Any ideas? Remove the gasket and the diaphragm. Install a new vent valve. I have clean the carburetor, and replaced diaphram. Get shopping advice from experts, friends and the community! The weedwacker only starts on full choke and stalls when taken off of full choke. Have taken the carb off and cleaned it also. If your chainsaw started off bogging down somewhat under throttle or did not run at all without choke, then you should try different gas. I gased it up and was able to start it with the full choke on. Check the fuel filter, replace if dirty. Had this problem with it last year so today I figured I'd take a whack at fixing it. The stihl time lawn professionals, the line but stalks of young central europe GmbH weed eater, that search. Its brand new. It will also cut out on half choke or … I have a Husqvarna 125L that won't run unless I have the choke 1/2 on. Remove the air cleaner housing and air filter. If it has gone out of adjustment, it can cause the engine to run with the choke on all the time. Take the cap off and clean it with a brush, using warm, soapy water. I started having issues after about a year of purchasing it. Replacement is easy and if you have already tried fixing you should be able to replace it. Make sure your oil/gas is mixed to the correct ratio. The problem is as soon as I try and take it out of the full choke position the engine dies. - Answered by a verified Technician. Serious answers only, please. The fuel vent allows air to enter the tank, preventing a vacuum inside the tank as the fuel level drops. If it is not, the cable may be stretched and should be replaced. My gas powered weed eater has 3 settings for the choke. Start the trimmer and let it run with the choke on. At fully open choke the unit dies out almost immediately. Check the fuel lines, replace if cracked and stiff. I have changed out on echo srm 225 weed eater spark plug, fuel, air filter, fuel filter it will start with full choke but soon you start to turn choke down will stall out and also will not idle up when giving it throttle up speed does not change. Re-install the air cleaner housing and filter, and any covers you removed to gain access to the carburetor. Was recieved as gift in Sept. 2011. Stihl manufactures trimmers with two-cycle engines as well as ones with four-cycle engines, and both require a … The car now will only run with Full choke, as soon as I let out of choke it sputters and dies, I checked the timming and it is fine everything seems to be good but still wont run with out choke. Inspect the gasket for signs of deterioration. I replaced the adjustment boot cause it was cracked. If this gasket is in really bad condition, it can cause the engine to only run with the choke on. The edger blade rotates continuously during all this. Remove the covers in order to access the air filter. Other Potential Causes Of A Leaf Blower Only Running On Choke. At half open choke the unit runs faster but stalls out if I try to use it to cut, or even just stops itself after about a minute. Copyright © 2020 eReplacementParts.com Inc. My gas powered weed eater has 3 settings for the choke. Hi all, i got myself a near new Ryobi whipper snipper which has not seen much use at all.. A working carburetor blends the air and fuel together to the right ratio for combustion. If this occurs, there are multiple parts to check, such as gas cap, carburetor, fuel filter, fuel lines, and gasket. I recently pulled my weedeater out of the shed after a long winter. We use cookies to give you the best possible experience on our website. The gasket has to be replaced regardless of condition at this time, as they are a onetime use. To adjust the carburetor, start with both screws backed out 2 turns from the closed position. Well I first prime it a few times, and with the choke on full, it starts and will idle, ill let it warm up and as soon as i move the choke to half it bogs/dies right out. I'm hopping it just needs an adjustment on carburetor and not a carburetor rebuild. The unit only starts with choke closed and throttle wide open. Before beginning this repair, take photos of the carburetor so you can easily reassemble it. Disconnect the cable at each end and install a new one. They are ( Full choke, Half choke & choke off.) When you cleaned the carburetor did you soak it in a quality carburetor cleaner? Once it's running, it only runs for 10 secs, or so,before it dies. Some small carburetors use a flexible diaphragm as a pump. … Turn off the engine and remove the gas cap. The problem is as soon as I try and take it out of the full choke position the engine dies. It will allow you to eliminate the fuel filter as the source of this issue. I just installed a torker 289 and a edelbrock 1405 600cfm carb on my 302 HO. Take the cap off and clean it with the brush, using warm, soapy water. If you give it a little choke (on click), it bogs down, and anything more than a tiny bit of choke (2 or 3 clicks aka. Once it's running, it only runs for 10 secs, or so,before it dies. To check this gasket, first remove any covers around the engine so you can access the carburetor. have a Poulan PP330 that only runs with full choke. The New Ryobis and Homelites are disposable, Many don't even have air filters. If you need specific repair instructions related to your model, refer to the manual provided by the manufacturer. Check your fuel lines for cracks and replace them if necessary. Remove the air cleaner housing and filter. We were unable to add your email to our mailing list. Keep playing with the low speed needle until you get rapid immediate response from the throttle, and good idle with the idle adjustment. When started it only runs on choke, you can rev it up. Next, remove the screws on the bottom of the carburetor and pull the bottom off. Start the trimmer and let it run in choke. It is due to too much air and not enough fuel. Answered! Take this opportunity to clean out the carburetor with carburetor cleaner. Some models have gas caps with a built-in check valve to allow air to enter the tank, to prevent a vacuum inside the tank which would restrict the flow of fuel. Disconnect the cable at each end and install a new one. I am not sure why it does not run. Remove the air cleaner housing and filter. Then you can adjust your " carb.... - … Immediately upon turning off the choke it dies. First off, if you are considering buying a Bolens trimmer, I would keep looking. Any air leak there will cause your problem. Air Filter. WHY your motorcycle only runs on CHOKE. Next locate the adjustment screws. They can become gummed up easily in 2-stroke engines. I don't want to take the trimmer apart to … A rare trimmer symptom is when it works, but only when the choke is on. From now on, add Stabile Blue to your fuel, the methanol fuel we have today is messing up a lot of carbs so empty after each use or definitely use Stabile Blue or similar gasoline stabilizer. Written on: July 14, 2020. line trimmers image by Horticulture from Fotolia.com. I'm sure it is due to the ethanol in fuel, fouling up the carb. I have been using it on full choke but not sure I should be. Most will start and run with both screws open 2 turns. Reinstall the air filter housing and filter. It's been out of service for 20 years, and I'm trying to revive it. If you’re just here for the quick answer as to why your generator only runs on half-choke (or full-choke), then this is what I would tell you: A generator will generally stall with the choke turned off if either there too little fuel relative to the amount of air, or too much air relative to the amount of fuel. Once you've tried some good stuff you'll wonder why you ever put up with junk. It’s possible that this ratio needs to be adjusted in the carburetor itself. When you move the choke ever to the mid-point, it dies like you hit the kill button. When he gave it to me, he said it would start but promptly die. Remove the screw and pull these parts out of the carburetor. Install the new needle and lever on the bottom of the carburetor and reinstall the screw to secure them in place. The gasket has to be replaced regardless of condition at this time, as they are a onetime use. Replace it if it's too dirty to clean. The unit only starts with choke closed and throttle wide open. any ideas what is the problem I have tired to make the mixture as rich to as lean as I can go no change. thanks. Make sure the choke functions properly, as it should be closed for start ups. I also soaked the carb in 70 percent isopropanol. Get shopping advice from experts, friends and the community! 2 stroke engine will only run on choke.? Last night machine would not start. String trimmers come as one of three varieties: petrol-driven, electrical (corded), or battery-powered. To check this gasket, first remove any covers around the engine so you can access the carburetor. Remove the air cleaner housing and filter. Next, hold the throttle wide open, and slowly turn in the high speed, until it starts to smooth out and rev high, and starts screaming, then back this out until it starts to run rough or slows down. I have changed the fuel filter, put new gas line when i changed the fuel filter. Bolens BL110 only runs on half choke. Share This Post. Having problem with my homelite weedeater. That brass collar with the plastic plug in it - thread a sheet metal screw in there and pry it out with a pair of side-cutter pliers. Additionally, it is ideal to use on unleveled terrains where lawnmowers cannot go. Run some Seafoam in the fuel. They are ( Full choke, Half choke & choke off.) Also, you could have a leak in the fuel line or primer bulb causing it to pull air and not enough fuel. Receive money-saving advice and special discounts! Spark plug touch a much easier considerations a trouble payment options, are handle really hard cut, this year. My Husqvarna string trimmer will only run with the choke at the half closed position. I have changed the fuel filter, put new gas line when i changed the fuel filter. This can result in the choke having to remain on in order for the engine to run. Trimmer: Only Runs With The Choke On . To adjust the carburetor, start with both screws backed out 2 turns from the closed position. Written by: Eric Blankenburg. Our repair information is a general guide to help you, but for more specific repair information related to your model, check your owner’s manual. tried another carb & still the same. 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. What could cause this? Un-pinch the fuel line to allow fuel to flow again. Locate the carburetor underneath the air filter. By continuing to use this site you consent to the use of cookies on your device as described in our … 3 Answers. i have two craftmans 17in weedwakers. If the fuel filter becomes plugged it can starve the flow of fuel to the engine, causing the engine to run with the choke on. The choke on your Weed Eater -- or on any gasoline-powered trimmer -- is designed for one specific purpose, and that is to cold-start the engine. I am working on a string trimmer for my neighbors, which is a craftsman branded 2 stroke. If this gasket is in really bad condition, it can cause the engine to only run with the choke on. Trimmer runs with choke on only or it dies out. Some small carburetors use a flexible diaphragm as a pump. Un-pinch the fuel line to allow fuel to flow again. Reinstall any covers you removed. Remove the bolts holding the carburetor down and pull off the carburetor. My instruction manual does not cover carburetor adjustment. If it has gone out of adjustment, it can cause the engine to run with the choke on all the time.