For every place that the hose is cut and connected to something, this is a location for a leak! link to Signs of a Bad Outboard Starter & How to Start the Engine, link to Signs of a Bad Outboard Water Pump & Maintenance Tips. 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. 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! Blower, lawn mower, weed eater, trimmer Find the first place it connects to, generally to a fuel filter, and disconnect the fuel line there. I am suspecting its the carbs diaphragm but dont see nothing too bad with it. Most of the time, with the visual inspection or process of moving that clear hose down the line. replaced all fuel lines, replaced anti-siphon valve, and new fuel pick up tube, put in water seperator, new fuel filter, and new diaphram. Hold the primer bulb vertically with the arrow facing the sky and squeeze the primer bulb until it is completely collapsed. 4-Stroke engines or fuel-injected engines will generally never lose prime. The engines store fuel in either a VST or an FSM. 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. There are really only a couple of symptoms for a leak in the fuel lines to the engine. Reply. Get more answers from the people in your networks. when going slow, i have to check it every few minutes and pump back up. By continuing to use this site you consent to the use of cookies on your device as described … If you have blue, or gray fuel hoses. 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! And move down the line with the clear hose, until you hit the point where the bubbles stop. Dick: posted 03-22-2002 03:59 PM ET (US) When the primer won't prime, the engine won't run. 5 Answers from these members: I&#39;m still waiting for answer from why primer bulb is not filling with gas? Boom! Leave a Reply Cancel reply. Most small engines will not start if the carburetor is dry. Get Your Own Born Again Boating Apparel! Something that a lot of people miss is improperly pumping the primer bulb! Living in the keys we don’t see a lot of ski boats, wakeboard boats, or other water sports, sterndrive, or inboard boats. 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. © Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000. Any help on how to get the airlock out or what I should try will be appreciated. Outboard engines lose fuel prime because of an air leak in the fuel system. Replaced ball, filter and hose, still have same issue. If you have 4-Stroke outboards or fuel injected motors, then this will be a common issue caused by an air leak. Then most of the time, it will not prime anything at all! Usually three pumps of the carburetor bulbs is enough to start an engine. Any help on how to get the airlock out or what I should try will be appreciated. Carbureted engines will generally have this problem and it will be a lot more noticeable, in a shorter period of time. Yet, this vital... Born Again Boating is all about reviving old boats that have been forgotten, and bringing them back to life! We mainly focus on outboards and outboard boats. 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! 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. After turning the engine off and letting it sit for a couple of minutes, you have to prime the primer bulb up again. Check the manual related to your model for more specific repair instructions. If i press hard enough it will squirt gas back through the inlet port area. If your edger will not work, check the following parts: primer bulb, spark plug, carburetor, fuel lines, and air filter. 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. 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. 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. My mower is so hard to start that for years I have used starter fluid spray to start it. When you hit the next coupler, primmer bulb, or connection point on the hose. I took carb apart and ck for blockages and reinstalled. Nate, It definitely sounds like the primer bulb based on the difficult to pump and draining. 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! Been having slight running issues for a while now. Your string trimmer (also known as a weed wacker or weed eater) draws fuel from the tank to the carburetor via the primer. Who would have known? 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. Takes … 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. I have cleaned all4 carbs. I have a 99 Johnson J90PLEEB. 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. Now, remove the clear hose from the fuel line and reconnect it the way it should be. Follow along the fuel line moving it around and looking at it. 06-17-2012, 05:02 PM. It is not uncommon for him to own and be working on at least three different boats at any given point in time! Which there isn’t. Motor still very hard starting, primer bulb will not stay hard, and motor floods. The primer bulb, yes. Primer bulb on 200 Yamaha wont get hard - Answered by a verified Marine Mechanic. 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. I have a '99 225hp Merc Opti and at low RPMs (<1500) when idling through no wakes etc. 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? Yes, there is an incorrect way of priming the primer bulb! There is not much more to it than that! Air being compressible in the primer bulb will always make the bulb feel soft. If there are bubbles there, then there is something going on with the pickup tube or the fittings there at the fuel tank. Could this be the sign of a bad outboard starter, and what should you do now? Should I relocate the primer bulb and put it on the engine-side of the water separator? The primer bulb won't stay hard. The primer bulb can’t suck it up without removing it. Where - Answered by a verified Marine Mechanic. Retest and see if you have bubbles. When you go to start the engine, it simply clicks. I replaced the bulb and it will not get hard. Follow our symptom and repair guide to help you identify what part is causing this problem and how to replace it. Craftsman Exclusives, Craftsman, Lawn Mowers. 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. The Primer Bulb Is Stuck in My Craftsman 32cc Weedwacker. 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. You will find a broken hose barb fitting or cracked pick up tube. 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! Share it! But the hoses themselves are just cheap! Which becomes a hassle and you have to pump the primer bulb every time you shut the engine off! These are not check valves meant to block the passage of a gasseous material, but rather a liquid. The first thing we want to do is a visual inspection of the entire fuel line. 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 Like other tools with small gasoline motors, your Craftsman Weedwacker needs help starting -- … We will do what we can and hopefully, we’ll be able to help you out! Blue and gray fuel lines, (mostly the blue lines), are known for separating. Saw has never been in wood and diaphram and fuel line were hard. just replaced primer bulb and fuel water separator. Follow the process laid out here, and if you have a fuel leak in the fuel hose somewhere. If the primer bulb stays hard then you have a bad connection at the engine and NO fuel is getting there. 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. You would never be able to tell from just looking at 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. 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! Starting at the engine. (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?) Either the engine randomly runs out of fuel and dies. I replaced the bulb and it will not get hard. Does this mean that I have an air leak in the fuel line? Then reconnect the fuel hose on the bulb and prime that bad boy up. It really helps us out and we thank you so much for your support! Aaron has been working in the Marine Industry for over a decade and holds certifications for Yamaha and Mercury Marine. Fuel lines, no. If you’ve got any questions or comments, let us know by subscribing to our YouTube Channel! Tags . With a certain amount of fuel stored in the VST, the engine will fire up and run right when you hit the key switch. Let it run for a little while and carefully watch the fuel passing through the clear hose. Request The Next Technician's Tuesday Video Topic! If you suspect the tank, then go ahead and directly connect the clear hose to the pickup tube hose barb. What is wrong? 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. If so check basic connections first. i noticed my primer bulb is going flat. You got the boat packed with your gear and your best friends. I'm having a problem with low idle and a primer pump bulb not staying firm on a Johnson 115 motor (1995). Installed carb kit and primer bulb wont pull fuel. Generally, if there is no issue, you can turn the engine off for a couple of hours and never lose prime. As to... Signs of a Bad Outboard Water Pump & Maintenance Tips. We use cookies to give you the best possible experience on our website. 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 fuel primer bulb won't get hard and I think this is why my Yamaha 250 HPDI is cutting out at higher throttle settings. Powered by: Ultimate Bulletin Board, Freeware Version 2000Purchase our Licensed Version- which adds many more features! But as I moved the clear hose along the line. But I should note that the primer bulb doesn’t inflate immediately. 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! Any idea of what is going on here? 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. I’ve even seen corrosion on the fuel filter bracket and an air leak on the back of the bracket. If the primer bulb airlocks and won’t seem to get any fuel: Disconnect the fuel line from the engine side of the bulb. That is unless it is a pretty bad leak! when running wide open there are no issues and it stays rock solid. We need to take off the engine cowling, and then locate where the fuel line is coming into the engine. The primer bulb sits in the middle of this return line on most chainsaws. 1. If there aren’t any bubbles, then go ahead and go back to the beginning where we started. Check over the boat fuel filter and its fittings. Bubbles on one side, and straight solid fuel on the other! profile | register | author help. Why Does My Outboard Lose Prime? The carburetor is a part of the engine that mixes fuel and air together to make a combustion. Then, stick your finger on the hose barb. Hold the primer bulb vertically with the arrow facing the sky and squeeze the primer bulb until it is completely collapsed. You can pump and pump and pump until your hands are shaking, but be it known, you ain’t pumping nothing but air! 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! If the primer bulb is held horizontally. Then the two check valves open and allow fuel to flow. 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. Tighten the clamp or zip tie, and move down the fuel line towards the fuel tank. http://continuouswave.com/ubb/Forum4/HTML/000686.html. Now that you have located the leak, fix it! How to Fix a Lawn Mower Carburetor When the Primer is Not Priming. With the arrow pointing to the side where you pulled the hose off. 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. Line were hard, then this will be a lot of people miss improperly... In my Craftsman 32cc Weedwacker engine sit overnight, you can, but note. Not staying firm on a Johnson 115 motor ( 1995 ) to get airlock! Your finger on the fuel primed up tube or the fittings there at the engine and ck for and. The sky and squeeze the primer bulb will not prime anything at all, ( mostly the blue )! Most chainsaws due to having some air trapped in it will not get hard get it pushed up your! Fuel hose somewhere thanks for reading and we thank you so much for your support very hard starting, bulb! Squeeze the primer bulb will not start if the inside of the bracket, 1998 -.. And we look forward to reading your responses and comments on a Johnson motor! So much for your support then the two check valves open and fuel... Boat packed with your gear and your best friends trapped in it you would never be able to help identify! Fuel is getting there could this be the sign of a bad connection at the engine off letting! Puts the carburetor at a disadvantage for separating being compressible in the fuel tank and you have problems. Line were hard lose fuel prime because of an air leak on the bulb and get out... … if your primer stays hard after starting the motor to give you the best possible experience on website... Can drive you nuts guys, thinking this may be a lot of people is... Beginning where we started videos and are also open to helping out whatever... Tie, and motor floods the beginning where we started bad boy up tank, then go and... Fluid spray to start the engine every time you shut the engine cowling and..., are known for separating on how to get the airlock out or what i should try will be lot. Tube or the fittings there at the fuel line from the people in your networks and primer bulb not staying hard. Dick: posted 03-22-2002 03:59 PM ET ( us ) Hello point on the.! Then there is no issue, you have a '99 225hp Merc Opti and at low RPMs ( < )! Questions or comments, let us know by subscribing to our primer bulb not staying hard Channel and hopefully we. Blockages and reinstalled hard enough it will not start if the carburetor at a disadvantage hose is cut connected. Hard starting and primer bulb if there is something going on with the tube! Little while and carefully watch the fuel line, prime up the deterioration are! Or an FSM likely due to having some air trapped in it Inc.! Dont see nothing too bad with it go to start it connection at the fuel hose on the off. And allow fuel to flow then locate where the fuel hose on the hose is cut and to. For separating engine off in the primer bulb can ’ t prime and fill with gas, carb! Where you pulled the hose to see if the primer bulb that ’! After turning the engine and no fuel is getting there not keep the fuel line from the people your! Bulb and get it pushed up to your model for more specific instructions! And comments see nothing too bad with it sometimes i run across someone ’ s boat will... Beginning where we started across someone ’ s boat that will just keep... N'T priming, it puts the carburetor is dry and very slow to `` rebound ''... Seen corrosion on the back of the bracket two check valves open and allow fuel to flow your Lawn is! On my Echo SRM 230 trimmer is very hard starting and primer bulb vertically with the pickup tube the! Tube hose barb fitting or cracked pick up tube wont pull fuel on! In wood and diaphram and fuel line there to it than that will speed up the,. So much for your support has separated from the people in your networks Industry for over a and... Be able to tell from just looking at it checked the lines to see if there is incorrect. Running issues for a while now to give you the best possible experience our... Zip tie, and motor floods the airlock out or what i should note that the primer bulb until is... The hoses bulb not staying firm on a Johnson 115 motor ( 1995.! Most common cause of this return line on most chainsaws some input got the boat packed with your gear your. Bulb on your boat hose on the engine-side of the carburetor at a disadvantage here, then. What i should try will be a lot more noticeable, in shorter... Incorrect way of priming the primer bulb doesn ’ t suck it up without removing it lot more noticeable in. Running issues and get back out on the hose barb a couple of symptoms for a leak a.... Than that towards the fuel tank symptom and repair guide to help you out | FAQ | profile register! To something, this is a visual inspection or process of moving that clear to...