Open both 1 turn CCW from lightly seated. If this becomes warped, it will no longer operate as expected. Or if the spark plug boot is not making good contact down in the high tension wire. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. You may as well try to clean the carb before you scrap it. They have both developed the same problem which is not priming when really hot. Troubleshoot hard starting on Stihl BG 55 blower. I get mine for $3.95 at walmart. Position it to point to the symbol that looks like a slanted line. The space is so tight once on there the handle does not leave room to unscrew plug. Indeed, the rush in this case may lead to the need to repair the entire piston group of the engine unit. If there is no spark, its likely to be faulty. Be sure to depress the throttle to rev the engine before it dies. For a better experience, please enable JavaScript in your browser before proceeding. Replace a damaged spark arrestor. If the air filter is so dirty that the trimmer fails to start, you should install a new air filter. :cool2: I was wondering if it would harm the engine or carberator setting if I totally removed the spark arrestor? 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. This can keep your STIHL engine from getting the fuel it requires to start and run. Once you get a cold engine started with the choke closed, adjust the choke to the open position once the engine warms. In this case, you may need to seek out a professional to perform a service. You'll find the right STIHL OUTFITTERS in the STIHL line. STIHL recommends consuming fuel within 30 days and no longer than 60 days when using a fuel stabilizer. The issue might potentially be with the tools muffler. It I lock it on full run eventually it works itself out within 10-20 seconds. Be careful not to lose the retaining ring securing the line to the filter. It is a 2 stage coil. Some of the fuels components may evaporate over time, leaving behind a thicker, stickier material. The gap should be 0.02 inches. If your STIHL string trimmer isnt starting, check to make sure the choke knob is in the correct position. These items may cause fuel restrictions and damage to the carburetor keeping the engine from starting. Place the filter back inside the fuel tank and reinstall the fuel cap. Insert the rope inside the pull start handle and tie a knot at the end. Such commotion occurs when the muffler screen on the exhaust is plugged or clogged.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[300,600],'powertoolsask_com-leader-1','ezslot_6',110,'0','0'])};__ez_fad_position('div-gpt-ad-powertoolsask_com-leader-1-0'); In that case, you need to clean the muffler screen on your BG 50 blower. Inspect parts for damage on a regular basis; be sure to turn off the trimmer and remove the spark plug when doing this to avoid accidental start ups. Sort by. I would certainly like to get it running again, so any suggestions for what to do next would certainly be appreciated. The saw only sees action in the spring, summer and fall. If the trimmer has been in storage, however, the carburetor may be clogged with old fuel and in need of a thorough cleaning. It's unusual but not impossible for the type of carburetor you have to just flood. The next step is to place the leaf blower down on the ground. Let the muffler cool. 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. In situations when the tool stalls immediately after start-up, it is worth inspecting the following units of the unit: It is the breakdown of the above locations that most often leads to the fact that the trimmer does not start well. Location. 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 am looking at it but only from eyeballing from the outside of the guard i without trying to get in to it. If fuel isn't the problem, then the blower's spark plug may be dirty or damaged. Plug wet every time. You can get yourself in a pickle if youre not fully aware. 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. SOLUTION: Replace a plugged fuel tank vent. This is because the air cannot properly circulate around the power system and the fuel will be prevented from moving around freely. Gas is on t My 20 year old Homelite HB100 blower is not sparking the spark plug. Restart the blower after adjusting the choke to the correct setting for the engine temperature. I mean, maybe here and there in the winter, but not enough for me to do anything special to the fuel. Push Mower vs Self Propelled: Which Is Better? This may be all it needs to give me a few more years. Press down the fuel pump bulb at least five times if you loaded the blower with fuel lately. This was the best hand held blower I have ever pulled the trigger on. Why doesnt the gas trimmer start? Guide it slowly back into the housing so that the starter rope can rewind properly. If you've never done it, it could be tricky. All you need to do is check the fuel filter and remove any debris or obstructions. 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. Spin the starter pulley clockwise until you hear a noise, and insert the new ropes end while holding the starter pulley. The fuel is fresh, premium, pure gas, no ethanol. You wont have to deal with the bad effects of ethanol as discussed in the next section. Fuel can also clog the carburetor if you allow the trimmer to stand for an extended period with a full gas tank. Remove the old filter from the fuel tank and install a new fuel filter. Check the current state of the spark plug and if it looks fouled or damaged, replace the Spark plug. SHOP FOR PARTS Troubleshooting Common Problems Leaf blower won't start Take your Stihl leaf blower far away from fuel gallon 3. First up, you can easily grab a cup of fuel and pour it in. Answer: If your Stihl Bg 86 is losing power, please check the air filter. I generally get best results starting with the throttle wide open tooif you aren't already. Remove the spark arrestor. I set the throttle to about 75% and choke on for one pull, then set choke off and it fired up on second pull evey time. 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. Your IP: Toro single stage snowblower won't start, new spark plug ( have spark), cleaned carb & fuel lines, fresh gas/ oil mix. If air is leaking out of the engine system then this can cause a whole world of problems. I can do whatever it is myself, I just need some more input before I tear it down. I also had to replace the coil. Therefore, if the trimmer does not start, it is worth draining the old fuel and use a freshly prepared fuel mixture. 1 lurkalot Member 298 Location: Essex UK It wont start or the engine wont run better until the fuel cap is loosened to allow air into the fuel tank. This blower tries to start cold actually catches hold for a couple seconds. Checked muffler etc. Eventually, the cord should pull easily. 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. As a result, the engine will not start at all. Replace a bad spark plug. If it won't get fire outside it won't get it inside. After all, no matter how strong a spark is given by a candle, there will simply not be anything to ignite in a completely dry chamber. A weed eater engine is a delicate piece of equipment that requires a good and constant air flow to keep operating. I installed the plug back and it tried to start but would not keep running. 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? Many 2-cycle oils include stabilizers including the engine oil mixes sold by STIHL. This filter is used to strain fuel before it enters the fuel pick-up tube. Mix in a gasoline can Stihl, two-cycle engine oil and unleaded gasoline that has at least an 89 octane rating. Replace the recoil starter when it is damaged. I have had customers bring their string trimmer to the repair shop because they cant get it started. https://www.facebook.com/ereplace/ https://twitter.com/ereplace https://www.pinterest.ca/ereplace/?eq=ereplacementparts\u0026etslf=5048 The STIHL engine may also be flooded and won't start. Replace the fuel if you find it dirty as well. There are four cycle engines and two cycle engines although the latter is much more common in residential equipment. Turn jets gently CW to lightly seat them. 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. You'll find Andrew behind the scenes of almost everything Edge Your Lawn produces. Any help would be appreciated. The blower fan is most likely damaged. If fact the primer appears to be draining and no amount of pumping will get them to prime. SOLUTION: Disconnect the spark plug boot. It is extremely not recommended to prepare the fuel mixture in large volumes, that is, for the future. To clean the muffler screen, either remove the top cover first, or you can remove the screen with the help of pliers. While the plug was out I cranked the blower several times. The Fix Lets see how it works or shouldnt work. Turn up the volume on the engine. Lawn Mowers, Trimmers, Chainsaws. It is a sort of insurance policy protecting the engine from engine wearing due to dirt. Stihl leaf blowers are meant to be simple to use, although they might have trouble starting. After 9 years fuel lines have been known to get hard and split causing air to be sucked into the fuel line. Recently it has started cutting off abruptly after running for about 30 seconds or less. Conduct timely, regular technical inspection of the main mechanical components of the device. It looks almost new. Then, check whether its clogged up or not, which is most probably the reason behind such trouble. Unclog it with a wire brush, thats how youll clean it. Replace Part number: 4241 120 0616. I prefer to replace it. Remove choke and pull until it starts. Required Part Leaf Blower Recoil Starter Pulley Enter model number to search for the required part specific to your product Need help finding your model number? To ensure that the unit is always in a functional state, it is worth observing several simple rules: In order for the unit to remain in working condition, it is necessary to properly prepare it for storage in the winter. Worth draining the old fuel and use a freshly prepared fuel mixture is more! System and the fuel line more years but would not keep running need to repair the entire group! 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