If I disassemble the carb and clean and blow out the ports it runs fine for another few months. Why does my ATV only run with the choke on? turn the screw all the way in then out 1/1/2 turn for a rough setting. It ran a little while - then back to the same problem. If your chainsaw only runs with the choke on, it is likely an issue with your carburetor. Basically it can't draw enough fuel with bad Diaphragm. If the carburetor is plugged, the engine will be starved of fuel and will not run. Chainsaw will only run with choke. I have a different model Stihl, and the Zama carb is notorious for this. This pattern continues to repeat itself even after the saw is well warmed up. 000001072. Also it is now hard to start. Get shopping advice from experts, friends and the community! If the saw won't adjust, you have a carburetor problem most likely. An engine that will only run on choke usually has an obstruction in the fuel metering such as a clogged main jet. Once the fuel is contaminated, the bad gas can cause filters and carburetors to become clogged as unprotected rubber hoses and plastic parts actually begin to dissolve. Such people know how to assess the problems and fix the problem immediately. Posts: 172 Received 0 Votes on 0 Posts Chainsaw will only run with choke. Primer bulb is good. How long does it take to dehydrate onions in a dehydrator? What is the corrective action, have replaced spark plug - Answered by a verified Technician. I took the carb apart and cleaned it and put it back together. The other could be a clogged low speed and idle circuit. Engine Only Runs with Choke On or Pressing Primer. Report This by Manage My Life. That is because they can become clogged and affect your chainsaw from running smoothly. When the choke is turned off, the engine will die. I have installed a new plug, new premixed fuel, and tried adjusting the … cleaned it out and had a professional adjust the jets. When you try to mow on overgrown lawn, you end up clogging the air filter and shutting off air to the engine. Solution. Relevance. The carburetor — or carb for short — runs on a mix of fuel and air. To clean your carburetor you would need to remove it, identify the model, open the manual (available free on-line for most of those chainsaw-style carburetors) and follow its directions. However, if the engine is plugged, the choke will pull more fuel through the carburetor's idle circuit and allow it to run. Either fuel-supplying components are faulty or carburetor itself. Sep 21, 2017 • FAQ. Black smoke from exhaust. Dwight Coleman there are usually only a few possibilities if it only runs with the choke. Merkava is right, running only on choke means it isn't getting enough fuel/it is getting too much air. If the engine only runs with the choke full on it means you have a vacuum leak and the engine runs too lean with the choke off. These procedures help in improving your chainsaw performance. New fuel filter did not cure the problem. (make sure not to idle too high, e.g. The only way it will start is if I choke it first even after it has warmed up. Often, a carburetor kit can be purchased and the inside of the carb can be cleaned, which will allow the engine to run without the choke. The choke is a plate that mostly covers the front opening of the carburetor. However, if the engine is plugged, the choke will pull more fuel through the carburetor's idle circuit and allow it to run . Re-chocking (once until it kicks) gets it running again for another 20-30 seconds. It has a Walbro WT764-547 carb and kinda would run on idle for a bit. Answer Save. … The HoH Help Center. All that will, You might have a blockage in the valve. Chain Saw: Only Runs With The Choke On . Super 2, XL, XL-2 Family . Trimmer is a Stihl RX100 that looks to be in great condition. But then if you put full choke on again it would idle fine (fast idle on full choke). Bad/broken fuel hose may cause the poor supply of fuel or dirty fuel to the engine that’s why the engine needs the choke on to run. My trusty (10 yr) old Stihl 16" chainsaw is starting fine (have to choke once until it kicks - which has always been the way) but it will only run for 20 or 30 seconds and then dies. Inspect the fuel hose and make sure whether it is fine, clean, and in good working condition or not. With spring right around the corner, you may be itching to start up your. If your chainsaw only runs with the choke on, it is likely an issue with your carburetor. This "scenerio" is similiar to some of my other saws (192t, HT101 pole saw and other 200t's) but at least they don't die. Thread Tools Search this Thread #1 04-19-10, 05:12 PM S. strider380. Common Causes of Chainsaw Issues. I have a Stihl 010 AV chainsaw that will not run without the choke on. 1 decade ago. What are the symptoms of a bad carburetor? Member. If you need specific repair instructions related to your model, refer to the manual provided by the manufacturer. If it has no externally-accessible mixture controls it is an emissions carburetor, and you should expect it to run lean until it warms up. Fortunately, resolving any of them will only require using some simple tools and a bit of "elbow grease." One of the first symptoms commonly associated with a bad or failing carburetor is a reduced engine performance. I can get the saw started but as soon as I hit the throttle it dies out. They include inspection of spark plugs, filters, and carburetor adjustment. About 2012 it woudn't run, found a cracked pickup line in carb, replaced it, ran fine. Article Number. Favorite Answer . Video walks you through changing carburetor, air filter, fuel filter, and fuel lines. We were unable to add your email to our mailing list. Getting Started and Common Tasks for Creating Posts. Join Date: Jun 2007. Are you supposed to run a lawn mower wide open? Homelite Electric Chainsaws . Put fresh non-ethanol gas in it, now the choke must be on to keep it running. What's the difference between Koolaburra by UGG and UGG? November 14th, 2011. chainsaw is a 42cc 2 cycle with 18 in. If your chainsaw only runs with the choke on, it is likely an issue with your carburetor. bar model 358.360380. If there is nothing you can do, seek help from a professional. Primer bulb is good. Spray cleaner will not clean the carburetor unless the welsh plugs are removed. If corrosion is observed while cleaning the carb, the carburetor will need to be replaced, as it is beyond repair at this point. Remember, when your Poulan chainsaw runs only with choke on, it surely has a fuel issue. Bought a 2006 Homelite Ranger 16" chainsaw for $40 (looks pretty much new, came with case etc). If the carburetor is plugged, the engine will be starved of fuel and will not run. Then, when you turn the choke off, it becomes much too lean and will not run. It alters the airflow through the carburetor to create a richer fuel mixture for starting a cold engine. If fuel hose … Chainsaw has little use on it like new but has sat awhile. Homelite Chainsaw Posts By Saw Family & General Repair Discussions. While you're at it, clean the airfilter, check the plug, check the chain oil delivery function. Andrew Walters - Huntsvile AL. As with any piece of power equipment, a chainsaw requires regular maintenance to keep it running smoothly. Copyright © 2021 eReplacementParts.com Inc. Both the manual choke system and the manual primer system engines may experience this similar symptom of running only when the fuel mixture is enriched. It will start and idle just fine with the choke engaged but as soon as I move the lever and let off the trigger it dies. Why does my motorcycle run better with the choke on? How long does a flooded engine take to clear? It had some lag in acceleration. I have a Husqvarna 55 rancher that I melted the ring on. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Sparkplugs are a litmus test to the fuel economy of your chainsaw. I changed all the gaskets in the carb. If the carburetor is clogged, it may only work with the choke engaged, which is not a good way to be running your engine. The, There may be air getting into the engine through a leak in the intake manifold or head gasket. Reduced engine performance. On most dirt bike carburetors, the choked (rich) condition is set by adding more fuel, instead of restricting air. Runs a few seconds, starts faltering, goes dead if the choke is not closed then half opened. So, fuel hose isn’t out of this circle. Park the vehicle and shut off the engine. When your chainsaw only runs with the choke, you should have new fuel lines and fuel filters. Homelite Serial Numbers and Dates. Another symptom commonly associated with a problematic carburetor is black smoke coming from the exhaust. An engine that requires the choking ( partial or full ) after initial engine warm up is an indication that the engine fuel air mixture system is out of adjustment. How to Prevent Your Chainsaw from Bogging Down. Then play with it until it runs fine in idle, without the choke. November 14th, 2011. chainsaw is a 42cc 2 cycle with 18 in. What is the function of choke coil or ballast? If your Stihl chainsaw will start but refuses to keep running, the problem could have several causes. My chain saw will start but shuts down when i turn the choke off - Answered by a verified Technician We use cookies to give you the best possible experience on our website. Chainsaw > Stihl 200t runs on choke - dies off choke ? Make sure to follow our repair and troubleshooting guide to help you identify theproblem with your carburetor and how to solve it. I looked at buying a trimmer today. What cars have the most expensive catalytic converters? 5 Answers. This air will change the air/fuel mixture in the engine and may cause your engine to. If the carburetor is plugged, the engine will be starved of fuel and will not run. Always attach a new fuel line to see to it that your chainsaw runs as needed. However, the machine only runs on choke. Click to remove this tagging. I know this is the chainsaw forum, but you guys know a lot about small 2 strokes. Why does my lawn mower shut off while mowing? Report This by Manage My Life. Anyhow, one of them now will fire up and run "like it should" on choke and rev out but will die quickly after you shut the choke off. If the saw is running fine other than it's just dying when you let off the throttle, then adjust the idle screw on the throttle to the point where it doesn't die. If your motor requires the, 3 Answers. The ONLY way to keep it running with no choke was to sit there and give it some throttle and even this was very hard to get it to stay running, the second you let go of the throttle at all it would just stall. If your chainsaw only runs with the choke on, it is likely an issue with your carburetor. I backed the low screw out and it helped with the lag. XL only runs with choke on. Chainsaw - Sears, will run only when the choke is on? Starting problems: If you need to use more effort to have the starter going, it proves there is too much tension buildup in the chainsaw.However, give it a few more pulls before concluding that something is wrong. However, if the engine is plugged, the choke will pull more fuel through the carburetor’s idle circuit and allow it to run. bar model 358.360380. Problem. Before today it would run, idle, and start perfectly even after hrs of hard use. Correcting stalling measures are generally referred to as tune-ups. I've replaced fuel filter, fuel lines & spark plug. Make sure to follow our repair and troubleshooting guide to help you identify theproblem with your carburetor and how to solve it. Accordingly, is it bad to run an engine with the choke on? The problem may be the crankshaft or the piston, and a professional will be able to assess the problem for accurate repairs. I have a Husqvarna chain saw model 350 that will not keep running. If your chainsaw only runs with the choke on, it is likely an issue with your carburetor. It will not damage the engine at all. So you are looking for either a fuel restriction or an air leak. Beside above, do you have to choke engine to keep running? Why would the engine only run while the choke is on or with repeated manual priming? Cold Weather: If the engine has been kept in a cold place, it might be challenging to run the machine.. 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