Turning it clockwise will increase fuel flow, and turning it counterclockwise will reduce fuel flow. Garden Tool Expert When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. The carburetor might need: A clean-up if it's clogged. var ry=Math.floor(Math.random()*myimages2.length)
A carb cleaner spray is an excellent tool for eliminating sticky deposits from your jets and reviving your carburetor. Turning the knob will either tighten or loosen the chain, depending on the direction the user turns the knob. Using 10x magnifying classes I discovered a tiny piece of fiber partially clogging the high speed jet in the carb. keep cutting with precision and efficiency. Confirm for water and debris in your fuel tank. Maintenance is the key to avoiding all that. Vapor lock occurs when the fuel vapor pressure builds up considerably in the fuel tank and isnt allowed to escape from the tank vents. Start the chainsaw for a few seconds to make sure the carburetor is functioning correctly.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-large-leaderboard-2','ezslot_10',158,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-large-leaderboard-2-0'); To unclog a chainsaw carburetor, youll need to thoroughly clean the carburetor and replace the air filter. The solution is easy and you can do it within a few minutes. If the spark arrestor is clogged, the chainsaw may run stall or run rough. Hello, and thanks for visiting my site! Top 11 Best Chainsaw Sharpener Tested for Sharpening 2023, How do Chainsaw Chaps Work? Although Richard does focus on other home improvement tools, his focus remains on cutting fallen trees or maintaining his backyard via chainsaw tools. After checking and cleaning the filters, see if the carburetor orientation is proper. Finally, the ignition system might need to be adjusted or repaired, and for this, you should contact a professional for assistance. It is recommended to replace the fuel filter every year to ensure optimal performance and avoid any possible issues. A well-maintained chain-saw seldom stalls. Where are these located and on what carbs? Being in the cutting services for more than 10 years, I know a thing or two about chainsaw. On mybackyardlife.com, I share tips on everything from grilling/smoking meat with my Big Green Egg to relaxing in the pool with my family. This will keep your chain in place for the next steps. Burnt plugs could mean the fuel combustion is too high or high ethanol concentration.To cure this, replace the sooty plug with a new one to prevent misfiring when cutting firewood.Ensure you adjust the carburetor to reduce the amount of gas used. ry=1
Check the fuel tank for the correct fuel and oil mixture, filling it up if necessary. myimages2[1]="../../../images/top-banner/behindtheforum.jpg"
To check if theres a vapor lock, unscrew the tanks cap and put it back on again. Run the saw in idle and make sure the idle speed is consistent, and then rev it up and listen for any unexpected changes in engine noise. To remove it you need to depress a small tab and slide the fuel line off. To adjust the tension on the chain, the user simply turns a knob located near the drive sprocket. Stihl MS 180C running problems, bogging down, fuel starvation?? Proceed with adjusting the carburetor adjustment screws to fix a chainsaw that wont start. After cleaning the air filter and spark arrestor, you should fill the tank, start the saw and let it warm up for a few minutes before adjusting the carburetor. Follow these simple steps to become a master fuel mixologist: You can now correctly mix the gasoline and oil needed for your chainsaw, so lets move on to other issues that can arise and cause a bogged-down chainsaw. If any part of that ratio is off (as previously mentioned), your chainsaw will experience a lag in performance. This article thus covers all causes and solutions to why does my chainsaw bogs down when I give it gas problem below: In a chainsaw both fuel starvation or termination of the connection between carburetor and engine can lead to a bog down. var imagelinks2=new Array()
). Turn your chainsaws bar to ensure even wear and tear. 1. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-leader-4','ezslot_20',165,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-leader-4-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-leader-4','ezslot_21',165,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-leader-4-0_1');.leader-4-multi-165{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:250px;padding:0;text-align:center!important}Adjusting the carburetor on a Craftsman chainsaw is a relatively simple process, but there are several steps youll need to follow. It could even bog down when given gas. As a result, the engine runs at too high or too low RPMs. This helps identify the compression. If your Stihl chain saw purrs like a cheetah when it's idling but stalls when you actually try to do some work with it, it could indicate the carburetor isn't adjusted properly. After a little looking, the two nuts that hold the back of the carb and filter housing were loose, I tightened them up and it ran like a top. When you depress the trigger, a vent on the carburetor opens, allowing more gas to reach the mixing chamber. When the high-speed screw on the carburetor is open too far, an excess of fuel enters the combustion chamber and not all of it ignites. Secondly, its about time we take a look at why your chainsaw suddenly stops working.The carburetor is like the vein in engines.Once it is clogged, the free flow of air and fuel will be blocked and the engine will be starved of fuel.To quell this issue, wash away the diets using the carburetor cleaner.In some scenarios, washing away or cleaning the carburetor may not be effective, hence, you should consider buying a new carburetor or repairing it.A clogged fuel tank can also cause the chainsaw to stop working.In such cases, endeavor to drain the old file from the chainsaw SNF ensure that the fuel tank is devoid of fuel. Jun 16, 2006. Cleaning your chainsaws air filter can lead to an improvement in performance and really should be done as part of your routine chainsaw maintenance schedule. . I have ran many 2 stroke motor cycles and atv's and feel as though its a carb problem. Knowing how to mix fuel properly is the first step to ensuring that your chainsaw will stay up and running for years to come. More so, the chainsaw might bog and refuse to run when you give it gas. If the spark plug is physically damaged, replace it. After cleaning, attachit backto the gasoline tank. From falling trees to slicing timber, the chainsaw is a necessity - especially if you are in the lumber industry. All STIHL gasoline-powered engines can be used with up to a 10% (E10) blend of ethanol in the gasoline/engine oil mix. This blog is written by a group of Garden Tool enthusiasts. I have replaced the spark plug (properly gapped), rebuilt the carb, replaced the fuel line and the fuel filter, cleaned out the chain brake and the clutch and cleaned the fuel tank air pressure stabilizing valve. After the overhaul of the piston assembly I used this saw to cut up three rather large downed trees, and some other work. New Husqvarna 550XP had to be reprogrammed. If the fuel you are using is too old or is diluted, your chainsaw will not work correctly. Login with username, password and session length, Model 6020-20hp Manual Thomas bandsaw,TC40A 4wd 40 hp New Holland tractor, 450 Norse Winch, Heatmor 400 OWB,YCC 1978-79. Tips from a Professional, Chainsaw Starts but Wont Idle. The most common causes of a Stihl saw stalling out or stopping include clogged air filter, fouled spark plug, stale gasoline, low compression in the cylinder, insufficient fuel reaching the carburetor, blocked fuel lines, incorrect gap between the spark plug electrodes, a worn or broken drive belt, and inadequate lubrication of the saw chain. A Detailed Guide, What Size Chainsaw Do I Need in 2023? Lastly, you should clean the air filter and replace it if necessary. Cleaning it by immersing it in a soap water solution is preferable. You should use mid-grade unleaded gasoline with a minimum octane rating of 89 and a premium two-cycle oil. The L screw controls how much fuel enters the carburetor at low speed, whereas the H screw controls how much gasoline flows into the carb at high speed. A rich mixture occurs when you have too much gasoline with the amount of oil in your fuel mixture, resulting in a poorly operating chainsaw. File every other cutting tooth with smooth, even, pushing strokes, keeping the round file at a 90-degree (right angle) to the rollers. Clear all dirt and debris from the saw body, chain, and bar. Stihl carburetors have three adjustment screws. Following are the must-performed maintenance to prevent unwanted bog down. Will start, sound fine, and work for a couple of minutes, until it gets warm. Chainsaw starts but dies when I give it gas. A Stihl chainsaw can bog down for a variety of reasons. Allow the cleaner to sit for five to 10 minutes and then wipe away with a cloth. Correct mixing of fuel ingredients. :bang: I guess that all depends on your oppinion of what "compressed air" is or isn't Internal check valves? Remedy this by adjusting the high-speed screw. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. Stalling is a symptom of a complication in the chain-saw. myimages[4]="../../../images/top-banner/ez50-banner.jpg"
By properly troubleshooting and addressing any potential causes, you can prevent stalling or restarting problems with your Stihl saw. Next, check the spark plug to make sure it is clean and properly connected. Check cooling fins on the cylinder and clean if needed. If this is the case, the only alternative is to replace the spark plug. random_imglink2()
Consider cleaning your carburetor and air/fuel filters if the problem persists. Another possible cause of a Stihl chainsaw bogging down is a broken or worn chain. Lock the chain brake by pushing the handle forward. On the first day the crew used it, it was bogging down. For the spark plug, use a delicate brush, a wire, or a plug spray-on to clean off the thick carbon. I took it back to the dealer and he said he adjusted something and handed back saying it would work fine. Updated: 00/04/25
The most common causes of a chainsaw bogging down include: Incorrect fuel mixture Dirty carburetor Clogged air filter Dirty fuel filter or fuel lines A combustion system depends on a proper mix of gas, oil, and air.
If the spark plug is cracked or damaged, you will need to replace it. Set the idle screw to the point just before the chain starts spinning and adjust the low-speed midway between the the two points at which the engine starts to die. This may be one of the least anticipated causes of the problem, but it occurs in several cases. document.write('')
We may earn a small commission from affiliate links and paid advertisements. Then, remove the air filter and fuel filter. They are Sthil chains. To unclog the spark arrestor, remove it and clean it with a wire brush. function random_imglink2(){
Using compressed air, blow out the inside of the carburetor and around the gasket. Kilikoba Nashoba 858 subscribers 46K views 7 years ago This video is about likely causes of a Stihl chainsaw engine. It should be the first thing to check and clean. Before you adjust the high-speed screw on the carburetor -- which the manufacturer discourages -- it's important to clean the air filter and the spark arrestor. It idles fine but after you rev it up it looses power. JavaScript is disabled. Classifieds - Engine/Transmission/Transfer Case, BJ42 | FJ43 | BJ44 | FJ45 | FJ45LV | HJ47, North American Clubhouses - Central Region, CA.AB- Rocky Mountain Land Cruiser Association, CO/WY- Horsetooth 4 Wheelers Cruiser Club, TX- Lone Star Land Cruisers - Austin Chapter, TX- The White Trash of the Elwood Chapter, CA.BC- Okanagan-Similkameen Land Cruisers, NV- Battle Born Cruisers of Northern Nevada, Vendors: Accessories - Electronics - Recovery, sthil pics pictures by naturalite - Photobucket, http://s820.photobucket.com/albums/zz130/naturalite/sthil pics/. Then there's the problem of wood binding. (3 Common Causes). In order to properly access the carburetor and get at its internal components, youll then need to disassemble the carburetor. You can follow these simple steps to remove and clean your chainsaws air filter: You should note that if your air filter continues to look dirty after cleaning and drying, it is time to fully replace the air filter with a new unit. The muffler looks easy enough to remove but I want to check out the carb. Remove the Cutting Bar - This is probably one of the easiest steps in taking your chainsaw apart because there are only two bolts that need to be loosened before removing the bar completely. Begin by draining the fuel tank and draining the existing fuel from the carburetor. How to Adjust the Carburetor on an Eager Beaver Chainsaw. If the spark arrestor is clogged, the chainsaw may run stall or run rough. And these issues can be solved if the problem is identified. Clogging usually occurs due to long working hours. This jet is usually responsible for controlling the fuel/air mixture. If the spark plug looks good, check the fuel mix. The ignition system includes the spark plugs, ignition coil, and exhaust muffler. Anobstruction in any of these components may disrupt the fuel flow to the engine, leading to the engine bogging down while idling. Cleaning a carburetor on a chainsaw without removing it can be done with a few simple steps. It may not display this or other websites correctly. Dirty Spark Plug Causes a String Trimmer to Run Rough. myimages2[2]="../../../images/top-banner/behindtheforum.jpg"
Replace it if the quality has deteriorated. A daily, weekly, and monthly check-up and cleaning must be performed for optimal performance. You are using an out of date browser. Clean it with a wire brush. Make sure they are closed at a distance and neither touching the engine and not too far from it. Additionally, inspect the air vents on the engine to make sure they are not blocked by leaves or debris.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-banner-1','ezslot_4',157,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-banner-1-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-banner-1','ezslot_5',157,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-banner-1-0_1');.banner-1-multi-157{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:250px;padding:0;text-align:center!important}. The one that is often damaged by compressed air is the one inside the high speed nozzle. The majority of these steps are listed above in the daily maintenance list, but one is of top priority: Chainsaws require maintenance to stay at the top of their game. his personal experience and loves to share their nitty gritty details with his audience. Its an essential step in properly maintaining your chainsaw to check and adjust the chain tension. Furthermore, its possible that the carburetor is not getting the right amount of fuel, so its important to check the fuel lines and adjust the carburetor accordingly. This handy guide will cover the common problems that cause bog down and how you can keep it from happening in the future. Correct some carbs can be damaged by compressed air. If binding/catching occurs, or if the motor does not return to an idle state, your chainsaw needs to make a visit to a service provider before being used again.