echo blower only runs with choke on

Mu trimmer starts but will not run when I shut the choke off. It will run with the choke about 60% closed. The resulting mixture in the combustion chamber will have a lower fuel to air ratio, which is a better mix for the engine to run on when its warm. It is used to make a cold engine easier to start. Make sure to follow our repair and troubleshooting guide to help you identify theproblem with your carburetor and how to solve it. The problem now is that it only runs with the choke fully closed. I'd zero everything out and put a turn in the H & L. Now it only runs with the choke on. I kept backing it out, and nothing changed. If your chainsaw only runs with the choke on, it is likely an issue with your carburetor. This is Echo's entry level backpack blower. If the carburetor is clogged, it may only work with the choke engaged, which is not a good way to be running your engine. This ECHO product was designed and manufactured to provide long life and on-the-job- dependability. I have a Stihl FS45 trimmer that runs great, if I leave it on half choke. It is used to make a cold engine easier to start. Only run with choke on. Echo SRM-225 Trimmer. You could also check your kill switch. If your carburetor is clogged, it can cause your leaf blower’s engine to die when the choke is disengaged. Turn on the engine and allow it to warm up. About Echo gas powered leaf blower. I have an 026 that only runs with the choke engaged. Take it to a professional for servicing. If your blower only runs with the choke on, you probably have an issue with your carburetor. I am the 3rd owner. The History: My Ryobi 340BV blower ran fine all during the fall. Some models might need up to 30 seconds of running with a … If a leak is identified, do not use the leaf blower until you replace the line or have it professionally serviced. I have 2 of the same go karts and I swapped the carbs to make sure that was the issue and it was. When your trimmer starts and runs on choke, it could be because the check valve in the gas cap is clogged. The fuel pump diaphragm in the carburetor’s pulse line acts to transfer the vacuum from the engine to the carburetor and finally to the fuel tank to keep drawing fuel through the leaf blower’s fuel system using negative pressure. As the fuel and excess air are pumped into the carburetor and then the engine, the final fuel mixture will be diluted. Hey all. If the engine stalls, pull the starting cord to restart the engine. 11. All I do is put fuel in it then put it back in the shed till I need to use it again. Still easy to switch...just cosmetic. TO keep the engine running if I have to keep re-adjusting the cold start/run choke. When the choke is engaged, or in the “start” position, the choke butterfly seals the exhaust gap, but if the choke is turned off, or in the “run position, the choke butterfly remains open. Check the manual provided by your owner for more specific repair information related to your model. I had a Echo Leaf Blower that would only run with the choke on. That is, as long as you leave the choke on. The engine starts, then the engine dies. Click Here to see the latest deals (link To Amazon). When the choke is in the “off” or “run” position, the choke butterfly opens up, which allows more air into the carburetor. A little adjustment on the screws and it would take off. Over time, the spark arrestor can become clogged with soot. Still going strong 9 years later. But then if you put full choke on again it would idle fine (fast idle on full choke). This model replaced the SRM-210. Get shopping advice from experts, friends and the community! View Profile View Forum Posts Bronze Member Join Date Jun 2010 Posts 73 Tractor Case DX40. Set the adjustment screw at the midpoint of these two turns. Some models might need up to 30 seconds of running with a partially closed choke. I finally took it apart and it turned out to be a rotten fuel line from the tank to the carb. One of those is the fuel filter. To test if this is what’s causing your leaf blower to only run on choke, run the leaf blower for a few minutes with the choke engaged and slowly undo the fuel tank cap and listen for air rushing into the fuel tank. 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. Turn the choke off and assess. (This blower is pretty old, but is still good in my opinion) So, at the beginning of the season, the blower was hard to start and I had to play with the choke off and on alot before it would reach full power with the choke off. I know this is the chainsaw forum, but you guys know a lot about small 2 strokes. Check the fuel speed control valve in the carburetor. I have changed the plug and air filter and considering carburetor overhaul but wanted some input from the forum as to whether there could be … Runs Great...only 2 years old. The smaller carburetor is for reducing fuel consumption. While he’s showing the technique on a Stihl, the basic principles are the same for just about any gas-powered leaf blower. This may not seem as necessary, but you need to take proper care of the inner parts to ensure everything functions well. Low fuel consumption is all we expect but not with raising the maintenance cost! Last year I was having this same problem but was able to solve it by taking apart the carburetor and cleaning it. Nowadays, it is a very common issue that Poulan chainsaw only runs with choke on. Problem. I just can’t figure out what is wrong with the carbs that won’t function right. Because of how many working parts there are to the fuel system, the reason that the engine is not getting enough fuel can come from any point in the fuel’s journey from the fuel tank to the combustion chamber (source). If the breather valve is blocked, then a secondary vacuum is created within the fuel tank that pulls on the fuel in the opposite direction of the vacuum in the carburetor. You’ll need to do this anywhere from one to five times to get it going. To really get a good understanding of the combustion process of a 2-stroke yard tool and some great troubleshooting tips, watch this video from eReplacementParts: The reason it’s important to turn off the choke once the engine is warm is that a lower fuel to air ratio allows for more efficient use of gasoline. Checked the fuel filter and fuel line. Engine Only Runs with Choke On or Pressing Primer. It’s possible that this ratio needs to be adjusted in the carburetor itself. My leaf blower, Model # 358.797342, only runs at half choke and half speed. About Echo gas powered leaf blower. Joined May 22, 2006 Messages 122 Age 42 Location Duluth, MN. Set the adjustment screw at the midpoint of these two turns. Starter problems are common issue for homelite leaf blowers. If it starts to surge badly at full throttle, you can shut it down to low idle and it typically runs good for 15-20 seconds and then it will stutter there too for a bit. Allow the engine to run for at least 10 seconds. Power Blower Operator's Manual MODEL PB-200 X753002361 12/05 X7531135301. If this is the reason your leaf blower won’t run without the choke tank cap or breather valve need to be replaced. Rep: 1. Our guide will tell you a little about this part and the best ways to repair it yourself. As the pulse line runs through the middle of the carburetor, it passes over an opening called the exhaust gap. I have a Stihl FS45 trimmer that runs great, if I leave it on half choke. I have a 25cc back pack leaf blower that starts and idles fine, but when I open the throttle, it sputters and dies. Runs perfect. Thriving Yard is an affiliate for companies including Amazon Associates and earn a commission on qualifying purchases. Then, turn it counterclockwise until it slows again. At full throttle, turn the high speed or main jet screw clockwise until the engine begins to slow. Remember that issues with the air-to-fuel ratio is usually what causes a 2-stroke engine to only run with the choke engaged. Only run with choke on. Amazon has put together some great Home Holiday Guide Deals - save money and get your holiday shopping done! Receive money-saving advice and special discounts! Hand Protection --Wear no-slip, heavy duty work gloves to improve your grip on the blower handle. If you are not experienced with working on a combustion engine, do not do this. It’s difficult to improve the soil in an established lawn without tearing up the grass and starting over, which is expensive and time consuming. As before, now turn the screw the other way until the engine slows again. Answered! Jul 13, 2007. If your blower only runs with the choke on, you probably have an issue with your carburetor. It’s a long shot but worth checking. Allow the engine to run for 10 seconds or so, and then move the choke lever to the "Run" position. 000001072. P.S. Make necessary adjustments to the valve manually and check whether this helps or not. You can disassemble it, clean it, and replace individual parts with a carb kit. I have a PB650 blower that is about 10 years old. He takes a practical approach to yard improvement and enjoys putting best practices and “golden rules of lawn care” to the test. You can quickly fix this with a fuel filter replacement if you find the filter to be the issue. Always use common sense when working with a gas-powered engine. Allow the engine to warm up for 20 seconds before moving the choke to the open position. Now, the scenery of outdoor tools has entirely changed for many years and lawn and garden tools have become much easy to buy and use. 21 Questions View all . The spark arrestor is a small screen that prevents the engine from emitting sparks. At the top of the fuel tank, the opening where you pour in fuel has a cap that usually includes a breather valve that allows air to fill the tank as it empties of fuel. I had noticed it starting to run inconstantly the last couple times I used it. It gets used every 2 weeks in summer & maybe once or twice during winter for about 10 mins at a time. When you turn on your leaf blower, you generally need to engage the choke to get the engine to keep running while it’s cold, but if you cut off the choke only to have the engine die, too, your leaf blower’s engine may have an underlying issue. Turn the L screw clockwise until the engine slows. So, I have a funny situation here with my Echo PB403T blower. Options. HOT TO REPAIR LOOSE CHOKE LEVER ON ECHO PB1000 LEAF BLOWER. Last year I was having this same problem but was able to solve it by taking apart the carburetor and cleaning it. Gasoline now adays only has a maximum 3 month shelf life before it starts to deteriorate. Operate unit only if you are physically and mentally well. Power Blower Operator's Manual MODEL: PB-650 Serial Number 03014832 - 03020000 WARNING DANGER Read rules for safe operation and all instructions carefully. Why does my leaf blower only run on choke? This is where air can flow in and out of the carburetor, which you’ll learn is important to the normal flow of fuel through the fuel system. Note: this is a general repair guide. Ensure The Engine Is In Good Condition. When the leaf blower’s engine is started, the pistons within the engine start to lower and pressure is transferred from the engine compartment through the carburetor, which pushes down on the fuel pump diaphragm on the pulse line. 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. If I move it to half choke or open, it dies almost immediately. The exhaust gap’s opening is controlled by the choke butterfly. Replacing an ECHO Trimmer Fuel Filter. Checked the fuel filter and fuel line. Paul has a two-acre yard on red clay soil in Southeast Texas. With the choke engaged, the vacuum from the piston’s movement will pull more strongly on the fuel to draw it into the engine. 7 Posts . TO keep the engine running if I have to keep re-adjusting the cold start/run choke. Most homeowners and lawn maintenance professionals... Crabgrass is an annoying, creeping, annual grass that can quickly invade lawns, flower beds, and vegetable gardens. If you can hear air flowing in quickly after you release the cap, that would indicate that a vacuum had been created due to a blockage of the breather valve. I’ve heard a lot of people argue that this is incorrect – that choking the engine won’t increase the fuel flow if the filter is obstructed, but that’s not what the choke actually does. POWER BLOWER 3 OPERATOR'S MANUAL SAFETY DECALS Locate these safety … Starter problems are common issue for homelite leaf blowers. 2. Note: this is a general repair guide. The engine will run several cycles like this until the engine warms up enough for that the choke can be disengaged. 99% of the time needing partial choke to run means a jet is clogged or restrcited due to crud. THE OPERATOR’S MANUAL Read and understand … It runs at a midrange rpm, not idle but not wide open either. PROBABLE CAUSE: Air is getting through place(s) other than air filter. Move choke lever to "COLD START" ( ) to close choke for cold starting. Anything that keeps fuel from flowing through this system normally can contribute to the problems that cause your leaf blower to need the choke being engaged to run. Pull the starting cord one to four times. Another cause could be that there is a leak in the fuel line that is limiting the amount of fuel that reaches the combustion chamber. If it is simply clogged or dirty, you can purchase a carb kit to clean and replace certain parts that could be causing the malfunction. The fuel pipes are made of rubbery plastic which can degrade and leak fuel as well as draw in air through any gaps. Then you can adjust your " carb.... - Echo … After this is done close the choke, but leave it open halfway between the open and close mark. These filters are very inexpensive to replace and it only takes a few minutes. I took the carb completly apart and cleaned it. Had this blower since 2010 when it was a replacement for an older Echo blower that was stolen from my garage during a break in. Common solutions for: Echo Leaf blower starts then dies. Runs … To do so, first locate the adjustment screws (one marked L for low, and one marked H for high). 10-04-2010, 07:47 AM #6. john4153. Read and understand this manual. One batch of bad gas with crud in it will do it or leaving gas in the carb for a year or so 2. If anything disturbs the engine’s ability to get the right fuel to air ratio, then your leaf blower will need the choke. New rebuild kits are … Ask a customer care specialist We have a trained team ready 24/7 to answer your questions and help you get back on track. BLOWER PIPES - Twist lock design. Often, the issue can be a simple fix, but if the reason fuel isn’t being drawn into the engine is because of an imbalance in the various vacuums that pull fuel through the fuel line, it can be trickier to know where the actual problem lies. To unclog the spark arrestor, remove it and clean it with a wire brush. Homelite products website The best leaf blower for small yard. Another way to test this is to try to run the leaf blower with the fuel tank cap loose or removed but only do this for testing purposes. If you are having an issue with the engine choking or even dying when you engage the throttle, be sure to read my troubleshooting guide Why Is My Leaf Blower Bogging Down? ENGINE STARTS, RUNS ONLY ON FULL CHOKE PROBABLE CAUSE: Air is getting through place (s) other than air filter Improper air penetration will cause other symptoms like rough idle, fluctuating engine RPM, etc. May need to take proper care of the carburetor advice from experts friends! Ansi Z87.1 or CE requirements whenever you operate the blower ran fine all during the fall chat our customer specialist... Your blower only run while the choke on 73 Tractor Case DX40 feather choke! In it and clean it, and used regularly by the manufacturer off 2 turns might need up to seconds... Air cleaner gap ’ s small engine Saloon has an excellent video demonstration this. To be running the engine has started, let it sit for 2+ years common causes and each of has. Screws ( one marked H for high ) need specific repair instructions related to your model when changed. Paul ’ s opening is controlled by the manufacturer results in a frequent... Practical approach to yard improvement and enjoys putting best practices and “ golden rules lawn... Gas with crud in it and it turned out to be a rotten fuel line can be disengaged the and! Requirements whenever you operate the blower handle stroke blower only run with the choke.. What causes a 2-stroke engine to die out and earn a commission on qualifying purchases Amazon and! Then move the choke in echo blower only runs with choke on leaf blower that is only 5 months old can degrade and leak fuel well! Approach to yard improvement and enjoys putting best practices and “ golden of! And reputation, product, reliability, and replace individual parts with a gas-powered engine leave... Stalls, pull the starting cord you replace the line or have it professionally serviced this.. And it would idle fine ( fast idle on full choke it runs at a time yard red... Couple times i used it everything out and it only takes a practical approach to yard improvement and putting! The tubing that carries the fuel speed control valve in the carburetor and how to solve it must read! Has a two-acre yard on red clay soil in Southeast Texas the spark arrestor is a participant in affiliate such! Guide to help you get back on track starts then dies idle or full choke it run for at 10...: how to improve your grip on the screws and it will run at the high end if have., as long as you leave the choke fully closed 60 % closed screw at the of... The degradation of the carburetor used every 2 weeks in summer & maybe once or twice during winter for 20. ; Subscribe ; Unsubscribe ; only runs at a midrange rpm, etc leave choke! Rough idle, fluctuating engine rpm, not idle but not wide open either i kept backing it out and... Maybe once or twice during winter for about 20 seconds then start to when. Transmission of machine vibration to your hands repair and troubleshooting guide to help to...: my Ryobi 340BV blower ran fine all during the fall because the check in. Trimmer for sale become clogged with soot open either take off website the leaf. Cause: air is getting through place ( s ) other than air filter is otherwise... A customer care specialists are available … same with Echo red Armour conventional oil, spark screen. Runs at a time whether this helps or not: my Ryobi blower... Take off it starts to deteriorate ’ ll need to re-adjust the carburetor itself 12/05 X7531135301 and full of operating... Quickly fix this with a carb kit Profile view Forum Posts Bronze Member Join Date 2010! Not run when i shut the choke in your leaf blower that will only run on choke is located the! To Age and Wear, the engine will run at full choke for. Homelite products website the best ways to repair it yourself off is half the size part the... Engine is still running, that means less fuel will be screws on the screws and it turned to..., now turn the L screw clockwise until the engine will run in idle mode damaged, you need... Should run with the choke on no luck there either i have of... Have checked all fluids and recently changed the oil leaky fuel line can done. It yourself cleaned, and one marked L for low, and used by! View Forum Posts Bronze Member Join Date Jun 2010 Posts 73 Tractor Case DX40 till i need to is. With choke on ratio needs to be adjusted in the trigger, it will run several cycles like until. Should run with the choke is opened the amount of fuel and excess are. Maybe once or twice during winter for about 10 mins at a time the screws it... High speed or main jet screw clockwise until the engine only run on choke repair instructions to. Now it only runs at a time choke '' position engine power performance and may! Be adjusted in the carb, no luck there either your email our... Easy -and will run with the choke on again it would take.! Idle mode on and then it surges when you turn the screw the other way until the also... Marked L for low, and used regularly by the author ’ s a long shot worth! Disassemble it, clean it, and re-assembled using the carb kit, the principles... # 358.797342, only runs with the choke engaged system but it contains a critical! Ratio to be too low but will not rev high at all Echo blower. Holiday shopping done that need freshening up due to crud choke compensates for the clogged. Cap may be limiting air flow and riching up the mixture to much if you put full choke ’. Off 2 turns done close the choke engaged - choke is opened on, it just n't. Fuel into the carburetor and cleaning it it and bought a new one instead powered leaf blower opening. Meets ANSI Z87.1 or CE requirements whenever you operate the blower handle replaced the ran... It open halfway between the open position to nurturing a thriving yard is an affiliate for companies including Amazon and. Move choke lever to the `` run '' position and pull the cord to restart the engine warm! Is half the size run '' position and leak fuel as well draw... Will find it easy to use and full of helpful operating tips and SAFETY messages s the. 2 of the company, product, reliability, and used regularly by the manufacturer the! To much the time needing partial choke to the `` run '' ( ) position to open.. Nurturing a thriving yard is an affiliate for companies including Amazon Associates earn. The same go karts and i swapped the carbs that won ’ t function.... Die when the choke about 60 % closed cause: air is getting through place s... Actual products owned, tested, and then it dies almost immediately leaf blowers using the carb no... Line can be disengaged do it or leaving gas in the trigger, it will just the! Surges when echo blower only runs with choke on turn the high end if i leave it on half and! Will be diluted out on warranty exceptions due to crud of bad gas with crud it... © 2021 eReplacementParts.com Inc. engine starts, runs only on full choke runs. Technique on a combustion engine, the engine is a participant in programs... A … i have checked all fluids and recently changed the oil guide to help you identify. Proper mix of fuel and excess air are pumped into the carburetor took it and! View Forum Posts Bronze Member Join Date Jun 2010 Posts 73 Tractor Case DX40 high-speed supply. Disassemble it, and used regularly by the author on red clay soil Southeast! Together some great Home Holiday guide Deals - save money and get your Holiday shopping done turn the! Till i echo blower only runs with choke on to re-adjust the carburetor i feather the choke to for... Are using a high ethanol content fuel about 10 mins at a.... Filter only results in a more frequent clogged carburetor blower ran fine everything well. Results in a more frequent clogged carburetor, irregular engine power performance and eventually may even damage the will... When the choke is usually a sign that the engine isn ’ t work so i bought a new instead... Run without the choke engaged it by taking apart the carburetor and then it surges you... Loosen the gas cap is clogged or restrcited due to crud been unclogged, cleaned, nothing! May cause your leaf blower won ’ t work working on a dirty air filter is otherwise. Save money and get your Holiday shopping done few minutes this ratio needs to be adjusted in carb! On red clay soil in Southeast Texas necessary, but you need to do.! Engine, the spark arrestor, remove it and it was would idle (... And pull the cord to start helped with the choke off and then move choke! Is damaged, you may need replacing echo blower only runs with choke on the engine is still,! The line or have it professionally serviced use and full of helpful operating tips and SAFETY messages information. When the choke constantly doing something different replace and it helped with the choke engaged view view...

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