston) Stihl Blower BR6OO - $300 Stihl HL 94K Articulating Swivel Hedge Trimmer - $325 EACH First come first serve.Text - self propelled lawnmower lawn mower blower echo honda troy bilt shindaiwa stihl gas edger trimmer grass landscape landscaping garage sale . STIHL recommends consuming fuel within 30 days and no longer than 60 days when using a fuel stabilizer. Add a 2-cycle premium oil that is ISO-L-EGD and JASO M345 FD certified. It was made in 2007. But as soon you put your finger on the full throttle, the blower will start bogging, and you will witness a lack of power or completely no power too. I also had to replace the coil. The carburetor had to be rebuilt. I installed the plug back and it tried to start but would not keep running. 2. One might experience a situation where the blower wont start or is hard to start, and the user might also notice no power while having this issue. This can clog the fuel line and restrict the fuel flow your string trimmer requires to start. Furthermore, you will need to replace the fuel filter from time to time. Once you get a cold engine started with the choke closed, adjust the choke to the open position once the engine warms. The STIHL engine may also be flooded and wont start. Question: Why is my Stihl Bg 86 not blowing hard? What Is Wrong If My Push Mower Won't Continue to Run After I've Started it? What to do if the used fuel mixture is in perfect order, but the gas trimmer still does not start? You have to unscrew the fan from the side of the blower. Slowly raise the starting grip until you can feel it engage. Right across the state line in SC,. There are four cycle engines and two cycle engines although the latter is much more common in residential equipment. Also, the price varies, it depends on the battery. Always run your leaf blower with a clean air filter. I prefer to replace it. BGA 45. In this case, the first step is to check whether there is enough fuel in the tank, and also to evaluate the quality of the fuel mixture. Stihl leaf blowers are meant to be simple to use, although they might have trouble starting. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. Lets say you do not start the trimmer. The pulley nut is holding the pulley to the crankshaft tight enough for the starter cord to crank the engine. Turn the choke knob to the closed position to keep dirt from falling into the carburetor throat. Restart the blower after adjusting the choke to the correct setting for the engine temperature. I have a Sthil FS250 weed wacker, it starts good and idles good but when I give it gas it bogs down. The only thing that seems to work is to let it sit for several hours or even the next day. The reasons for the failure of the mechanism may lie in the excessive wetting of the candle channel. Check the current state of the spark plug and if it looks fouled or damaged, replace the Spark plug. Continue to pull 2 to 3 more times and it should start. In this situation, you will have to turn to the services of masters who will reinstall the site. While you dont need to obtain a degree in engineering or mechanics, it can be helpful to get a basic knowledge. It was cleaned but I left it out ,no help. https://www.facebook.com/ereplace/ https://twitter.com/ereplace https://www.pinterest.ca/ereplace/?eq=ereplacementparts\u0026etslf=5048 The issue is solved by dismantling the anti-spark mesh and cleaning it. It takes care of trimming grass in hard-to-reach areas like ditches, water features, and narrow pathways. When this part is plugged and no longer works, your trimmer will begin to run sluggish and possibly die. Once the rope comes out the other side, pull it through. Click to reveal . Repair in this case often exceeds the cost of the device itself. Because of this, always use unleaded gasoline with a minimum octane rating of 89 (mid-grade) and maximum ethanol content of 10% (E10). It could also be that it has a check valve in the throat of the carb that is leaking air. If air is leaking out of the engine system then this can cause a whole world of problems. This may be all it needs to give me a few more years. All you need is your model number and you can shop with confidence, knowing your replacement part will fit your machine! Sometimes, a little adjustment on the carburetor also fixes such issues, so check and adjust the carburetor if necessary. Trimmers require a gas-to-oil mix to use, although they might have trouble starting whole of., although they might have trouble starting and website in this browser the. Same thing reason why its happening to lose the retaining ring securing line... Thing that seems to work on the 40:1 may need to replace the fuel tank and replace spring! 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