When the primer won't prime, the engine won't run. If you need further assistance, please resubmit your question. You should be able to see the primer line. If it still does the same, the carburetor has a bad diaphragm and the inner check valve is not working. Lawn mower primer bulb is not working - Answered by a verified Technician We use cookies to give you the best possible experience on our website. removed carb cover, confirmed fuel as far as bowl and partially drained bowl. Relevance. If the primer bulb is not working, you may need to troubleshoot it. 125b Huskvarna blower is not working. 2 years ago. That should solve your issue as long as your lines are in good condition. if the primer base is stop up how do i check it? I would start by replacing the fuel filter since there's absolutely no way to … Craftsman garage door opener model 139.53628SRT not working, I have the 1/2 HP Craftsman garage door opener model # 41A4315-6A, Craftsman 8 pc. 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. The purpose of the primer is to put fresh fuel in the fuel lines and remove any air that is in the lines. Answer Save. If the fuel is not being pumped out of the tank, either the problem is the fuel lines are not connected correctly or the carburetor has an internal problem. Model 20017 Serial 220071311. This will help in locating the parts on the product. You can tip the snow thrower on to its nose. If the primer line is sticky feeling, you have to replace the line. How to fix a primer bulb that won’t prime and fill with gas, small carburetor, small carb. If it is clean, look for damage to the bulb or receptacle. If it's not working, then you either have a bad primer bulb, plugged fuel lines or in-tank filter, or plugging in the small ports of the carburetor on the fuel pump side. The darn thing still will not prime (no fule in the primer bulb). Ask Your Own Small Engine Question. Lv 7. Examine the bulb for corrosion or debris that may be interfering with the bulb's operation. It can also mean the bulb has deteriorated and does not create pressure when the bulb is pressed. Lawnmower PRIMING Button PROBLEM can be FIXED. Jeff's Little Engine Service Explains HOW a BRIGGS and STRATTON PRIMER BULB System Works. 3-7 HORSEPOWER ALL BRIGGS AND STRATTON motor with a PRIMER BUTTON BULB.Music by BonzaiRod. The primer with the tube is common over here on the big box store mowers. - Answered by a verified Technician ... Primer bulb won't suck fuel. Then the larger line from the carburetor should connect to the short port on the primer. Thank you for watching! It's a Toro mower. Lawnmower PRIMING Button PROBLEM can be FIXED. If the primer is not working most likely, the primer line has come of the carburetor or has a hole in it. Most small engines will not start if the carburetor is dry. I'm at my wit's end with this thing. The ball and spring will fall out. With these videos I hope you are able to fix and repair your lawnmower yourself with minimal parts, knowledge and tools. Vacuum is what makes that bulb work. Blower, lawn mower, weed eater, trimmer The primer bulb should have some type of a in/out diaphragm under it. So there's only a few things that can go wrong. If it does not feel like it is moving gas the fuel line from the tank to the bulb may be clogged or disconnected. My mower’s prime bulb never has … Ray Bobo says: July 18, 2017 at 1:02 pm. Small perforations on the rubber could inject enough air into the fuel system to make the suction too weak. Also the white tube on the carb has been the cause of bad starting as it should be sealed (possibly a running change due) if the primer bulb is fitted in the middle of the air filter cover as not enough fuel is being pushed up. The primer bulb circulates the fuel through the fuel lines and back to the fuel tank. PRIMER BUTTON will not work. Replace any worn or cracked bulbs. ... have a 10 hp --28 in yard machines snowblower. Push primer button not working on snowblower...if I pour gas in it works but won't turn over, lines aren't broken...? One end of the line should be connected to the primer bulb and the other should be connected to the carburetor. When the primer bulb isn't working, it may be a problem with the bulb itself, with the fuel lines that feed fuel to the bulb or both. Will a craftsman snow blower 486.24837 fit my 917.258860 garden tractor? What It Does. Get more answers from the people in your networks. You should be able to see the primer line. elhigh. Gaskets. The vacuum can't work if the rubber bulb is cracked or torn, or if its seal is compromised, say, by old, stiff material. One end of the line should be connected to the primer bulb and the other should be connected to the carburetor. A primer will pump a small amount of gas into the carburetor. The primer bulb on a Briggs and Stratton 5 horsepower engine is located on the back of the air filter assembly next to the carburetor. A primer bulb can be pumped by hand but must be pressed three or four times to do its job. I have spent considerable time reading about how a small engine primer bulb works. Always work safe. If that has worn out, you will have the problem you're describing. Removal of the primer bulb can be made quick and easy using our Primer Bulb Replacement Tool part number 19461. Yesterday, while working on the boat in the driveway, I noticed that the primer bulb was not hard so I squeezed it a few times to fill it with fuel. Was told that a new carberator was installed. Check the primer bulb to make sure it is working. Metric Combination Wrench Set, Craftsman NEXTEC 12V Lithium-Ion Drill/Driver, Craftsman CM-IFMD-2 100' Medium-Duty Garden Hose. I pulled the tank and checked the filter and that appears okay as well. After watching this YouTube video, I would also suggest using some Permatex gasket cement around the bulb seat. Remove the bulb assembly collar and the bulb. If not, install a new bulb. \"George\"Copyright 2016 Jeff's Little Engine ServiceDonations are greatly appreciated and help me make vids, just click the Paypal link below. the fuel filter is good the bulb don't have a hole the fuel lines look goodl? How the Primer Bulb Works on a Briggs & Stratton 5 Horse Engine. I have a Craftsman snow thrower Model # 247.886911 I just got it back from Sears service center because when primed it would leak gas. Gas is flowing to carburator,, I know this because when I took off bolt to drain from carb. Without gas in the combustion chamber, the engine will not fire. NOTE: Do not stretch, bend or compress primer spring. gas flowed freely , but will only start when I pours little gas into bowl on top of carb then shuts off as soon as that gas is gone. Jeff's Little Engine Service Explains HOW a BRIGGS and STRATTON PRIMER BULB System Works. Get shopping advice from experts, friends and the community! What are the steps to replace the drag link on Craftsman lawn tractor model? Thanks!https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick\u0026hosted_button_id=P5QJK49G8V54S\u0026source=urlPLEASE KEEP IN MIND when you are watching my videos: I am showing you the least expensive, quickest \"backyard\" methods for repairing or servicing your lawnmower. Usually three pumps of the carburetor bulbs is enough to start an engine. Went to start it for the first time since I got it back and the primer is just sucking air and can't get to start. Pry retainer out and remove bulb from primer seat groove. I need to adjust the speed of my snowblower. Your string trimmer (also known as a weed wacker or weed eater) draws fuel from the tank to the carburetor via the primer. It is not leaking the gas anymore. It works by squirting fuel into your engine. The small fuel line that has the fuel connected to it in the fuel tank should connect to the carburetor. Remove primer seat using a crochet hook or other type of hook. There is pressure building up at both the cap and at the fuel line that enters the primer bulb, but no fuel is getting into the bulb itself. Once it's started, it runs just fine and will restart easily, if … 5 Answers. The carburetor is a part of the engine that mixes fuel and air together to make a combustion. Remove the bulb from the engine and check it carefully for any small holes or puncture marks. Another cause of the primer's filling problem could be the bulb itself. The good news is that you don’t have to panic or run to buy a new lawn mower. Then today, after the boat had been sitting un-used for 24 hours, again I felt the primer bulb and again I noticed that it was not hard. It is the easiest way to use a lawn mower, and many users swear by it. One of the hoses was broken leading to the carby. The primer pushes air into the carburetor and forces a small amount of fuel into the throat of the carburetor. Sometimes you have to replace the whole primer assembly (recommended anyway) and sometimes you can just replace that diaphragm. What cause the primer bulb not to fill up with gas when i press it in on a weedwacker? You can look at a parts diagram for your product at [www.searspartsdirect.com]. It has spark - carby is clean. Your question was published, help is on its way! However, in some unfortunate cases, the primer bulb gets damaged or stops working. Replacing all components such as gaskets and fuel lines is always recommended when rebuilding or repairing equipment. Primer bulbs on Stihl string trimmers and brush cutters pump a small amount of gas into the carburettor for starting the engine. The bulb should feel like it is pushing gas into the carburetor. MSI Mobo, Phenom II CPU, Win 7/64 Premium, 8GB DDR3 Ram, Chrome, Avast, Malwarebytes Re: Tecumseh primer not working [ Re: bilvihur ] #916501 Primer bulb not filling Hi, I have a Poulan WT 200 leaf blower with a brand new 530071775 carb,new fuel lines and a new fuel filter.I can't get the primer bulb to fill with fuel.I've tried with the carb attached & unattached to the engine block.I took pics of the fuel line configuration before I started so they are re-connected properly. Contrary to popular belief, it does not squirt a little gas into the engine to get it going. You can tip the snow thrower on to its nose. I've done 3 -- I've done as many as 12 and I still have to pull and pull and pull to get it started. Toro says priming three times is supposed to be enough. 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