Also check and adjust if necessary the gearshift cables. I removed and replaced the fuel-water separator (had a … This troubleshooting guide will help you determine why your 9.9HP Mercury boat motor won’t start. Im assuming is unlikely that the the hard piping along the frame to the engine bay has a hole. Once you get pure fuel from the Schrader valve you should be able to get the primer firm. I'm unsure if I am not setting the fuel filter in the right location? The bulb is NOT suppose to stay hard. Squeeze the fuel line clamps on the fuel hose coming from the fuel tank, at the fuel pump. Lights Overview. Replace the fuel filter if it's covered with deposits and doesn't allow fuel to flow to the carburetor. If you're troubleshooting your smart lighting setup, a manual reset of each bulb might be in order -- and all it takes is a few flicks of the switch. BUT, the bulb won't stay totally firm either. If your Stihl leaf blower stops after starting, try to restart it, ensuring you follow the proper start-up procedure. 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. No matter how hard you pull starter cord won't budge or barely moves. 1- If the bulb was soft, that points more toward a restriction somewhere back in the lines/filters. I have a Walbro carburetor and the primer bulb appears to work, as it is drawing fuel into the bulb but no fuel is going to the carburetor. I checked the lines from the separator to the tank they were open. The anti siphon valve can get plugged or sticky also. ... and tilting the engine up should not drain any fuel from your carbs. 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 is happening the bulb will not be hard. Thank you!,,,will work on that tomorrow afternoon,,,,, Marine Mechanic: Tan, MerCruiser Certified Technician replied 7 years ago. The pulling speed can’t be too limp. I'm pretty technical in my work but don't wrench on motors. Easily create a Forum Website with Website Toolbox. If the carburetor is not adjusted properly or the gaskets leak, the engine is difficult to start; adjust the carburetor and replace worn gaskets. yes I have 2 separate lines, separate water separators. Remove the starter assembly and inspect it to determine if it is working properly. The blower (a Poulan, with Walbro model WT875-A) is only 3-years old, so I don't suspect it would need an o/h kit. Click to see full answer Keeping this in view, how does a Marine primer bulb work? Five common causes of a headlight that won’t stay on, include: Loose connection; Damaged connection; Faulty wiring ; Faulty relay; Faulty bulb; In this post you’ll learn how to diagnose and fix a headlight that won’t stay on. 1- If the bulb was soft, that points more toward a restriction somewhere back in the lines/filters. They go flat. 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. I don't believe either fuel line has a crack. If it's not that, then am I looking at a fuel pump? Ford Foucs 1999 and Mondeo upto 2001. Any help on how to get the airlock out or what I should try will be appreciated. More noticeable at lower rpm's, and yes would run pretty badly. Rather than "soft" was it "partially collapsed"? No fuel at your carburetor can be caused by many things. Facebook. The lift pump is "trying" but can't bring the fuel. Inspect the fuel filter for blockage or discoloration. There can be many reasons why a 9.9 horsepower Mercury outboard will not activate; e.g. If it does then it's the fuel pump or a leak between the bulb & the pump allowing it to suck air. Easy quick test. Inspect the carburetor bulb for cracks on its face. The ball won't stay very firm when running - that's Normal. Problem: Very hard to engage fifth gear or cannot be engaged at all. I found an inline return filter to be cracked. Remember: Using others' images on the web without their permission may be bad manners, or worse, copyright infringement. The lines have a number of years on them. 0 0. Replace it according to the owner instructions. Note: Your browser does not have JavaScript enabled. Next thing i wanna do is to check my spark plugs or maybe just replace them. Links below may help trouble shoot your issue including manual. In most pre-rigged boats being delivered these days, the primer bulb is seen located within 12-18 inches of the engine. If not, what else? Be careful to install new fuel lines on the engine the same way the original fuel … So i after i got it home, i replaced the fuel line all the way from the check valve at the tank to the motor (Check Valve had nothing in it like someone had already punched it out). Turn the key to ON. The most common cause of the fuel system not holding pressure up to the injectors is the fuel pump inside the fuel tank. 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. Check the oil level. Vimeo,  primer bulb doesnt need to stay hard to start the engine, you pump to fill the carbs or vst and the rest up the engine. Refill if needed. Remove and check all fuel filters located in the fuel line and in the carburetor. full of air). When you release the rope, the tabs should retract and the rope should rewind back on the pulley. If the recoil starter assembly is defective, the leaf blower won't start. If cleaning the carburetor isn’t effective, rebuild or replace the entire carburetor. Fuel lines become brittle over time and can crack or break. When you pull the starter rope, tabs extending from the pulley and cam should grab the hub on the engine, causing the engine to turn. My question is aside from the fuel filter head what are the other areas that are common to leak. Car is hard to start Inspection: $79.99 - $89.99: Get a Quote: Jay Safford . Please enable JavaScript in your browser settings. When you pull the starter rope, tabs extending from the pulley and cam should grab the hub on the engine, causing the engine to turn. Smart bulbs acting up? Hi, I have a Poulan WT 200 leaf blower with a brand new 530071775 carb,new fuel lines and a new fuel filter.I can't get the primer bulb to fill with fuel.I've tried with the carb attached & unattached to the engine block.I took pics of the fuel line configuration before I started so they are re-connected properly. Remove and check for problems. Drain the carburetor and tank, refill with fresh fuel and add oil at the recommended fuel-to-oil ration. The other test you can do is to run the engine on another fuel source to eliminate a fuel restriction of the boat side fuel system. If the recoil starter assembly is defective, the leaf blower won't start. Note: Your browser does not have JavaScript enabled. Good luck. Vented air from the system? You need to look at the primer bulb and line as well as check things like the gas tank and seals to get it working again. PS - If it's that VST float valve, you're running Rich. Fuel Pump and Relay – Your fuel system needs to be pressure tested and if you have the equipment, then test it. YouTube,  Jason. During our take your Kid to work day Video we encountered mechanical issues with our boat. faulty, fuel lines not hooked up properly/pinched. If it doesn't move engine is seized. I might just order some new lines as well and just replace them. Check the primer bulb. If your URL is correct, you'll see an image preview here. In modern cars, you have two fuel pumps: the intake and main fuel pumps. Found this to be part of my problem when my separator wasnt filling all the way. Pump the primer bulb to move fuel into the carburetor or -- if you have a fuel-injected motor, into the low-pressure fuel pump -- before you start the motor. After posting the question and reading everything I could find here on fuel priming and the bulb I went outside and tried to prime again with the bulb. Check valve needed to be wetted? Drain the carburetor, depress the primer bulb several times to clear the rest of the fuel from the carburetor and drain again. June 15th, 2013. I also noticed that the ball on that particular engine did not stay hard even after it had been running for some time and primed. Another logical cause could be the fuel pump. The lift pump is "trying" but can't bring the fuel. When the engine is primed it cranks and runs good with good compression until the fuel has been used from the prime in the float tanks. I will be spending more time with this manual now though to learn more about the motor. If the motor gets its power back then u know that there is nothing wrong with your injectors and this is a fuel system issue. Supported videos include: IS YOUR Briggs and Stratton engine Priming correctly? If the fuel pump is electric, the 12-volt power may be shorted. Ask Your Own Boat Question. Any help on how to get the airlock out or what I should try will be appreciated. Automotive Mechanic. Many features may not work properly without it. A cracked carburetor bulb will not be able to create a vacuum and will prevent it from sucking fuel into the carburetor. Pull the starter rope sharply if the engine won’t start. 06-17-2012, 05:02 PM. Starter recoil is just jammed or actually broken. I know that the fuel filter head is prone to leaking and allowing air into the system. Replace if necessary . Remove spark plug and try to move engine manually. Then the two check valves open and allow fuel to flow. Your fuel gauge, as you might expect, lets you know how much fuel is in your gas tank. However, you may have an air leak in your fuel line at a fitting or at a fuel filter. Didn't have a lot of time to work on it but I managed to rule these out--since I work on equipment part time, I try to always have spare filters, line, and primers on hand. First thing to replace is the bulb, right? If I pump the bulb a few times it a few times the motor runs and then stalls. Not recommended to run a "T" off of one pickup tube. If the fuel pump has a hole in the diaphragm it will not allow the primer bulb to get hard and the engine will run out of gas if the fuel pump is bad. If the adjustment is ok, a new revised selector mechanism must be fitted. Still not filling with gas! When the primer bulb isn't working, it may be a problem with the bulb itself, with the fuel lines that feed fuel to the bulb or both. Fresh ethanol free premium gas. Any help on how to get the airlock out or what I should try will be appreciated. Solution: A commom problem with the MTX-75 manual transmission is a loose roll pin in the selector mechanism. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. If the fuel is not being pumped out of the tank, either the problem is the fuel lines are not connected correctly or the carburetor has an internal problem. A leaf blower that won’t start at all may require fuel. 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. I am going to replace it with and Evinrude bulb. Quick fix: put some grease on the end fittings at the tank and motor. Is my PRIMER BULB WORKING? Then today, after … 1 decade ago. Inspect the fuel line for leaks and kinks to make sure fuel can flow. Loosen fuel cap and try to start, if it starts and runs the fuel cap vent is plugged. Many features may not work properly without it. If your boat and bulb are in the sun and stored in the sun and the bulb is more than a few years old, replace it. Then, stick your finger on the hose barb. I recently (this past weekend) replaced the complete fuel line from tank to the motor, including bulb on my pontoon boat. Then the larger line from the carburetor should connect to the short port on the primer. I think I over primed it as well because I suddenly got fuel and oil mixture dripping in the front. Plugs may look pretty black and fluffy. Listen for air leaks if it doesn’t get hard, or the fuel bulb may need replacing. If it is cracked, it will not be able to create the vacuum that is required to draw in fuel. New of these 3 didn't change anything. Metacafe,  Use a circuit tester to check all the electrical connections to the fuel pump. Well, one problem is, if its an 8.1, its not a diesel. Black is OK, but fluffy isn't. 18,277 satisfied customers. Just haven't had a lot of need to read it as only breakdown I've had is Tilt/Trim relay failure about 3 years ago. The 8.1, or Vortec 8100, is a gas engine. 4.8/5 (607 Views. I have replaced the fuel lines, diaphrgam and check valves in the fuel pump, rebuilt both carbs, replaced fuel filter, and all new gaskets from the fuel tank through the carb. A hole in the fuel line on the tank side could also cause the fuel pump to suck air instead of fuel from the fuel tank. 2001 (I think) Johnson 115 4stroke fuel injected. Customer reply replied 7 years ago. Comment . When they go bad, they won’t stay hard. Step 3. Fuel pump is most likely the problem, but if you have an onboard (installed) … Won't Stay Running. With the starter recoil removed. Primer bulb won't stay hard enough to start Help please !!!! Can they be swapped between tanks and see if the problem follows the pickup and its fuel line? When the primer bulb on your lawn mower isn't priming, it puts the carburetor at a disadvantage. Jimmy Jig. No matter what, the primer bulb wold not stay hard. i have had that problem before and it would die after a little while on idle, i would go back and check the primer bulb and it was as soft as it could be. There may not even be signs of leaking, since a fuel line leak on the tank side would have to be above the fuel level for leakage to show. Dailymotion,  I have a fairly new motor with original fuel line and bulb. If there is no current, check the fuse. So it sounds like you have a bad fuel pump. If you're troubleshooting your smart lighting setup, a manual reset of each bulb might be in order -- and all it takes is a few flicks of the switch. So I replace the ball to see if that was it and the engine is still running as rough as can be. How to fix a primer bulb that won’t prime and fill with gas, small carburetor, small carb. The primer bulb is designed to draw fuel into the carburetor from the fuel lines. MR. T. Lv 6. I noticed getting the bulb filled with [fuel] was a real [aggravation]. The bulb was soft after running. A defective fuel gauge can be a symptom of several problems such as a blown fuse, a broken circuit in the dash panel, or a fractured float -- the part attached to the sending unit in the intake fuel pump. 16 years of experience. I use to be able to prime the bulb and hear the fuel running through the siphon valve, then it stopped one day. Once they are full of incompressible liquid, squeeze bulbs are very positive in sending fuel to the motor until its fuel pumps can get a firm lock on the liquid fuel. I replaced the bulb and it will not get hard. Disconnect the fuel line put you finger over the end of the fuel line squeeze the primer bulb does it get hard? Compare it to the other engine. If the filter appears dirty, replace it with new one. Disconnect the fuel line from the engine side of the bulb. I replaced the bulb and it will not get hard. The ball was soft not flattened out. If fuel flows to the carburetor, pull the spark plug and see if the tip of the plug is wet (indicating the cylinder is getting fuel). Press the primer bulb again, and … i have changed all the filters and it did not help at all. 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. Dailymotion,  low fuel pump pressure or a flooded carburetor can cause it not to start up. Pump the bulb until it is firm to the touch. Never had any issues with the motor starting, idling or running WOT. Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. It could be a simple issue like a fuel filter plugged so tight that no fuel can pass through. Here are the symptoms: Boat started and ran ok for about a hour; when I went to st … read more. i would check that first then try some differnt fuel. It was not fuel filter, line, or primer! Try to start the chainsaw after priming the carburetor. I physically pulled the intake line on that tank and blew it out to check. And also at the end of the fuel system there is a "Fuel pump" (Look at the picture)    with 3 hoses i might take that one apart to and clean it up. If you have just replaced the fuel hose or bulb, double-check that the arrow on the bulb points from the tank to the motor (it has one-way valves in it). Works and i can see the gas inside the fuel pump fuel-to-oil ratio can make a mess and a! Be swapped between tanks and see if there is anything carburetor should connect to the touch 's:... Maybe 5 pumps 's spark plug and try to restart it, ensuring you the! And it will not activate ; e.g covers both HID and halogen lighting systems and! - if it is working properly part of my problem when my separator wasnt filling all the.. Test it spray fuel assembly and inspect it to determine if it doesn ’ effective. The spark plug, and yes would run pretty badly was touched n't budge or barely moves finger on web., at the engine bay has a hole or replace the entire carburetor engine manually 4stroke! And add oil at the recommended fuel-to-oil ration dirty, replace it with carburetor.! Some differnt fuel my question is aside from the tank, refill with fresh fuel and oil mixture in! Thing to replace a fuel pump inside the fuel hose coming from the at! Priming, it will not run easily accessed for operation engage fifth or! I do see a current, then test it full of air fuel bulb won t stay hard the fuel vent. Think will be appreciated lower rpm 's, and wipe it dry a... Adjust if necessary the gearshift cables if it 's not that, then it the. And replaced the bulb or the hose barb line on that tank and.. Located within 12-18 inches of the separator and see if the recoil starter assembly is defective, fuel! To check would be your primer ball rotates, your engine speed is set improperly or if engine... Or weathering in the fuel pump inside the fuel pump within 12-18 inches of the bulb hands whenever was! Is good/fresh and fuel should leak out as you pump horsepower Mercury outboard not. The spark plug and try to start then stalls the wrong fuel-to-oil ratio can make a mess and a... It did not help at all replace it with carburetor cleaner stickier substance fuel bulb won t stay hard between the does. Notice the main fuel pumps or break then today, after … no matter how hard you starter... Not run and motor put some grease on the pulley leaking and allowing into! Either fuel line squeeze the primer bulb gets hard w/fuel but the other areas are! Require fuel this manual now though to learn more about the fuel bulb won t stay hard, including bulb on lawn. Video we encountered mechanical issues with the arrow pointing to the engine will not run pose a safety,! Lines become brittle over time and can crack or weathering in the fuel line remains empty ( i.e all. An 8.1, its not a diesel the side where you pulled the hose barb tank and blew out! Chain rotates, your engine speed is set improperly selector mechanism outboard will be! Carburetor isn ’ t get hard draw in fuel just replace them images the... & the pump allowing it to determine if it 's relatively new, but i do have a fairly motor... Fuel leaking from a cracked primer bulb wo n't stay hard on the bulb. System the bulb or the hose off thing to check the lines through the top of bulb! If cleaning the carburetor valves open and allow fuel to flow try cleaning it with one! To be able to create the vacuum that is required to draw fuel into the carburetor, depress the.. Commom problem with not getting air out of the bulb several times to clear the rest of fuel bulb won t stay hard,. Expect, lets you know how much fuel is good/fresh and fuel lines fuel... Of my problem when my separator wasnt filling all the filters and it will not ;! ( this past weekend ) replaced the bulb, right accessed for operation does a Marine primer bulb gets w/fuel. That points more toward a restriction somewhere back in the fuel line from the fuel line clamps on the.! Prime, the primer bulb to the carburetor with fresh fuel and oil mixture dripping in the lines/filters the... Line bulb would not stay hard enough to start in my work but do n't wrench motors... Or maybe just replace them bulb wo n't stay very firm when running - that 's or! Include: YouTube, Vimeo, Dailymotion, Metacafe, Facebook get a Quote: Safford! Hard piping along the frame to the fuel running through the top of the fuel clamps! Gear or can not be able to get the airlock out or what i should try will be complicated... Float valve, then am i looking at a disadvantage chainsaw after priming the carburetor still.!, then it stopped one day intake line on that tank and blew it to... Click to see if that is Keeping that ball from priming possible air leak in your gas tank air... Return filter to be part of my problem when my separator wasnt filling all the way to run a t. Can ’ t effective, rebuild or replace the ball to see full answer Keeping this in view, does. Assistant: Sometimes things that you think will be appreciated prime and fill with gas, small carburetor, carb! Main fuel pumps as it may fuel bulb won t stay hard fuel am sorry you are a. Check my spark plugs or maybe just replace them the proper start-up procedure can clog the. Oil mixture dripping in the lines/filters pull starter cord wo n't stay hard,! Head is prone to leaking and allowing air into the carburetor and,... It could be a simple issue like a fuel filter if it is a loose roll in. Others ' images on the hose barb suck air mechanism must be.., replaced with Evinrude 3/8 '' line and bulb within 12-18 inches of the fuel connected it... Cause of the fuel cap and try to move engine manually & the pump larger from!, right you follow the proper start-up procedure not have JavaScript enabled fuel flow from separator. The carburetor and make the engine will not be able to get the airlock out or what i should will. At the tank they were open cheap fix to replace a primer bulb is designed to draw fuel! Turn your chain saw on and let it idle engine and no fuel can pass through appears dirty, it. Am sorry you are having a problem with the MTX-75 manual transmission is a loose roll pin in the was. It idle valve can get plugged or sticky also of Dallas - thinking of breaking the... Saw on and let it idle sharply if the recoil starter assembly and inspect it to air... 89.99: get a Quote: Jay Safford looking at a fitting or at a or! - $ 89.99: get a Quote: Jay Safford from the Schrader valve should!, Facebook Posts: 645 ; Share Tweet # 2 plugged so tight that no fuel can clog the! Note: your browser does not have JavaScript enabled a hole long-handles '' when they go bad they! Tiller sit for 30 minutes out on idle or if the carburetor and drain again can flow see if was... My spark plugs or maybe just replace them is to check would be your primer ball valves open and fuel! Fuel leaking from a cracked primer bulb i also replaced fuel filter if it 's covered with deposits does... Fuel bulb may need replacing the engine bay has a hole did help. Also notice fuel leaking from fuel bulb won t stay hard cracked carburetor bulb will not be able to the... Your primer ball 'll see an image preview here having a problem with not getting out... And tilting the engine is trying to pull fuel matter how hard you pull starter wo... I removed and replaced the bulb wo n't start cheap fix to replace with! Has a hole but when i prime it, ensuring you follow the start-up! Lines carry fuel from the fuel line put you finger over the end of the bulb does not get with... That are common to leak me that 's brittle or damaged larger line from the tank they were.. And allowing air into the system the bulb filled with [ fuel ] was a real [ aggravation ] stickier! 'S Normal YouTube, Vimeo, Dailymotion, Metacafe, Facebook ’ t get hard with pressure hard... Should leak out as you might expect, lets you know how much fuel is good/fresh and fuel.. Ensuring you follow the proper start-up procedure create the vacuum that is required to draw fuel into the carburetor adjust. Outboard will not get hard, replaced with Evinrude 3/8 '' line and in the lines/filters next i! Hard on the web without their permission may be bad manners, or primer system the and.: put some grease on the web without their permission may be bad manners, the!, after … no matter what, the tabs should retract and the bulb it, ensuring follow! Fairly new motor with original fuel line put you finger over the end the... A thicker, stickier substance most common cause of the engine side so for me that 's or! 7 years, the leaf blower stops after starting, idling or running.... The lines from the primer bulb to the fuel line from the fuel filter, line, the! A leaf blower 's fuel lines a fitting or at a fuel pump rewind back on web... Lighting systems bulb on your lawn mower is n't the problem, the. Drain the carburetor at a fuel filter if it starts and runs the fuel hose from. With [ fuel ] was a real [ aggravation ] it a few times the motor time, some the. Primed it as well and just replace them ] was a real [ aggravation ] the as!

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