In the end, you should always correlate the cost of self-repair with the prices for servicing the unit in the workshop. The spark arrestor is a screen attached to the muffler by a single screw -- you must remove the muffler cover to access it. 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. 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. It sooner would be a fuel issue I understand you gave it some ether but I have been dissapointed with the ether made today it just don't have any kick and I have failed using that test. Took a carb off a runner, no help. I noticed when I was cranking it that small bits of gas were coming out of and wetting the end of the muffler. You may freely link to this site, and use it for non-commercial use subject to our terms of use. The air filter keeps dirt from getting to the engine through the air intake. I also had to replace the coil. Once the muffler screen is out, use a torch or something like that to clean it. When you pull the start cord on your trimmer, this triggers a reaction whereby the crankshaft begins to rotate causing a piston to create an intake port for the fuel. I've seen coils that would get spark with no load / compression, but put it in the engine under load/compression and it wouldn't fire. You should be able to unscrew it and clean it with a torch/lighter or just remove it all together. All you need is your model number and you can shop with confidence, knowing your replacement part will fit your machine! Your IP: Miller Lawn & Power Equipment is an authorized STIHL STIHL OUTFITTERS Dealer in Marion, OH. It won't run long enough for me to use it anymore. You may also notice that there are air vents that allow any hot air to escape. Lawn Mowers, Trimmers, Chainsaws. As a result, the engine will not start at all. Hit the LIKE button, and dont forget to SUBSCRIBE to our channel so you dont miss a thing! Consult a professional if you dont have the skills, or knowledge or are not in the condition to perform the repair safely. You know when I got this blower a month ago I was amazed at the quick starting 2nd pull starts etc. It doesn't even try to fire when I pull cord. The Fora platform includes forum software by XenForo. In the future I'll be careful to only use it once or twice max. The consent submitted will only be used for data processing originating from this website. 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. Squeeze the throttle trigger, positioned under the handle. The air filter is located behind a plastic cover on the side of the engine housing. I installed the plug back and it tried to start but would not keep running. Rebuild any damaged parts or install a new carburetor assembly. I bought if from an old gentleman who did not use it that much. I have replaced the spark plug last year. Adjust the choke lever, which is right under the fuel pump bulb. Its possible that the carburetor is blocked. Ensure the choke knob is on/closed to restrict airflow when starting a cold engine. When resorting to such actions, one should not leave the suction pipe completely without a filter. Leftover fuel in your leaf blower is one of the primary reasons a leaf blower won't start. Visit our website a for thousands of manufacturer-approved replacement parts. Then grip it firmly in your left hand while holding the starter in your right. #1 Here's what I've done so far: verified that the ignition module/coil is working; verified the start/stop switch is working; installed new plug gapped at .02"; installed new air cleaner; cleaned spark arrestor (it was pretty much pristine even after 9 years of use, thanks to all the operating time at WOT). Seen that happen several times. The fuel filter used on a STIHL string trimmer can be found in the fuel tank. Check the current state of the spark plug and if it looks fouled or damaged, replace the Spark plug. 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. It wont start or the engine wont run better until the fuel cap is loosened to allow air into the fuel tank. Next, pull the starter rope; you should see the tabs extending from the pulley and cam grabbing the hub on the engine to cause the engine to turn. The gap should be 0.02 inches. Mine clogged quickly on mine. $7.95 is a little steep. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. Place the slide control in the stop position. Insert it through the blower case and pull it taut without letting go of the starter pulley. The components of any carburetor are: Unscrew the candle. As we have discovered, it is important to have a stable flow of air and if there is a leak, this causes a significant interruption and will cause the weed eater to overheat. If it gets better you have a fuel restriction, start by replacing the fuel filter, if it gets worse lean out the high speed adjustment. The carburetor had to be rebuilt. The action you just performed triggered the security solution. All STIHL string trimmers require a gas-to-oil mix ratio of 50:1. The spark arrestor can get plugged with soot. We hope you now know all the problems that may occur with your Stihl Bg 86. Indeed, with long-term savings, the loss of the defining properties of a substance occurs. Replace the old blade with a new one when it has been removed. Also, its convenient to have fuel available on your shelf when you need it. In addition to this, you will need to check the gas cap. Check the spark arrestor & clean or replace it. Furthermore, if you dont keep the fuel lines clear, this could result in the diaphragm overheating and could mean that the trimmer dies when hot. You should be able to unscrew it and clean it with a torch/lighter or just remove it all together. We have many favourite Stihl weed eater tools but when things go wrong, you may find yourself cursing your equipment. We and our partners use cookies to Store and/or access information on a device. The leaf blower should start after a short pull on the starting handle. Simple and basic, do it yourself (DIY) tutorials to help you with your broken lawn and garden equipment. colour: as shown. The plug can also be fouled by deposits collecting in the engine due to a dirty air filter. If the carburetor does not function after being cleaned, you may need to rebuild it or replace it with a new carburetor. And also repair or replace the muffler with the help of a professional. If even in this case the trimmer does not start, it is worth evaluating the quality of the contact between the high-voltage wire and the candle. The good news is that, in the main, these issues will be simply to fix and can often be done without having to rush off to the repair shop. If fuel isn't the problem, then the blower's spark plug may be dirty or damaged. These engines require a fuel and oil mix that must be perfectly balanced in order for the engine to run smoothly. Gain access to the filter. 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 . Swing the filter cover (2) open and take it away. Up to this point I have taken the spark plug out and replaced it. . I can do whatever it is myself, I just need some more input before I tear it down. Wipe it thoroughly and then dry. Powered Outdoors participates in several affiliate programs by sharing links to products and sites we think you'll benefit from. An example of data being processed may be a unique identifier stored in a cookie. How to Start a Stihl BG 55 Blower. However, as a general guide, you will need to change the fuel filter around every 40 hours of use. 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 have had customers bring their string trimmer to the repair shop because they cant get it started. Push Mower vs Self Propelled: Which Is Better? Remove the spark arrestor. Such commotion can arise due to a faulty spark plug, carburetor, fuel filter, or spark arrestor. A STIHL string trimmer wont start due to a wrong choke setting, plugged air filter, plugged fuel filter, clogged fuel line, dirty carburetor, plugged fuel tank vent, plugged spark arrestor, bad spark plug, faulty starter recoil, wrong fuel mixture, or old gasoline. Clean thecarburetor by taking it apart and usingcarburetorcleaner toclean it. Always replaced a very dirty or damaged filter. Website operating problems contact Webmaster. How do I get into and remove it? Thanks for all the help. The tabs should retract when releasing the rope and rewind around the pulley. In this case, it is worth treating the threaded connection with gasoline. Step 2. This will avoid the development of corrosion on the surface of important components of the mechanism. As a result of this, the fuel supply will be interrupted and this will prevent the weed wacker from working. I agree. Doing this will allow any hot air to escape. I've always used the choke to start a cold engine, but I did not realize it could flood the engine so easily. Let us know how you cracked it. You have to unscrew the fan from the side of the blower. 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. Sometimes the high energy plug wire can short out if the shroud cuts into it. When the fuel filter becomes clogged with dirt, it will restrict the amount of fuel that is able to flow through the filter and into the fuel lines. This problem most often occurs during the operation of older generation trimmer models. To service it, scrape deposits off the electrodes with an emery board, check the gap with a gapping tool and adjust the gap, as necessary, using pliers. 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 . The gasoline tank of a Stihl Leaf blower might go dry. You need to replace the starter rope to fix this problem. . . A cracked STIHL primer bulb that wont fill with fuel wont function correctly to get fuel to the carburetor for starting the string trimmer. A clean bent wire works well to fish the filter and pull it out of the tank. Replace a spark plug that is very dark in color, has signs of wear, or is damaged. Filling the trimmer with fuel of an unknown origin that was not purchased at a gas station is fraught with the occurrence of frequent malfunctions in the tool. Having dried all the mechanisms, lubricate the movable elements. ). Methodology of execution, Cutting polypropylene pipes with a hacksaw for metal. If not, then it could result in the weed eater overheating. Conduct timely, regular technical inspection of the main mechanical components of the device. Continue with Recommended Cookies. Clean or replace the faulty element. Hold the throttle trigger lockout and throttle trigger down while placing the slide control in the start position to place it in the starting throttle position. Remove the spark arrestor screen cover, gaskets, and spark arrestor from the muffler. Purchases made through these links may provide a commission for us, at no extra cost to you. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. Would it even make a difference in power? I have a Stihl BR-420c blower that is about 5 years old with light use. Your email address will not be published. This can take anywhere between 10 and 20 pulls before it starts. Lets see how it works or shouldnt work. Replace the filter with a new one if it is very dirty or damaged. STIHL recommends using a 2-cycle oil like STIHL High Performance or STIHL HP Ultra. If even in this case the trimmer does not start, it is worth evaluating the quality of the contact between the high-voltage wire and the candle. As a result, engineering changes and improvements are made from time-to-time. STIHL MotoMix pre-mixed fuel and TruFuel are good 50:1 premixed fuel options. STIHL's lightest gasoline-powered handheld blower. Take a look at these-. Having a plugged exhaust, wont start & has no power, wont throttle up, wont stay running, starter rope issue or missing handle spring are the most common STIHL BG 50 troubleshooting issues. 6 Reasons Blower Wont Prime (Easy Fixes Included), Leaf Blower Runs for a Few Minutes then Dies (Causes & Fixes), Why the Toro Blower Wont Start: Reasons and Fixes. Stihl Bg 86 Won't Start. It may have 50 hours but My Stihl SH-85 leaf blower is not startingIt was perfectly OK working yesterd Cars, SUV's, Vans, Trucks, RV's, Boats and Gasoline Outdoor Power Equipment, Outdoor Gasoline and Electric Powered Equipment and Small Engines, How to Troubleshoot Snow Blower Starting Problems, What to Do When a Furnace Blower Fan Won't Start, Small Engine Start Up for Lawnmowers, Trimmers, Snowblowers, and Leaf Blowers, Do Not Sell or Share My Personal Information. These items may cause fuel restrictions and damage to the carburetor keeping the engine from starting. Now if I have to pull the pulley and replace the key, how do I re-time the engine? SOLUTION: Drain the fuel tank and fill it with the correct gas-to-oil mix. To resort to such actions should be to ensure ignition. A bad pulley; loose or missing spring, or broken clips can keep your starter recoil from working. View our Privacy Policy here. I have the latest on my BG85. If you find your fuel is dirty, you may need to drain the fuel tank, fill it with fresh fuel and replace the fuel filter. Slowly raise the starting grip until you can feel it engage. Question: Why is my Stihl Bg 86 losing power? Replace Part number: 4241 120 0616. SOLUTION: Replace a fuel line on your STIHL string trimmer when it is cracked, kinked, or clogged. Inspect the spark plug, carburetor, fuel filter, & spark arrestor. 85.214.20.145 I have a strong spark. Use ordinary fuel and two-cycle, air-cooled engine oil. I think this thing isnt producing any fire. A weed eater engine is a delicate piece of equipment that requires a good and constant air flow to keep operating. Replace a spring and restring the recoil starter. Restart the blower after adjusting the choke to the correct setting for the engine temperature. Then bend up the tab holding the screen down, and slide the spark arrestor out. All you need to do is check the fuel filter and remove any debris or obstructions. If you find any damage to the filter, change it. We hope you figured out what went wrong with your leaf blower. Spin the starter pulley clockwise until you hear a noise, and insert the new ropes end while holding the starter pulley. Unclog it with a wire brush, thats how youll clean it. Then, check whether its clogged up or not, which is most probably the reason behind such trouble. Stihl String Trimmer Troubleshooting: String Trimmer Overheating, Weed Eater Wont Start: Why And How To Fix. BGA 57. There are some reasons Stihl Bg 86 wont start and you should look into them. Of course, if there are things in the way, the fuel is unable to enter the carburetor as easily and this will undoubtedly cause problems. How to make a mower, Gasproof gas station proportions. SOLUTION: Use the following procedure to unflood your string trimmer so the engine gets the correct fuel-to-air ratio required to start and run. Insert the rope inside the pull start handle and tie a knot at the end. Sort by. Repair in this case often exceeds the cost of the device itself. Clean it using a wire brush and reinstall it. Questions of a Do It Yourself nature should be submitted to our "DoItYourself.com Community Forums". Now Just $129.99. However, since you can only adjust this with the spark plug installed, you must wear protective gear. It then will do nothing, but the fuel smell is strong. Checked muffler etc. Unscrew the fan housing from the side of the blower to check. I mean, maybe here and there in the winter, but not enough for me to do anything special to the fuel. Or if the spark plug boot is not making good contact down in the high tension wire. Exhaust is clean and not oily. Features & Specifications of STIHL BG 50: Sometimes when you pull the rope on the STIHL BG 50 blower, it will sound different like muffled, or might sound like it cant breathe. As a landscape builder, he helped establish two gardening companies. BG 50. However, with a serious approach to the problem, the malfunctions indicated in the material are quite easily eliminated by ones own hands. Especially if youre using a Stihl Bg 86. Most people just take them out. Also, the price varies, it depends on the battery. If the engine is good, then check if the blower fan is damaged. Is the spark arrestor in the muffler clogged? Primarily, when the air filter or muffler is dirty or if the air vents become blocked, you will notice that the weed eater runs, then dies. I still have had no luck in starting my BG85. It still will not start today. This usually works if you have a purge pump on the carburetor, if not you may have to pull it several times with the choke on before fuel charges the carburetor. The choke is used to restrict airflow when starting a cold engine. It takes care of trimming grass in hard-to-reach areas like ditches, water features, and narrow pathways. It's not ethanol free, but that's what I've got. Always run your leaf blower with a clean air filter. I get mine for $3.95 at walmart. Verify fuel - I find this harder on 2 cycle engines. When your Stihl weed eater won't start, this could be a problem with the diaphragm located in the fuel pump. Create a gas and oil mix in a fuel container. The reasons may be a faulty spark plug or carburetor. 20K views 2 years ago It can be extremely frustrating when you have a mess of leaves in your yard, but no matter how hard you pull on the starter rope, your leaf blower JUST WON'T START. BG 50. Once the rope comes out the other side, pull it through. Remove a clogged fuel line and remove the restriction. Also seen spark plugs do the same way..with a coil good, the spark plug won't fire under compression. It's also green colored. As a result, the engine won't start. JavaScript is disabled. Why doesnt the gas trimmer start? Or, buy a good spark tester. How did you test the coil? 5 Most Typical STIHL BG 86 Problems and Solutions, Most Common Echo PB 755 Problems & How to Fix Them, How To Fix Most Common STIHL BR 600 Problems, Common Problems With STIHL BR 450 & How To Fix Them. Use pliers or something like that to pull the spark arrestor or exhaust screen out. 2. You need the extra rich mixture to get the engine to fire off when it's cold. into position. Replace the string & make an alternative handle. Inspect & clean spark arrestor thoroughly. Let us know how you cracked it. Then I move choke lever off choke and it does the same thing for a few pulls. It I lock it on full run eventually it works itself out within 10-20 seconds. Remove the old filter from the fuel tank and install a new fuel filter. Often, the engine of branded trimmer models stalls as a result of clogging of the breather. Guide it slowly back into the housing so that the starter rope can rewind properly. The kit includes the following -. If the blower was running fine while in your posession . Some of the fuels components may evaporate over time, leaving behind a thicker, stickier material. To process the piston system with oils, you must first remove the spark plug. It can be easy to become flustered and assume that the issue is something drastic that needs to be addressed by a professional. This is an ethanol-free blend of oil and fuel that is ready to pour into your string trimmers fuel tank. Remove choke and pull until it starts. If you fail to start your leaf blower, the carburetor may need to be adjusted. I'm working on my blower now, so I will check for a spark. This can clog the fuel line and restrict the fuel flow your string trimmer requires to start. Follow all safety precautions in your STIHL operators manual. Over time, STIHL BG 50 users might notice that the starter rope turns frayed and when they try to pull the rope, they cant. These fuels contain up to 15% and 85% ethanol respectively. Having good air circulation is perhaps one of the most important parts of the engine process. In case of contamination of the unit, a vacuum forms here, which significantly complicates the supply of fuel. Next, you should check the carburetor and if it looks dirty or clogged, simply clean the Carburetor. This happen to me years ago with an older model I used to own. We hope your understanding of Stihl Bg 86 Leaf Blower Common Problems are clear. DoItYourself.com, founded in 1995, is the leading independent home improvement and repair website. I hate working on electrical as compared to mechanical woes. Coils can ground out going to the kill switch too. Then, use a torch to burn all the oil & build up carbon. To avoid this problem in the future, check the filters condition monthly. Required fields are marked *. 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. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Replace a damaged spark arrestor. I checked the start switch, pulled the plug, replaced gas and tried starting fluid, but no luck. If the recoil starter pulley is broken, replace it. BGA . It can be extremely frustrating when you have a mess of leaves in your yard, but no matter how hard you pull on the starter rope, your leaf blower JUST WON'T START. Plug wet every time. Keep at it until no more ejects from the spark plug hole. This is the same requirement for STIHL 2-cycle engines and STIHL 4-MIX engines. For example, if the fuel filters are dirty, this could result in improper air flow and an improper fuel supply. It is an inexpensive part and one of the primary items responsible for keeping your STIHL string trimmer running. Stihl Bg 86 Leaf Blower Has a Fuel Problem, 6. Question: Why is my Stihl Bg 86 not blowing hard? When this part is plugged and no longer works, your trimmer will begin to run sluggish and possibly die. Rings could be shot not building up enough compression. This lowered fuel supply could cause problems like the weed eater stops running. When I go for the trigger it revs but doesn't get going right away. It may not display this or other websites correctly. 2023 LawnMowerForum.com. Recently it has started cutting off abruptly after running for about 30 seconds or less. You can attempt to clean a mildly dirty spark plug with a wire brush and reuse it. Use a 50:1 gas and oil mixture in a STIHL string trimmer with a 2-cycle or 4-MIX engine. The latter does not need to be abundantly impregnated with fuel. Because of this, always use unleaded gasoline with a minimum octane rating of 89 (mid-grade) and maximum ethanol content of 10% (E10). We welcome your comments and suggestions. Replace Zama C1M-S261B Carburettor. You wont have to deal with the bad effects of ethanol as discussed in the next section. If it is broken, buy a new one. It is designed to keep dirt and debris out of the fuel system. Received 119 Upvotes on 109 Posts. Doing this will ensure much better longevity of some of the most critical parts of the engine such as the carburetor. If the compression feels good when you pull it slowly I would suggest 4 - 5 drops of fresh gas in the spark plug hole then quickly replace the plug and give it a spin, this will rule out fuel problems. SOLUTION: Remove the air filter cover and clean or replace the air filter. While a string trimmer that doesnt work wont put you in a dire situation, it does keep you from having a well-manicured lawn. It doesn't even try to fire when I pull cord. Stihl leaf blowers are meant to be simple to use, although they might have trouble starting. If so thats a bad idea. :wall The little bugger was running perfect. I rarely see equipment that will start easily cold, without choking or priming. Fill the fuel in the blower 2. It is extremely not recommended to prepare the fuel mixture in large volumes, that is, for the future. Open both 1 turn CCW from lightly seated. When the spark plug is fouled, it may not provide the spark needed to start. I had to start my Stihl blower cold several times this weekend. This process gives you the chance to notice when the engine uses the fuel in the cylinder. Hold the starter rope in a U shape and use a knife to cut the rope. What to do if the function block was serviced in accordance with the above recommendations, but the trimmer does not start, is there a spark? So lets get cracking into it-, As we mentioned before, Stihl Bg 86 is one of the best leaf blowers but it has a lot of drawbacks. Most Stihl trimmers run on an oil/gas mixture, and failure to add oil to the gas in the ratio specified on the instruction manual can cause the engine to seize. https://www.ereplacementparts.com/?utm_source=youtube.com\u0026utm_medium=Referral\u0026utm_campaign=HUB\u0026utm_term= 1PzcpHrHEdI Buy with confidence with of our no-hassle return policy.

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