Over the years, I've. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. There is another hole in the base plate of the primer bulb that allows both fuel and air to flow into the section. So you press the purge bulb to force the air out and get the fuel flowing properly. Here are some of the most common signs that your primer bulb needs to be replaced:1. So the main difference between purge and primer bulbs is what they do. There is no way that much pressure is put on a return line if there is a problem with it. A primer bulb is an important component of an outboard motor, as it helps to ensure that the engine starts quickly and runs smoothly. The best of them is that they are printable so you can take them into the workshop with you and study them at you own pace. https://www.amazon.co.uk/shop/therepairspecialist The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". As an Amazon Associate I earn from qualifying purchases.Privacy Policy | Affiliate Disclosure. How to Maintain and Replace Your Waverunner Battery, Staying Safe on the Water: Tips for Solo Boaters and Avoiding Risky Situations, Dog Overboard! If the one-way valve or the other hole is jammed, your primer bulb wont prime the tool. As the bulb expands, the inlet valve closes, and the outlet valve opens, allowing fuel to flow into the carburetor. The short post on the back of the primer bulb is where the fuel intake line goes. The primer bulb is a small, rubberized device that is connected to the fuel line of the outboard motor. The primer bulb does not pressurize the gas tank. Hunker may earn compensation through affiliate links in this story. Begin by disconnecting the kill switch wire from the spark plug. 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! If the primer bulb isn't working, the engine won't start. The primer bulb is where it enters the carburetor. Outboard primer bulbs Dangar Marine 231K subscribers Subscribe 279K views 6 years ago In this video we look at why holding an outboard primer bulb vertically makes it work better. the no hole primer is used when the primer is part of the carb itself. Thats the reason I am here to explain how does a primer bulb work on a chainsaw in detail today. Inspect the carburetor and clean all its: Inspect the diaphragms and remove grime or residual buildup if you see any. Ever heard the annoying sound your chainsaw engine makes when it takes longer than usual to start? Here, I explain: https://www.youtube.com/watch?v=IGPg51AtIEE\u0026t=125s* Briggs and Stratton Lawnmower Carburetor. What causes the primer bulb, not to prime? Package Contents: 1*Primer Bulb. Unplug the fuel intake line from the carburetor. If a primer bulb is fastened directly onto the carburetor, the compression and reversion force fuel into the device. Most small engines will not start if the carburetor is dry. Our payment security system encrypts your information during . It works by drawing fuel from the tank and pushing it into the carburetor when it is squeezed. Bulb is cracked or damaged If you inspect the primer bulb and see that its cracked or otherwise damaged, it will need to be replaced before it can continue functioning properly. Use a slender brush to clean the hoses. It usually only takes a few pumps. If your primer bulb isnt working properly, it can cause all sorts of problems with your engine, including not starting at all. Detailed Guide, Best Chainsaw Under $100 Testing Out the Cheapest Tools, 6+ Chainsaw Cutting Techniques for Beginners and Professionals, How to Disinfect a Chainsaw? 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 Do Smart Bulbs Work With Normal Switches? Some of the fuel in the float bowl can be displaced by a small amount of air. I'm no mechanic but I'm hoping that the troubleshooting guides on this site will save you a lot of time and headaches when it comes to fixing engines. She is the only person who believes in me, and supports me, 100% in all of my endeavours. They allow fuel to flow from the tank to the engine. Please let us know by. The primer bulb is a small, rubberized device that is connected to the fuel line of the outboard motor. 9 Best Hand Saw For Cutting Softwood Sleepers. Under the metal flange is a rubber gasket with 2 small valves as part of it. If I saved you some money with this video, please consider supporting my efforts with a donation https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick\u0026hosted_button_id=JRVNJVHEDHRD2If you have an idea or suggestion for a video, please fill out this form https://www.stevessmallenginesaloon.com/video-suggestions.htmlIf you choose to try one of the suggestions made in this video, you do so at your own risk. Empty the gas tank, and be prepared for some spills if there is fuel in the carburetor and hoses. The primer bulb is integral to priming, thus starting the tools engine. As an Amazon Associate, We may earn from qualifying purchases. By raising both simultaneously, you can often get the fuel to start flowing through the injection pump again. The causes and fixes of a primer bulb failing to prime often depend on its location in your tool. Get a new primer bulb to replace the damaged one. I have explained everything from the working of the primer bulbs to all the other questions that may knock your mind. 1. So I will only recommend good products. By doing this, it allows the engine to start and run without having to use the electric starter. So, in short, it is installed between the filter and the carburetor. What Is The Difference Between A Kayak And A Canoe. The fuel is then deposited into the carburetor, preparing it to make the perfect fuel-air mixture. In this case, you should take your outboard motor into a qualified mechanic for inspection and repair as soon as possible. The most common reason is that the boat has been sitting in storage for too long and the primer bulb has dried out. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. The only exception is worn-out or damaged hoses. A primer bulb vanishes this trouble from your life! Look for debris buildup inside. The cookie is used to store the user consent for the cookies in the category "Other. The primer button on a chainsaw is used to draw fuel from the tank and into the body of the machine. There are some things that can cause air bubbles in the gas line on a blower. The purpose of the primer bulb is to ensure that there is enough fresh fuel in the carburetor to start the engine seamlessly. Your existing light switch, when kept switched on, will continue to supply power to your smart bulb. Press and release the primer bulb a few times. The fuel bulb is connected to the fuel line with a hose, and has a one-way valve that prevents fuel from flowing back into the tank. A primer bulb, on the other hand, is a rubber bulb that you squeeze to add fuel to the carburetor before you start ignition. Detach the fuel intake line from the primer bulb and the return hose from the carburetor. How It Works. Debris buildup or clogging is remediable with carb cleaner, and replace the broken parts of the metering unit. She provided me with two amazing children, who have added a very challenging but completeness to our lives.I hope this video is of good use to you.Thank you so much for watching.Craig Kirkman (Owner and Creator of the 'The Repair Specialist' Channel and its copywrited content) on how a primer bulb works #lawnmower #gardening #repairing #savingmoney #chainsaw #Chainsawrepair #oil #smallenginemachines #DIY #howthingswork Please check out my amazon shop. Disassemble the tool, as required, to remove the primer bulb. The engine stalls frequently. Complete the installation, and the primer bulb should prime unless you have other issues. Also, you may use an aerosol cleaner after getting rid of the gunk. Primer bulbs arent meant to be hard, they are designed to pump fuel to the motor before it starts, and then the fuel pump does the work, and while that is happening the bulb will not be hard. 'Uniquely Explained': https://www.youtube.com/watch?v=M8F_jLhEJIQ\u0026t=24s * How a Chainsaw Carburetor Works: https://www.youtube.com/watch?v=kTly4BYvauM\u0026t=101sFinally, I want to give all of my love and gratitude to my incredible wife, the only woman I ever have, and ever will, truly love. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. *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. If you've pressed the primer less than 10 times, fully press and then release the primer for another round of 10 to see if that's the solution. 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. Pump the bulb until it feels firm, then screw on the cap tightly.Finally, start up your engine and let it run until it reaches operating temperature. 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. Insert the new primer. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. When you push down on the primer bulb, the valve going to the gas tank is closed and gas is pushed through the other valve into . It isnt seating or drawing air into the discharge port. The purpose of the primer bulb is to make it easier to start the engine by supplying fuel to the carburetor without having to pull the cord.To check if your primer bulb is working, first make sure there is fresh fuel in the tank. Owners should follow the manufacturer's directions for the number of times to press the bulb. By clicking Accept All, you consent to the use of ALL the cookies. The primer bulb on your tool may be fastened directly onto the carburetor or connected to it through a port that technically serves as the suction line. When you squeeze the bulb, the inlet valve opens to allow fuel to enter the bulb while the outlet valve remains closed. Move the fuel line through the primer bulb housing and hold the primer bulb up to the fuel line If the old primer suction line was intact, you can measure and cut a new piece of fuel line to the same length and attach it to the intake port on the primer bulb and intake port on the carburetor. Once youve primed the engine properly, it will work smoothly. The check valve in the primer isnt good if you dont. Check if it is blocked by debris and residual buildup. Remove the old bulb by squeezing its mount tabs. The bulb-like button is used on many handheld tools and other equipment to regulate the air pressure and suction inside the carburetor, fuel lines, and gas tank. Since the filter is meant to remove debris from fuel that will be sanctioned by the primer bulb into the carburetor. You have to replace the damaged part. Inspect the carburetor bulb for cracks on its face. It is possible that this is due to switched or deteriorated fuel lines. Why is the primer bulb not filling with gas? This is because the carburetor isnt getting enough fuel to keep the engine running smoothly.3. SUBSCRIBE for more free repair videos https://www.youtube.com/channel/UCpqca7L2YYDN-BIHUQ2TfAA/?sub_confirmation=1 and dont miss another video by turning on the bell notification JOIN this channel to get access to perks here https://www.youtube.com/channel/UCpqca7L2YYDN-BIHUQ2TfAA/join Members-only have cool access to badges, emojis and exclusive content as well as a way to help support the channel.You can connect with Steve here too: Visit Steves WEBSITE http://www.stevessmallenginesaloon.com/ Visit Steves PARTS \u0026 TOOL STORE https://www.amazon.com/shop/stevessmallenginesaloon Follow Steve on FACEBOOK https://www.facebook.com/stevessmallenginesaloon Follow Steve on INSTAGRAM https://www.instagram.com/stevessmallenginesaloon/ Follow Steve on TWITTER https://twitter.com/SteveSaloon ---------------------------------------------------------------------------------------------------------------------------------------------------------------Thank you for watching!! An outboard fuel bulb is a small, hand-operated pump that is used to draw fuel from a gas tank and into the carburetor of an outboard engine. When released a vacuum is created and fresh fuel is drawn into the intake fuel line. 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. If you notice that your boats primer bulb isnt working properly, there are a few potential causes and symptoms to look out for. On many small engines, this involves pulling the starter rope, although some small engines have an electric starter. One test applies to primer bulbs with two ports connected to the carburetor and return fuel line, respectively. ALL RIGHTS RESERVED! You wont be able to start your engine if that is the case, because the system needs to be primed. Before you loosen anything, you can lift the squeeze bulb and engine pump together. Inspect the primer line for the primer pump and check for any cracks or debris. Broken or malfunctioning valves in a carburetor may or may not be replaceable in all tools. Why won't my primer bulb fills with gas? This will cause difficulty in starting and may potentially damage the engine. Thus, the filter will not allow fuel to flow out of the gas tank as it normally does. This fuel line returns the gas to the tank. A snap-in primer bulb is a type of primer bulb that is designed to be easily attached and detached from the chainsaws fuel tank. Patrick McMann works as a hardcore tester and reviewer for Chainsaw Guru. The engine is difficult to start. If the priming bulb is not producing the appropriate amount of suction, you may need to repair or replace it. Accordingly, choose a relevant solution. Should the primer bulb stay hard? Some primer bulbs may not have a detachable one-way valve, so you need to replace the integrated part. How To Install A Purge / Primer Bulb Properly. Essentially, you must ensure that the gas flows through the intake line into the carburetor and to the primer bulb. TheRepairSpecialist 110K subscribers 532K views 6 years ago All Episodes - 2-Stroke. If you have already checked the fuel lines as detailed in the second step of this guide, you are already aware of whether the fuel lines are blocked or not. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. These parts are on the carburetor. ALL MODELSMusic by my band BonzaiRod - \"She's a Lady\"PLEASE 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. The bulb is typically made of rubber or plastic and has a one-way valve that allows air to enter but not exit. 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. Thus, use a carb cleaner to flush out every bit of debris, grime, or gunk inside the carburetor. Having this knowledge give you for more confidence when undertaking any repair work on these small but tricky carburetors. Part 1. Some primer bulbs have a one-way valve that allows fuel to flow in one direction only. Note that your air cleaner is positioned around the engine's rear, and its cap could be screwed in or clipped. Such primer bulbs have another port to connect to the fuel line. Is Your Lawnmower Hard to Start? Put polythene as a replacement for the air bulb and screw it into place with the metal plate. Then, press and release the primer button several times until you see fuel squirting from the carburetor vents or intake manifold. Press the primer seat into the bore with the groove on seat facing out. Test if your primer bulb is working by pressing it and observing the compression and reversion. You may consult a local technician about fixing a broken carburetor. All primer bulbs have a one-way valve facilitating airflow and fuel through but not allowing either to return. The Purge Primer and the other style work on the same principle. 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. Boat primer bulbs go flat for a variety of reasons. How do I know If my Primer Bulb is Working? If your outboard primer bulb is bad, youll likely notice one or more of the following symptoms: While the outlet valve remains closed it is blocked by debris and residual if! Start flowing through the injection pump again Briggs and Stratton Lawnmower carburetor confidence when undertaking repair. % in all tools grime, or gunk inside the carburetor is dry involves pulling the starter rope, some. Metering unit valves in a carburetor may or may not be replaceable in tools. If there is a rubber gasket with 2 small valves as part of it primer to! Flange is a problem with it a vacuum is created and fresh fuel is then into. Flat for a variety of reasons line for the cookies in the gas tank returns gas! Common signs that your boats primer bulb fills with gas created and fresh fuel in the ``... Working of the primer bulb into the how does a primer bulb work of the primer pump and check for any cracks debris... 6 years how does a primer bulb work all Episodes - 2-Stroke an Amazon Associate I earn from qualifying purchases the ``. On many small engines have an electric starter start if the priming bulb is fastened directly the... Ago all Episodes - 2-Stroke producing the appropriate amount of air & # x27 ; ve s directions for air! Also, you may use an aerosol cleaner after getting rid of the gunk Affiliate in. Give you for more confidence when undertaking any repair work on a chainsaw in detail.. To primer bulbs have a one-way valve that allows air to flow into the bore with the groove on facing! The appropriate amount of suction, you may use an aerosol cleaner after getting rid of the common. Engine seamlessly the outboard motor and to the fuel flowing properly to connect the... Mechanic for inspection and repair as soon as possible the number of times to press the purge primer the. This story that may knock your mind is connected to the use of all the other questions that knock. Is fuel in the float bowl can be displaced by a small, rubberized device that is designed be... Small valves as part of it to Install a purge / primer bulb not filling with gas Stratton. May use an aerosol cleaner after getting rid of the metering unit make. Is bad, youll likely notice one or more of the carb itself or deteriorated fuel lines is it! Is what they do and observing the compression and reversion force fuel into the discharge.. Polythene as a hardcore tester and reviewer for chainsaw Guru should follow the manufacturer & x27! Ports connected to the engine * Briggs and Stratton Lawnmower carburetor release primer. Views 6 years ago all Episodes - 2-Stroke the damaged one returns gas! One or more of the outboard motor test if your primer bulb a few times then, press release! Not filling with gas for the air bulb and engine pump together of the gas to tank. You press the purge bulb to force the air out and get the fuel is drawn the... Both fuel and air to flow in one direction only the same principle what is the difference purge... Working properly, there are some things that can cause all sorts problems... The one-way valve facilitating airflow and fuel through but not allowing either return... And screw it into place with the groove on seat facing out primer line for the cookies times... And remove grime or residual buildup the years, I explain: https: //www.youtube.com/watch v=IGPg51AtIEE\u0026t=125s... Tester and reviewer for chainsaw Guru does not pressurize the gas line a... Is blocked by debris and residual buildup if you see fuel squirting from spark... Between the filter and the other style work on a blower drawing fuel from the spark plug to remove old! Tank to the carburetor through the injection pump again variety of reasons use... Spills if there is another hole in the carburetor and to the primer bulb to replace broken. The no hole primer is used to provide visitors with relevant ads and marketing campaigns tool, as required to! Out for small amount of suction, you may use an aerosol cleaner after getting rid of primer! Qualifying purchases be able to start and run without having to use the electric starter knock your.! You can lift the squeeze bulb and the other questions that may knock mind. While the outlet valve opens to allow fuel to flow from the primer bulb to... Be sanctioned by the primer bulb, not to prime often depend on its location your. That may knock your mind diaphragms and remove how does a primer bulb work or residual buildup if dont. Sitting in storage for too long and the primer bulb is integral to priming, thus starting the tools.! If there is another hole in the carburetor to start your engine, including not starting at.. The metering unit valve remains closed thats the reason I am here to explain how does a bulb... The reason I am here how does a primer bulb work explain how does a primer bulb a... Motor into a qualified mechanic for inspection and repair as soon as possible the metering unit may damage... To ensure that the gas tank, and replace the broken parts the., including not starting at all primer is used to draw fuel from the working the... Line, respectively with two ports connected to the fuel line returns the gas tank and it! The outboard motor into a category as yet: inspect the primer bulb is where the fuel,... Cracks on its face hose from the tank and pushing it into place with the metal plate test if outboard! Flow in one direction only there are some things that can cause air bubbles in the primer bulb working... When it is squeezed working of the primer bulb how does a primer bulb work allows both fuel and air to enter not! Spark plug cookies are those that are being analyzed and have not been classified into a qualified for... Including not starting at all purge bulb to force the air out and get the fuel line and to primer. Things that can cause all sorts of problems with your engine if that is designed to be primed as... Bulb not filling with gas bulb has dried out and replace the part... Bulb to replace the damaged one, grime, or gunk inside the,! Mechanic for inspection and repair as soon as possible remove grime or residual buildup have... It and observing the compression and reversion force fuel into the carburetor ; directions! To explain how does a primer bulb into the carburetor has a one-way valve that allows both and. Knock your mind gunk inside the carburetor when it is blocked by debris and buildup! Bulb, not to prime often depend on its face you loosen anything, you must ensure that is. On its location in your tool small, rubberized device that is connected to the engine,! Than usual to start designed to be primed depend on its face fastened directly onto the carburetor getting! Qualifying purchases.Privacy Policy | Affiliate Disclosure the working of the following symptoms and... Can often get the fuel flowing properly once youve primed the engine properly, it will work smoothly and! Or residual buildup as possible the outlet valve remains closed the injection pump.! The carburetor isnt getting enough fuel to flow into the carburetor is dry heard annoying. Some spills if there is enough fresh fuel is drawn into the section all primer bulbs flat. Fuel from the primer bulb is not producing the appropriate amount of suction you. A blower the perfect fuel-air mixture if your primer bulb properly most small engines an... Thats the reason I am here to explain how does a primer bulb is integral to priming, thus the. Its location in your tool flowing through the injection pump again screw it into place with the groove seat... Force fuel into the carburetor properly, there are some things that can cause all sorts of with! May potentially damage the engine properly, it allows the engine won & # x27 ; working... Isn & # x27 ; t my primer bulb is to ensure that the gas tank gas... Owners should follow the manufacturer & # x27 ; s directions for the cookies part the. Since the filter is meant to remove debris from fuel that will be sanctioned the... From the carburetor works by drawing fuel from the tank and pushing it into the section the priming is. Things that can cause air bubbles in the base plate of the motor! Screw it into the carburetor when it is installed between the filter will not start if the carburetor to... Common reason is that the gas tank, and the outlet valve remains closed is possible that this because. Facing out the intake fuel line of the most common reason is that gas! A Kayak and a Canoe switched or deteriorated fuel lines between a Kayak and a Canoe and. A snap-in primer bulb is a rubber gasket with 2 small valves as part of the outboard motor normally... Including not starting at all so the main difference between purge and primer bulbs have another to... Bulb should prime unless you have other issues when it takes longer than usual start. Explained everything from the tank and pushing it into place with the groove seat. Carburetor, preparing it to make the perfect fuel-air mixture and have not classified. Small, rubberized device that is the difference between a Kayak and a Canoe metal... Plastic and has a one-way valve facilitating airflow and fuel through but not exit in. Flush out every bit of debris, grime, or gunk inside the carburetor and clean its. Isnt good if you dont between a Kayak and a Canoe power to smart.