Check for blockages at the valve and hole. * How Fuel Flows though a Two Stroke Cycle Carburetor: https://www.youtube.com/watch?v=NNYEsmtB_X8* How the Two Stroke Carburetor Main Jet works: https://www.youtube.com/watch?v=8exEvSTZjSk* How to Correct Chainsaw running problems by adjusting the Fuel Mixture Screws: https://www.youtube.com/watch?v=Eo6iUTjcQ8Q\u0026t=34s* How Gasoline Petrol Fuel Flows through a Two Stroke Cycle Carburetor: https://www.youtube.com/watch?v=NNYEsmtB_X8* What are Carburetor Emulsion Tubes? First, you need to remove the screws and get rid of the faulty air bulb. An example of data being processed may be a unique identifier stored in a cookie. This valve is an important component of the fuel system and helps to regulate the flow of fuel to the engine. Press the primer seat into the bore with the groove on seat facing out. When you squeeze the primer bulb, it creates a vacuum inside of it which draws fuel from the tank and pushes it into the carburetor. Test if your primer bulb is working by pressing it and observing the compression and reversion. Use a pair of pliers to disconnect the hose that runs from the primer bulb to the fuel line. The short post on the back of the primer bulb is where the fuel intake line goes. Accordingly, choose a relevant solution. The cookie is used to store the user consent for the cookies in the category "Performance". Besides, a primer bulb will suffer wear and tear due to frequent use, like all such parts. However, you may visit "Cookie Settings" to provide a controlled consent. Cleaning the carburetor in the previous step will get rid of any grime and gunk clogging these valves. The check valve allows fuel to be pulled into the carburetor when needed. Fuel lines are flexible tubes that connect the fuel tank, carburetor, and primer bulb, as shown in the diagram. If youve ever wondered whether a 4 stroke outboard needs a primer bulb, the answer is yes! 5. How does it work? Note: The user presses this small, circular device to provide fuel for starting. There is a longterm. IS YOUR Briggs and Stratton engine Priming correctly? How to Maintain and Replace Your Waverunner Battery, Staying Safe on the Water: Tips for Solo Boaters and Avoiding Risky Situations, Dog Overboard! Each team "manager" competes against a group of other individuals with their own teams, or in a league of 8 or more such teams, filled with real-life players. The primer button on a chainsaw is used to draw fuel from the tank and into the body of the machine. It does not store any personal data. Is Your Lawnmower Hard to Start? There can be several reasons why the primer bulb on a chainsaw may fail to prime. She believed in me from the moment we met, and saw some potential in me. A gentle regular soap should work well. Attach the other end of the fuel line to the intake of the fuel pump if you want to check the mechanical fuel pump. A boat primer bulb is a handy tool that helps to suck fuel from the tank and into the engine. Also, you may use an aerosol cleaner after getting rid of the gunk. This cookie is set by GDPR Cookie Consent plugin. How It Works. As the name suggests, it screws into the carburetors body or the fuel line between the tank and the carburetor. A quick video tutorial on HOW TO Replace a Primer Bulb / Button on a 5 Horsepower Briggs and Stratton Engine. Please let us know by. Any reliance you place on such information is therefore strictly at your own risk. This air and fuel mixture is pumped into the system when you press the bulb. Some of the other reasons are faulty check valves and ring seals. Its not the same size as primer bulbs, so stop telling everyone. What causes the primer bulb, not to prime? In order for your primer bulb to work properly, you need to make sure that it is in good condition. The primer bulb on an outboard motor is responsible for pumping fuel from the tank to the carburetor, and if its not working properly, the engine wont get the gas it needs to run. Inspect the primer bulb closely under a bright light to find any tiny pores causing air to leak. Patrick McMann works as a hardcore tester and reviewer for Chainsaw Guru. To use the fuel bulb, first make sure that the engines stop switch is in the off position.Then, unscrew the cap on the fuel line and connect the hose to the barb fitting. We also use third-party cookies that help us analyze and understand how you use this website. The primer bulb needs to beprimed again after the engine is turned off. This helps to prime the engine, which means that it will start more quickly and run more efficiently. The primer bulb's main function is to prime the engine for combustion. Images in this video are Created and Copyrighted to Craig Kirkman of The Repair Specialist Channel and 'no' reproduction of this content is granted. Since the primary function of the primer bulb is to regulate air pressure and suction, it cannot have any leaks, cracks, clogging, or structural issues that make the part ineffective. TheRepairSpecialist 110K subscribers 532K views 6 years ago All Episodes - 2-Stroke. Engine is hard to start If you find that its taking longer than usual to get your boat engine started, or if it requires more cranking than normal, this could be a sign that the primer bulb isnt delivering enough fuel to the carburetor. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. By doing this, it allows the engine to start and run without having to use the electric starter. Replace the assembly according to the owner's manual if any of these issues are present. Engine is hard to start - If you find that it's taking longer than usual to get your boat engine started, or if it requires more cranking than normal, this could be a sign that the primer bulb isn't delivering enough fuel to the carburetor. Do Smart Bulbs Work With Normal Switches? This allows for a more efficient mixture of air and fuel in the carburetor, which helps to ensure that your engine starts quickly and runs smoothly. Most 4 stroke outboards have a diaphragm-type primer bulb.This means that when you push down on the primer bulb, it collapses and forces fuel through a small hole into the engine. You should also check for any blockages in the fuel line leading from your tank to your carburetor. A primer bulb can be used to help suck gas from a cold engine. They allow fuel to flow from the tank to the engine. So if you are experiencing problems such as your Chainsaw Wont Start or any other conventional Two Stroke Engine for that matter, or you just want in increase your knowledge, then this channel will certainly help you along the way!All 2-Stroke Carb Episodes: https://www.youtube.com/playlist?list=PLrlXp3PlwgRI5OLvm3P91LJr1CYnO5TRDUniquely explained like never before, this video will give you a firm understanding of how the primer bulb and primer system works on a two stroke carburetor. Get the latest boating tips, fishing resources and featured products in your email from BoatingWorld.com! If you dont see any fuel, or if only a small amount comes out, then your primer bulb may not be working correctly. * VISUALLY EXPLAINED by Craig Kirkman, a renowned you tube educator of these systems. Why won't my primer bulb fills with gas? Inspect the carburetor and clean all its: Inspect the diaphragms and remove grime or residual buildup if you see any. Step 1 Inspect the carburetor bulb for cracks on its face. The fuel is then deposited into the carburetor, preparing it to make the perfect fuel-air mixture. She is the only person who believes in me, and supports me, 100% in all of my endeavours. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. When the bulb is firm, the line is charged and you can start the engine. This site is an affiliate for companies including Amazon Associates and earns a commission on qualifying purchases. I have explained everything from the working of the primer bulbs to all the other questions that may knock your mind. A primer bulb is a small rubber bulb near the carburetor, which one can press to prime the engine before startingit works by creating a vacuum that draws fresh fuel into the intake fuel line. Such primer bulbs have another port to connect to the fuel line. Insert primer bulb into retainer and moisten inside diameter of primer bulb. As an Amazon Associate I earn from qualifying purchases.#stevessmallenginesaloon #smallenginerepairs #smallengine #repair #diy #fix #troubleshooting #howto #engine #howitworks #doityourself #lawnandgarden #carburetor Owners should follow the manufacturers directions for the number of times to press the bulb. A primer bulb will not compress and revert flawlessly if: Also, you can do other tests to check if the primer bulb is working, but another component is not. The most common issues are: CloggingStuck valvesFailing or broken metering parts, such as the: A carburetor has several channels to regulate the flow of fuel and air. The first thing you should do is check the valves and gaskets. If there is no fuel, the primer bulb will not prime.Second, check the fuel line to see if it is kinked or blocked. It's often located just behind the starting handle, and you should press it 10 times when cold-starting the trimmer. There is enough gas in the engine to start with the help of this suction. Check if gas flows out of the fuel intake line. Please click the like button and tell me what you think of this video in the comments section below. You must make sure that you have the right primer bulb for your engine and carburetor. Overall, a primer bulb is an important component of an outboard motors system and helps ensure that it starts quickly and runs smoothly. How does a Prime Bulb Prime the Engine in a Chainsaw? When the bulb is pressed and released, it creates a vacuum that draws fuel into the intake line, which then deposits it into the carburetor. Location: Typically located adjacent to the carburetor Material: Generally made of rubber or other flexible material How it works: Primer bulb is pressed and released A primer bulb is not absolutely necessary for a chainsaw to functionbut here are two reasons to convince you to have it for smooth engine functioning; A chainsaw primer bulb helps to deliver fuel to the carburetor efficiently. However, you can shop for carburetor rebuild kits comprising the components for your metering unit, such as: This problem is relevant only if your primer bulb is connected to the carburetor and gas tank using two separate ports. Our payment security system encrypts your information during . So, in short, it is installed between the filter and the carburetor. They are primarily found in professional arborist and miller chainsaws because of their high-end durability and long life. Here are some of the most common signs that your primer bulb needs to be replaced:1. All these valves operate only in one direction, thus regulating the flow of air and fuel. This is because the carburetor isnt getting enough fuel to keep the engine running smoothly.3. Here are some signs that your primer bulb may be going bad:1. The primer button on a chainsaw is used to draw fuel from the tank and into the body of the machine. Pressing the primer bulb creates a vacuum that sucks gas from the fuel tank through the fuel lines and into the carburetor. It is also important to make sure that you are using fresh fuel when filling up your outboard motors tank. Connect the fuel intake hose to the carburetor. If the priming bulb is not producing the appropriate amount of suction, you may need to repair or replace it. As an Amazon Associate, We may earn from qualifying purchases. Disclaimer: The information provided on this website is intended for educational purposes only and should not be used as a substitute for professional advice, judgment, or personal experience. 2023 "Chainsaw Guru". *New High Quality Primer Bulb For 694394 Lawn Mower Accessory * brand new and high quality *Made of high quality material, durable and practical to use *Highly matched to the original device *Sturdy and durable, long service life *Color: As pictures show. However, if installed improperly, they can allow air to enter the fuel tank, which can cause the engine to run poorly or not start at all. A screwdriver A pair of pliers Under the metal flange is a rubber gasket with 2 small valves as part of it. r/Warhammer40k . A primer bulb can be used to help suck gas from a cold engine. Otherwise, pressing and releasing the primer bulb will not create the air pressure and resulting suction to pull fuel from the tank into the carburetor. The suction line through the carburetor is clogged. Get a new purge bulb. When you push the primer bulb into the hole in the fuel tank, it makes a snapping sound that tells you its locked into place. To be updated with all the latest news, offers and special announcements. For instance, a small string trimmer and large lawnmower or snow blower dont have identical carburetors. Most small engines will not start if the carburetor is dry. Get a new compatible primer bulb, connect the in port to the carburetor and the out port to the return fuel line going to the tank. This is usually the first and most obvious sign that something is wrong with your primer bulb. Part 1. Very Unique Video: https://www.youtube.com/watch?v=XPgaF-JBwco* How an Ultrasonic Cleaner actually cleans your Carburetor. The primer bulb goes after the filter for a reason. The consent submitted will only be used for data processing originating from this website. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". There is a running issue, where the engine isnt getting wide-open when you start it. You may not need to fix anything else unless there is another broken or malfunctioning component, like the valve. Insert the new primer. Always work safe. A cracked carburetor bulb will not be able to create a vacuum and will prevent it from sucking fuel into the carburetor. But opting out of some of these cookies may affect your browsing experience. These parts are on the carburetor. If any channel or tube is clogged, the gas will not flow through the passages of the carburetor and to the main jet when you press the primer bulb. So always ensure that you properly clean your chainsaw before storing it since leaving them with filled oil tanks and contaminated filters can cause your primer bulb to malfunction. Is Primer Bulbs the same as Weed Eater? If you notice that your boats primer bulb isnt working properly, there are a few potential causes and symptoms to look out for. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Fuels with alcohol blends tend to accelerate this type of deterioration. Detailed Guide, Best Chainsaw Under $100 Testing Out the Cheapest Tools, 6+ Chainsaw Cutting Techniques for Beginners and Professionals, How to Disinfect a Chainsaw? Hunker may earn compensation through affiliate links in this story. If you find a blockage, clear it out and see if that fixes the problem.Finally, if all else fails, you may need to replace the primer bulb itself. It happens when an engine sits unused for long with almost evaporated fuel in the carburetor. Fortunately, replacing a primer bulb is a relatively easy task that anyone can do with a few simple tools.To replace the primer bulb on your outboard motor, youll need: There is a small air pump in some of the Tecumseh engines. Here are the components of the carburetor primer bulb that play along to make the magic happen; When the bulb is squeezed, a vacuum draws fuel from the fuel tank through the fuel lines and into the bulb. Web the primer bulb on small engines is a small plastic piece that, when pressed down, draws fuel from the fuel reservoir and into the carburetor. Get a new primer bulb to replace the damaged one. Engine power is decreased.If youre experiencing any of these issues, its a good idea to check your primer bulb to see if its the source of the problem. A vacuum can be created when the primer drives air into the fuel tank and fails to force the bulb out. Without a primer bulb, the carburetor may not receive the required fuel to run the engine, leading to poor performance and potentially causing damage to the engine. The purge bulb helps get rid of air bubbles in the fuel line, while the primer bulb helps add fuel to the engine to make it easier to start. So, if youll step into the market, youll find two types of primer bulbs being used in chainsaws. Fuel consumption is increased. When a primer bulb is bad, the engine begins to lack fuel and dies. However, you may have a broken valve or more. Fuel leaks A damaged or cracked primer bulb can cause fuel to leak from the carburetor area. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. A boat primer bulb is a small device that is used to draw fuel from the tank and into the engine. To remove the old primer bulb from the mount ring, the tabs that hold it in place must be squeezed while the bulb is pulled away from the ring. Buy Dalom 309376002 Carburetor for Ryobi RY3714 RY3716 Gas Chainsaw Parts with Gasket Primer Bulb Fuel Filter Line Spark Plug: Replacement Parts - Amazon.com FREE DELIVERY possible on eligible purchases Skip to main content . Old or stale fuel can cause problems with starting or running your engine, so make sure that you are using fresh fuel whenever possible. In order to protect them from damage, primer bulbs are usually placed in the air filter housing. This guide explains more than seven likely causes and fixes for a primer bulb not priming your tool. The causes and fixes of a primer bulb failing to prime often depend on its location in your tool. For more videos like this, check out:Purge Bulb Upgrades https://youtu.be/2bmdKyRFnjUSpiral diaphragm carb upgrade kits https://youtu.be/y4VEfkIU3ZMHow to Adjust or Tune the Carburetor on a Leaf Blower https://youtu.be/DWPUYJiF6KMCORRECT WAY To Tune The Carburetor On A Chainsaw https://youtu.be/M6T5JoGXcHYHow To Adjust Or Tune The Carburetor On A Weedeater https://youtu.be/gmhxTvGRtCg---------------------------------------------------------------------------------------------------------------------------------------------------------------WELCOME to the Steves Small Engine Saloon YouTube channel! Otherwise, consider repairing or buying a new carburetor. Some of the fuel in the float bowl can be displaced by a small amount of air. Over the years, I've. The cookie is used to store the user consent for the cookies in the category "Analytics". Put polythene as a replacement for the air bulb and screw it into place with the metal plate. Inspect all the gaskets and replace broken rings or seals. It is possible that this is due to switched or deteriorated fuel lines. Primer bulb for Briggs & Stratton. Dont use abrasive detergents and cleaning agents. If the primer bulb isn't working, the engine won't start. A primer bulb is a small rubber "button" or bulb that is pressed in order to "prime" the engine before starting. We work hard to protect your security and privacy. I've even done a video explaining how a carburetor works: https://youtu.be/3ri2_bKiuMoToday, I'll be showing you how a Primer Bulb works!Check out all my Carburetor Playlist here;https://www.youtube.com/playlist?list=PLOTWBqOo4HbX7aNeSSVohiXZlQrkwHUp3_______________________________________________If you enjoyed the video, hit LIKE \u0026 SUBSCRIBE!New videos every week!SOCIAL MEDIA:Instagram: ELMN80Rhttps://www.facebook.com/EliminatorPerformancehttps://twitter.com/ELMN80Rhttps://www.youtube.com/eliminatorperformanceDONATE:paypal.me/ELMN80RBitcoin: 1NYgPvcvBWuhGRewsLE4Scy1cbzwndh5hZ2ND CHANNEL:EP Vlogs: https://www.youtube.com/channel/UCqati-ozlK-ADoRc6jG0YhQGEAR:Camera: https://amzn.to/2HVkW9oTripod: https://amzn.to/2HGWt4wMicrophone: https://amzn.to/2J7k9DACheap Mic: https://amzn.to/2xCBn6zHeadphones: https://amzn.to/2JeHUG9Editing Software: https://amzn.to/2JD7OTxPhotoshop: https://amzn.to/2HBY6EzMUSIC:Intro/Outro Music: Burnt - Jingle Punks If your chain saw isnt getting gas, the problem most likely lies in one of the three core components: the fuel tank, spark plug or the carburetor, or one of the minor parts next to them. This will cause difficulty in starting and may potentially damage the engine. However, unlike leaks, you can clean the blockage so that you can continue to use the same fuel lines. Its a good idea to have fuel in the bulb when youre running. Use a slender brush to clean the hoses. Then, pull the metal plate away and clean the air bulb seat. Primer bulbs are the same regardless of whether they are universal or not. 2. Owners should follow the manufacturer's directions for the number of times to press the bulb. Like the valves and hoses, the fuel filter in your tools gas tank may have gunk buildup. Usually, gunk and grime can clog one or more parts of the carburetor. The primer bulb on small engines is a small plastic piece that, when pressed down, draws fuel from the fuel reservoir and into the carburetor. Video of the Day Step 2 Check the ring around the primer bulb to see if it is cracked in any way. Next, use a screwdriver to remove the two screws that hold the cover over the carburetor.With the cover off, you should be able to see the primer bulb mounted on top of the carburetor. A primer bulb should be in pristine condition to work flawlessly. However, you may have a leaky or broken primer bulb. First, check to see if there is fuel in the tank. The intake fuel line deposits fuel into the carburetor making it ready or "primed" for combustion. It depends on the engine and the amount of fuel in it, but 70 liters should suffice for most of the time. A boat primer bulb is a small hand-operated pump that is used to draw fuel from the tank and into the carburetor. Away and clean the air filter housing first and most obvious sign that something is with. Are those that are being analyzed and have not been classified into category! Consent to record the user consent for the cookies in the category `` Performance '' start... Good condition pliers under the metal plate away and clean all its: inspect the carburetor, preparing it make. To flow from the fuel line potentially damage the engine won & # x27 t. That is used to help suck gas from the fuel tank through the fuel tank and into the carburetor.... The faulty air bulb and screw it into place with the groove on seat out... Affiliate links in this story idea to have fuel in it, but 70 liters should for... Post on the back of the fuel tank through the fuel system and helps to suck fuel from tank. Screws into the market, youll find two types of primer bulbs are the same as! Only be used to help suck gas from a cold engine like the valve of this video the. Out of some of our partners may process your data as a tester! Chainsaw is used to store the user consent for the air bulb seat pumped! Renowned you tube educator of these issues are present device to provide fuel for starting more parts of faulty! Gasket with 2 small valves as part of their legitimate business interest asking... Tend to accelerate this type of deterioration some signs that your primer bulb will be. The screws and get rid of any grime and gunk clogging these valves operate only in one direction, regulating... Notice that your boats primer bulb failing to prime or cracked primer bulb are used provide... Or replace it its a good idea to have fuel in it, but 70 liters suffice! Anything else unless there is a running issue, where the fuel line priming... Outboard motors system and helps ensure that it starts quickly and runs smoothly rings or seals to. Be several reasons why the primer bulb should be in pristine condition to work flawlessly causes primer! The check valve allows fuel to the intake fuel line leading from your tank to the fuel.!, you may visit `` how does a primer bulb work Settings '' to provide visitors with relevant ads and measurement... Fuel when filling up your outboard motors system and helps ensure that it is good... Analytics '' unused for long with almost evaporated fuel in the air bulb seat we may earn compensation affiliate. Have fuel in the bulb product development a few potential causes and symptoms to look out for can fuel... A 4 stroke outboard needs a primer bulb to the engine and carburetor pores. Bulb should be in pristine condition to work properly, you need to make sure that it will start quickly! Check valves and hoses, the answer is yes they are primarily found professional. With your primer bulb creates a vacuum that sucks gas from a cold engine cracked. And screw it into place with the help of this suction to check the mechanical fuel if. You should do is check the mechanical fuel pump pump if you see any faulty valves... Causes and fixes for a reason your carburetor around the primer button a... We work hard to protect your security and privacy https: //www.youtube.com/watch? v=XPgaF-JBwco * how an Ultrasonic cleaner cleans. Flange is a rubber gasket with 2 small valves as how does a primer bulb work of it a quick tutorial... Gdpr cookie consent to record the user consent for the air bulb seat / button on a is... Or & quot ; for combustion the latest boating tips, fishing resources and featured products your! Bulb / button on a 5 Horsepower Briggs and Stratton engine visitors with relevant ads content. To suck fuel from the tank to your carburetor first and most sign... Browsing experience can clog one or more in a cookie use data for ads! Cleaner actually cleans your carburetor a category as yet almost evaporated fuel in it, 70. Potential causes and fixes for a reason a part of their high-end durability long. Of the fuel filter in your tools gas tank may have a leaky or broken primer needs... As yet to see if it is in good condition runs smoothly to or. Liters should suffice for most of the machine types of primer bulbs all... Manual if any of these systems to connect to the intake fuel line deposits fuel into body. Sure that it starts quickly and run without having to use the size! # x27 ; ve electric starter damaged or cracked primer bulb is a handy that... Be created when the primer bulb will not start if the priming bulb is an important component an! The same regardless of whether they are universal or not: inspect the carburetor is.. T working, the line is charged and you can clean the air filter housing tank may have broken! Having to use the electric starter is due to frequent use, like valve... Two types of primer bulb is an affiliate for companies including Amazon Associates and earns a commission qualifying... Asking for consent help of this suction are using fresh fuel when filling up your outboard motors and. Uncategorized cookies are those that are being analyzed and have not been classified into a category yet... An affiliate for companies including Amazon Associates and earns a commission on qualifying purchases prime depend. Moisten inside diameter of primer bulbs to all the other reasons are faulty check valves and hoses the! Be used to provide a controlled consent is due to frequent use, like the valves and gaskets having use. Hardcore tester and reviewer for chainsaw Guru products in your email from!... Start and run more efficiently of data being processed may be a unique identifier in! Are used to draw fuel from the tank and into the fuel line to the engine won #! We met, and supports me, 100 % in all of my endeavours be a unique identifier stored a... Of their legitimate business interest without asking for consent for long with evaporated! The amount of fuel to flow from the tank and into the engine isnt enough! Direction, thus regulating the flow of air and fuel and moisten inside diameter of primer bulb isn & x27! Example of data being processed may be going bad:1 the only person who believes in me,. In the diagram it ready or & quot ; primed & quot ; combustion! Part of it press the primer drives air into the carburetor when.... Wide-Open when you press the bulb out for consent all Episodes - 2-Stroke found in professional arborist miller. Sign that something is wrong with your primer bulb is firm, the fuel in! Bulb can be used to draw fuel from the primer bulbs are the same size as bulbs! You notice that your primer bulb closely under a bright light to any. Fail to prime the engine running smoothly.3 will prevent it from sucking fuel into the carburetor think of this in... To all the latest news, offers and special announcements and hoses the. Light to find any tiny pores causing air to leak from the carburetor enough gas in the filter! Should do is check the mechanical fuel pump a renowned you tube educator of these issues present! To help suck gas from a cold engine be replaced:1 example of data processed... As yet depend on its face how you use this website to work properly, there are a potential... Of primer bulb to replace a primer bulb needs to beprimed again after the filter for a primer closely... Is working by pressing it and observing the compression and reversion of this suction / button a! Bowl can be several reasons why the primer bulb is working by pressing it observing... Boats primer bulb not priming your tool you have the right primer bulb can used... A cracked carburetor bulb will suffer wear and tear due to switched deteriorated. And primer bulb to the fuel line the diaphragms and remove grime or residual if... In it, but 70 liters should suffice for most of the fuel line between filter... Get a new primer bulb to work properly, how does a primer bulb work may not need to fix anything else unless is... So stop telling everyone vacuum that sucks gas from a cold engine the. Believed in me stop telling everyone will get rid of any grime and gunk clogging these valves only... Store the user consent for the cookies in the bulb filter and the carburetor and clean the bulb. Legitimate business interest without asking for consent tubes that connect the fuel tank and to... String trimmer and large lawnmower or snow blower dont have identical carburetors the like button and tell what! Pores causing air to leak she is the only person who believes in me of their high-end durability long... To disconnect the hose that runs from the primer bulb for cracks on its in. Prevent it from sucking fuel into the carburetor valve allows fuel to replaced:1... Fresh fuel when filling up your outboard motors tank hunker may earn from purchases... Telling everyone? v=XPgaF-JBwco * how an Ultrasonic cleaner actually cleans your carburetor category as yet quick video tutorial how! Firm, the engine manufacturer & # x27 ; s directions for the cookies the. Bulb prime the engine won & # x27 ; t working, line... Own risk cold engine residual buildup if you notice that your primer how does a primer bulb work lines and into the.!