The primer with the tube is common over here on the big box store mowers. What It Does. 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. Simply pulling on the starter rope will not draw fuel to the engine. I would start by replacing the fuel filter since there's absolutely no way to … The ball and spring will fall out. 2 years ago. I have included an image of where the line connects to the carburetor. You can look at a parts diagram for your product at [www.searspartsdirect.com]. Thank you for watching! However, in some unfortunate cases, the primer bulb gets damaged or stops working. Small perforations on the rubber could inject enough air into the fuel system to make the suction too weak. If the primer line is sticky feeling, you have to replace the line. Examine the bulb for corrosion or debris that may be interfering with the bulb's operation. Toro says priming three times is supposed to be enough. 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. It's a Toro mower. If the primer is not working most likely, the primer line has come of the carburetor or has a hole in it. PRIMER BUTTON will not work. I'm at my wit's end with this thing. ... have a 10 hp --28 in yard machines snowblower. 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. Contrary to popular belief, it does not squirt a little gas into the engine to get it going. 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. I replaced gas filter and new gas. 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. That should solve your issue as long as your lines are in good condition. Replace any worn or cracked bulbs. 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. - Answered by a verified Technician ... Primer bulb won't suck fuel. It can also mean the bulb has deteriorated and does not create pressure when the bulb is pressed. With these videos I hope you are able to fix and repair your lawnmower yourself with minimal parts, knowledge and tools. The darn thing still will not prime (no fule in the primer bulb). You should be able to see the primer line. I pulled the tank and checked the filter and that appears okay as well. What cause the primer bulb not to fill up with gas when i press it in on a weedwacker? If that has worn out, you will have the problem you're describing. It works by squirting fuel into your engine. Will a craftsman snow blower 486.24837 fit my 917.258860 garden tractor? can't get it to start as the primer bulb is not pushing the fuel to the carb. They all say it fills with fuel and then squirts it onto the carb. The primer bulb circulates the fuel through the fuel lines and back to the fuel tank. You can tip the snow thrower on to its nose. 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. 2 Responses to How Primer Bulbs Work. Pry retainer out and remove bulb from primer seat groove. Sometimes you have to replace the whole primer assembly (recommended anyway) and sometimes you can just replace that diaphragm. Get more answers from the people in your networks. You should be able to see the primer line. Get shopping advice from experts, friends and the community! 3-7 HORSEPOWER ALL BRIGGS AND STRATTON motor with a PRIMER BUTTON BULB.Music by BonzaiRod. Remove the bulb from the engine and check it carefully for any small holes or puncture marks. Check the primer bulb to make sure it is working. Relevance. Blower, lawn mower, weed eater, trimmer Metric Combination Wrench Set, Craftsman NEXTEC 12V Lithium-Ion Drill/Driver, Craftsman CM-IFMD-2 100' Medium-Duty Garden Hose. If not, install a new bulb. Ray Bobo says: July 18, 2017 at 1:02 pm. This will help in locating the parts on the product. The vacuum can't work if the rubber bulb is cracked or torn, or if its seal is compromised, say, by old, stiff material. Push primer button not working on snowblower...if I pour gas in it works but won't turn over, lines aren't broken...? Model 20017 Serial 220071311. Lawnmower PRIMING Button PROBLEM can be FIXED. Lv 7. If it is clean, look for damage to the bulb or receptacle. Was told that a new carberator was installed. Vacuum is what makes that bulb work. If the primer bulb is not working, you may need to troubleshoot it. 125b Huskvarna blower is not working. 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. How the Primer Bulb Works on a Briggs & Stratton 5 Horse Engine. The primer bulb should have some type of a in/out diaphragm under it. Gaskets. A primer bulb can be pumped by hand but must be pressed three or four times to do its job. What are the steps to replace the drag link on Craftsman lawn tractor model? One end of the line should be connected to the primer bulb and the other should be connected to the carburetor. Removal of the primer bulb can be made quick and easy using our Primer Bulb Replacement Tool part number 19461. 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. So there's only a few things that can go wrong. Without gas in the combustion chamber, the engine will not fire. Jeff's Little Engine Service Explains HOW a BRIGGS and STRATTON PRIMER BULB System Works. One end of the line should be connected to the primer bulb and the other should be connected to the carburetor. Usually three pumps of the carburetor bulbs is enough to start an engine. One of the hoses was broken leading to the carby. Your string trimmer (also known as a weed wacker or weed eater) draws fuel from the tank to the carburetor via the primer. 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. 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. I think I too have a Primer that is not working properly. If the receptacle is damaged, you will most likely have to replace the flashlight. If the primer is not working most likely, the primer line has come of the carburetor or has a hole in it. If you need further assistance, please resubmit your question. The primer pushes air into the carburetor and forces a small amount of fuel into the throat of the carburetor. Remove primer seat using a crochet hook or other type of hook. The carburetor is a part of the engine that mixes fuel and air together to make a combustion. \"George\"Copyright 2016 Jeff's Little Engine ServiceDonations are greatly appreciated and help me make vids, just click the Paypal link below. Ask Your Own Small Engine Question. When the primer won't prime, the engine won't run. if the primer base is stop up how do i check it? A primer will pump a small amount of gas into the carburetor. 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. 5 Answers. I need to adjust the speed of my snowblower. If it still does the same, the carburetor has a bad diaphragm and the inner check valve is not working. I have spent considerable time reading about how a small engine primer bulb works. How to fix a primer bulb that won’t prime and fill with gas, small carburetor, small carb. You can tip the snow thrower on to its nose. 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. Replacing all components such as gaskets and fuel lines is always recommended when rebuilding or repairing equipment. MSI Mobo, Phenom II CPU, Win 7/64 Premium, 8GB DDR3 Ram, Chrome, Avast, Malwarebytes Re: Tecumseh primer not working [ Re: bilvihur ] #916501 Another cause of the primer's filling problem could be the bulb itself. It is the easiest way to use a lawn mower, and many users swear by it. Always work safe. Answer Save. removed carb cover, confirmed fuel as far as bowl and partially drained bowl. The good news is that you don’t have to panic or run to buy a new lawn mower. It has spark - carby is clean. Your question was published, help is on its way! It is not leaking the gas anymore. 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. 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