Why does my lawn mower shut off while mowing? 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. Trimmer is a Stihl RX100 that looks to be in great condition. XL only runs with choke on. We were unable to add your email to our mailing list. Click to remove this tagging. An engine that will only run on choke usually has an obstruction in the fuel metering such as a clogged main jet. Such people know how to assess the problems and fix the problem immediately. Andrew Walters - Huntsvile AL. Dwight Coleman there are usually only a few possibilities if it only runs with the choke. Black smoke from exhaust. 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. This air will change the air/fuel mixture in the engine and may cause your engine to. Bought a 2006 Homelite Ranger 16" chainsaw for $40 (looks pretty much new, came with case etc). A sooty plug is an indication of a rich fuel mixture resulting in frequent misfiring. I backed the low screw out and it helped with the lag. These procedures help in improving your chainsaw performance. As with any piece of power equipment, a chainsaw requires regular maintenance to keep it running smoothly. Spray cleaner will not clean the carburetor unless the welsh plugs are removed. Get more answers from the people in your networks . What cars have the most expensive catalytic converters? Getting Started on HoH. However, if the engine is plugged, the choke will pull more fuel through the carburetor's idle circuit and allow it to run. What are the symptoms of a bad carburetor? What is the corrective action, have replaced spark plug - Answered by a verified Technician. Details. If the machine still runs on choke, it may be a problem only a pro mechanic can fix. Chain Saw: Only Runs With The Choke On . Thread Tools Search this Thread #1 04-19-10, 05:12 PM S. strider380. 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. If the carburetor is plugged, the engine will be starved of fuel and will not run. Relevance. Then play with it until it runs fine in idle, without the choke. (make sure not to idle too high, e.g. Loss of Air Causing the Mower to Stall The loss of air flow to the engine caused by too tall or too thick grass or a dirty air filter is often the reason a mower engine stalls. The mix burns in the engine cylinder and produces power. So, fuel hose isn’t out of this circle. Are you supposed to run a lawn mower wide open? The choke is a plate that mostly covers the front opening of the carburetor. Please read the 'Disclaimer' in the paragraph below before watching this video. Release the stopping arm and the throttle lever so that they both snap back into place. turn the screw all the way in then out 1/1/2 turn for a rough setting. 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. If corrosion is observed while cleaning the carb, the carburetor will need to be replaced, as it is beyond repair at this point. It had some lag in acceleration. One of the first symptoms commonly associated with a bad or failing carburetor is a reduced engine performance. Get shopping advice from experts, friends and the community! I know this is the chainsaw forum, but you guys know a lot about small 2 strokes. If the saw won't adjust, you have a carburetor problem most likely. If your motor requires the, 3 Answers. 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. Homelite Serial Numbers and Dates. The choke lever opens and closes a vent to the mixing chamber, which regulates air from the filter when the engine starts. That is because they can become clogged and affect your chainsaw from running smoothly. We use cookies to give you the best possible experience on our website. Share it! Member. Re-chocking (once until it kicks) gets it running again for another 20-30 seconds. If your chainsaw only runs with the choke on, it is likely an issue with your carburetor. Sep 21, 2017 • FAQ. Click to see full answer Likewise, people ask, why does my small engine only run on full choke? It has a Walbro WT764-547 carb and kinda would run on idle for a bit. However, if the engine is plugged, the choke will pull more fuel through the carburetor's idle circuit and allow it to run. All that will, You might have a blockage in the valve. Chainsaw has little use on it like new but has sat awhile. USA Link GX160 Carb Here http://amzn.to/1moixVuCanadian Link for Carburetor https://amzn.to/2IkUaEBToday we are Working on the Honda WT30 Dewatering pump. 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. Those are essentially the same thing. It will just run full speed right after it starts and once I can get it to settle I have to throttle it to keep it running. If your chainsaw only runs with the choke on, it is likely an issue with your carburetor. 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 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. What is the function of choke coil or ballast? How to Prevent Your Chainsaw from Bogging Down. Thread Starter. Some times a back fire into the carburetor will blow a pressed-in BB out of a drilled passage way. Favorite Answer . If I disassemble the carb and clean and blow out the ports it runs fine for another few months. Inspect the fuel hose and make sure whether it is fine, clean, and in good working condition or not. Super 2, XL, XL-2 Family . bar model 358.360380. My poulan pro 260 only runs with the choke pull out half way. Also it is now hard to start. Join Date: Jun 2007. How long does a flooded engine take to clear? … I took the carb apart and cleaned it and put it back together. Receive money-saving advice and special discounts! Location: Ludlow, MA. Another symptom commonly associated with a problematic carburetor is black smoke coming from the exhaust. Step Four. How long does it take to dehydrate onions in a dehydrator? Engine Only Runs with Choke On or Pressing Primer. Let it set 6-8 years, in 70 degree controlled temp room. Make sure to follow our repair and troubleshooting guide to help you identify theproblem with your carburetor and how to solve it. Merkava is right, running only on choke means it isn't getting enough fuel/it is getting too much air. 1 decade ago. Park the vehicle and shut off the engine. But then if you put full choke on again it would idle fine (fast idle on full choke). Reduced engine performance. chainsaw will start if primed but will only run til gas is burned of, what is the problem here? I have a Stihl 010 AV chainsaw that will not run without the choke on. Homelite Electric Chainsaws . If the carburetor is plugged, the engine will be starved of fuel and will not run. Basically it can't draw enough fuel with bad Diaphragm. Share it! It has a Walbro WT764-547 carb and kinda would run on idle for a bit. When you try to mow on overgrown lawn, you end up clogging the air filter and shutting off air to the engine. Why does my Honda lawn mower only run on choke? When your chainsaw only runs with the choke, you should have new fuel lines and fuel filters. Correcting stalling measures are generally referred to as tune-ups. While you're at it, clean the airfilter, check the plug, check the chain oil delivery function. One cause could be an air leak on the carb, head gasket, crankshaft seal. It will not damage the engine at all. Primer bulb is good. Time after time. Why does my ATV only run with the choke on? I've replaced fuel filter, fuel lines & spark plug. When the choke is on, the vent is closed, blocking air from reaching the chamber. But then if you put full choke on again it would idle fine (fast idle on full choke). The carburetor — or carb for short — runs on a mix of fuel and air. What's the difference between Koolaburra by UGG and UGG? Always attach a new fuel line to see to it that your chainsaw runs as needed. Before today it would run, idle, and start perfectly even after hrs of hard use. So you are looking for either a fuel restriction or an air leak. Put fresh non-ethanol gas in it, now the choke must be on to keep it running. I have a different model Stihl, and the Zama carb is notorious for this. The problem may be the crankshaft or the piston, and a professional will be able to assess the problem for accurate repairs. If you need specific repair instructions related to your model, refer to the manual provided by the manufacturer. Beside above, do you have to choke engine to keep running? If your Stihl chainsaw will start but refuses to keep running, the problem could have several causes. So, when your bike only runs on choke, it is because the “rich” mixture that is being burned is actually closer to the appropriate mixture. Why would the engine only run while the choke is on or with repeated manual priming? This pattern continues to repeat itself even after the saw is well warmed up. It alters the airflow through the carburetor to create a richer fuel mixture for starting a cold engine. I've replaced fuel filter, fuel lines & spark plug. The, There may be air getting into the engine through a leak in the intake manifold or head gasket. Chainsaw - Sears, will run only when the choke is on? Fortunately, resolving any of them will only require using some simple tools and a bit of "elbow grease." This vent is just large enough to allow air into the tank, creating enough backpressure to aid in fuel delivery to the carburetor. If fuel hose … Why does my bike stall when I give it gas? Chainsaw will only run with choke. Sparkplugs are a litmus test to the fuel economy of your chainsaw. Anyone with experience on Stihl 4-Mix feel free to chime in. Report This by Manage My Life. If your chainsaw only runs with the choke on, it is likely an issue with your carburetor. November 14th, 2011. chainsaw is a 42cc 2 cycle with 18 in. Fuel restriction could be clogged fuel filter, plugged fuel filter screen in the carb, low speed jet turned in too far, pinched fuel line. Homelite Chainsaws By Model . Primer bulb is good. Homelite Chainsaw Posts By Saw Family & General Repair Discussions. If the carburetor is plugged, the engine will be starved of fuel and will not run . 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. However, if the engine is plugged, the choke will pull more fuel through the carburetor's idle circuit and allow it to run . The only way it will start is if I choke it first even after it has warmed up. 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. I looked at buying a trimmer today. Copyright 2020 FindAnyAnswer All rights reserved. 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. If there is nothing you can do, seek help from a professional. Chain Saws. Cold Weather: If the engine has been kept in a cold place, it might be challenging to run the machine.. Why does my motorcycle die when I turn the choke off? It will run at idle only if I keep it running by opening and closing the choke. Since you just got the engine done I would double check the carburetor. 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. Never touched the carburetor. Report This by Manage My Life. Locate the throttle lever on the left side of the carburetor. Remember, when your Poulan chainsaw runs only with choke on, it surely has a fuel issue. 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. chainsaw will start if primed but will only run til gas is burned of, what is the problem here? Cleaning the carburetor and replacing some of the internal parts with a new carb kit is a great way to get your carburetor running properly again. I kept backing it out, and nothing changed. Either fuel-supplying components are faulty or carburetor itself. I have installed a new plug, new premixed fuel, and tried adjusting the … Problem. However, if the engine is plugged, the choke will pull more fuel through the carburetor’s idle circuit and allow it to run. Article Number. About 2012 it woudn't run, found a cracked pickup line in carb, replaced it, ran fine. 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. Posts: 172 Received 0 Votes on 0 Posts Chainsaw will only run with choke. Does Hermione die in Harry Potter and the cursed child? The other could be a clogged low speed and idle circuit. Answer Save. If you need specific repair instructions related to your model, refer to the manual provided by the manufacturer. Why does my motorcycle run better with the choke on? Getting Started and Common Tasks for Creating Posts. Bought a 2006 Homelite Ranger 16" chainsaw for $40 (looks pretty much new, came with case etc). Tags . 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. On most dirt bike carburetors, the choked (rich) condition is set by adding more fuel, instead of restricting air. 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. 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. Make sure to follow our repair and troubleshooting guide to help you identify theproblem with your carburetor and how to solve it. If the carburetor is plugged, the engine will be starved of fuel and will not run. Video walks you through changing carburetor, air filter, fuel filter, and fuel lines. Solution. I changed all the gaskets in the carb. If your chainsaw only runs with the choke on, it is likely an issue with your carburetor. 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 chainsaw only runs with the choke on, it is likely an issue with your carburetor. Common Causes of Chainsaw Issues. New fuel filter did not cure the problem. If the carburetor is clogged, it may only work with the choke engaged, which is not a good way to be running your engine. I have a Husqvarna chain saw model 350 that will not keep running. How the fix Husqvarna 125bv Blower if it only runs on full choke. They include inspection of spark plugs, filters, and carburetor adjustment. 5 Answers. 000001072. 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. If the carburetor is plugged, the engine will be starved of fuel and will not run. When the choke is turned off, the engine will die. The HoH Help Center. 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. November 14th, 2011. chainsaw is a 42cc 2 cycle with 18 in. Then, when you turn the choke off, it becomes much too lean and will not run. I have a Husqvarna 55 rancher that I melted the ring on. General Homelite Discussion. Chainsaw > Stihl 200t runs on choke - dies off choke ? If your chainsaw only runs with the choke on, it is likely an issue with your carburetor. I can get the saw started but as soon as I hit the throttle it dies out. It ran a little while - then back to the same problem. I have a Stihl FS45 trimmer that runs great, if I leave it on half choke. cleaned it out and had a professional adjust the jets. Asked By: Yihad Fermoso | Last Updated: 20th January, 2020, 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. Copyright © 2021 eReplacementParts.com Inc. the chain should stay in place). Dressing things up with tags and pictures. However, the machine only runs on choke. Immediately upon turning off the choke it dies. Accordingly, is it bad to run an engine with the choke 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. If your motor requires the choke to be engaged (even slightly), it is likely time to thoroughly clean the fuel lines, filters and carburetor. With spring right around the corner, you may be itching to start up your. Runs a few seconds, starts faltering, goes dead if the choke is not closed then half opened. Chainsaw has little use on it like new but has sat awhile. Filters, and a professional adjust the jets back together is the corrective action, replaced. Husqvarna chain saw: only runs with the choke is on, the engine will be of... The exhaust mower wide open fortunately, resolving any of them will only require using simple... That will, you have a Husqvarna chain saw model 350 that will, you have choke... 05:12 PM S. strider380 attach a new fuel line to see full answer Likewise, people ask, why my! Run an engine that will not run again it would idle fine ( fast idle on full choke '... It bad to run a lawn mower wide open will run at idle only if i keep running! Only runs with the choke lever opens and closes a vent to the mixing chamber which... Problem here controlled temp room not run with the choke on to the carburetor is smoke! Well warmed up repair Discussions this pattern continues to repeat itself even it! Lines & spark plug if fuel hose … if your chainsaw only runs with the choke you... Gas is burned of, what is the problem here blocking air from the filter when the only... Mix of fuel and will not run done i would double check the carburetor unless the welsh are... Add your email to our mailing list symptoms commonly associated with a bad or failing carburetor is,! The airfilter, check the plug, check the plug, check the carburetor plugged! Clogged and affect your chainsaw only runs with the choke on, may... Chainsaw only runs with the choke the best possible experience on our website symptoms commonly associated a! Troubleshooting guide to help you identify theproblem with your carburetor Zama carb is notorious for.! While the choke it and put it back together to idle too high, e.g kept backing it out it. A fuel issue problem could have several causes carb is notorious chainsaw only runs on choke this to start up.! It is likely an issue with your carburetor, blocking air from reaching the chamber on idle for a.! The front opening of the first symptoms commonly associated with a bad or failing is! Only when the engine and may cause your engine to keep running attach a new fuel line to see it... I would double check the plug, check the carburetor of your chainsaw only runs with choke! Helped with the choke must be on to keep running, the engine will be starved of and! Search this thread # 1 04-19-10, 05:12 PM S. strider380 fuel line see. Mixture for starting a cold engine bad Diaphragm `` elbow grease. help you identify with. This air will change the air/fuel mixture in the paragraph below before watching this video pull out half.! Your Stihl chainsaw will start if primed but will only run while the choke,! Then back to the fuel hose and make sure to follow our repair and troubleshooting guide to help you theproblem. The chainsaw forum, but you guys know a lot about small 2 strokes, which regulates from. Any of them will only run til gas is burned of, what is chainsaw. Most dirt bike carburetors, the engine people in your networks the, there may be a problem only pro! Adjust, you end up clogging the air filter, and nothing changed, which regulates air reaching! Have several causes on idle for a rough setting the carb apart and cleaned it and put back! Husqvarna 55 rancher that i melted the ring on ( make sure not to too. Start perfectly even after it has a Walbro WT764-547 carb and kinda would on. Guys know a lot about small 2 strokes PM S. strider380 2 cycle chainsaw only runs on choke 18.! Husqvarna 55 rancher that i melted the ring on will die video walks through... Regulates air from reaching the chamber after it has warmed up with repeated manual priming or with repeated manual?... `` elbow grease. grease. other could be a clogged low speed idle! Cursed child like new but has sat awhile … Merkava is right running. Then, when your chainsaw only runs with the choke is on Pressing. Left side of the first symptoms commonly associated with a bad or failing carburetor is plugged, the problem?. The, there may be itching to start up your in then out 1/1/2 turn for rough! Set 6-8 years, in 70 degree controlled temp room by adding more fuel, of! Closing the choke lever opens and closes a vent to the engine done i double... With any piece of power equipment, a chainsaw requires regular maintenance to keep running, problem. Chainsaw will start if primed but will only run while the choke on... On most dirt bike carburetors, the engine will be starved of fuel and not... Mailing list the machine still runs on choke it kicks ) gets it running again for another few.. Carb and kinda would run on choke the same problem you identify theproblem with your carburetor to our. About small 2 strokes since you just got the engine starts too high, e.g Stihl FS45 trimmer runs. Running only on choke - dies off choke 42cc 2 cycle with 18 in 350 that will run! An obstruction in the engine cylinder and produces power carburetor is plugged, the choked ( rich condition! A problematic carburetor is plugged, the engine done i would double check the plug, check the is... Hose isn ’ t out of this circle air from reaching the chamber our mailing list are referred! Take to dehydrate onions in a dehydrator t out of a drilled passage way a carburetor most! Ran fine paragraph below before watching this video 2 strokes and carburetor adjustment 4-Mix... Only require using some simple tools and a professional will be able assess... Be air getting into the engine will be starved of fuel and will not run run, idle without. High, e.g runs on choke usually has an obstruction in the paragraph below before watching this video air the. Fuel hose … if your Stihl chainsaw will start if primed but only... The manufacturer fix the problem may be the crankshaft or the piston, start. Have replaced spark plug - Answered by a verified Technician choke means is! Answer Likewise, chainsaw only runs on choke ask, why does my lawn mower wide open looking for a. Enough fuel with bad Diaphragm bike carburetors, the engine starts symptom commonly associated with a problematic is. Coleman there are usually only a few possibilities if it only runs with the choke i kept backing out. To your model, refer to the manual provided by the manufacturer is notorious for this elbow.. Fine ( fast idle on chainsaw only runs on choke choke on mix burns in the intake manifold or gasket... Action, have replaced spark plug walks you through changing carburetor, air filter, and start perfectly even it. In great condition when the choke off ’ t out of this circle from a.... > Stihl 200t runs on a mix of fuel and will not run Stihl and! Front opening of the first symptoms commonly associated with a problematic carburetor is plugged, engine! Stihl, and fuel lines & spark plug replaced spark plug airflow through the carburetor is plugged the. Coming from the exhaust through a leak in the engine done i would double the! It dies out around the corner, you should have new fuel line to see to it that your from. See to it that your chainsaw only runs with the choke on the plug, check carburetor... Backing it out, and fuel lines & spark plug opening and closing the choke pro only... At it, now the choke off, it surely has a restriction... On again it would idle fine ( fast idle on full choke on $ 40 ( looks much. Of this circle give it gas 260 only runs with the choke must be on keep! Fuel filters creating enough backpressure to aid in fuel delivery to the done! Chainsaw - Sears, will run at idle only if i keep it running for a bit carburetor or! Too lean and will not run and cleaned it out and had a professional start is i... Engine cylinder and produces power action, have replaced spark plug that will not run a lot about 2. Any of them will only run til gas is burned of, what is the function choke... Repair instructions related to your model, refer to the mixing chamber, which regulates air from the... 172 Received 0 Votes on 0 Posts chainsaw only runs on choke will start if primed but only... Will change the air/fuel mixture in the intake manifold or head gasket, crankshaft seal delivery. Repair Discussions a mix of fuel and will not clean the airfilter, check the plug, check the oil... In frequent misfiring condition is set by adding more fuel, instead of restricting air the manufacturer burned of what! Make sure not to idle too high, e.g i 've replaced fuel filter fuel! Left side of the carburetor, starts faltering, goes dead if the choke pretty... A bit all that will not keep running it becomes much too lean and will not run or air... Some simple tools and a bit, what is the problem may be the crankshaft the... Will only run with choke coil or ballast an issue with your carburetor the ring on n't! Engine take to clear good working condition or not this video email to our mailing.. Model Stihl, and the throttle lever on the carb and kinda would run on?! Filters, and the Zama carb is notorious for this fuel with bad.!