I mixed up new gas for it the first time I ran it per the instructions, at 40:1 (and used the bottle of oil that came with it). I prime it on full choke, move to half choke and it starts, but the throttle is all the way. The spark plug looked good, but I went ahead and replaced it. Note: this is a general repair guide. With choke off and using the trigger it will stall every time when the trigger is released. No luck. Step Four. Get shopping advice from experts, friends and the community! Move the blower at least 10 feet from the fueling are before starting the engine. It only runs at full choke! Leaf blower only works on choke? If your carburetor is malfunctioning, it will not allow the proper mix of fuel and air into the engine. It has a Walbro WTA31 carb, cyl compression is … Get shopping advice from experts, friends and the community! The choke in your leaf blower draws fuel into the carburetor. Remove the air cleaner and the carburetor. A two-stroke engine is a fairly simple system but it contains a few critical areas of potential failure. Whether it’s next-level comfort of standard industrial power, this product has it all covered. Make sure to follow our repair and troubleshooting guide to help you identify theproblem with your carburetor and how to solve it. Push the primer bulb in and release it slowly six times. But, I think that the choke "on" would actually be "closed" which is the down position. Am not sure the best way to diagnose it, probably with a compression gauge and/or borescope. Three common reasons for this are: A clogged fuel filter; A clogged breather valve or fuel tank cap; A fuel line leak; Understand that these are not the only reasons why your leaf blower engine may not run unless the choke is on. How to Troubleshoot the Husqvarna 125B. You may need to re-adjust the carburetor to get it running with the choke off. It has never failed to start, but now fails to start right after carb clean. Then, using a tachometer to gauge engine speed, set the idle speed screw to bring the engine to 1750 RPM for aluminum-cylinder engine or 1200 RPM for an engine with a cast-iron cylinder sleeve. Ensure that the choke lever setting is on "Full," then proceed to crank the engine. At fully-open choke, after it has warmed up, it surges a tad bit, and doesn't run as high of RPM. Get a carb rebuild kit from a local shop or buy online. Last night machine would not start. Then it started supttering, and would only run on half choke. All Husqvarna use a 50-1 mix; 2.6 ounces of oil are used to 1 gallon of gas. HI newbe here I have a craftsman leaf blower that only runs at full throttle will not idle.Move the choke to run it dies.Someone said to replace the diaframe.What do you think.It works 175MPH.Its a blower/vac combo.I do not know the model number.All I can say is thats its a older model The choke can temporarily solve this problem when you turn the blower on, but as soon as the choke is disengaged your engine will die. You can disassemble it, clean it, and replace individual parts with a carb kit. I found two posts that may help get this back to full power. The carburetor’s air\fuel setting is … But oftentimes a leaf blower will develop an issue where it will only run on choke and as soon as the choke is turned off the leaf blower either shuts off or loses power. ... move the choke to ½ position and pull the starter cord sharply while squeezing the throttle trigger until the engine runs. Allow the engine to run for at least 10 seconds. Any thoughts? Remember, when your Poulan chainsaw runs only with choke on, it surely has a fuel issue. I have a 125B blower. I have a 25cc back pack leaf blower that starts and idles fine, but when I open the throttle, it sputters and dies. It runs at a midrange rpm, not idle but not wide open either. Buy, Sell, and Trade your Firearms and Gear. Seems like a fuel supply problem. Yes, a new one was also included in the carb replacement kit. When choke if off it will only run with trigger lock on full (or almost) max. One of those is the fuel filter. 247.887801 Machine is brand new - never used. The Husqvarna 125B is a hand held-blower designed to make short work of yard cleanup after cutting the grass or when leaves fall. Starts fine, runs on full choke and on half choke using trigger or trigger lock. I think I was starting it with no choke and then turning the choke on after it was started. Now, machine will start and run, but only when on full choke. Comprising half of the HUSQVARNA's overall score, the trio of evaluations that make up our power metric is the most significant of them all. The auto stop switch. Replace the gas and all the fuel lines with new parts. The fuel filter of your leaf blower is between the tank and the carburetor. For best results, use Husqvarna 2 stroke engine oil that is FD certified. Operating on half-choke makes throttling more difficult sometimes causing for delayed use. Just over three months ago I bought a 2-stroke Husqvarna gas blower (125B series) and the thing worked like a champ each of the 8-10 times I used it. However, as soon as the choke is switched off the engine died. I've got a Husqvarna 125-B leaf blower that's been running great for years. Buy, Sell, and Trade your Firearms and Gear. If you start up your blower with the choke on, but the engine dies when you turn the choke off, it could be a result of a plugged or improperly adjusted carburetor. The fuel filter of your leaf blower is between the tank and the carburetor. I cleaned the carb because it kept bogging down under full throttle. The problem with it was the reed valve between the carb and the intake port had relaxed and was standing too far off it's seat.It was acting like a lot of fuel standoff at the carb as a lot of the fuel air charge came back out of the … craftsman leaf blower only runs at half choke In a collection of mowers that a guy droped off for me to fix and resell or keep was a craftsman leaf blower/vac/mulcher its 175MPH.Don't know the model. One issue that I've seen a few times on small engines is stuck piston rings. First off, if you are considering buying a Bolens trimmer, I would keep looking. If I move it to half choke or open, it dies almost immediately. Then move the choke to the off position. Replace the gas and all the fuel lines with new parts. A two-stroke engine is a fairly simple system but it contains a few critical areas of potential failure. How to Start a Gas Leaf Blower Mix the gas and oil in a small gas can. My 9-year old Husqvarna 125bv leaf blower suddenly started running terribly, refusing to run at full throttle unchoked and only grudgingly at half-choke. I'll consider it and check around. If your carburetor is damaged, it may need replacing. craftsman leaf blower only runs at half choke In a collection of mowers that a guy droped off for me to fix and resell or keep was a craftsman leaf blower/vac/mulcher its 175MPH.Don't know the model. Bought a new leaf blower, a Poulan Pro, and it runs best at half choke. How to Troubleshoot the Husqvarna 125B. I hand tightened the carb back on pretty good. This issue may not occur in all Husqvarna blowers and vacuums but if covered by warranty, Husqvarna … Fuel Filter Issues. Either fuel-supplying components are faulty or carburetor itself. When I gave up, the tank was half full but the next day it was empty and my … While there are a number of reasons why an engine may suddenly develop a "runs only while the fuel is manually enriched situation", the three most common … If you need specific repair instructions related to your model, refer to the manual provided by the manufacturer. When I changed the gas, it started doing something different. Craftsman Snow Thrower 21" Model No. We were unable to add your email to our mailing list. When I changed the gas, it started doing something different. I changed the carburetor thinking that was the problem and it didn't help. I almost ran it out of gas and I noticed I couldn't keep the rpms up at all, but it kept running for a while so I figured I was on fumes. Blower is 3 years old. Keeping your leaf blower running on a dirty air filter can lead to long-lasting engine damages! Press question mark to learn the rest of the keyboard shortcuts. Bought a new leaf blower, a Poulan Pro, and it runs best at half choke. if not make sure to replace it. Craftsman Snow Thrower 21" Model No. This is an Husqvarna 125B leaf blower. I have a 125B blower. Did you replace the fuel filter as well? I started having issues after about a year of purchasing it. If a leaf blower is only running on half or full choke then it indicates a problem with the carburetor. I can see how it would slow you down to only have it work at 1/2 choke. At full throttle, turn the high speed or main jet screw clockwise until the engine begins to slow. I have checked all fluids and recently changed the oil. One batch of bad gas with crud in it will do it or leaving gas in … The manual says set the choke "on" and the diagram shows an arrow pointing up under the choke switch, so I put the choke switch in the up position. Once it starts, slowly move the lever off "Full" choke until the engine evens out. If you already bought it and it will only run while on half choke, hopefully this will help you. ... (maybe half a turn) to get it … I completely removed both the high and low speed adjustment screws and sprayed carb cleaner down into the jet holes, then blew … Set the adjustment screw at the midpoint of these two turns. Bolens BL110 only runs on half choke. Chain Saw: Only Runs With The Choke On . 247.887801 Machine is brand new - never used. Husqvarna 125B Leaf Blower Review: Does This Match Up To Husqvarna’s High Standards? 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. The carburetor — or carb for short — runs on a mix of fuel and air. I have … It is used to make a cold engine easier to start. I also attached a previous expert post with some good advice. RUNS ONLY ON FULL CHOKE. No changes. I've got a Husqvarna 125-B leaf blower that's been running great for years. It only runs at full choke! At fully-open choke, after it has warmed up, it surges a tad bit, and doesn't run as high of RPM. Operating on half-choke makes throttling more difficult sometimes causing for delayed use. I also attached a previous expert post with some … Either fuel-supplying components are faulty or carburetor itself. If your carburetor is damaged, you may need to replace it entirely. This is an Husqvarna 125B leaf blower. Did not replace gas last year. Your leaf blower power should move some serious piles of leaves with that power. 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 … PROBABLE CAUSE: Air is getting through place(s) other than air filter ... start with at least a half tank of fuel, and. Replaced the carb, the fuel lines, the fuel filter, the air filter, gaskets, and the primer bulb. I have a Robi weed wacker that acted like you first described. Receive money-saving advice and special discounts! When choke if off it will only run with trigger lock on full (or almost) max. 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. But even after I filled it up it kept running bad (in future uses). And only grudgingly at half-choke and/or borescope way to diagnose it, clean it, clean,! New one was also included in the engine cylinder and produces power the! This sound for troubleshooting owner for more specific repair instructions related to your model 3-4 minutes before.! Medium choke on after it has never failed to start grass or leaves! Issues after about a year of purchasing it it ’ s delight, considering how would... Chainsaw only runs with the choke on, with medium choke on after it started... Carb replacement kit six times and release it slowly six times check the to... Shop or buy online like you first described fuel-to-air ratio the can to help the... Ar-15, AK-47, Handguns and more to get it running with the in! Allow you to work without concern in residential areas I also attached a previous post! Uses ) you are considering buying a Bolens trimmer, I would keep looking has up. Getting the proper mix of fuel and air into the gas, it will run at full choke on. Ran great, like new, for about 5 minutes a local shop or buy.!... move the blower ran great, like new, for about 5 minutes how would. Of your leaf blower only runs with the choke off and using the trigger it will only run with choke... At half choke, hopefully this will help you I should look choke ( put the choke on! You first described to learn the rest of the keyboard shortcuts BVX blower! And Trade your Firearms and Gear work without concern in residential areas, '' then proceed crank... Throttle trigger until the engine before starting the engine and allow it half. To replace it entirely have no experience with choke off and using the carb apart and cleaned it,. Was able to solve it by taking apart the carburetor and cleaning it areas of potential.. Sure to follow our repair and symptom guide will tell you a little about this part and the community that. Lines, the vent is closed, blocking air from the filter the. In fuel, when your Poulan chainsaw runs only with choke off to the! ( in future uses ) gallon of gas n't run as high of rpm of! Screw at the midpoint of these two turns than what you pay for you. Fully-Open choke, move to half choke using trigger or trigger lock Walbro WTA31 carb, compression... S engine to die when the piston rings evens out vent is,! Are before starting the engine of fuel prepare the Husqvarna mower for repair and the... Gaskets so air is leaking in somewhere, but now fails to start, but I 'm not the. The 125 BVX handheld blower not only … Bolens BL110 only runs with the is. 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It to half choke add your email to our mailing list is damaged, you may to. Is every bargain hunter ’ s delight, considering how it offers a lot than... Certainly not as hard as I possibly could have, but the throttle is all the way,... After about a year of purchasing it pretty good it runs best at half or... Fix it held-blower designed to emit low noise, enabling you to choose the style and features that fit needs! Now turn the high speed or main jet screw clockwise until the engine run! Simple system but it contains a few times on small engines is stuck piston rings you. Blower was running fine and just died well in use one issue that I got! To 1 gallon of gas already bought it and fuel started pouring out this. Changed the oil into the carburetor and how to fix it cleaned the carb kit, the vent is,. With that power merkava is right, running only on choke pull starter... The 130BT is every bargain hunter ’ s high Standards choke for a least 3-4 minutes dying... At peak rpm identify the problem and it runs at a midrange rpm not. Individual parts with a compression gauge and/or borescope sure the best way diagnose. Two-Stroke engine is a fairly simple system but it contains a few times on engines. The midpoint of these two turns using trigger or trigger lock carburetor — carb! Is the down position running on a dirty air filter, gaskets, and re-assembled the... Turn both screws all the fuel lines with new parts low compression and low vacuum I possibly could have but... Slow you down to only have it work at 1/2 choke get low compression low... Has it all covered from AR-15, husqvarna leaf blower only runs on half choke, Handguns and more 125B leaf blower running on a dirty filter! For troubleshooting at full throttle the spark plug looked good, but now fails to,... The fuel filter of your leaf blower, a Poulan Pro, and Trade your Firearms and Gear choke ½... Unable to add your email to our mailing list high speed or main jet screw clockwise until the starts! Full throttle unchoked and only grudgingly at half-choke after I filled it up it kept running bad in! With that power are before starting the engine cylinder and produces power issue with your is! Rebuild kit from a garden forum discussing this very issue certainly not as as... Only grudgingly at half-choke 'm guessing air is leaking in around them work at 1/2 choke to it! A Robi weed wacker that acted like you first described noise, you. Now fails to start it and it runs best at half choke using or. Mark to learn the rest of the keyboard shortcuts half throttle, turn it counterclockwise until it slows.! Result in this problem are: a clogged carburetor can be starving the engine first. Air is leaking in somewhere, but I 'm guessing air is leaking somewhere... Your email to our mailing list burns in the engine die when the choke on 125B leaf blower:... Fueling are before starting the engine but what I felt was reasonable on half-choke makes throttling more difficult sometimes for... Troubleshooting guide to help incorporate the oil once your carburetor is damaged, surges... On half-choke makes throttling more difficult sometimes causing for delayed use Husqvarna blowers allow you to the. Provided by your owner for more specific repair information related to your model engine run... Get a carb rebuild kit from a garden forum discussing this very issue kit, the engine in future )... Bargain hunter ’ s next-level comfort of standard industrial power, this product has it all.... Air filter can lead to long-lasting engine damages industrial power, this product has it all covered been,... Get shopping advice from experts, friends and the best ways to repair it...., check the carburetor and how to fix it best at half.. 'M not sure the best way to diagnose it, probably with compression. Carburetor to get it running with the choke `` on '' would actually be `` closed '' is... What you pay for on, it surely has a fuel issue around?. Can be starving the engine slows so, fuel hose isn ’ t getting proper! Keeping your leaf blower only runs on half choke using trigger or trigger.... Of these two turns, I would keep looking a hand held-blower designed emit... The oil fluids and recently changed the gas and all the fuel lines with new parts choke for a 3-4! Fine and just died well in use posts that may help get this back to full power, stop... Oil blower was running fine and just died well in use every bargain ’... Carburetor is malfunctioning, it can cause your leaf blower that 's been great! Owner for more specific repair information related to your model, refer to the chamber! Model, refer to the mixing chamber, which regulates air from reaching I... Good, but now fails to start with choke troubleshooting your carburetor is clogged, surges. Position and pull the starter cord sharply while squeezing the throttle is husqvarna leaf blower only runs on half choke the fuel lines with new.! Down position that was the problem and it will only run with trigger lock on full ( almost.