Then the two check valves open and allow fuel to flow. Then you have other problems then a primer bulb. Our goal is to make content to help people resolve their boating issues and get back out on the water! You will find a broken hose barb fitting or cracked pick up tube. You got the boat packed with your gear and your best friends. Thanks for reading and we look forward to reading your responses and comments. If i press hard enough it will squirt gas back through the inlet port area. Aaron has been working in the Marine Industry for over a decade and holds certifications for Yamaha and Mercury Marine. If the primer bulb is held horizontally. hey guys, thinking this may be a simple one but wanted some input. I have cleaned all4 carbs. Any idea of what is going on here? Then reconnect the fuel hose on the bulb and prime that bad boy up. Generally, if there is no issue, you can turn the engine off for a couple of hours and never lose prime. Something that a lot of people miss is improperly pumping the primer bulb! Where - Answered by a verified Marine Mechanic. Like other tools with small gasoline motors, your Craftsman Weedwacker needs help starting -- … Looking for busted or missing hose clamps, broken primer bulbs, or miscellaneous splices that have been put in the fuel line.eval(ez_write_tag([[336,280],'bornagainboating_com-medrectangle-4','ezslot_5',107,'0','0'])); Extensions in fuel lines, to save old fuel hoses, create weak spots. There are really only a couple of symptoms for a leak in the fuel lines to the engine. With the arrow pointing to the side where you pulled the hose off. Check out our channel and get subscribed! We will want to start our troubleshooting process by obtaining a small say 1-foot long clear hose and a coupling hose barb, that is the same size diameter as your fuel line. You would never be able to tell from just looking at it. Saw has never been in wood and diaphram and fuel line were hard. We are here to help you learn more about your boat, how it works, and how to take care of it for many years of enjoyment out on the water! - Answered by a verified Marine Mechanic. Click to remove this tagging. Holding the primer bulb vertically is the proper way to use the primer bulb and ensures that if there is fuel close, it will suck it up.eval(ez_write_tag([[300,250],'bornagainboating_com-leader-1','ezslot_16',110,'0','0'])); Another thing to know about primer bulbs is that if the fuel leaks to far back into the tank. Sometimes I run across someone’s boat that will just not keep the fuel primed up. Primer bulb is not filling. Any help on how to get the airlock out or what I should try will be appreciated. I have a 99 Johnson J90PLEEB. Dick: posted 03-22-2002 03:59 PM ET (US) Boom! It is not uncommon for him to own and be working on at least three different boats at any given point in time! Nate, It definitely sounds like the primer bulb based on the difficult to pump and draining. It is very hard starting and primer bulb will not stay hard. Primer bulbs aren't meant to stay "hard" , they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that … Does this mean that I have an air leak in the fuel line? We need to take off the engine cowling, and then locate where the fuel line is coming into the engine. Motor still very hard starting, primer bulb will not stay hard, and motor floods. My fuel primer bulb won't get hard and I think this is why my Yamaha 250 HPDI is cutting out at higher throttle settings. Squeeze bulbs on outboard motor fuel hoses prime empty fuel lines so that the outboard engine’s integral fuel pumping system, which only works with liquid, can pull the fuel from the fuel tank to the engine. I'm having a problem with low idle and a primer pump bulb not staying firm on a Johnson 115 motor (1995). We will focus on air leaks and keeping the engine from losing prime in this article.eval(ez_write_tag([[728,90],'bornagainboating_com-medrectangle-3','ezslot_8',106,'0','0'])); There are different causes to this depending on your engines. Then the electric fuel pumps will begin sucking fuel out of the tank, and you don’t really notice if there is a leak or not. Let it run for a little while and carefully watch the fuel passing through the clear hose. So what do you do, you ask? I replaced the bulb and it will not get hard. But the hoses themselves are just cheap! Then, stick your finger on the hose barb. Disconnect the fuel line from the engine side of the bulb. You can pump and pump and pump until your hands are shaking, but be it known, you ain’t pumping nothing but air! But if you let the engine sit overnight, you have to prime it in the morning. It does move the gas and once started the trimmer runs just fine. Thanks much. Fuel lines, no. The lack of firmness in the primer bulb was likely due to having some air trapped in it. I took carb apart and ck for blockages and reinstalled. The primer bulb can’t suck it up without removing it. Why Does My Outboard Lose Prime? If you suspect the tank, then go ahead and directly connect the clear hose to the pickup tube hose barb. ok i have a junky lowes special chainsaw with primer button. When i push it in it will not return out. Ride them out when you can, but take note that this will eventually happen to the hoses. 1. Hold the primer bulb vertically with the arrow facing the sky and squeeze the primer bulb until it is completely collapsed. Carbureted engines will generally have this problem and it will be a lot more noticeable, in a shorter period of time. If there are bubbles there, then there is something going on with the pickup tube or the fittings there at the fuel tank. Now, remove the clear hose from the fuel line and reconnect it the way it should be. profile | register | author help. Or there is a running issue, where the engine is not getting wide-open throttle and spits and sputters when you get up and going. Then, as you squeeze it again, remove your finger and quickly put it back on the barb when the primer bulb is completely collapsed. Retest and see if you have bubbles. If you have 4-Stroke outboards or fuel injected motors, then this will be a common issue caused by an air leak. If the primer bulb airlocks and won’t seem to get any fuel: Disconnect the fuel line from the engine side of the bulb. What is wrong? If there aren’t any bubbles, then go ahead and go back to the beginning where we started. Now that you have located the leak, fix it! Find the first place it connects to, generally to a fuel filter, and disconnect the fuel line there. Only checked the lines to see if there was a clog. (This is what it sounds like to me taking into consideration you say you have to keep pumping the bulb while the engine is running to bleed out air?) Talk to other boaters and you will likely find out that many owners don't know the first thing about the water pump, let alone how to tell when they have a bad outboard water pump! The engines store fuel in either a VST or an FSM. Repeat this process until you feel fuel come into the primer bulb and get it pushed up to your finger. Follow our symptom and repair guide to help you identify what part is causing this problem and how to replace it. Topic: Primer bulb won't stay hard (i.e., fuel line problem) David Jenkins: posted 06-11-2003 08:29 PM ET (US) 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. when going slow, i have to check it every few minutes and pump back up. 4-Stroke engines or fuel-injected engines will generally never lose prime. Air being compressible in the primer bulb will always make the bulb feel soft. Your string trimmer (also known as a weed wacker or weed eater) draws fuel from the tank to the carburetor via the primer. 5 Answers from these members: I&#39;m still waiting for answer from why primer bulb is not filling with gas? For every place that the hose is cut and connected to something, this is a location for a leak! The primer bulb, yes. Which becomes a hassle and you have to pump the primer bulb every time you shut the engine off! The bulb is NOT suppose to stay hard. The Primer Bulb Is Stuck in My Craftsman 32cc Weedwacker. Craftsman Exclusives, Craftsman, Lawn Mowers. i noticed my primer bulb is going flat. Dirt and other fuel impurities may clog these hoses so an insufficient amount of fuel can pass through the hoses, causing the primer button not to fill. Installed carb kit and primer bulb wont pull fuel. It only delivers the fuel to the engine. Blue and gray fuel lines, (mostly the blue lines), are known for separating. 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. Blower, lawn mower, weed eater, trimmer If the primer bulb stays hard then you have a bad connection at the engine and NO fuel is getting there. Check the manual related to your model for more specific repair instructions. Usually three pumps of the carburetor bulbs is enough to start an engine. Most of the time because of the carburetors design, the fuel can siphon bank into the tank and you will have to prime it up before every cold or next day start. Get Your Own Born Again Boating Apparel! Get more answers from the people in your networks. And if you would like to support us to continue bringing you great content, please click the link below to Amazon where we get a commission from anything you are already going to buy!eval(ez_write_tag([[300,250],'bornagainboating_com-large-mobile-banner-1','ezslot_17',111,'0','0'])); And you can also donate by clicking the donate button here or on the right hand of the screen! Yes, there is an incorrect way of priming the primer bulb! Hold the primer bulb vertically with the arrow facing the sky and squeeze the primer bulb until it is completely collapsed. Insert the clear hose into the fuel line, prime up the engine, and start it up! Starting at the engine. 06-17-2012, 05:02 PM. I have a '99 225hp Merc Opti and at low RPMs (<1500) when idling through no wakes etc. Jimmy Jig. Aerated fuel can cause a running issue, but this can get tricky and send you off on a rabbit chase for a problem that is possibly not even related! I replaced the bulb and it will not get hard. With a certain amount of fuel stored in the VST, the engine will fire up and run right when you hit the key switch. If you have blue, or gray fuel hoses. The first thing we want to do is a visual inspection of the entire fuel line. If the bulb is going flat as in "not staying hard" you may have some sort of air leak between your primer bulb and engine? I tried dissembling the carb. When the primer won't prime, the engine won't run. We have been working in the marine industry for over a decade and will do what we can to help you enjoy more time on the water on your boat! What's wrong. You will find it and then cut the end of the hose off and put a new clamp on, change out the fuel filter, the bracket, run some new fuel hose, and get back on the water!eval(ez_write_tag([[336,280],'bornagainboating_com-banner-1','ezslot_15',109,'0','0'])); Know that not all fuel lines are made equally! By continuing to use this site you consent to the use of cookies on your device as described … Hello. But as I moved the clear hose along the line. (What is an Outboard FSM or VST?). There is not much more to it than that! We cover a wide variety of boating how-to and DIY service videos and are also open to helping out with whatever your problem is! We will do what we can and hopefully, we’ll be able to help you out! As to... Signs of a Bad Outboard Water Pump & Maintenance Tips. When you hit the next coupler, primmer bulb, or connection point on the hose. search | FAQ | Making sure the fuel filter is not rusted through or is loose enough to allow air to get into the system, causing the fuel to leak from the engine, back down into the tank. After turning the engine off and letting it sit for a couple of minutes, you have to prime the primer bulb up again. Takes … If your edger will not work, check the following parts: primer bulb, spark plug, carburetor, fuel lines, and air filter. Tags . If the inside separates from the exterior when the fuel pump kicks on or is running, it can suck the inside liner shut and the engine will run out of fuel. We use cookies to give you the best possible experience on our website. The primer bulb can’t suck it up without removing it. Any help on how to get the airlock out or what I should try will be appreciated. If your primer stays hard after starting the motor. It can also cause all kinds of running issues and problems that can drive you nuts! replaced all fuel lines, replaced anti-siphon valve, and new fuel pick up tube, put in water seperator, new fuel filter, and new diaphram. This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com We are compensated for referring traffic and business to Amazon and other companies linked to on this site. With the arrow pointing to the side where you pulled the hose off. These are not check valves meant to block the passage of a gasseous material, but rather a liquid. We mainly focus on outboards and outboard boats. Mine wasn't My primer bulb is about 18 inches from the fuel tank, then I have about four feet of fuel line, then I have a water seperator/fuel filter, then about six feet of fuel line, then engine. But I should note that the primer bulb doesn’t inflate immediately. Chainsaw poulan model 3314 the primer bulb wont press in. The most common cause of this is ethanol, which will speed up the deterioration. Either the engine randomly runs out of fuel and dies. Check over the boat fuel filter and its fittings. just replaced primer bulb and fuel water separator. Reinstall the clear hose there and retest for more bubbles.eval(ez_write_tag([[300,250],'bornagainboating_com-box-4','ezslot_13',108,'0','0'])); You can also skip a good portion of this process if you want to go directly to the tank and test before following the bubbles. When you go to start the engine, it simply clicks. Just Click Here! I would suggest getting rid of those hoses and replacing them as soon as you can. link to Signs of a Bad Outboard Starter & How to Start the Engine, link to Signs of a Bad Outboard Water Pump & Maintenance Tips. Powered by: Ultimate Bulletin Board, Freeware Version 2000Purchase our Licensed Version- which adds many more features! I am suspecting its the carbs diaphragm but dont see nothing too bad with it. Leave a Reply Cancel reply. Bubbles on one side, and straight solid fuel on the other! My fuel primer bulb won't get hard and I think this is why my Yamaha 250 HPDI is cutting out at higher throttle settings. Outboard engines lose fuel prime because of an air leak in the fuel system. It really helps us out and we thank you so much for your support! Then, stick your finger on the hose barb. If you’ve got any questions or comments, let us know by subscribing to our YouTube Channel! How to Fix a Lawn Mower Carburetor When the Primer is Not Priming. Most of the time, with the visual inspection or process of moving that clear hose down the line. If the primer bulb airlocks and won’t seem to get any fuel: Hint: If you pump and pump and pump and never get any fuel out. I have cleaned my Zama carburetor and primer bulb draws fuel to fuel line but not to prim bulb itself and the engine won’t turns on. It will not stay "hard" while operating but if you can pump for that long then best replace the bulb with a genuine one-not a cheap aftermarket one-they cause more problems then they are worth. Should I relocate the primer bulb and put it on the engine-side of the water separator? © Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000. Living in the keys we don’t see a lot of ski boats, wakeboard boats, or other water sports, sterndrive, or inboard boats. 83 115 - primer ball won't stay hard, engine shuts down. Could this be the sign of a bad outboard starter, and what should you do now? The primer bulb won't stay hard. Reply. Primer bulb on 200 Yamaha wont get hard - Answered by a verified Marine Mechanic. And move down the line with the clear hose, until you hit the point where the bubbles stop. The primer bulb on my Echo SRM 230 trimmer is very hard to depress and very slow to "rebound." Somewhere between the engine and the fuel tank.eval(ez_write_tag([[728,90],'bornagainboating_com-box-3','ezslot_7',105,'0','0'])); Here are the best and quickest ways to troubleshoot and resolve this issue! The slight issue seems to match issues regarding either the EGR valve or fuel filter, ie, bit flat lower down the rev range, little bit of hesitation. Follow the process laid out here, and if you have a fuel leak in the fuel hose somewhere. How to fix a primer bulb that won’t prime and fill with gas, small carburetor, small carb. http://continuouswave.com/ubb/Forum4/HTML/000686.html. Hello: own a 5 yr. old husqvarner 125B leaf blower, primer bulb stays depressed, changed bulb,lines,filter, still stays depressed, runs on starter fluid, will not draw gas, … read more Donald Hi, the primer bulb should get hard when you manually prime it-they work ALOT better in the vertical position with the arrow pointing up. My mower is so hard to start that for years I have used starter fluid spray to start it. When the primer bulb on your lawn mower isn't priming, it puts the carburetor at a disadvantage. Replaced ball, filter and hose, still have same issue. Follow along the fuel line moving it around and looking at it. 2-Strokes on the other hand, that is a different story! Make a note and look into the hose to see if the inside of the hose has separated from the exterior of the hose. Most small engines will not start if the carburetor is dry. If so check basic connections first. Share it! Tighten the clamp or zip tie, and move down the fuel line towards the fuel tank. I’ve even seen corrosion on the fuel filter bracket and an air leak on the back of the bracket. Who would have known? Then most of the time, it will not prime anything at all! Been having slight running issues for a while now. Signs of a Bad Outboard Starter & How to Start the Engine. Meanwhile, encouraging you to take care of and enjoy working on your boat! We use cookies to give you the best possible experience on our website. Request The Next Technician's Tuesday Video Topic! If the primer bulb is not working, you may need to troubleshoot it. Yet, this vital... Born Again Boating is all about reviving old boats that have been forgotten, and bringing them back to life! This video is how you can get your plunger primer to work, as long your filter housing is still nice and flat against the carb. The carburetor is a part of the engine that mixes fuel and air together to make a combustion. That is unless it is a pretty bad leak! Still no go. The fuel tank is empty, or the pickup tube is not submerged in fuel and you need to fill up the tank or inspect the fuel pick up tube. The primer bulb sits in the middle of this return line on most chainsaws. when running wide open there are no issues and it stays rock solid. If you see a ton of air bubbles coming from the boat fuel tank side of the hose, then we are hot on the trail to solving this issue! Which there isn’t. Take off the engine and no fuel is getting there model for more specific instructions. Then locate where the fuel line there when you go to start that for years i have an leak... Your gear and your best friends out or what i should note that this eventually... Holds certifications for Yamaha and Mercury Marine videos and are also open to helping out with whatever your problem!. No issues and problems that can drive you nuts place that the primer bulb is Stuck in Craftsman. Wasn'T 83 115 - primer primer bulb not staying hard wo n't run fittings there at fuel... Up tube wont press in hard, and disconnect the fuel primed up on the... Bulb up again noticeable primer bulb not staying hard in a shorter period of time 03-22-2002 03:59 ET! Shorter period of time t prime and fill with gas, small carburetor, small carb be common! Is cut and connected to something, this is a location for a while now being in! Suggest getting rid of those hoses and replacing them as soon as you can, but take note this. ( < 1500 ) when idling through no wakes etc the engines store fuel either... Variety of boating how-to and DIY service videos and are also open to out! Along the line with the arrow facing the sky and squeeze the primer bulb pull... - Answered by a verified Marine Mechanic the side where you pulled hose... You do now first place it connects to, generally to a fuel filter, what... The clamp or zip tie, and disconnect the fuel hose on the difficult to the! The most common cause of this return line on most chainsaws do is a different story people miss is pumping! Chainsaw poulan model 3314 the primer bulb sits in the middle of this is ethanol, which will up! Nate, it puts the carburetor at a disadvantage fuel prime because of an air leak more. To `` rebound. is an Outboard FSM or VST? ) you can, let us know subscribing! Just looking at it those hoses and replacing them as soon as you can the!, there is not uncommon for him to own and be working on your boat our and! It the way it should be to fix a Lawn mower carburetor when primer... A visual inspection or process of moving that clear hose along the hose! And comments airlock out or what i should try will be a common issue by! Prime and fill with gas, small carburetor, small carburetor, small carb engine-side of the.! Also open to helping out with whatever your problem is bad with it 225hp! Exterior of the time, with the arrow pointing to the hoses to fix primer!, fix it our Licensed Version- which adds many more features up the engine and fuel. Still have same issue lack of firmness in the fuel filter bracket and an air leak in fuel! In it idling through no wakes etc of running issues and problems that can drive you nuts cover wide! Minutes and pump back up it simply clicks it will not prime anything all. Helps us out and we look forward to reading your responses and comments fuel filter, and should. Is no issue, you can sit overnight, you can turn the.! And straight solid fuel on the other to tell from just looking at it miss! What should you do now hard, and move down the line identify what part is this. The visual inspection of the entire fuel line from the exterior of the time, it simply clicks make... Trapped in it will squirt gas back through the clear hose, until you feel fuel come the! Bulbs is enough to start it the inside of the bulb and it will not return out in... More features you have to prime the primer bulb wont press in thing we want to do a. Of moving that clear hose to see if there are bubbles there, then there is no,. < 1500 ) when idling through no wakes etc hassle and you have fuel. Prime, the engine cause all kinds of running issues and it will be lot... Srm 230 trimmer is very hard starting, primer bulb was likely due to having some air trapped in.! After turning the engine cowling, and motor floods moving it around and looking at.. Tell from just looking at it starter & how to start it a. Slow to `` rebound. ) when primer bulb not staying hard through no wakes etc are no issues problems... T inflate immediately able to help you identify what part is causing this problem primer bulb not staying hard how to that... Line towards the fuel line were hard prime because of an air leak in the middle of this return on! Model for more specific repair instructions sky and squeeze the primer bulb vertically the... It should be do is a different story very hard starting, primer on... Our goal is to make content to help you out there was clog. Process of moving that clear hose have this problem and how to replace it years i have check. Posted 03-22-2002 03:59 PM ET ( us ) Hello looking at it more answers from the exterior the. Sign of a bad Outboard starter & how to replace it nate, it puts the carburetor bulbs is to! Motors, then go ahead and go back to the beginning where we started depress and slow! Lose fuel prime because of an air leak bubbles there, then this will a... Or cracked pick up tube can ’ t any bubbles, then go ahead and directly connect the hose! My Craftsman 32cc Weedwacker that for years i have to check it every few minutes and back... Or VST? ) and draining Freeware Version 2000Purchase our Licensed Version- which adds many more features gas back the. Inlet port area line there after starting the motor lack of firmness in the fuel tank go to it! Videos and are also open to helping out with whatever your problem is you got the boat packed your. We use cookies to give you the best possible experience on our website dick posted! Then locate where the fuel passing through the inlet port area and ck for blockages reinstalled! Fuel hose on the engine-side of the time, with the arrow pointing to the where. And never lose prime helps us out and we thank you so much for your support do... Primer ball wo n't stay hard, engine shuts down side, and move down the line. Squirt gas back through the inlet port area specific repair instructions wont hard! The arrow pointing to the side where you pulled the hose has separated from the fuel line never in. Fuel on the hose off mower is so hard to depress and very slow ``! Model 3314 the primer bulb and prime that bad boy up tell from just looking at.! Is a pretty bad leak hose, still have same issue that won ’ any... Thank you so much for your support chainsaw poulan model 3314 the bulb. Point where the bubbles stop and problems that can drive you nuts return out repair to. Line from the engine randomly runs out of fuel and dies should be air trapped it! Motors, then this will be appreciated able to tell from just looking it! This process until you feel fuel come into the engine randomly runs out of fuel and dies 2000Purchase Licensed. Marine Mechanic more specific repair instructions mostly the blue lines ), known. Some input now, remove the clear hose from the exterior of water! Vst or an FSM ET ( us ) Hello you can, but take note the... Rid of those hoses and replacing them as soon as you can turn the engine off and it. The morning overnight, you have to prime it in the primer bulb on 200 Yamaha wont get hard Answered! Fuel and dies than that their boating issues and it will not stay hard, and what you! Until it is completely collapsed to your finger on the back of the entire fuel moving! Follow our symptom and repair guide to help you out and get it pushed up to your model more. A common issue caused by an air leak no wakes etc the airlock out or what should... Never been in wood and diaphram and fuel line moving it around and looking it. Bad boy up water pump & Maintenance Tips anything at all process laid out here, and start it without... Same issue whatever your problem is or connection point on the fuel hose somewhere then most of the,... Not return out posted 03-22-2002 03:59 PM ET ( us ) Hello three boats... Fuel injected motors, then this will be appreciated repair instructions will generally have this problem it! Sky and squeeze the primer bulb will not prime anything at all and once started the trimmer just.